CN103490553A - Elastic resistance mechanical braking high-power soft-start device - Google Patents
Elastic resistance mechanical braking high-power soft-start device Download PDFInfo
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- CN103490553A CN103490553A CN201310422520.7A CN201310422520A CN103490553A CN 103490553 A CN103490553 A CN 103490553A CN 201310422520 A CN201310422520 A CN 201310422520A CN 103490553 A CN103490553 A CN 103490553A
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Abstract
The invention provides an elastic resistance mechanical braking high-power soft-start device. The elastic resistance mechanical braking high-power soft-start device comprises a main motor, an auxiliary motor, a chain, a planetary transmission system, a leftward-spun elastic resistance mechanical braking device and a right-spun elastic resistance mechanical braking device, wherein a transmission shaft of the main motor is connected with the planetary transmission system; a driving wheel is arranged on the transmission shaft of the main motor, wherein the driving wheel is connected with the auxiliary motor through a belt or the chain; a brake is arranged between the driving wheel and the planetary transmission system; an output shaft is installed on an enclosure, wherein the output shaft is sleeved with a transition pinion, and the transition pinion is meshed with a transition gear wheel on a planetary carrier; the leftward-spun elastic resistance mechanical braking device and the right-spun elastic resistance mechanical braking device are installed on the two sides of a planetary annular gear respectively. The elastic resistance mechanical braking high-power soft-start device is compact and simple in structure, capable of realizing bi-directional stepless speed regulation, a low starting current, soft start, soft parking, automatic overload protection and multi-point drive power balance, and good in anti-explosion performance.
Description
Technical field
The present invention relates to the mine engineering equipment technical field, refer in particular to a kind of elastic resistance mechanical braking high-power soft starting drive.
Background technology
Heavy loading machinery equipment large belt conveyor, large-scale hoister that for example colliery and mine are used, because the investment of a complete set of equipment is large, determining the production lifeblood of enterprise, and the soft starting device that therefore must possess function admirable is protected.Even so-called soft start refers to the speed that mechanical system also can be as requested under fully loaded operating mode, progressively overcome the inertia of whole system and start reposefully or stop.Soft start has the multilayer implication, concerning electrical network, in soft start-up process, wishes that the starting current of motor should be as far as possible little to the impact of electrical network; Concerning motor, the attack time that should manage to reduce starting current and shorten starting current; Concerning drive system and mechanical load, soft Starting Technology should guarantee to act on the impact energy minimum on plant equipment in startup and docking process, thus the useful life of the critical components such as prolonged deceleration device; Concerning the user, soft start must be controlled, and has the functions such as soft start, soft stop, Bidirectional stepless speed governing, automatic overload protection and many driving powers balance.With regard to current soft Starting Technology, can meet the above high-power soft starting drive of 200KW and only have the sticky technology of liquid and converter technique.The sticky technology of liquid is the mechanical soft starting device by the U.S., Germany's development, referred to as CST, its soft start principle is that the sticky brake of a set of liquid is installed on the unsteady ring gear of planetary transmission system, by controlling the distance between dynamic and static friction plate, shear the operational situation that fluid molecule regulates and controls ring gear, thereby realize the control to the running speed of output shaft.CST can realize soft start, soft stop, stepless speed regulation, automatic overload protection, many driving powers balance, the explosion-proof technology maturation, shortcoming is that starting current is larger, is 5 ~ 7 times of rated current, quick heating, energy consumption is large, maintenance cost is high, expensive.The frequency conversion soft start technology developed very fast in recent years, and the application started at high-power soft can be described as state-of-the-art, and its advantage is to realize soft start, soft stop, stepless speed regulation, automatic overload protection, many driving powers balance, and good energy-saving effect is arranged.Shortcoming is that electrical network is had to harmonic pollution, expensive, and explosion-proof technology is immature, there is no at present perfect explosion-proof technology scheme.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide that a kind of starting current is little, electric motor circuit breaking when soft start, soft stop, Bidirectional stepless speed governing, the negative lifting, automatic overload protection, Multipoint Drive power-balance, energy savings, explosion-proof are good, the high-power soft starting drive of low cost of manufacture.
For achieving the above object, technical scheme provided by the present invention is: a kind of elastic resistance mechanical braking high-power soft starting drive, it includes main motor, stand-by motor, belt or chain, and it also includes, and planetary transmission system, left-hand revolve the elastic resistance mechanical brake device, dextrad is revolved the elastic resistance mechanical brake device; Wherein, main motor transmission shaft is connected with planetary transmission system; Main motor transmission shaft is provided with drive, and drive is connected with stand-by motor by belt or chain; Be provided with brake between drive and planetary transmission system; Described planetary transmission system includes sun gear, planetary gear, planetary annular, planet carrier, transition gear wheel, transition pinion, output shaft; Sun gear is sleeved on power shaft, and power shaft is arranged on planet carrier one side, and is connected with main motor transmission shaft; Planetary gear is arranged on planet carrier, and the one side is meshed with sun gear, and opposite side is meshed with planetary annular; Output shaft is arranged on casing, is set with the transition pinion on output shaft, and the transition pinion is meshed with the transition gear wheel on planet carrier; Left-hand revolves the elastic resistance mechanical brake device, dextrad is revolved the elastic resistance mechanical brake device and is arranged on respectively the planetary annular both sides.
Described left-hand revolves the elastic resistance mechanical brake device and includes left ratchet ring, left ratchet-gear wheel, wherein, left ratchet-gear wheel is bolted on the planetary annular left side, left ratchet ring is sleeved on left ratchet-gear wheel, the bottom of housing is provided with stopper slot, limiting card on left ratchet ring is contained in stopper slot, and the coupling mechanism force of left ratchet ring is provided by left hydraulic cylinder, and left hydraulic cylinder provides power by the hydraulic system of proportional valve control.
Described dextrad is revolved the elastic resistance mechanical brake device and is included right ratchet ring, right ratchet-gear wheel, wherein, right ratchet-gear wheel is bolted on the right side of planetary annular, right ratchet ring is sleeved on right ratchet-gear wheel, the bottom of housing is provided with stopper slot, limiting card on right ratchet ring is contained in stopper slot, and right ratchet ring coupling mechanism force is provided by right hydraulic cylinder, and right hydraulic cylinder provides power by the hydraulic system of proportional valve control.
Compared with prior art, technique effect of the present invention is as follows:
The first, compact conformation is simple: structure of the present invention just increases a stand-by motor and two cover elastic resistance mechanical brake devices on the basis of common planetary reduction gear, than any soft start of prior art simple whole gathering all.
The second, starting current is little: drive after main motor reaches rated speed and restart main motor with stand-by motor, starting current approaches rated current, to electrical network not only without impacting but also pollution-free.
Three, good combination property: can realize reliably the Bidirectional stepless speed governing, soft start, soft stop, automatic overload protection, the Multipoint Drive power-balance, have again ripe explosion-proof technology with low cost.
Four, energy savings: it is that the little power ratio control of input can produce large braking power that the elastic resistance mechanical brake is applied in an outstanding advantage in the present invention, during negative the lifting, cuts off the power supply fully, and energy savings.
Five, wide accommodation: power accommodation of the present invention 0 ~ 10000KW, adapt to various large-scale running machines, particularly need explosion-proof work-yard more can bring into play its advantage.
Six, cost performance is high: manufacturing cost of the present invention is about 2/3rds of CST and frequency conversion soft start device, and starting current of the present invention is little, and liquid heats up slow, safeguards simply, with converter technology, compare, its explosion-proof technology maturation many.
Seven, simple to operate, easy to maintenance: operating system of the present invention both can manually be controlled, and available PLC is program control again; Maintenance is equal to common planetary reduction box, and Operation and Maintenance is simple and convenient.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the B-B generalized section in Fig. 1.
Fig. 3 is the A-A cut-away view in Fig. 1.
Embodiment
Below in conjunction with institute's drawings attached, the invention will be further described, preferred embodiment of the present invention is: referring to accompanying drawing 1 to accompanying drawing 3, the described high-power soft starting drive of the present embodiment includes that main motor 1, stand-by motor 2, belt or chain 3, planetary transmission system, left-hand revolve elastic resistance mechanical brake device 12, dextrad is revolved elastic resistance mechanical brake device 13, wherein, main motor 1 power transmission shaft is connected with planetary transmission system; Main motor 1 power transmission shaft is provided with drive, and drive is connected with stand-by motor 2 by belt or chain 3; Be provided with brake 4 between drive and planetary transmission system; Described planetary transmission system includes sun gear 5, planetary gear 6, planetary annular 7, planet carrier 8, transition gear wheel 9, transition pinion 10, output shaft 11; Sun gear 5 is sleeved on power shaft, and power shaft is arranged on planet carrier 8 one sides, and is connected with main motor 1 power transmission shaft; Planetary gear 6 is arranged on planet carrier 8, and the one side is meshed with sun gear 5, and opposite side is meshed with planetary annular 7; Output shaft 11 is arranged on casing, is set with transition pinion 10 on output shaft 11, and transition pinion 10 is meshed with the transition gear wheel 9 on planet carrier 8; Left-hand revolves elastic resistance mechanical brake device 12, dextrad is revolved elastic resistance mechanical brake device 13 and is arranged on respectively planetary annular 7 both sides.Described left-hand revolves elastic resistance mechanical brake device 12 and includes left ratchet ring 12.1, left ratchet-gear wheel 12.2, wherein, left ratchet-gear wheel 12.2 is fixed on planetary annular 7 left sides by bolt 12.5, left ratchet ring 12.1 is sleeved on left ratchet-gear wheel 12.2, the bottom of housing 14 is provided with stopper slot 14.1, guide vane end stop on left ratchet ring 12.1 is installed in stopper slot 14.1, the coupling mechanism force of left ratchet ring 12.1 is provided by left hydraulic cylinder 12.3, and left hydraulic cylinder 12.3 provides power by the hydraulic system 12.4 of proportional valve control.Described dextrad is revolved elastic resistance mechanical brake device 13 and is included right ratchet ring 13.1, right ratchet-gear wheel 13.2, wherein, right ratchet-gear wheel 13.2 is fixed on the right side of planetary annular 7 by bolt 12.5, right ratchet ring 13.1 is sleeved on right ratchet-gear wheel 13.2, the bottom of housing 14 is provided with stopper slot 14.1, limiting card on right ratchet ring 13.1 is contained in stopper slot 14.1, right ratchet ring 13.1 coupling mechanism forces are provided by right hydraulic cylinder 13.3, and right hydraulic cylinder 13.3 provides power by the hydraulic system 12.4 of proportional valve control.During use, first start stand-by motor 2, drive main motor 1 run-in synchronism, after main motor 1 reaches rated speed, main motor 1 energising, stand-by motor 2 outages.After main motor 1 runs well, because the planet carrier 8 that connects load has very large inertia force, at this moment only have planetary annular 7 rotations, handle dextrad and revolve ratchet ring 13.1 lockings of elastic resistance mechanical brake device 13, make ring gear 7 by reprieving speed, planet carrier 8 just can be by accelerating temporarily, until ring gear 7 stalls, load just can normally move.During parking, main motor runs well, and the right ratchet ring of handling the elastic resistance mechanical brake device unclamps, and makes ring gear 7 by accelerating temporarily, and load just can be by reprieving speed, until ring gear 7 full-speed operations, load is stopped transport fully.During negative the lifting, the motor outage, brake work limit sun gear is motionless, and planet carrier 8 rotations drive ring gear 7 and rotate, and handle left elastic resistance mechanical brake device and control the movement velocity that the rotating speed of ring gear 7 just can be controlled negative lifting fully.
The embodiment of the above is only the present invention's preferred embodiment, not with this, limits practical range of the present invention, therefore the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (3)
1. an elastic resistance mechanical braking high-power soft starting drive, it includes main motor (1), stand-by motor (2), belt or chain (3), it is characterized in that: it also includes, and planetary transmission system, left-hand revolve elastic resistance mechanical brake device (12), dextrad is revolved elastic resistance mechanical brake device (13), wherein, main motor (1) power transmission shaft is connected with planetary transmission system; Main motor (1) power transmission shaft is provided with drive, and drive is connected with stand-by motor (2) by belt or chain (3); Be provided with brake (4) between drive and planetary transmission system; Described planetary transmission system includes sun gear (5), planetary gear (6), planetary annular (7), planet carrier (8), transition gear wheel (9), transition pinion (10), output shaft (11); Sun gear (5) is sleeved on power shaft, and power shaft is arranged on planet carrier (8) one sides, and is connected with main motor (1) power transmission shaft; It is upper that planetary gear (6) is arranged on planet carrier (8), and the one side is meshed with sun gear (5), and opposite side is meshed with planetary annular (7); Output shaft (11) is arranged on casing, is set with transition pinion (10) on output shaft (11), and transition pinion (10) is meshed with the transition gear wheel (9) on planet carrier (8); Left-hand revolves elastic resistance mechanical brake device (12), dextrad is revolved elastic resistance mechanical brake device (13) and is arranged on respectively planetary annular (7) both sides.
2. a kind of elastic resistance mechanical braking high-power soft starting drive according to claim 1, it is characterized in that: left-hand revolves elastic resistance mechanical brake device (12) and includes left ratchet ring (12.1), left ratchet-gear wheel (12.2), wherein, left ratchet-gear wheel (12.2) is fixed on planetary annular (7) left side by bolt (12.5), left ratchet ring (12.1) is sleeved on left ratchet-gear wheel (12.2), the bottom of housing (14) is provided with stopper slot (14.1), limiting card on left ratchet ring (12.1) is contained in stopper slot (14.1), the coupling mechanism force of left ratchet ring (12.1) is provided by left hydraulic cylinder (12.3), left hydraulic cylinder (12.3) provides power by the hydraulic system (12.4) of proportional valve control.
3. a kind of elastic resistance mechanical braking high-power soft starting drive according to claim 1, it is characterized in that: dextrad is revolved elastic resistance mechanical brake device (13) and is included right ratchet ring (1231), right ratchet-gear wheel (13.2), wherein, right ratchet-gear wheel (13.2) is fixed on the right side of planetary annular (7) by bolt (12.5), right ratchet ring (13.1) is sleeved on right ratchet-gear wheel (13.2), the bottom of housing (14) is provided with stopper slot (14.1), limiting card on right ratchet ring (13.1) is contained in stopper slot (14.1), right ratchet ring (13.1) coupling mechanism force is provided by right hydraulic cylinder (13.3), right hydraulic cylinder (13.3) provides power by the hydraulic system (12.4) of proportional valve control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310422520.7A CN103490553B (en) | 2013-09-17 | 2013-09-17 | A kind of elastic resistance mechanical braking high-power soft starting drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310422520.7A CN103490553B (en) | 2013-09-17 | 2013-09-17 | A kind of elastic resistance mechanical braking high-power soft starting drive |
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| CN103490553A true CN103490553A (en) | 2014-01-01 |
| CN103490553B CN103490553B (en) | 2016-02-24 |
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| CN201310422520.7A Expired - Fee Related CN103490553B (en) | 2013-09-17 | 2013-09-17 | A kind of elastic resistance mechanical braking high-power soft starting drive |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046351A (en) * | 2016-12-07 | 2017-08-15 | 贺业开 | Soft start formula asynchronous motor |
| CN111431330A (en) * | 2020-04-26 | 2020-07-17 | 韩建辉 | Quick-start excitation efficient alternating current motor |
| CN114345682A (en) * | 2022-01-10 | 2022-04-15 | 重庆第二师范学院 | A screening installation for pubescent angelica root processing |
Citations (4)
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| JP2001159384A (en) * | 1999-12-02 | 2001-06-12 | Toyota Motor Corp | Engine starter |
| CN1904405A (en) * | 2005-07-26 | 2007-01-31 | 杨铭域 | Anti locking method of ABS brake and its device |
| CN201111324Y (en) * | 2007-02-05 | 2008-09-03 | 刘跃群 | Energy-saving apparatus of motor |
| CN102897158A (en) * | 2012-05-28 | 2013-01-30 | 杜占强 | Slippage preventing system for vehicular hill starting |
-
2013
- 2013-09-17 CN CN201310422520.7A patent/CN103490553B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001159384A (en) * | 1999-12-02 | 2001-06-12 | Toyota Motor Corp | Engine starter |
| CN1904405A (en) * | 2005-07-26 | 2007-01-31 | 杨铭域 | Anti locking method of ABS brake and its device |
| CN201111324Y (en) * | 2007-02-05 | 2008-09-03 | 刘跃群 | Energy-saving apparatus of motor |
| CN102897158A (en) * | 2012-05-28 | 2013-01-30 | 杜占强 | Slippage preventing system for vehicular hill starting |
Non-Patent Citations (1)
| Title |
|---|
| 胡治民等: "行星齿轮传动设备无级调速与辅助调速装置的匹配研究", 《机床与液压》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046351A (en) * | 2016-12-07 | 2017-08-15 | 贺业开 | Soft start formula asynchronous motor |
| CN107046351B (en) * | 2016-12-07 | 2023-08-25 | 贺业开 | Soft start type asynchronous motor |
| CN111431330A (en) * | 2020-04-26 | 2020-07-17 | 韩建辉 | Quick-start excitation efficient alternating current motor |
| CN114345682A (en) * | 2022-01-10 | 2022-04-15 | 重庆第二师范学院 | A screening installation for pubescent angelica root processing |
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| CN103490553B (en) | 2016-02-24 |
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