CN111425652B - Flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism - Google Patents

Flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism Download PDF

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Publication number
CN111425652B
CN111425652B CN202010138179.2A CN202010138179A CN111425652B CN 111425652 B CN111425652 B CN 111425652B CN 202010138179 A CN202010138179 A CN 202010138179A CN 111425652 B CN111425652 B CN 111425652B
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China
Prior art keywords
flywheel
motor
energy storage
power
flywheel battery
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CN202010138179.2A
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CN111425652A (en
Inventor
田中山
赖少川
杨昌群
王永飞
赵升吨
牛道东
张晨
刘家骥
钟良
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China Petroleum and Chemical Corp
Xian Jiaotong University
China Oil and Gas Pipeline Network Corp
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China Petroleum and Chemical Corp
Xian Jiaotong University
Sinopec Sales Co Ltd South China Branch
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Priority to CN202010138179.2A priority Critical patent/CN111425652B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/02—Additional mass for increasing inertia, e.g. flywheels
    • H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention discloses a flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cutting-off actuating mechanism, which comprises a power mechanism, a power switching mechanism, a transmission system and an energy storage reset mechanism, wherein the power mechanism is arranged on the flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cutting-off actuating mechanism; the power mechanism drives the transmission system to realize stroke output; the power mechanism comprises an electric drive system and a manual operation system; the power switching mechanism is used for realizing switching between an electric drive system and a manual operation system; the energy storage reset mechanism is used for switching off the electric actuating mechanism when the electric driving system loses power; the energy storage reset mechanism is a flywheel battery energy storage reset mechanism. The invention adopts the flywheel battery as the power-off reset actuator, adopts the permanent magnet axial flux motor with low speed and large torque as the driving motor of the electric actuating mechanism, directly drives the screw nut to act, and integrates the screw nut into the motor, thereby greatly simplifying the transmission structure of the electric actuator, and improving the working efficiency, the response speed and the control precision of the electric actuator.

Description

Flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism
Technical Field
The invention relates to the technical field of electric actuating mechanisms, in particular to a flywheel battery energy storage reset servo direct-drive type straight-stroke quick cut-off actuating mechanism.
Background
With the rapid development of pipeline construction in China, the necessity of realizing the localization of key equipment of oil and gas pipelines is increasingly urgent. The localization of key equipment of the oil and gas pipeline is not only a national requirement, but also a requirement for reducing construction and operation costs of oil and gas transportation enterprises, and the localization of the key equipment of the oil and gas pipeline has important significance for reducing engineering cost, breaking monopoly and price barriers of foreign products, developing national industries and promoting the improvement of equipment levels of the oil and gas pipeline.
In recent years, with the increasing safety requirements in process automation control processes, the safety requirements for large-diameter valves in petroleum and petrochemical systems have become very urgent. The electric actuator is used as a terminal actuating mechanism of the large-caliber valve control system, a power source of the electric actuator is from an electric power system, and when the electric power system is powered off due to accidents or other reasons, the electric actuator cannot adjust the valve to a safety demand position, so that casualties and property loss are caused.
The traditional electric actuator mainly comprises a fixed shell, a motor, a speed reducer output shaft, a nut, a lead screw and a drive control system of the motor. The working principle is as follows: the driving control system controls the motor to move, the motor drives the speed reducer to work, an output shaft of the speed reducer is connected with the lead screw, and the lead screw transmits power to the valve, so that the straight stroke is quickly cut off. However, the conventional electric actuator has the following disadvantages:
(1) the common alternating current motor used by the electric actuator has smaller torque, and a reducer is needed to reduce the speed and increase the torque, so that the electric actuator has a complex structure, larger volume and reduced working efficiency;
(2) because the power source is from the power system, when a power failure accident happens, the electric actuator can not enable the valve to move to a safety demand position, thereby possibly causing casualties and property loss;
(3) the common power-off reset actuators mostly adopt the modes of manual reset, spring reset and battery reset. The manual reset switching mechanism is complex, the failure rate of the switching mechanism is high, the torque required by the manual operation mechanism is large, and the operation is laborious; the spring energy storage reset type electric actuator has a complex structure and high requirements on processing precision, and the spring reset moment impact force is large and the requirements on the strength of a component are high; the working characteristics of the storage battery are sensitive to the environmental temperature, so that the applicable temperature range of the battery energy storage reset type electric actuator is small, the charging and discharging times of the storage battery limit the service life of the electric actuator, and the storage battery can pollute equipment and the environment after being damaged. In some non-power-off occasions such as the motor of the electric actuator breaks down, a manual operation mechanism is needed to control the valve, and if the motor cannot be automatically powered off when the valve is manually switched, certain safety risk exists.
Disclosure of Invention
In order to solve the technical problems, the invention provides a flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism, which adopts a flywheel battery as a power-off reset actuator, adopts a low-speed high-torque permanent magnet axial flux motor as a driving motor of an electric actuating mechanism, directly drives a lead screw nut to act, and integrates the lead screw nut into the motor, thereby greatly simplifying the transmission structure of the electric actuating mechanism and improving the working efficiency, the response speed and the control precision of the electric actuating mechanism.
The technical scheme for solving the problems is as follows: a flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism is characterized in that:
the energy storage and resetting device comprises a power mechanism, a power switching mechanism, a transmission mechanism and an energy storage and resetting mechanism;
the power mechanism drives the transmission mechanism to realize stroke output;
the power mechanism comprises an electric drive system and a manual operation system;
the power switching mechanism is used for realizing switching between an electric drive system and a manual operation system;
the energy storage reset mechanism is used for switching off the electric actuating mechanism when the electric driving system loses power;
the energy storage reset mechanism is a flywheel battery energy storage reset mechanism.
The transmission mechanism is arranged in the shell and comprises a stepped shaft type nut and a lead screw, and the stepped shaft type nut is in threaded connection with the lead screw.
Further, the electric drive system comprises a disc motor, and a power output end of the disc motor is fixedly connected with the stepped shaft type nut.
Further, the manual operating system comprises a hand wheel and a speed reducer;
the speed reducer comprises a planetary gear set, the planetary gear set comprises a sun gear, a planet gear, a gear ring and a planet carrier, a hand wheel is connected with the sun gear, the sun gear is meshed with the planet gear and the gear ring, and the planet carrier is matched with the planet gear.
Further, the power switching mechanism comprises a joint sleeve, a shifting fork and an angle sensor, wherein the joint sleeve is connected with the stepped shaft type nut through a spline, the joint sleeve can slide along the stepped shaft type nut through the spline, the planet carrier can be combined with the joint sleeve through the spline to transmit torque, the shifting fork is connected with the joint sleeve, and the shifting fork penetrates through the angle sensor.
Furthermore, the electromagnetic band-type brake mechanism comprises a friction plate and an electromagnet, and the friction plate is fixedly connected to the stepped shaft type nut.
Furthermore, the flywheel battery energy storage resetting mechanism comprises a flywheel battery shell, a central shaft, a rotor positioning sleeve, a flywheel motor rotor, a flywheel motor stator and a stator positioning sleeve, wherein the flywheel motor stator is fixedly arranged on the central shaft, the stator positioning sleeve is matched with the central shaft to position the flywheel motor stator, the flywheel motor rotor is fixedly connected with the flywheel, and the rotor positioning sleeve is matched with the flywheel to position the flywheel motor rotor;
the rotary transformer rotor positioning device also comprises an upper bearing seat, a lower bearing seat, a rotary transformer rotor, a rotary transformer positioning plate and a rotary transformer stator; the upper bearing seat and the lower bearing seat are fixedly connected with two ends of the flywheel respectively, the rotary transformer rotor is arranged on the upper bearing seat through a rotary transformer rotor positioning plate, the rotary transformer stator is arranged on the upper end cover through a rotary transformer stator positioning plate, and the upper end cover and the lower end cover are fixedly connected through a tensioning bolt.
Further, the device also comprises a disk type motor driving controller and a driving controller of a flywheel battery motor; the disc type motor winding terminal on the disc type motor is connected with the disc type motor driving controller, the disc type motor driving controller is connected with the driving controller of the flywheel battery motor through a cable, and the driving controller of the flywheel battery motor is connected with the flywheel battery motor winding terminal.
Compared with the prior art, the invention has the beneficial effects that:
(1) the permanent magnet axial flux motor with low speed, large torque and high energy density is used as a driving motor of the electric actuator, the screw nut is directly driven to act, and the screw nut is integrated into the motor, so that the transmission structure of the electric actuator is greatly simplified, and the working efficiency, the response speed and the control precision of the electric actuator are improved;
(2) the invention designs a flywheel battery energy storage resetting device, when a power failure accident occurs, a disc type motor of an electric actuating mechanism can not work due to lack of a power source, the electric actuating mechanism can not be reset, at the moment, a direct current bus of a disc type motor driving controller is connected with a direct current bus of a flywheel battery motor driving controller through a cable, a flywheel rotating at a high speed drives a flywheel battery motor to rotate, magnetic flux on a winding changes and generates induced electromotive force at the end part of the winding, kinetic energy of a flywheel battery is converted into required voltage through the driving controller and is output to the disc type motor, electric energy released by the flywheel battery drives the disc type motor to rotate reversely, so that the electric actuating mechanism is reset, a valve is quickly closed, and casualties and property loss are avoided;
(3) the invention designs a clutch mechanism consisting of a shifting fork and a joint sleeve to realize automatic and manual gear control, when the shifting fork is shifted downwards, a ball screw mechanism is only connected with a motor, and at the moment, the ball screw mechanism is electrically controlled; when the shifting fork is pulled upwards, the hand wheel and the planetary reduction mechanism can be connected with the ball screw mechanism, so that manual control is realized; the clutch mechanism is simple and reliable, and the planetary gear speed reducing mechanism greatly reduces the torque required by operating the hand wheel, so that the operation is labor-saving and convenient; an angle sensor is installed to the shift fork of design, and when the shift fork was dialled to the top and is connected hand wheel and planetary reduction mechanism and ball screw mechanism and realize manual control, according to the signal that angle sensor obtained, control system carries out the auto-power-off to motor and band-type brake mechanism to improve electric actuator's safety in utilization.
Drawings
FIG. 1 is a schematic front view of the present invention;
fig. 2 is a schematic cross-sectional structure of the present invention.
The reference numbers in the figures illustrate: the device comprises a hand wheel 1, a first bearing 2, a shell 3, a sun wheel 4, a planet wheel 5, a gear ring 6, a planet carrier 7, a second bearing 8, a stepped shaft type nut 9, a joint sleeve 10, a shifting fork 11, an angle sensor 12, a third bearing 13, a fourth bearing 14, a first rotor 15 of a disc type motor, a second rotor 16 of the disc type motor, a lead screw 17, a stator 18 of the disc type motor, an electromagnetic band-type brake mechanism 19, a friction plate 191, an electromagnet 192, a thrust bearing 20, a flywheel battery shell 21, a lower end cover 22, a lower bearing seat 23, a sixth bearing 24, a central shaft 25, a rotor positioning sleeve 26, a rotor 27 of the flywheel type motor, a flywheel 28, a stator 29, a stator positioning sleeve 30, a fifth bearing 31, an upper bearing seat 32, a rotary transformer rotor 33, a rotary transformer positioning plate 34, a rotary transformer stator 35, an upper end cover 36, a rotary transformer positioning plate 37, a tensioning bolt 38, a terminal 39 of a winding of the disc type motor, A disc motor drive controller 40, a cable 41, a flywheel battery motor drive controller 42, and a flywheel battery motor winding terminal 43.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
As shown in the attached drawings 1 and 2, the flywheel battery energy storage reset servo direct-drive type straight-stroke quick cut-off actuating mechanism comprises a hand wheel 1, wherein the hand wheel 1 is installed on a shell 3 through a first bearing 2, the lower end part of the hand wheel 1 is connected with a sun wheel 4, the sun wheel 4 is meshed with a planet wheel 5 and a gear ring 6, the planet wheel 5 is installed on a planet carrier 7, the gear ring 6 is fixedly connected with the shell 3, and the planet carrier 7 is installed on the shell 3 through a second bearing 8. The lower end of the planet carrier 7 and the outer side of the upper end of the stepped shaft type nut 9 are provided with a joint sleeve 10 in a matching way, the outer side of the joint sleeve 10 is provided with a shifting fork 11 in a matching way, and the shifting fork 11 penetrates through an angle sensor 12 and then is arranged on the shell 3. The stepped shaft type nut 9 is mounted on the shell 3 through a third bearing 13 and a fourth bearing 14, the first rotor 15 of the disc type motor and the second rotor 16 of the disc type motor are fixedly connected with the stepped shaft type nut 9, the stepped shaft type nut 9 and the lead screw 17 form a lead screw nut transmission fit relation, and the lower end of the lead screw 17 and the shell 3 are in fit relation to prevent the lead screw 17 and the shell 3 from forming a mutual rotation relation. The disc motor stator 18 is fixedly mounted on the housing 3 and forms an air gap with the disc motor first rotor 15 and the disc motor second rotor 16. The lower end of the stepped shaft type nut 9 is provided with an electromagnetic band-type brake mechanism 19. The electromagnetic band-type brake mechanism 19 comprises a friction plate 191 and an electromagnet 192, the friction plate 191 is fixedly connected to the stepped shaft type nut 9, and a thrust bearing 20 is arranged between the upper end of the friction plate 191 and the stepped shaft type nut 9. The electromagnet 192 is fixedly connected with the housing 3. The flywheel battery shell 21 is fixedly installed on the shell 3, the flywheel motor stator 29 is fixedly installed on the central shaft 25, the stator positioning sleeve 30 is matched with the central shaft 25 to position the flywheel motor stator 29, the flywheel motor rotor 27 is fixedly connected with the flywheel 28, the rotor positioning sleeve 26 is matched with the flywheel 28 to position the flywheel motor rotor 27, the upper bearing seat 32 is installed on the fifth bearing 31, the lower bearing seat 23 is installed on the sixth bearing 24, the upper bearing seat 32 and the lower bearing seat 23 are fixedly connected with the flywheel 28, the rotary transformer rotor 33 is installed on the upper bearing seat 32 through the rotary transformer rotor positioning plate 34, the rotary transformer stator 35 is installed on the upper end cover 36 through the rotary transformer stator positioning plate 37, and the upper end cover 36 and the lower end cover 22 are fixedly connected through the tensioning bolt 38. The disc motor winding terminal 39 is connected to a disc motor drive controller 40, the disc motor drive controller 40 is connected to a flywheel battery motor drive controller 42 via a cable 41, and the flywheel battery motor drive controller 42 is connected to a flywheel battery motor winding terminal 43.
The working principle of the invention is as follows:
(1) the invention adopts a disc type alternating current servo motor with a middle stator structure to drive a ball screw to realize the specific principle of straight stroke electric execution as follows:
by electrifying the winding of the disc type motor stator 18, the disc type motor first rotor 15 and the disc type motor second rotor 16 synchronously rotate after the winding of the disc type motor stator 18 is electrified, so that the stepped shaft type nut 9 is driven to synchronously rotate. The stepped shaft type nut 9 and the lead screw 17 are in transmission fit and are not self-locked, the lower end of the lead screw 17 is matched with the shell 3, the lead screw 17 and the shell 3 can be prevented from rotating relative to each other, and therefore the stepped shaft type nut 9 can drive the lead screw 17 to move up and down by rotating, and therefore up and down actions can be completed. When the stepped shaft type nut 9 and the lead screw 17 move, the electromagnetic band-type brake mechanism 19 is powered off, and the friction plate 191 is separated from the electromagnet 192; when the disc type motor reaches a preset stroke to stop movement, the electromagnetic band-type brake mechanism 19 is electrified, the friction plate 191 is jointed with the electromagnet 192, the step shaft type nut 9 stops rotating together with the friction plate 191, and therefore the screw 17 is braked.
(2) The invention adopts the specific principle that flywheel battery energy storage reset is adopted to realize rapid turn-off, and the specific principle is as follows:
when the electric actuator works normally, the external power supply also supplies power to the flywheel battery, the flywheel motor driving controller 42 drives the flywheel motor to operate in a motor mode through external electric energy, and the flywheel motor rotor 27 drives the flywheel 28 to rotate at a high speed.
When a power failure accident occurs, the disc type motor of the electric actuator is short of a power source and cannot work, and the electric actuator cannot reset. At this time, the dc bus of the disc motor drive controller 40 is connected to the dc bus of the flywheel battery motor drive controller 42 through the cable 41, the flywheel 28 rotating at high speed drives the flywheel battery motor rotor 27 to rotate, the flywheel motor operates in a generator state, the magnetic flux on the winding changes and generates induced electromotive force at the end of the winding, the flywheel battery motor drive controller 42 converts the kinetic energy of the flywheel battery into required voltage and outputs the voltage to the disc motor drive controller 40, and the electric energy released by the flywheel battery drives the disc motor to rotate reversely, so that the electric actuator is reset, and the valve is closed quickly.
(3) The specific principles of the invention for switching the electric gear and the manual gear and automatically powering off the motor when switching the manual gear are as follows:
when the shifting fork 11 is in a lower position, the joint sleeve 10 is only connected with the step shaft type nut 9 through a spline, the step shaft type nut 9 rotates to drive the screw rod 17 to move up and down, and the gear is controlled by the motor at the moment; when the shifting fork 11 is shifted upwards, the joint sleeve 10 is simultaneously connected with the stepped shaft type nut 9 and the planet carrier 7 through the spline, so that the manual control mode is switched. At the moment, the hand wheel 1 is rotated, the hand wheel 1 drives the sun gear 4 of the planetary gear set to rotate, after the speed is reduced by the planetary gear reducer, the rotation is output by the planet carrier 7, the step shaft type nut 9 is driven to rotate through the joint sleeve 10, and then the up-and-down action of the straight-stroke electric actuator is completed, so that the labor-saving manual control is realized. When the shifting fork 11 is shifted upwards to realize manual control, the shifting fork 11 can rotate by an angle, and the angle sensor 12 arranged on the shifting fork 11 can send an electric signal. According to the signal that angle sensor sent, control system cuts off the power supply to motor and band-type brake mechanism to improve electric actuator's safety in utilization.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by using the contents of the specification and the drawings, or applied directly or indirectly to other related systems, are included in the scope of the present invention.

Claims (3)

1. The utility model provides a flywheel battery energy storage servo direct-drive formula straight stroke cuts off actuating mechanism fast which characterized in that:
the energy storage and resetting device comprises a power mechanism, a power switching mechanism, a transmission mechanism and an energy storage and resetting mechanism;
the power mechanism drives the transmission mechanism to realize stroke output;
the power mechanism comprises an electric drive system and a manual operation system;
the power switching mechanism is used for realizing switching between an electric drive system and a manual operation system;
the energy storage reset mechanism is used for switching off the electric actuating mechanism when the electric driving system loses power;
the energy storage reset mechanism is a flywheel battery energy storage reset mechanism;
the transmission mechanism is arranged in the shell (3) and comprises a step shaft type nut (9) and a lead screw (17), and the step shaft type nut (9) is in threaded connection with the lead screw (17);
the power switching mechanism comprises a joint sleeve (10), a shifting fork (11) and an angle sensor (12), the joint sleeve (10) is connected with a stepped shaft type nut (9) through a spline, the joint sleeve (10) can slide along the stepped shaft type nut (9) through the spline, a planet carrier (7) can be combined with the joint sleeve (10) through the spline to transmit torque,
the shifting fork (11) is connected with the joint sleeve (10), and the shifting fork (11) penetrates through the angle sensor (12);
the electromagnetic band-type brake mechanism (19) comprises a friction plate (191) and an electromagnet (192), wherein the friction plate (191) is fixedly connected to the stepped shaft type nut (9);
the flywheel battery energy storage resetting mechanism comprises a flywheel battery shell (21), a central shaft (25), a rotor positioning sleeve (26), a flywheel motor rotor (27), a flywheel (28), a flywheel motor stator (29) and a stator positioning sleeve (30),
the flywheel motor stator (29) is fixedly arranged on the central shaft (25), the stator positioning sleeve (30) is matched with the central shaft (25) to position the flywheel motor stator (29), the flywheel motor rotor (27) is fixedly connected with the flywheel (28), and the rotor positioning sleeve (26) is matched with the flywheel (28) to position the flywheel motor rotor (27);
the rotary transformer comprises an upper bearing seat (32), a lower bearing seat (23), a rotary transformer rotor (33), a rotary transformer positioning plate (34) and a rotary transformer stator (35); the upper bearing seat (32) and the lower bearing seat (23) are fixedly connected with two ends of a flywheel (28) respectively, a rotary transformer rotor (33) is installed on the upper bearing seat (32) through a rotary transformer rotor positioning plate (34), a rotary transformer stator (35) is installed on an upper end cover (36) through a rotary transformer stator positioning plate (37), and the upper end cover (36) and the lower end cover (22) are fixedly connected through a tension bolt (38);
the device also comprises a disk type motor drive controller (40) and a flywheel battery motor drive controller (42);
a disc type motor winding terminal (39) on the disc type motor is connected with a disc type motor driving controller (40), the disc type motor driving controller (40) is connected with a driving controller (42) of the flywheel battery motor through a cable (41), and the driving controller (42) of the flywheel battery motor is connected with a flywheel battery motor winding terminal (43).
2. The flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism as claimed in claim 1, wherein:
the electric drive system comprises a disc type motor, and a power output end of the disc type motor is fixedly connected with a stepped shaft type nut (9).
3. The flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism as claimed in claim 2, wherein:
the manual operation system comprises a hand wheel (1) and a speed reducer;
the speed reducer comprises a planetary gear set, the planetary gear set comprises a sun wheel (4), a planet wheel (5), a gear ring (6) and a planet carrier (7), a hand wheel (1) is connected with the sun wheel (4), the sun wheel (4) is meshed with the planet wheel (5) and the gear ring (6), and the planet carrier (7) is matched with the planet wheel (5).
CN202010138179.2A 2020-03-03 2020-03-03 Flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism Active CN111425652B (en)

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CN202010138179.2A CN111425652B (en) 2020-03-03 2020-03-03 Flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism

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Application Number Priority Date Filing Date Title
CN202010138179.2A CN111425652B (en) 2020-03-03 2020-03-03 Flywheel battery energy storage reset servo direct-drive type straight-stroke rapid cut-off actuating mechanism

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CN111425652A CN111425652A (en) 2020-07-17
CN111425652B true CN111425652B (en) 2022-05-27

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CN114362432B (en) * 2021-12-08 2023-10-03 中国航发控制系统研究所 Electric-manual dual-mode stepless self-locking direct-drive electric actuator

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US5769390A (en) * 1995-06-22 1998-06-23 Nissan Motor Co., Ltd. Flow control valve
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