CN201601568U - Controllable soft-start electric roller - Google Patents
Controllable soft-start electric roller Download PDFInfo
- Publication number
- CN201601568U CN201601568U CN2009202947161U CN200920294716U CN201601568U CN 201601568 U CN201601568 U CN 201601568U CN 2009202947161 U CN2009202947161 U CN 2009202947161U CN 200920294716 U CN200920294716 U CN 200920294716U CN 201601568 U CN201601568 U CN 201601568U
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- China
- Prior art keywords
- friction plate
- start electric
- planet carrier
- shaft
- soft start
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Abstract
The utility model relates to a controllable soft-start electric roller, which comprises a roller body, a left bearing block, a right bearing block and a brake disposed on the left bearing block. The brake is provided with a movable friction plate, a static friction plate and an air sac, wherein the air sac controls contact pressure between the movable friction plate and the static friction plate through inflating and deflating. A left flange and a right flange shaft are arranged inside the roller body, and an output gear ring is fixed between the left flange and the right flange shaft. A brake shaft is fixed at the center of the left flange, and the movable friction plate is fixed on the brake shaft. The output gear ring is fixedly connected with the roller body. The controllable soft-start electric roller has large power, simple structure, small volume, light weight, high efficiency and evident effect, and is widely applied to large belt conveyors for port industry, mining industry, metallurgical industry, electric power industry and the like.
Description
Technical field
The utility model relates to a kind of motorized pulleys, relates 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 that need be less prolongs start-up time, and reach 20～60 seconds the start-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 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 suitable 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 drive unit of belt feeder, but it is very high-power that existing motorized pulleys 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.
The utility model content
The purpose of this utility model is a difficult problem that solves prior art, provides a kind of power big, simple in structure, and volume is little, in light weight, efficient is high, the outstanding effect controllable soft start electric drum.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of controllable soft start electric drum, comprise barrel, left shaft holder and right bearing seat, also comprise the brake that is provided with on the left shaft holder, described brake is provided with movable friction plate, static friction sheet, air bag; Described air bag is controlled contact pressure between described movable friction plate and the static friction sheet by inflation and exhaust; Be provided with left flange and right flange shaft in the described barrel, described left flange and right flange shaft center fixed have output gear; Described left flange center is fixed with brake axle, and described movable friction plate is fixed on the brake axle; Described output gear is fixedlyed connected with barrel.
As preferably, also be fixed with planet carrier in the middle of described left flange and the right flange shaft, be provided with sun gear and planetary gear in the described planet carrier.
As preferably, described output gear inside is provided with elementary planet carrier, is provided with primary sun wheel and elementary planetary gear in the described elementary planet carrier.
As preferably, described brake axle cooperates by involute spline with movable friction plate.
As preferably, brake axle is provided with velometer.
As preferably, be provided with waterway and spring in the described static friction sheet, described waterway top is provided with water inlet, and the waterway bottom is provided with delivery port.
As preferably, irritating in the cylinder has lubricating oil, and described right flange shaft place is provided with oil filler point.
As preferably, described primary sun wheel is spent strong the cooperation with power shaft by rectangle.
As preferably, described planet carrier also is provided with clearance adjusting screw.
As preferably, described elementary planet carrier is connected by the tooth cover that floats with sun gear.
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 brake is in open mode, movable friction plate, brake axle, left flange, right flange shaft and planet carrier can freely rotate, therefore when electric motor starting, power is imported by power shaft, through elementary planetary structure transmission, reach sun gear by the tooth cover that floats, because output gear and barrel can't rotate because of big resistance, so left flange, right flange shaft, planet 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 apply braking force to movable friction plate, make movable friction plate, brake axle, left flange, right flange shaft and planet carrier rotary resistance increasing, and slowly be decelerated to motionless; Meanwhile, the input 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.
In the whole process that starts, can be by the pressure in the FEEDBACK CONTROL air bag of velometer on the brake axle, thus the output speed change procedure of index drum body.
In sum, the utlity model has following beneficial effect:
1, structure function of the present utility model makes motor start under unloaded fully state, and motor does not have long starting current, and electrical network is not had impact, protects motor simultaneously, and mechanical shock is little;
2, the utlity model has start-up time, add-deceleration can regulate arbitrarily, controlled ability is strong, the soft start performance is good;
3, the utility model can not have a power failure when waiting, the number of times that reduces electric motor starting and close, protection motor;
4, the utility model can carry out overload protection to drive system;
5, the utility model adopts pneumatic control, water cooling, the trouble of no leakage of oil;
6, the utility model does not have consumable accessory, high life;
7, the utility model is simple in structure, and volume is little, and is in light weight, the efficient height, 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 utility model;
Among the figure, 1, brake, 2, water inlet, 3, static friction sheet, 4, left shaft holder, 5, brake axle, 6, barrel, 7, planetary gear, 8, output gear, 9, sun gear, 10, power shaft, 11, elementary planetary gear, 12, primary sun wheel, 13, oil filler point, 14, the right bearing seat, 15, motor, 16, air bag, 17, spring, 18, movable friction plate, 19, delivery port, 20, waterway, 21, velometer, 22, left flange, 23, planet carrier, 24, unsteady tooth cover, 25, elementary planet carrier, 26, right flange shaft, 27, clearance adjusting screw.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present utility model.
A kind of controllable soft start electric drum comprises barrel 6, left shaft holder 4, is arranged at the brake 1, the right bearing seat 14 that are provided with on the left shaft holder 4; Described brake 1 is provided with movable friction plate 18, static friction sheet 3, air bag 8 and brake axle 5; Described air bag 16 is controlled contact pressure between described movable friction plate 18 and the static friction sheet 3 by inflation and exhaust; Be provided with waterway 20 and spring 17 in the described static friction sheet 3, described waterway 20 tops are provided with water inlet 2, and waterway 20 bottoms are provided with delivery port 19; Be provided with left flange 22 and right flange shaft 26 in the described barrel 6, described left flange 22 and right flange shaft 26 center fixed have output gear 8 and planet carrier 23; Described left flange 22 center fixation have brake axle 5, and described movable friction plate 19 is fixed on the brake axle 5 by involute spline, also are provided with velometer 21 on the described brake axle 5; Described output gear 8 inside also are provided with elementary planet carrier 25, are provided with primary sun wheel 12 and elementary planetary gear 11 in the described elementary planet carrier 25.Be provided with sun gear 9, planetary gear 7 and clearance adjusting screw 27 in the described planet carrier 23; Described output gear 8 is fixedlyed connected with barrel 6.Described primary sun wheel 12 cooperates by rectangular spline with described power shaft 10 and fixedlys connected with motor 15, and described elementary planet carrier 25 overlaps 24 with described sun gear 9 by the tooth that floats fixedlys connected; Irritating in the barrel 6 has lubricating oil, and described right flange shaft 26 places are provided with oil filler point 13, and in the cylinder running, the lubricating oil that is driven by barrel 6 inner surfaces can be flowed into by oil filler point 13, and lubricated power shaft 10; Described 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, brake 1 interior movable friction plate 18 and static friction sheet 3 thrown off brakeless power fully; When motor 15 starts, power is by power shaft 10 inputs, and the transmission by primary sun wheel 12, elementary planetary gear 11, elementary planet carrier 25, sun gear 9 and planetary gear 7, planet carrier 23 left flanges 22 of drive and right flange shaft 26 and brake axle 5 and movable friction plate 18 begin to rotate, water cooling plant is opened simultaneously, cooling water enters waterway 20 from water inlet 2, and behind the cooling static friction sheet 3, hot water flows out from delivery port 19.After motor 15 normally starts to rated speed, 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 flange shaft 26, planet carrier 23, left flange 22, brake axle 5 and movable friction plate 18 are rotated is increasing; Meanwhile the input 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 flange shaft 26 and planet carrier 23 are also corresponding slows down, velometer 21 also begins monitoring, when the rotating speed of brake axle 5 reduce to rated speed 90% the time, the pressure of control air bag 16, keep this rotating speed, belt feeder is moved fully, and air bag 16 continues decompression more then, and it is motionless that the deceleration by 10% decelerates to brake axle 5; Meanwhile movable friction plate 18, left flange 22, planet carrier 23 and right flange 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 brake 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 normal speed, thereby plays overload protective function.
As long as the movable friction plate of brake 18 has relative motion with static friction sheet 3, water cooling plant is just opened in the whole service process, and cooling water just enters waterway 20 from water inlet 2, behind the cooling static friction sheet 3, flow out from delivery port 19, when the cooling water that comes out is lower than allowable temperature, water cooling plant just cuts out.
Embodiment 2:
When load need be shut down, water cooling plant was started working, and cooling water enters waterway 20 from water inlet 2, behind the cooling static friction sheet 3, flowed out from delivery port 19.External air source is given air bag 16 air feed, air bag 16 internal pressures increase gradually, movable friction plate 18 and static friction sheet 3 braking force slowly reduce, 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, braking force continues to be reduced to 0, movable friction plate 18 and static friction sheet 3 break away from fully, belt feeder stall this moment, motor 15 only is with planet carrier 23, left side flange 22, right flange shaft 26, brake axle 5 and movable friction plate 18 rotate, then the power supply of disable motor 15, motor 15 stops, close source of the gas then, treat that cooling water temperature that delivery port 19 flows out is reduced to permissible value after, close water-cooling system.
Claims (10)
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 brake that is provided with on the left shaft holder (4), described brake (1) is provided with movable friction plate (18), static friction sheet (3), air bag (16); Described air bag (16) is controlled contact pressure between described movable friction plate (18) and the static friction sheet (3) by inflation and exhaust; Be provided with left flange (22) and right flange shaft (26) in the described barrel (6), described left flange (22) and right flange shaft (26) center fixed have output gear (8); Described left flange (22) center fixation has brake axle (5), and described movable friction plate (18) is fixed on the brake axle (5); Described output gear (8) is fixedlyed connected with barrel (6).
2. according to the described a kind of controllable soft start electric drum of claim 1, it is characterized in that: also be fixed with planet carrier (23) in the middle of described left flange (22) and the right flange shaft (26), be provided with sun gear (9) and planetary gear (7) in the described planet carrier (23).
3. according to the described a kind of controllable soft start electric drum of claim 1, it is characterized in that: described output gear (8) inside is provided with elementary planet carrier (25), is provided with primary sun wheel (12) and elementary planetary gear (11) in the described elementary planet carrier (25).
4. according to the described a kind of controllable soft start electric drum of claim 1, it is characterized in that: described brake axle (5) cooperates by involute spline with movable friction plate (18).
5. according to the described a kind of controllable soft start electric drum of claim 1, it is characterized in that: brake axle (5) is provided with velometer (21).
6. according to the described 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 described static friction sheet (3), described waterway (20) top is provided with water inlet (2), and waterway (20) bottom is provided with delivery port (19).
7. according to the described a kind of controllable soft start electric drum of claim 1, it is characterized in that: irritating in the cylinder has lubricating oil, and described right flange shaft (26) locates to be provided with oil filler point (13).
8. according to the described a kind of controllable soft start electric drum of claim 1, it is characterized in that: described primary sun wheel (9) is spent strong the cooperation with power shaft (10) by rectangle.
9. according to the described a kind of controllable initiating planetary reduction gear of claim 1, it is characterized in that: described planet carrier (23) also is provided with clearance adjusting screw (27).
10. according to the described a kind of controllable initiating planetary reduction gear of claim 1, it is characterized in that: described elementary planet carrier (25) is connected by the tooth cover (24) that floats with sun gear (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202947161U CN201601568U (en) | 2009-12-20 | 2009-12-20 | Controllable soft-start electric roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202947161U CN201601568U (en) | 2009-12-20 | 2009-12-20 | Controllable soft-start electric roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201601568U true CN201601568U (en) | 2010-10-06 |
Family
ID=42812628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202947161U Expired - Lifetime CN201601568U (en) | 2009-12-20 | 2009-12-20 | Controllable soft-start electric roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201601568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792060B (en) * | 2009-12-20 | 2012-01-25 | 湖州电动滚筒有限公司 | Controllable soft start electric drum |
| CN106050949A (en) * | 2016-07-25 | 2016-10-26 | 西安科技大学 | Flexible torque increment coupler for soft start |
-
2009
- 2009-12-20 CN CN2009202947161U patent/CN201601568U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792060B (en) * | 2009-12-20 | 2012-01-25 | 湖州电动滚筒有限公司 | Controllable soft start electric drum |
| CN106050949A (en) * | 2016-07-25 | 2016-10-26 | 西安科技大学 | Flexible torque increment coupler for soft start |
| CN106050949B (en) * | 2016-07-25 | 2018-11-23 | 西安科技大学 | A kind of flexible torque increment shaft coupling for soft start |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101006 Effective date of abandoning: 20091220 |