CN214177070U - Heavy-load equipment driving system - Google Patents
Heavy-load equipment driving system Download PDFInfo
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- CN214177070U CN214177070U CN202120107280.1U CN202120107280U CN214177070U CN 214177070 U CN214177070 U CN 214177070U CN 202120107280 U CN202120107280 U CN 202120107280U CN 214177070 U CN214177070 U CN 214177070U
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- 238000004804 winding Methods 0.000 claims abstract description 63
- 238000004146 energy storage Methods 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000005389 magnetism Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims 1
- 230000033228 biological regulation Effects 0.000 description 31
- 238000005096 rolling process Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a heavy load equipment drive technical field, concretely relates to heavy load equipment actuating system. A heavy-duty equipment drive system comprising: the output end of the power source is connected with the energy storage device; winding formula permanent magnetism speed governing clutch, the input with energy memory is connected, and the heavy load equipment is connected to the output, winding formula permanent magnetism speed governing clutch have with the power supply with heavy load equipment power separation, just energy memory is in the first state of energy storage under the effect of power supply, and will the power supply with heavy load equipment joint, with the power supply with energy memory's torque transmission extremely heavy load equipment's second state. The utility model provides an effectively avoid mechanical wear, reduce the heavy load equipment actuating system of the risk that mechanical clutch damaged because of the load is too big.
Description
Technical Field
The utility model relates to a heavy load equipment drive technical field, concretely relates to heavy load equipment actuating system.
Background
Generally, the starting torque of heavy-duty equipment is larger than the running torque, such as a ball mill, a belt conveyor and the like; and the other heavy-load equipment is usually started in a no-load mode, the heavy-load operation is carried out intermittently, and the motor and the power grid generate large instantaneous current impact at the moment of heavy load intervention, such as a rolling mill, a plate shearing machine, a crusher and the like. Under the heavy load condition, the starting current of some heavy load equipment is up to 5-10 times of the rated current of the motor, the electrical parameters and the mechanical parameters of the equipment need to be amplified and selected according to the starting requirements, and the acquisition cost is increased.
Therefore, a flywheel energy storage device and a clutch are added in a transmission system of the heavy-duty equipment, namely a motor, the flywheel energy storage device and a mechanical clutch driving system are adopted, and when the clutch is not combined, the motor drives a flywheel to rotate for storing energy; when the clutch is combined, the energy is released mainly by the flywheel to finish the starting or heavy-load operation, and the motor output is smaller in the whole process. The driving mode obviously reduces the capacity of a matched motor and a control system, the matched motor can be a common asynchronous motor, the current impact of the motor is effectively avoided, and the cost is lower. However, in the above-described motor + flywheel energy storage device + mechanical clutch drive system, mechanical wear inevitably occurs during load operation, and the mechanical clutch is easily damaged when the load is excessively large.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that inevitably produces mechanical wear when the load operation among the prior art, and mechanical clutch damaged easily when the load is too big to provide one kind and effectively avoid mechanical wear, reduce the heavy load equipment actuating system that mechanical clutch damaged because of the load is too big.
In order to solve the technical problem, the utility model provides a heavy load equipment actuating system, include:
the output end of the power source is connected with the energy storage device;
winding formula permanent magnetism speed governing clutch, the input with energy memory is connected, and the heavy load equipment is connected to the output, winding formula permanent magnetism speed governing clutch have with the power supply with heavy load equipment power separation, just energy memory is in the first state of energy storage under the effect of power supply, and will the power supply with heavy load equipment joint, with the power supply with energy memory's torque transmission extremely heavy load equipment's second state.
Optionally, the winding type permanent magnet speed regulation clutch includes a permanent magnet rotor and a winding rotor, the permanent magnet rotor is connected to the energy storage device, and the winding rotor is connected to the heavy-duty device and connected to the controller through a cable.
Optionally, the winding type permanent magnet speed regulation clutch includes a permanent magnet rotor and a winding rotor, the winding rotor is connected to the energy storage device and connected to the controller through a cable, and the permanent magnet rotor is connected to the heavy load device.
Optionally, the energy storage device is a flywheel.
Optionally, the power source is an electric motor.
Optionally, the permanent magnet rotor and the winding rotor adopt a drum structure or a disc structure.
Optionally, the energy storage device and the input end of the wound permanent magnet speed regulation clutch are integrated.
Also provided is a heavy-duty device driving method including the steps of:
controlling the winding type permanent magnet speed regulation clutch to separate the power source from the heavy-load equipment, and simultaneously driving the energy storage device to start in a no-load mode by the power source and reach the rated rotating speed; the wound permanent magnet speed governing clutch is then controlled to engage a power source with a heavy-duty apparatus to transfer torque from the power source and the energy storage device to the heavy-duty apparatus.
Optionally, the current in the wound permanent magnet speed regulation clutch is regulated to accelerate the heavy-duty device to a set rotational speed.
Optionally, the energy output ratio of the power source and the energy storage device is adjusted according to actual working conditions.
Optionally, after a driving cycle is finished, the winding type permanent magnet speed regulation clutch is controlled to enable the power source to be separated from the heavy-load equipment again, the power source drives the energy storage device to rotate until a rated rotation speed is reached, and a next driving cycle is continued.
The utility model discloses technical scheme has following advantage:
the utility model provides a heavy load equipment driving system, when heavy load equipment is in the idle state, control winding formula permanent magnetism speed governing clutch makes power supply and heavy load equipment power separation, and the power supply drives energy memory and rotates the energy storage; when the heavy-load equipment works, the winding type permanent magnet speed regulation clutch is controlled to enable the power source to be connected with the heavy-load equipment, the power source and the energy storage device release energy, and torque is transmitted to the heavy-load equipment. The power source and the energy storage device jointly provide power for the heavy-duty equipment, so that the current impact when the heavy-duty equipment is started can be effectively reduced, the capacities of the power source and the matched control equipment can be greatly reduced, and the equipment purchasing cost is reduced; the power supply is friendly to a power grid, meanwhile, the power supply always keeps stable motion, frequent starting is not needed, and the running cost is saved. In addition, because the winding type permanent magnet speed regulation clutch adopts non-contact transmission, no mechanical abrasion and mechanical action exist, the risk that the existing mechanical clutch is damaged due to overlarge load is overcome, and the operation and maintenance cost is obviously reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a driving system of heavy-duty equipment provided by the present invention;
fig. 2 is the schematic diagram of the driving system of heavy-duty equipment provided by the present invention.
Description of reference numerals:
1. a coupling; 2. a power source; 3. an energy storage device; 4. a winding type permanent magnet speed regulation clutch; 5. a heavy-duty device; 6. a junction box; 7. a permanent magnet rotor; 8. a winding rotor; 9. a rotating shaft; 10. a flat bond; 11. a bearing seat; 12. and a bearing.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The winding type permanent magnet speed regulation clutch as a new speed regulation transmission device is widely applied to the energy-saving speed regulation field of industrial fans and pumps, and the principle is as follows: the winding type permanent magnet speed regulation clutch comprises an equipment body and a controller, wherein two shaft extensions are arranged on the equipment body and respectively comprise a permanent magnet rotor shaft extension and a winding rotor shaft extension. The driving motor drives the permanent magnet rotor to rotate to generate a rotating magnetic field, a winding coil on the winding rotor cuts the rotating magnetic field (or the driving motor drives the winding rotor to rotate to cut the permanent magnet rotor magnetic field) to generate induced electromotive force, when the winding is in a passage, the winding generates induced current, the induced current generates an induced magnetic field, the induced magnetic field of the winding rotor and the permanent magnet rotor magnetic field are coupled with each other, so that the output rotor of the winding type permanent magnet speed regulation clutch rotates along with the rotation to realize power transmission, and a rotation speed difference must exist between the two rotors, namely, the slip. The speed regulation function and the clutch function of the winding type permanent magnet speed regulation clutch can be realized through the controller.
When the winding of the winding type permanent magnet speed regulation clutch 4 is switched on, the winding rotor 8 generates induction current, and then an induction magnetic field is generated, the induction magnetic field is mutually coupled with a rotating magnetic field generated by the permanent magnet rotor 7, torque transmission is realized, the magnitude of the transmission torque can be controlled by changing the magnitude of the current in the winding rotor 8 through the controller, and therefore the functions of speed regulation and soft start of the heavy-load equipment 5 are realized. When the winding is short-circuited or disconnected, the current in the winding rotor 8 is maximum or no current passes through, and the maximum torque transmission or torque non-transmission, namely the on state and the off state, is realized, and the clutch function of the winding type permanent magnet speed regulation clutch 4 is realized. The slip power of the permanent magnet rotor 7 and the winding rotor 8 is fed back to the power grid, so that energy can be saved.
A specific embodiment of the driving system for heavy-duty equipment shown in fig. 1 and 2 includes a power source 2, an energy storage device 3, a winding-type permanent magnetic speed regulation clutch 4 and heavy-duty equipment 5, which are sequentially connected along an axial direction by a coupling 1, wherein an output end of the power source 2 is connected with the energy storage device 3, an input end of the winding-type permanent magnetic speed regulation clutch 4 is connected with the energy storage device 3, and an output end is connected with the heavy-duty equipment 5. The energy storage device 3 in this embodiment is a flywheel, the moment of inertia and the overall dimension of the flywheel can be obtained through calculation under actual conditions, dynamic balance is guaranteed, the heavy-duty equipment 5 is a rolling mill, and the power source 2 can be a common asynchronous motor or a wound-rotor asynchronous motor, or other devices capable of providing driving force.
The winding type permanent magnet speed regulation clutch 4 has a first state in which the power source 2 is power-separated from the heavy load equipment 5 and the energy storage device 3 stores energy under the action of the power source 2, and a second state in which the power source 2 is engaged with the heavy load equipment 5 to transmit the torque of the power source 2 and the energy storage device 3 to the heavy load equipment 5.
In order to facilitate the control of the on-off of the current in the winding type permanent magnet speed regulation clutch 4, the winding type permanent magnet speed regulation clutch 4 is also connected with a controller. The winding type permanent magnet speed regulation clutch 4 comprises a permanent magnet rotor 7 and a winding rotor 8, wherein the permanent magnet rotor 7 and the winding rotor 8 adopt a cylindrical structure. The permanent magnet rotor 7 is connected with the energy storage device 3, and the winding rotor 8 is connected with the heavy-load equipment 5 and is connected with the controller through the junction box 6, the power cable and the control cable.
In order to ensure the connection reliability of the whole system, a rotating shaft 9 is arranged in the center of the flywheel, and the flywheel is connected with the rotating shaft 9 through a flat key 10. The flywheel and the rotating shaft 9 are fixed on a bearing block 11 through a pair of bearings 12, the pair of bearings 12 are respectively arranged on two sides of the flywheel, and the bearings 12 are bearing bushes in the embodiment.
A heavy-duty equipment driving method takes driving a rolling mill as an example, and comprises the following steps:
firstly, the winding rotor 8 of the winding type permanent magnet speed regulation clutch 4 is disconnected, no current passes through the winding rotor, no torque is transmitted, at the moment, the power source 2 is separated from the rolling mill, meanwhile, the power source 2 drives the flywheel to start in a no-load mode, the power source reaches the rated rotating speed, namely, the most economical waiting state is achieved on the premise that the power source 2 does not stop rotating, and the winding rotor can enter a steel rolling state at any time.
The winding rotor 8 of the wound-rotor permanent-magnet speed-regulating clutch 4 is then coupled, while the power source 2 is engaged with the rolling mill, said power source 2 together with the torque of the flywheel being transmitted to the rolling mill. In this process, since the instantaneous impact torque of the load at the time of starting is very large, even if the power source 2 and the flywheel are simultaneously supplied with power, their rotational speeds are slightly decreased. The energy output ratio of the power source 2 and the power grid can be adjusted according to the working condition, the energy output of the flywheel is usually controlled to be larger than that of the power source 2, the fluctuation condition of load impact current of the power source 2 and the power grid is overcome in principle, and the capacity of the power source 2 and matched control equipment is greatly reduced.
The speed regulation function of the winding type permanent magnet speed regulation clutch 4 is utilized, namely, the current in the winding type permanent magnet speed regulation clutch 4 is regulated, and the rolling mill is gradually accelerated to the set rotating speed. In the process, the power source 2 can provide energy independently, and the rotating speeds of the power source 2 and the flywheel are unchanged or rise; it is also possible that the power source 2 is supplied with energy simultaneously with the flywheel, and their rotational speed continues to drop.
After a steel rolling driving period is finished, the winding type permanent magnet speed regulation clutch 4 is controlled to enable the power source 2 and the rolling mill to be separated again, the rolling mill loses power and gradually decelerates until the rolling mill is static, the power source 2 drives the flywheel to rotate until the rated rotating speed is reached, and the next steel rolling driving period is continued.
As an alternative embodiment, the wound-rotor permanent-magnet speed-adjusting clutch 4 includes a permanent-magnet rotor 7 and a winding rotor 8, the winding rotor 8 is connected with the energy storage device 3 and is connected with a controller through a junction box 6, a power cable and a control cable, and the permanent-magnet rotor 7 is connected with the heavy-load equipment 5.
As an alternative embodiment, the energy storage device 3 and the input of the wound permanent magnet speed-control clutch 4 are integrated. Namely, the flywheel-free design, the input rotor of the winding type permanent magnet speed regulation clutch 4 has considerable rotational inertia, and can be used as a flywheel energy storage device.
As an alternative embodiment, the permanent magnet rotor 7 and the winding rotor 8 may also be of a disk type structure.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (7)
1. A heavy-duty equipment drive system, comprising:
the output end of the power source (2) is connected with the energy storage device (3);
winding formula permanent magnetism speed governing clutch (4), the input with energy memory (3) are connected, and heavily loaded equipment (5) is connected to the output, winding formula permanent magnetism speed governing clutch (4) have with power source (2) with heavily loaded equipment (5) power separation, just energy memory (3) are in the first state of energy storage under the effect of power source (2), and will power source (2) with heavily loaded equipment (5) joint, with will power source (2) with the torque transmission of energy memory (3) extremely the second state of heavily loaded equipment (5).
2. The heavy-duty equipment driving system according to claim 1, wherein said wound-rotor permanent-magnet speed-regulating clutch (4) comprises a permanent-magnet rotor (7) and a winding rotor (8), said permanent-magnet rotor (7) being connected with said energy storage device (3), said winding rotor (8) being connected with said heavy-duty equipment (5) and with a controller through a cable.
3. The heavy-duty equipment driving system according to claim 1, wherein said wound-rotor permanent-magnet speed-adjusting clutch (4) comprises a permanent-magnet rotor (7) and a winding rotor (8), said winding rotor (8) is connected with said energy-storage device (3) and with a controller through a cable, said permanent-magnet rotor (7) is connected with said heavy-duty equipment (5).
4. A heavy duty device drive system according to any one of claims 1-3, wherein said energy storage means (3) is a flywheel.
5. A heavy duty device drive system according to any one of claims 1-3, wherein said power source (2) is an electric motor.
6. A heavy duty device drive system according to claim 2 or 3, characterized in that said permanent magnet rotor (7) and winding rotor (8) are of a drum or disc type construction.
7. A heavy load equipment driving system according to any one of claims 1-3, characterized in that the energy storage means (3) and the input of the wound permanent magnet speed governing clutch (4) are one piece.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120107280.1U CN214177070U (en) | 2021-01-14 | 2021-01-14 | Heavy-load equipment driving system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120107280.1U CN214177070U (en) | 2021-01-14 | 2021-01-14 | Heavy-load equipment driving system |
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| CN214177070U true CN214177070U (en) | 2021-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737204A (en) * | 2021-01-14 | 2021-04-30 | 江苏磁谷科技股份有限公司 | Heavy-load equipment driving system |
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- 2021-01-14 CN CN202120107280.1U patent/CN214177070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737204A (en) * | 2021-01-14 | 2021-04-30 | 江苏磁谷科技股份有限公司 | Heavy-load equipment driving system |
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