CN101420196A - Idle load controllable initiating and stepless speed regulating device used for overload mechanical apparatus - Google Patents
Idle load controllable initiating and stepless speed regulating device used for overload mechanical apparatus Download PDFInfo
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- CN101420196A CN101420196A CNA2007101577016A CN200710157701A CN101420196A CN 101420196 A CN101420196 A CN 101420196A CN A2007101577016 A CNA2007101577016 A CN A2007101577016A CN 200710157701 A CN200710157701 A CN 200710157701A CN 101420196 A CN101420196 A CN 101420196A
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Abstract
The invention discloses an empty-load controllable starting and stepless speed regulation device used for heavy-load mechanical equipment, which can effectively control the stable starting and stable stopping of the heavy-load mechanical equipment. The device comprises an empty-load starting system, a reducing system, a hydro-viscous speed regulation clutch and a brake; wherein, the empty-load starting system consists of a main motor, an auxiliary motor and a normal clutch which is connected with the auxiliary motor; the reducing system consists of a primary gear reducing mechanism and a primary planetary reducing mechanism; the hydro-viscous speed regulation clutch is arranged on the output shaft of the reducing system; the brake is arranged between the coupler of the main motor and the reducing system; the device can greatly reduce the starting current, prolongs the service life of key parts such as reducer, and the like, greatly shortens the impact time of the motor starting current at the same time, and reduces the effects on the motor and the power network; the hydro-viscous speed regulation clutch is arranged outside the reducing system, thus greatly reducing the difficult and expense for equipment maintenance.
Description
Technical field
The present invention relates to machine control unit, especially a kind of idle load controllable initiating and stepless speed-regulating device that is used for heavy loading machinery equipment.
Background technology
The notion of soft start originates from U.S.'s G. C. Marshall Space Flight Center, and it is a kind of brand-new electric motor starting mode that adopts multiple technologies such as power electronic technology, control technology and processor technology comprehensively to form.In soft start-up process, concerning electrical network, wish that the motor start-up electric current is as much as possible little to the impact of electrical network, to reduce influence to other electric equipment.Concerning motor, the attack time that should manage to reduce the starting current of motor and shorten starting current.Concerning drive system and mechanical load, soft Starting Technology should guarantee to act on the startup impact energy minimum on the plant equipment in startup and docking process, thereby prolongs the useful life of critical components such as decelerator.Concerning the user, the process of soft start must be controlled, and soft starting device also should possess multiple function, for example: soft start, soft stop, stepless speed regulation, automatic overload protection and many driving powers balance etc.For heavy loading machinery equipment with large inertia load, motor was to the impact of transmission device and actuator when soft start not only can reduce startup very effectively, prolong the useful life of critical components such as decelerator, can also reduce effectively simultaneously to the thermal shock load of motor and to the influence of electrical network.
" controllable initiating " of plant equipment though be meant plant equipment also can be controllably under the operating mode of heavy duty as requested speed progressively overcome the inertia of whole system and slowly start reposefully.Controllable initiating technology commonly used mainly contains fluid-flywheel clutch, liquid viscous clutch, variable-frequency governor etc.
The way of current techniques comparative maturity is to install variable speed fluid coupling additional between motor and decelerator, reliable, advantages such as mechanism simple, convenient operating maintenance that this class fluid-flywheel clutch has, but there is slippage in this class fluid-flywheel clutch when the ribbon conveyer steady operation, and owing to part power is lost in the existence of slippage, caloric value is big, inefficiency, adjusting speed accuracy is low, security performance is relatively poor, and (poor stability mainly shows when overload, the oil temperature rise, fusible plug melts easily, and the high-temperature oil liquid ejection causes the accident of personnel and machinery equipment to take place).And motor and truly the No Load Start (rotor, shaft coupling and fluid-flywheel clutch are load) of being unrealized, starting current is still bigger.And powerful speed governing hydraulic coupler is bulky.
The more controllable soft start transporting equipment of another kind of use is CST system (Controlled StartTransmission).The oil-shear active force that brake utilization wherein is present between the driving and driven friction plate comes transferring power, makes this device realize stepless speed regulation and the many driving powers balance between the master and slave moving axis within the specific limits.When brake during by soft locking, the overload of any moment or shock loading all will cause skidding between the driving and driven friction plate of brake, and all parts of drive system all will impact or be protected during overload.But still there is certain problem in this device, still very big as starting current, install and maintenance inconvenient, the consumable accessory maintenance difficult is (when damaging as the friction plate of internal system, need equipment integral is opened, the maintenance difficulty height, difficulties such as workload is big, and maintenance time is long), can not be real No Load Start etc.
Frequency conversion No Load Start technology is that the principle of utilizing motor speed to be directly proportional with the frequency of AC power realizes, when the ascending variation of the frequency of AC power, and the also ascending thereupon variation of motor speed.As long as control frequency excursion and time just can make load according to the rate curve smooth starting of setting, thereby realize No Load Start.The unloaded Starting mode of this class has when startup adjusting speed accuracy height, can variable-speed operation, and advantage such as speed adjustable range is big.But motor can not No Load Start, and control is complicated, requires high to ambient temperature and cleannes.In addition, big-power transducer and standby redundancy thereof need dependence on import, cost an arm and a leg the maintenance cost height.
Summary of the invention
The object of the present invention is to provide a kind of idle load controllable initiating and stepless speed-regulating device that is used for heavy loading machinery equipment, control the heavy loading machinery equipment smooth starting effectively, steadily stop, also can eliminate the strong Sasser that occurs in the start-up course.
Idle load controllable initiating and the stepless speed-regulating device that is used for heavy loading machinery equipment provided by the invention comprises No Load Start system, deceleration system, hydro-viscous speed governing clutch and brake.Wherein the No Load Start system is made of a main motor, an auxiliary motor and an ordinary clutch that links with auxiliary motor; Deceleration system is made of primary gear speed reducing mechanism and one-level planetary gear speed reducing mechanism; Hydro-viscous speed governing clutch is arranged on the deceleration system output shaft.Brake then is arranged between main motor coupler and the deceleration system.This device main motor links by the pinion of main motor coupler and brake and deceleration system, the engagement of pinion and gear wheel, and gear wheel is connected by power transmission shaft with sun gear in the planetary gear speed reducing mechanism.Link as the planet carrier of planetary gear speed reducing mechanism output and the active friction plate of hydro-viscous speed governing clutch.Then linking of hydro-viscous speed governing clutch by load shaft coupling and load from movable friction plate.Auxiliary motor links by the pinion of primary gear speed reducing mechanism in clutch and the deceleration system.
Planetary gear reducing mechanism described in this device comprises a sun gear as input block, a ring gear, three planetary gears, the planet carrier as output block, and ring gear is fixed on the casing of deceleration system.The engagement of the ring gear of planetary gear and described planetary gear speed reducing mechanism, but planetary gear rotation and be supported on rotationally on the above-mentioned planet carrier with planet carrier.
This device is characterised in that and adopts bi-motor to start, auxiliary motor is a small power motor, when this device starts, at first start the small-power auxiliary motor (this moment hydro-viscous speed governing clutch active friction plate and be in released state from movable friction plate), make the rotations such as rotor of the active friction plate of deceleration system, hydro-viscous speed governing clutch, main motor coupler and main motor, after the rotating speed of the rotor of main motor reaches the rated speed of main motor, disconnect the auxiliary motor power supply, make the clutch separation of No Load Start system, connect the main motor power supply again.When the main motor energising started, its load (comprising the active friction plate of the rotor of main motor, main motor coupler, deceleration system, hydro-viscous speed governing clutch etc.) had reached rated speed, has really realized the No Load Start of main motor like this.
This device can make load toggle speed and acceleration in accordance with regulations start by the active friction plate of control hydro-viscous speed governing clutch with from the gap between the movable friction plate after main motor starts, and realizes the controllable initiating function; When load variations or manufacturing technique requirent change load running speed, can make load speed operation on request by the active friction plate of control hydro-viscous speed governing clutch with from the gap between the movable friction plate, realize function of stepless speed regulation; When load is drive more, the control system of this device can be monitored the power output of each driving, can adjust the power output that each drives by the active friction plate of control hydro-viscous speed governing clutch with from the gap between the movable friction plate, realize many driving powers equilibrium function; When load need be stopped, the driving and driven friction plate of hydro-viscous speed governing clutch is separated, cut off the main motor power supply, brake work then, make the active friction plate braking earlier of deceleration system and hydro-viscous speed governing clutch, can make load slowly realize soft stop reposefully by the gap between the driving and driven friction plate of control hydro-viscous speed governing clutch again, realize the soft stop function; When load surpasses the main motor rated load; the driving and driven friction plate generation of hydro-viscous speed governing clutch slide relative; the hydro-viscous speed governing clutch active friction plate rotates; the hydro-viscous speed governing clutch that links to each other with load then slack from movable friction plate; thereby motor is carried out overload protection, realize the main motor overload protection function.
This device can significantly reduce starting current, prolongs the useful life of critical components such as decelerator, can also shorten the attack time of motor start-up electric current simultaneously widely, reduces to motor and to the influence of electrical network.Hydro-viscous speed governing clutch on it is arranged on the deceleration system outside, has reduced the difficulty and the expense of plant maintenance widely.
This device can realize that truly especially idle load controllable initiating, soft stop, stepless speed regulation, many driving powers balance of mine mechanism also can prevent electromotor overload to heavy loading machinery equipment.
Description of drawings
Fig. 1 is heavy loading machinery equipment idle load controllable initiating and stepless speed-regulating device schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail:
As shown in Figure 1, heavy loading machinery equipment idle load controllable initiating and stepless speed-regulating device mainly comprise No Load Start system, deceleration system, hydro-viscous speed governing clutch and brake.Wherein the No Load Start system is made of 1 one auxiliary motors 6 of a main motor and a clutch 5 that links with auxiliary motor 6; Deceleration system is made of primary gear speed reducing mechanism and one-level planetary gear speed reducing mechanism 11; Hydro-viscous speed governing clutch 9 is arranged on the deceleration system output shaft.15 on brake is arranged between main motor coupler 2 and the deceleration system.Planetary gear speed reducing mechanism 11 described in this device comprises a sun gear 12 as input block, ring gear, three planetary gears 4, the planet carrier 10 as output block, and ring gear is fixed on the casing of deceleration system.The ring gear engagement of planetary gear 4 and described planetary gear speed reducing mechanism 11, but planetary gear 4 rotations and be supported on rotationally on the above-mentioned planet carrier 10 with planet carrier 10.This device main motor 1 links by the pinion 3 of main motor coupler 2 and brake 15 with deceleration system, pinion 3 and gear wheel 14 engagements, and gear wheel 14 is connected by power transmission shaft 13 with sun gear 12 in the planetary gear speed reducing mechanism 11.Link as the planet carrier 10 of planetary gear speed reducing mechanism 11 outputs and the active friction plate of hydro-viscous speed governing clutch 9.Then linking of hydro-viscous speed governing clutch 9 by load shaft coupling 8 and load 7 from movable friction plate.Auxiliary motor 6 links by the pinion 3 of primary gear speed reducing mechanism in clutch 5 and the deceleration system.
This device adopts bi-motor to start (main motor 1 and auxiliary motor 6), and wherein auxiliary motor 6 is a small power motor.When this device starts, at first start auxiliary motor 6 (this moment hydro-viscous speed governing clutch 9 active friction plate and be in released state from movable friction plate), make the rotations such as rotor of the active friction plate and the main motor 1 of deceleration system, hydro-viscous speed governing clutch 9, after the rotating speed of the rotor of main motor 1 reaches the rated speed of main motor 1, disconnect auxiliary motor 6 power supplys, the clutch 5 of No Load Start system is separated, connect main motor 1 power supply again.Like this when main motor 1 energising starts, its load (comprising rotor, lead spindle 2, the deceleration system of main motor 1, the active friction plate of hydro-viscous speed governing clutch 9) has reached rated speed, has really realized the No Load Start of main motor 1.After main motor 1 starts,, can realize controllable initiating, stepless speed regulation and many driving powers balance of load 7 by the active friction plate of control hydro-viscous speed governing clutch 9 with from the gap between the movable friction plate.
When load 7 needs to stop, at first hydro-viscous speed governing clutch 9 driving and driven friction plates separate, main motor 1 power supply disconnects, brake 15 work then, make the active friction plate braking earlier of deceleration system and hydro-viscous speed governing clutch 9, can make load 7 realize soft stop by the gap between the control hydro-viscous speed governing clutch 9 driving and driven friction plates again.
Claims (3)
1. an idle load controllable initiating and stepless speed-regulating device that is used for heavy loading machinery equipment, it is characterized in that this device comprises No Load Start system, deceleration system, hydro-viscous speed governing clutch and brake, wherein the No Load Start system is made of a main motor, an auxiliary motor and an ordinary clutch that links with auxiliary motor; Deceleration system is made of primary gear speed reducing mechanism and one-level planetary gear speed reducing mechanism; Hydro-viscous speed governing clutch is arranged on the deceleration system output shaft, brake then is arranged between main motor coupler and the deceleration system, main motor links by the pinion of main motor coupler and brake and deceleration system, pinion and gear wheel engagement, gear wheel is connected with sun gear in the planetary gear speed reducing mechanism, link as the planet carrier of planetary gear speed reducing mechanism output and the active friction plate of hydro-viscous speed governing clutch, then linking by load shaft coupling and load from movable friction plate of hydro-viscous speed governing clutch, auxiliary motor links by the pinion of primary gear speed reducing mechanism in clutch and the deceleration system.
2. idle load controllable initiating and the stepless speed-regulating device that is used for heavy loading machinery equipment according to claim 1, it is characterized in that said planetary gear reducing mechanism comprises a sun gear as input block, a ring gear, three planetary gears, the planet carrier as output block, ring gear is fixed on the casing of deceleration system, the engagement of the ring gear of planetary gear and described planetary gear speed reducing mechanism, but planetary gear rotation and be supported on rotationally on the above-mentioned planet carrier with planet carrier.
3. idle load controllable initiating and the stepless speed-regulating device that is used for heavy loading machinery equipment according to claim 1 is characterized in that said hydro-viscous speed governing clutch is arranged on the outside of retarder system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710157701 CN101420196B (en) | 2007-10-26 | 2007-10-26 | Idle load controllable initiating and stepless speed regulating device used for overload mechanical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710157701 CN101420196B (en) | 2007-10-26 | 2007-10-26 | Idle load controllable initiating and stepless speed regulating device used for overload mechanical apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101420196A true CN101420196A (en) | 2009-04-29 |
| CN101420196B CN101420196B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710157701 Expired - Fee Related CN101420196B (en) | 2007-10-26 | 2007-10-26 | Idle load controllable initiating and stepless speed regulating device used for overload mechanical apparatus |
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| CN (1) | CN101420196B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737464A (en) * | 2010-02-10 | 2010-06-16 | 山东科技大学 | Speed reducer having function of stepless speed regulation |
| CN107781334A (en) * | 2016-08-30 | 2018-03-09 | 力博重工科技股份有限公司 | The high-power liquid of novel high speed glues clutch and braking integrated device |
| CN108306455A (en) * | 2018-02-06 | 2018-07-20 | 广东力源工程技术有限公司 | A kind of electric device and its starting method for dragging large inertia load |
| CN109478860A (en) * | 2016-07-15 | 2019-03-15 | 罗伯特·博世有限公司 | The measurement of the operating status of the motor of internal combustion engine is connected to using flywheel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4525655A (en) * | 1979-11-23 | 1985-06-25 | Walker David E | Two stage electric drive |
| CN1057880C (en) * | 1996-10-14 | 2000-10-25 | 杨泰和 | Compound power system and device making use of active electric machine speed control |
| CN2400635Y (en) * | 1999-01-15 | 2000-10-11 | 张以都 | Gearings for soft starting and stepless speed-changing |
| JP3547735B2 (en) * | 2001-11-22 | 2004-07-28 | 本田技研工業株式会社 | Engine system, operating method thereof, and engine starting device |
| CN2833237Y (en) * | 2005-03-28 | 2006-11-01 | 张以都 | Transmission device for controllable starting and stepless speed regulating |
| CN100424381C (en) * | 2006-08-25 | 2008-10-08 | 李本平 | Electromechanical liquid mixed soft start stepless speed regulating drive device |
-
2007
- 2007-10-26 CN CN 200710157701 patent/CN101420196B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737464A (en) * | 2010-02-10 | 2010-06-16 | 山东科技大学 | Speed reducer having function of stepless speed regulation |
| CN109478860A (en) * | 2016-07-15 | 2019-03-15 | 罗伯特·博世有限公司 | The measurement of the operating status of the motor of internal combustion engine is connected to using flywheel |
| CN107781334A (en) * | 2016-08-30 | 2018-03-09 | 力博重工科技股份有限公司 | The high-power liquid of novel high speed glues clutch and braking integrated device |
| CN107781334B (en) * | 2016-08-30 | 2023-08-25 | 力博重工科技股份有限公司 | Novel high-speed high-power hydraulic viscous clutch and brake integrated device |
| CN108306455A (en) * | 2018-02-06 | 2018-07-20 | 广东力源工程技术有限公司 | A kind of electric device and its starting method for dragging large inertia load |
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| Publication number | Publication date |
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| CN101420196B (en) | 2010-07-21 |
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Effective date of registration: 20091211 Address after: No. 185, 1000 mountain road, hi tech Zone, Liaoning, Anshan: 114044 Applicant after: University of Science and Technology Liaoning Co-applicant after: Taiyuan Univ. of Science & Technology Address before: No. 185, 1000 mountain road, hi tech Zone, Liaoning, Anshan: 114044 Applicant before: Liaoning Science and Technology Univ. |
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Granted publication date: 20100721 Termination date: 20171026 |
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