CN101792060B - Controllable soft start electric drum - Google Patents
Controllable soft start electric drum Download PDFInfo
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- CN101792060B CN101792060B CN2009101571381A CN200910157138A CN101792060B CN 101792060 B CN101792060 B CN 101792060B CN 2009101571381 A CN2009101571381 A CN 2009101571381A CN 200910157138 A CN200910157138 A CN 200910157138A CN 101792060 B CN101792060 B CN 101792060B
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- friction plate
- soft start
- start electric
- electric drum
- pinion carrier
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Abstract
The invention relates to a controllable soft start electric drum, comprising a drum body, a left bearing pedestal, a right bearing pedestal and a brake arranged on the left bearing pedestal; the brake is provided with a dynamical friction plate, a static friction plate and an air sac; the air sac controls the contact pressure between the dynamical friction plate and the static friction plate through air inflation and air exhaust; a left flange and a right flange shaft are arranged in the drum body, an output gear ring is arranged between the left flange and the right flange shaft; a brake shaft is fixed at the center of the left flange, and the dynamical friction plate is fixed on the brake shaft; and the output gear ring is fixedly connected with the drum body. The invention has large power, simple structure, small volume, light weight, high efficiency and obvious effect, and can be widely applied to large-scale belt conveyor of ports, mines, metallurgy, electric power and other industries.
Description
Technical field
The present invention relates to a kind of motorized pulleys, relate in particular to a kind of controllable soft start electric drum.
Background technology
Present large-scale belt feeder needs bringing onto load to start, or even is with heavy duty to start, and damages in starting impact for preventing equipment, and startup acceleration/accel that need be less prolongs run up time, and reach 20～60 seconds the run up time of some belt feeder.Because the starting current of motor is 7～8 times of rated current; Under the situation of the startup acceleration/accel that satisfies belt feeder; Must prolong the life period of electric motor starting electric current, excessive starting current can cause sizable impact to electrical network, and for a long time big simultaneously electric current also can burn motor.For the band that satisfies motor carries startup, add large power supply and capacity motor at double, can cause cooresponding waste undoubtedly.Therefore the startup of large-scale belt feeder must be adopted controllable soft start.Motorized pulleys have that compact conformation, volume are little, in light weight, advantage such as little takes up room; It is the most desirable actuating device of belt feeder; But it is very high-power that the prior electric cylinder all can't be accomplished, generally has only below the 132kW, and its underlying cause is exactly the soft start problem that can't solve motorized pulleys.
Summary of the invention
The objective of the invention is to solve the difficult problem of prior art, provide a kind of power big, simple in structure, volume is little, in light weight, efficient is high, the outstanding effect controllable soft start electric drum.
Above-mentioned technical purpose of the present invention is achieved through following technical scheme: a kind of controllable soft start electric drum; Comprise barrel, left shaft holder and right bearing seat; Also comprise the drg that is provided with on the left shaft holder, said drg is provided with movable friction plate, static friction sheet, air bag; Said air bag is controlled the contact pressure between said movable friction plate and the static friction sheet through inflation and exhaust; Be provided with left flange and right flanged shaft in the said barrel, said left flange and right flanged shaft center fixed have output gear; Said left flange center is fixed with brake axle, and said movable friction plate is fixed on the brake axle; Said output gear is captiveed joint with barrel.
As preferably, also be fixed with pinion carrier in the middle of said left flange and the right flanged shaft, be provided with sun wheel and satellite gear in the said pinion carrier.
As preferably, said output gear inside is provided with elementary pinion carrier, is provided with primary sun wheel and elementary satellite gear in the said elementary pinion carrier.
As preferably, said brake axle cooperates through invoice serration with movable friction plate.
As preferably, brake axle is provided with velometer.
As preferably, be provided with waterway and spring in the said static friction sheet, said waterway top is provided with water inlet, and the waterway bottom is provided with water outlet.
As preferably, irritating in the cylinder has lubricating oil, and said right flanged shaft place is provided with oil hole.
As preferably, said primary sun wheel is spent strong the cooperation with input shaft through rectangle.
As preferably, said pinion carrier also is provided with clearance adjusting screw.
As preferably, said elementary pinion carrier is connected through the tooth cover that floats with sun wheel.
Before the startup,, therefore very big resistance is arranged, make barrel and rotate with output gear that barrel is fixedly linked very big resistance is all arranged because of barrel has the bulk loads of belt feeder; And drg is in open mode; Movable friction plate, brake axle, left flange, right flanged shaft and pinion carrier can freely be rotated, and therefore when electric motor starting, power is imported by input shaft; Through elementary planetary structure transmission; Reach sun wheel through the tooth cover that floats, because output gear and barrel can't rotate because of resistance greatly, so left flange, right flanged shaft, pinion carrier, brake axle and movable friction plate begin rotation under the driving of motor.When electric motor starting finishes, after promptly motor speed is stablized, adjust the pressure in the air bag, slowly give movable friction plate brake activation power, make movable friction plate, brake axle, left flange, right flanged shaft and pinion carrier rotary resistance increasing, and slowly be decelerated to motionless; Meanwhile, the imput power of motor is also increasing, and the power that barrel and output gear obtain is also increasing, and beginning slowly overcomes resistance rotates, and slowly accelerates to rated speed of rotation.
In the whole process that starts, can pass through the interior pressure of controlled reset air bag of velometer on the brake axle, thus the output speed change procedure of index drum body.
In sum, the present invention has following beneficial effect:
1, structure function of the present invention makes motor under unloaded fully state, start, and motor does not have long starting current, and electrical network is not had impact, protects motor simultaneously, and physical shock is little;
2, the present invention have run up time, add-deceleration/decel can regulate arbitrarily, controlled ability is strong, the soft start performance is good;
3, the present invention can not have a power failure when waiting, reduces electric motor starting and the number of times of closing, the protection motor;
4, the present invention can carry out overload protection to driving system;
5, the present invention adopts air operated control, water cooling, the trouble of no leakage of oil;
6, the present invention does not have consumable accessory, high life;
7, the present invention is simple in structure, and volume is little, and is in light weight, and efficient is high, and effect is obvious, and Operation and Maintenance is simple, with low cost simultaneously.
Description of drawings
Fig. 1 is a structure internal anatomy of the present invention;
Among the figure, 1, drg, 2, water inlet, 3, the static friction sheet, 4, left shaft holder, 5, brake axle; 6, barrel, 7, satellite gear, 8, output gear, 9, sun wheel, 10, input shaft, 11, elementary satellite gear; 12, primary sun wheel, 13, oil hole, 14, the right bearing seat, 15, motor, 16, air bag, 17, spring; 18, movable friction plate, 19, water outlet, 20, waterway, 21, velometer, 22, left flange; 23, pinion carrier, 24, the tooth cover that floats, 25, elementary pinion carrier, 26, right flanged shaft, 27, clearance adjusting screw.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
This specific embodiment only is to explanation of the present invention; It is not a limitation of the present invention; Those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification sheets, but as long as in claim scope of the present invention, all receive the protection of patent law.
A kind of controllable soft start electric drum comprises barrel 6, left shaft holder 4, is arranged at the drg 1, the right bearing seat 14 that are provided with on the left shaft holder 4; Said drg 1 is provided with movable friction plate 18, static friction sheet 3, air bag 8 and brake axle 5; Said air bag 16 is controlled the contact pressure between said movable friction plate 18 and the static friction sheet 3 through inflation and exhaust; Be provided with waterway 20 and spring 17 in the said static friction sheet 3, said waterway 20 tops are provided with water inlet 2, and waterway 20 bottoms are provided with water outlet 19; Be provided with left flange 22 and right flanged shaft 26 in the said barrel 6, said left flange 22 has output gear 8 and pinion carrier 23 with right flanged shaft 26 center fixed; Said left flange 22 center fixation have brake axle 5, and said movable friction plate 19 is fixed on the brake axle 5 through invoice serration, also are provided with velometer 21 on the said brake axle 5; Said output gear 8 inside also are provided with elementary pinion carrier 25, are provided with primary sun wheel 12 and elementary satellite gear 11 in the said elementary pinion carrier 25.Be provided with sun wheel 9, satellite gear 7 and clearance adjusting screw 27 in the said pinion carrier 23; Said output gear 8 is captiveed joint with barrel 6.Said primary sun wheel 12 cooperates through rectangular spline with said input shaft 10 and captives joint with motor 15, and said elementary pinion carrier 25 and said sun wheel 9 are overlapped 24 through the tooth that floats and captiveed joint; Irritating in the barrel 6 has lubricating oil, and said right flanged shaft 26 places are provided with oil hole 13, and in the cylinder operational process, the lubricating oil that is driven by barrel 6 inside faces can be flowed into by oil hole 13, and lubricated input shaft 10; Said brake axle 5 is provided with velometer 21.
Embodiment 1:
Before electric motor starting, external air source is given air bag 16 air feed, makes air bag 16 reach specified air pressure, and this moment, drg 1 interior movable friction plate 18 was thrown off brakeless power fully with static friction sheet 3; When motor 15 starts; Power is imported through input shaft 10, and passes through the transmission of primary sun wheel 12, elementary satellite gear 11, elementary pinion carrier 25, sun wheel 9 and satellite gear 7, and pinion carrier 23 drives left flange 22 and begins rotation with right flanged shaft 26 and brake axle 5 with movable friction plate 18; Water cooling plant is opened simultaneously; Cooling water expansion tank gets into waterway 20 from water inlet 2, and behind the cooling static friction sheet 3, hot water flows out from water outlet 19.After motor 15 normally starts to rated speed of rotation; Air bag 16 begins slowly decompression; Movable friction plate 18 begins to contact under the effect of spring 17 with static friction sheet 3 and produces braking force and increase gradually, and the resistance that right flanged shaft 26, pinion carrier 23, left flange 22, brake axle 5 and movable friction plate 18 are rotated is increasing; Meanwhile the imput power of motor 15 is also increasing, and the outputting power of barrel 6 and output gear 8 increases gradually.After the outputting power of barrel 6 increased to a certain degree, barrel 6 beginnings slowly overcome resistance rotated, and slowly quickens; Meanwhile movable friction plate 18, brake axle 5, left flange 22 and right flanged shaft 26 and pinion carrier 23 are also corresponding slows down; Velometer 21 also begin the monitoring, when the rotating speed of brake axle 5 reduce to rated speed of rotation 90% the time, control air bag 16 pressure; Keep this rotating speed; Belt feeder is moved fully, and air bag 16 continues decompression more then, and it is motionless that the deceleration/decel by 10% decelerates to brake axle 5; Meanwhile movable friction plate 18, left flange 22, pinion carrier 23 and right flanged shaft 26 also corresponding slow to motionless.Last air bag 16 remains on output shaft 5 motionless pressure and moves down.
When overload appearred in load, the movable friction plate 18 and the static friction sheet 3 of drg 1 just produced corresponding relative motion by overload quantity, make corresponding the slowing down of speed of barrel 6, the belt feeder operation of slowing down; After the overload, barrel 6 turns back to command speed, thereby plays overload protective function.
As long as the movable friction plate of drg 18 has relative motion with static friction sheet 3, water cooling plant is just opened in the whole service process, and cooling water expansion tank just gets into waterway 20 from water inlet 2; Behind the cooling static friction sheet 3; Flow out from water outlet 19, when the cooling water expansion tank that comes out is lower than allowable temperature, water cooling plant just cuts out.
Embodiment 2:
When need of load was shut down, water cooling plant was started working, and cooling water expansion tank gets into waterway 20 from water inlet 2, behind the cooling static friction sheet 3, flowed out from water outlet 19.External air source is given air bag 16 air feed, and air bag 16 internal pressures increase gradually, and movable friction plate 18 slowly reduces with static friction sheet 3 braking forces; The speed of barrel 6 and output gear 8 slows down gradually to motionless, and the pressure of air bag 16 continues to increase gradually and reach rated pressure again, and braking force continues to be reduced to 0; Movable friction plate 18 breaks away from static friction sheet 3 fully, belt feeder stall this moment, and motor 15 only is with pinion carrier 23, left flange 22, right flanged shaft 26, brake axle 5 and movable friction plate 18 to rotate; The power supply of disable motor 15 then, motor 15 stops, and closes source of the gas then; After treating that cooling water temperature that water outlet 19 flows out is reduced to permissible value, close water-cooling system.
Claims (8)
1. controllable soft start electric drum; Comprise barrel (6), left shaft holder (4) and right bearing seat (14); It is characterized in that: also comprise the drg that is arranged on the left shaft holder (4), said drg (1) is provided with movable friction plate (18), static friction sheet (3), air bag (16); Said air bag (16) is controlled the contact pressure between said movable friction plate (18) and the static friction sheet (3) through inflation and exhaust; Be provided with left flange (22) and right flanged shaft (26) in the said barrel (6), said left flange (22) and right flanged shaft (26) center fixed have output gear (8); Said left flange (22) center fixation has brake axle (5), and said movable friction plate (18) is fixed on the brake axle (5); Said output gear (8) is captiveed joint with barrel (6); Said output gear (8) inside is provided with elementary pinion carrier (25), is provided with primary sun wheel (12) and elementary satellite gear (11) in the said elementary pinion carrier (25).
2. according to the said a kind of controllable soft start electric drum of claim 1, it is characterized in that: also be fixed with pinion carrier (23) in the middle of said left flange (22) and the right flanged shaft (26), be provided with sun wheel (9) and satellite gear (7) in the said pinion carrier (23).
3. according to the said a kind of controllable soft start electric drum of claim 1, it is characterized in that: said brake axle (5) cooperates through invoice serration with movable friction plate (18).
4. according to the said a kind of controllable soft start electric drum of claim 1, it is characterized in that: brake axle (5) is provided with velometer (21).
5. according to the said a kind of controllable soft start electric drum of claim 1; It is characterized in that: be provided with waterway (20) and spring (17) in the said static friction sheet (3); Said waterway (20) top is provided with water inlet (2), and waterway (20) bottom is provided with water outlet (19).
6. according to the said a kind of controllable soft start electric drum of claim 1, it is characterized in that: irritating in the cylinder has lubricating oil, and said right flanged shaft (26) locates to be provided with oil hole (13).
7. according to the said a kind of controllable soft start electric drum of claim 2, it is characterized in that: said pinion carrier (23) also is provided with clearance adjusting screw (27).
8. according to the said a kind of controllable soft start electric drum of claim 2, it is characterized in that: said elementary pinion carrier (25) is connected through the tooth cover (24) that floats with sun wheel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101571381A CN101792060B (en) | 2009-12-20 | 2009-12-20 | Controllable soft start electric drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101571381A CN101792060B (en) | 2009-12-20 | 2009-12-20 | Controllable soft start electric drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101792060A CN101792060A (en) | 2010-08-04 |
| CN101792060B true CN101792060B (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101571381A Expired - Fee Related CN101792060B (en) | 2009-12-20 | 2009-12-20 | Controllable soft start electric drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101792060B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936404A (en) * | 2016-05-18 | 2016-09-14 | 浙江海洋大学 | Internal driving conveying belt for petroleum processing |
| CN107032055A (en) * | 2017-05-23 | 2017-08-11 | 唐山溢洋电气科技有限公司 | Built-in type low-speed big high-power explosion-proof motorized pulleys |
| CN111686493A (en) * | 2020-06-30 | 2020-09-22 | 河南沃海水务有限公司 | Municipal administration sewage filter equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221670A (en) * | 1968-06-11 | 1971-02-03 | George Faulkner | Improvements in or relating to powered rollers or drums for endless conveyors |
| US5442248A (en) * | 1994-04-11 | 1995-08-15 | Interroll Holding, A.G. | Motorized pulley with integral electrical connector |
| US6402653B1 (en) * | 1997-10-07 | 2002-06-11 | Interroll Holding Ag | Drum motor |
| CN2725637Y (en) * | 2004-06-09 | 2005-09-14 | 山东创新石油技术有限公司 | External speed changing electric rotary drum |
| CN201601568U (en) * | 2009-12-20 | 2010-10-06 | 湖州电动滚筒有限公司 | Controllable soft-start electric roller |
-
2009
- 2009-12-20 CN CN2009101571381A patent/CN101792060B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1221670A (en) * | 1968-06-11 | 1971-02-03 | George Faulkner | Improvements in or relating to powered rollers or drums for endless conveyors |
| US5442248A (en) * | 1994-04-11 | 1995-08-15 | Interroll Holding, A.G. | Motorized pulley with integral electrical connector |
| US6402653B1 (en) * | 1997-10-07 | 2002-06-11 | Interroll Holding Ag | Drum motor |
| CN2725637Y (en) * | 2004-06-09 | 2005-09-14 | 山东创新石油技术有限公司 | External speed changing electric rotary drum |
| CN201601568U (en) * | 2009-12-20 | 2010-10-06 | 湖州电动滚筒有限公司 | Controllable soft-start electric roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101792060A (en) | 2010-08-04 |
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Granted publication date: 20120125 Termination date: 20151220 |
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