CN111120573B - Outdoor rescue system based on energy storage flywheel - Google Patents
Outdoor rescue system based on energy storage flywheel Download PDFInfo
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- CN111120573B CN111120573B CN201911367799.7A CN201911367799A CN111120573B CN 111120573 B CN111120573 B CN 111120573B CN 201911367799 A CN201911367799 A CN 201911367799A CN 111120573 B CN111120573 B CN 111120573B
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
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- 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
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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
Abstract
The invention provides a field rescue system based on an energy storage flywheel, which comprises a rescue execution device, a driving motor, a flywheel energy storage device and a power supply device, wherein the driving motor is connected with the flywheel energy storage device; the flywheel energy storage device is configured to store power provided by the power supply device and provide power for the driving motor, and the driving motor is configured to drive the rescue execution device to rescue the fault heavy-load equipment; the flywheel energy storage device comprises an energy storage flywheel, wherein a flywheel body of the energy storage flywheel comprises a plurality of metal discs which are axially stacked and connected and do not have axial through holes, the axial thickness of each metal disc is less than or equal to 40cm, and the radial diameter sizes of adjacent metal discs are different. By the aid of the mode, input power of several kilowatts or dozens of kilowatts is converted into output of several hundred kilowatts or even megawatts, the size of the rescue system is greatly simplified, the weight of the system is reduced, the size, the weight and the energy consumption of the rescue engineering vehicle are greatly reduced, and rescue cost is reduced.
Description
Technical Field
The invention relates to the technical field of rescue devices, in particular to a field rescue system based on an energy storage flywheel.
Background
In order to solve the problem, the field heavy-load equipment is generally provided with a rescue device capable of providing great lifting or traction power and a rescue engineering vehicle for carrying the rescue device. However, the existing rescue devices are large in size, weight and energy consumption, so that rescue engineering vehicles carrying the rescue devices are large in size, weight and energy consumption, the off-road capability of the rescue engineering vehicles is limited, and the rescue cost is greatly increased. When the fault point is in the field, the fault points are not favorable for implementation of rescue activities.
Disclosure of Invention
The invention provides a field rescue system based on an energy storage flywheel, which aims to solve the problems that the volume, the weight and the energy consumption of rescue engineering vehicles carrying the rescue devices are correspondingly large, the off-road capability of the rescue engineering vehicles is limited and the rescue cost is greatly increased due to the fact that the existing rescue devices are large in volume, weight and energy consumption.
In order to solve the technical problem, the invention provides an energy storage flywheel-based field rescue system, which comprises a rescue execution device, a driving motor, a flywheel energy storage device and a power supply device, wherein the rescue execution device comprises a flywheel energy storage device and a flywheel energy storage device; the flywheel energy storage device is configured to store power provided by the power supply device and provide power for the driving motor, and the driving motor is configured to drive the rescue execution device to rescue the fault heavy-load equipment;
the flywheel energy storage device comprises an energy storage flywheel, a flywheel body of the energy storage flywheel comprises a plurality of metal discs which are axially stacked and connected and do not have axial through holes, the axial thickness of each metal disc is smaller than or equal to 40cm, and the radial diameter sizes of adjacent metal discs are different.
As a further improvement of the present invention, the radial diameter dimension of each metal disk is sequentially reduced along the direction from the metal disk located at the intermediate position to the uppermost metal disk, and the radial diameter dimension of each metal disk is sequentially reduced along the direction from the metal disk located at the intermediate position to the lowermost metal disk.
As a further improvement of the invention, an axial bulge is arranged at the axial center position of one surface of each metal disc, an axial groove is arranged at the axial center position of the other surface of each metal disc, and adjacent metal discs are connected with the axial groove of the second metal disc in a matching way through the axial bulge of the first metal disc; the height of the axial protrusion and the depth of the axial groove are both smaller than the axial thickness of the metal disc.
As a further improvement of the present invention, the flywheel energy storage device further comprises a rotating shaft, an upper baffle plate fixedly connected to the upper surface of the flywheel body, and a lower baffle plate fixedly connected to the lower surface of the flywheel body; the rotating shaft comprises an upper rotating shaft fixedly connected to the upper surface of the upper baffle plate and a lower rotating shaft fixedly connected to the lower surface of the lower baffle plate; or the rotating shaft comprises an upper rotating shaft which penetrates through the upper baffle plate and is fixedly connected to the upper surface of the flywheel body, and a lower rotating shaft which penetrates through the lower baffle plate and is fixedly connected to the lower surface of the flywheel body.
As a further improvement of the invention, the upper baffle plate is clamped in the axial groove of the uppermost metal disc, and the upper surface of the lower baffle plate is provided with an axial groove matched with the axial bulge of the lowermost metal disc; or
The lower baffle plate is clamped into the axial groove of the lowermost metal disc, and the lower surface of the upper baffle plate is provided with an axial groove matched with the axial bulge of the uppermost metal disc.
As a further improvement of the present invention, the inner angle of the axial groove and the apex angle of the axial protrusion are rounded.
As a further improvement of the invention, the material of each metal disc is alloy steel or tool steel.
As a further improvement of the invention, the axial thickness of each metal disc is set within the range of 0.2-30 cm.
As a further improvement of the invention, the adjacent metal discs have residual compressive stress in the metal disc with the large radial diameter size and residual tensile stress in the metal disc with the small radial diameter size.
As a further improvement of the invention, the power supply device is any one or a combination of several of a vehicle-mounted energy storage battery, an automobile power battery, an automobile engine or a storage battery.
Compared with the prior art, the field rescue system provided by the invention has the advantages that the flywheel energy storage device and the low-power supply device are adopted, the input power of several kilowatts or dozens of kilowatts is converted into several hundred kilowatts or even megawatt-level short-time high-power output, and a high-power generation device used in the existing rescue system is replaced, so that the volume of the rescue system is greatly simplified, the weight of the system is reduced, the volume, the weight and the energy consumption of a rescue engineering vehicle are greatly reduced, and the rescue cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a field rescue system based on an energy storage flywheel according to an embodiment of the present invention;
fig. 2 is a schematic front view of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention;
FIG. 3 is a schematic view of the assembly of adjacent metal disks in an embodiment of the present invention;
fig. 4 is a schematic front view of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a third front view structure of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention;
fig. 6 is a schematic front view of a fourth energy storage flywheel in a flywheel energy storage device in a field rescue system based on an energy storage flywheel according to an embodiment of the present invention;
fig. 7 is a schematic front view of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a sixth front view structure of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention;
fig. 9 is a schematic front view of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention;
fig. 10 is an eighth front view structural diagram of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to make the description of the present disclosure more complete and complete, the following description is given for illustrative purposes with respect to the embodiments and examples of the present invention; it is not intended to be the only form in which the embodiments of the invention may be practiced or utilized. The embodiments are intended to cover the features of the various embodiments as well as the method steps and sequences for constructing and operating the embodiments. However, other embodiments may be utilized to achieve the same or equivalent functions and step sequences.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a field rescue system based on an energy storage flywheel according to an embodiment of the present invention, as can be seen from fig. 1, the field rescue system 1 includes a rescue execution device 2, a driving motor 3, a flywheel energy storage device 4, and a power supply device 5; the flywheel energy storage device 4 is configured to store power provided by the power supply device 5 and provide power for the driving motor 3, and the driving motor 3 is configured to drive the rescue execution device 2 to rescue the fault heavy-load equipment. Optionally, the rescue performing device 2 provides lifting force or traction force for the fault heavy-load equipment under the driving of the driving motor 3.
Optionally, the power supply device 5 is a low-power generation device, such as any one or a combination of an on-board energy storage battery, an automobile power battery, or an automobile engine. The power supply equipment of the automobile, such as the power supply equipment of the rescue engineering vehicle carrying the rescue system, is directly used, so that extra equipment is not needed, the rescue of the heavy-duty equipment is not limited to a special power generation device and the vehicle, and the size of the rescue system can be simplified. Of course, the power supply device 5 may be an additionally provided battery or a small-sized power generation device.
When rescue is not needed, the power supply device 5 can provide input power of several kilowatts or dozens of kilowatts for the flywheel energy storage device 4 so as to charge the flywheel energy storage device 4. The flywheel energy storage device 4 stores the power provided by the power supply device 5 in a kinetic energy mode, when rescue is needed, the flywheel energy storage device 4 releases the stored kinetic energy, short-time high-power output of hundreds of kilowatts or even megawatts is achieved, the driving motor 3 is driven to do work, and the rescue execution device 2 is driven to rescue fault heavy-load equipment.
The flywheel energy storage device and the low-power supply device are integrated in the rescue system, so that input power of thousands of kilowatts or dozens of kilowatts is converted into short-time high-power output of hundreds of kilowatts or even megawatts, and a high-power generation device used in the conventional rescue system is replaced, so that the volume of the rescue system is greatly simplified, the weight of the system is reduced, the volume, the weight and the energy consumption of a rescue engineering vehicle are greatly reduced, and the rescue cost is reduced.
The flywheel energy storage device 4 comprises an energy storage flywheel for storing the power provided by the power supply device 5 in the form of kinetic energy, and in order to realize short-time high-power output of hundreds of kilowatts or even megawatts, the invention improves the structure of the energy storage flywheel provided in the prior art. Referring to fig. 2, fig. 2 is a schematic front view of an energy storage flywheel in a flywheel energy storage device in a field rescue system based on the energy storage flywheel according to an embodiment of the present invention. The energy storage flywheel 40 includes a flywheel body 41, and an upper baffle 44 and a lower baffle 45 respectively fixed on the upper surface and the lower surface of the flywheel body 41. The flywheel body 41 is formed by axially stacking and connecting a plurality of metal discs 411, and the axial thickness of each metal disc 411 does not exceed 40 cm. Alternatively, the upper baffle 44 and the lower baffle 45 are fixed to the upper surface and the lower surface of the flywheel body 41 by welding or bonding, respectively. The upper baffle 44 and the lower baffle 45 are used for locking the flywheel body 41, so that when the energy storage flywheel 40 rotates at a high speed, the flywheel body 41 can be prevented from moving in the axial direction, and the metal discs 411 can be prevented from being scattered due to partial axial acting force, thereby avoiding safety accidents.
The metal cylindric of flywheel body for the integration manufacturing among traditional energy storage flywheel structure, easy in the manufacturing process at the inside initial crackle that produces of structure, and the integrated structure makes the crackle growth space free, and the growth rate is fast, has not only restricted energy storage flywheel's maximum rotational speed, still leads to the incident to take place owing to the crackle growth easily. The rotation speed directly affects the energy storage capacity of the energy storage flywheel, so that the energy storage capacity is limited. In the invention, the flywheel body 41 is designed to be formed by axially stacking and connecting a plurality of metal discs 411, when an energy storage flywheel fault is caused by a crack (called a crack disc for short) in the metal discs, the crack disc can be supported by one or more adjacent metal discs until the speed of the energy storage flywheel is reduced to be within a safety range, so that the occurrence of safety accidents is avoided. Meanwhile, the axial thickness of the metal disc does not exceed 40cm, the thickness is thin, the size is small, the heat treatment difficulty in the manufacturing process is reduced, the material characteristics of the metal disc are more uniform, cracks are not prone to being generated, the direction of crack growth is limited, the crack growth speed is reduced, the fatigue life of the energy storage flywheel can be prolonged, the maximum rotating speed which can be achieved by the energy storage flywheel can be improved, and the energy storage capacity of the energy storage flywheel is improved.
With continued reference to fig. 2, adjacent metal discs 411 in the flywheel body 41 have different radial diameter dimensions. Through the arrangement mode, the tensile stress generated by the metal disc with the large radial diameter size in the rotating process can be reduced, so that the maximum rotating speed of the energy storage flywheel can be further improved, the energy storage capacity of the energy storage flywheel is improved, more energy can be stored, and the power of hundreds of kilowatts or even megawatts can be output in a short time during rescue. The following explanation takes two adjacent metal disks as an example:
for any metal disc, the radial tensile stress applied to the center of the metal disc during rotation can be represented by the following formula:
in the formula (I), the compound is shown in the specification,
the radial tensile stress is expressed in terms of,
the hoop stress is represented as a function of,
which represents the material density of the metal disc,
representing a poisson's ratio (for most metallic materials, poisson's ratio is 0.3),
indicating the rotational speed, Ro Denotes the outer diameter of the metal disc, RiShowing the outer diameter of the rotating shaft. Assuming that the maximum value of the radial tensile stress generated by the metal disc with smaller radial diameter size in the monomer rotating process is sigmarot1The maximum value of the radial tensile stress generated by the metal disc with the larger radial diameter size in the monomer rotating process is sigmarot2From this formula, σrot1Less than sigmarot2。
As shown in fig. 3, when assembling adjacent metal disks, by using different machining principles, it is possible to make the residual tensile stress (assumed as σ) in the metal disk having a smaller radial diameter sizeres1，σres1>0) So that the residual compressive stress (assumed to be-sigma) in the metal disk having a large radial diameter dimensionres2，σres2>0). One method is to assemble cold and hot metal discs simultaneously by using expansion with heat and contraction with cold. When the assembled adjacent metal disks are rotated, the maximum radial tensile stress generated in the metal disk having a smaller radial diameter dimension becomes σ1=σrot1+σres1And the maximum radial tensile stress generated in the metal disk having a larger radial diameter dimension becomes σ2=σrot2-σres2. Therefore, through design optimization, residual stresses of different types and sizes are assembled for adjacent metal discs, the maximum radial tensile stress generated by the metal discs with larger radial diameter sizes in the rotating process can be reduced, the maximum radial tensile stress generated by the metal discs with smaller radial diameter sizes in the rotating process is not overproof, the stress in the adjacent metal discs is balanced and optimal, the maximum rotating speed of the flywheel can be increased, the energy storage capacity of the energy storage flywheel is improved, more energy is stored, and hundreds of kilowatts and even megawatts can be output in a short time during rescue.
Alternatively, the adjacent metal disks may be arranged in such a manner that the radial diameter dimension of each metal disk is sequentially reduced along the direction from the metal disk located at the middle position to the uppermost metal disk, and the radial diameter dimension of each metal disk is sequentially reduced along the direction from the metal disk located at the middle position to the lowermost metal disk, as shown in fig. 4.
Optionally, each metal disc 411 is free of axial through holes. When the flywheel body rotates at a high speed, if the metal disc is provided with the axial through hole, the hoop stress of the metal disc can be greatly increased, so that the maximum rotating speed of the energy storage flywheel is limited, and the energy storage capacity of the energy storage flywheel is further limited. Therefore, in the present invention, each metal disc 411 has no axial through hole.
When the thickness of the metal disc is small, the difficulty of heat treatment in the manufacturing process can be reduced, because when the thickness of the metal disc is too thick, the central material of the metal disc cannot be rapidly cooled after heat treatment. And because the metal disc can not be rapidly cooled, the mechanical properties of the part of the metal disc close to the central material are greatly reduced, such as hardness, tensile strength and the like, and initial cracks are easily generated. And the radial center of the metal disc is the position of the metal disc subjected to the maximum stress when the metal disc rotates, so that the maximum rotating speed which can be reached by the energy storage flywheel can be limited, and the energy storage capacity of the energy storage flywheel is limited. Preferably, the axial thickness of each metal disc 411 is set within a range of 0.2 to 30cm, more preferably 0.5 to 5.5cm, and the material characteristics of the metal disc are more uniform within the thickness range, initial cracks are less likely to be generated, the crack growth rate can be further reduced, and the fatigue characteristics are excellent. Meanwhile, the material characteristics are more uniform, so that the energy storage capacity of the energy storage flywheel can be ensured.
Optionally, referring to fig. 5 and fig. 6, an axial protrusion 4111 is disposed on an axial center of one surface of the metal disc 411, and an axial groove 4112 is disposed on an axial center of the other surface of the metal disc, when assembled, the adjacent metal discs are connected with the axial groove 4112 of the second metal disc by the axial protrusion 4111 of the first metal disc, and the connection manner can make the connection between the adjacent metal discs firmer. Preferably, the height of the axial protrusion 4111 and the depth of the axial groove 4112 are both much smaller than the axial thickness 411 of the metal disk. As already stated above, the unsuitability of the axial through hole in the metal disc significantly increases the radial and hoop stresses, and therefore the height of the axial protrusion 4111 and the depth of the axial groove 4112 should be sufficiently short relative to the axial thickness of the metal disc. More preferably, the inner corners of the axial grooves and the top corners of the axial protrusions are rounded (as shown in fig. 7) to minimize stress concentration therein when the energy storage flywheel rotates at high speeds. Of course, the axial protrusion 4111 and the axial groove 4112 may also be connected by a screw thread, for example, a screw thread is disposed on the outer circumferential wall of the axial protrusion 4111, and a screw thread matching with the screw thread is disposed on the inner wall of the axial groove 4112.
With continued reference to fig. 5 and 6, the upper baffle 44 has a cross-sectional dimension smaller than the cross-sectional dimension of the axial groove 4112 of the uppermost metal disk 411, so that the upper baffle 44 can be snapped into the axial groove 4112 of the uppermost metal disk. The upper surface of the lower baffle 45 is provided with an axial groove 451, and the cross-sectional dimension of the axial protrusion 4111 of the lowermost metal disc 411 is smaller than the cross-sectional dimension of the axial groove 451 of the lower baffle 45, so that the axial protrusion 4111 of the lowermost metal disc 411 can be snapped into the axial groove 451 of the lower baffle 45. Preferably, the cross-sectional dimension of the upper baffle 44 is controlled to be slightly smaller than the cross-sectional dimension of the axial groove 4112 of the uppermost metal disk 411, so that the upper baffle 44 can be snapped into the axial groove 4112 of the uppermost metal disk. And controlling the cross-sectional dimension of the axial protrusion 4111 of the lowermost metal disc 411 to be slightly smaller than the cross-sectional dimension of the axial groove 451 of the lower baffle 45, so that the axial protrusion 4111 of the lowermost metal disc 411 can be just snapped into the axial groove 451 of the lower baffle 45. Of course, in other embodiments of the present invention, the lower baffle 45 may not have the axial groove 451, and is directly connected to the axial protrusion 4111 of the lowest metal disc, so as to lock the flywheel body 41 together with the upper baffle 44.
Similarly, if the energy storage flywheel structure is as shown in fig. 8 and 9, the corresponding axial groove 441 is disposed on the lower surface of the upper baffle 44, the axial protrusion 4111 of the uppermost metal disk is snapped into the axial groove 441 of the upper baffle 44, and the lower baffle 45 is snapped into the axial groove 4112 of the lowermost metal disk. Of course, the upper baffle 44 may not be provided with the axial groove 441, and is directly connected to the axial protrusion 4111 of the uppermost metal disk, so as to lock the flywheel body 41 together with the lower baffle 45.
As shown in fig. 2, the flywheel 40 further includes an upper rotating shaft 42 fixed to the upper surface of the upper baffle 44 and a lower rotating shaft 43 fixed to the lower surface of the lower baffle 45. Alternatively, the upper rotating shaft 42 and the lower rotating shaft 43 are fixed to the upper surface of the upper baffle 44 and the lower surface of the lower baffle 45 by welding or bonding, respectively.
Alternatively, when the radial diameter of the upper baffle 44 is much smaller than that of the uppermost metal disc, the upper rotating shaft 42 may be arranged to pass through the upper baffle 44 and then be fixed on the upper surface of the flywheel body 41, as shown in fig. 10. This is because, as the radial diameter of the upper baffle 44 is smaller, the more rotational stress can be withstood, and therefore, it is acceptable to provide a through hole for the rotation shaft to pass through in the baffle, without greatly affecting the fatigue characteristics and energy storage capacity of the flywheel. Similarly, when the radial diameter of the lower baffle plate 45 is much smaller than that of the metal disc at the lowest end, the lower shaft 43 may be fixed to the lower surface of the flywheel body 41 after passing through the lower baffle plate 45, as shown in fig. 10. More optionally, the upper rotating shaft 42 and the lower rotating shaft 43 are both provided with threads, and the upper baffle 44 and the lower baffle 45 can be matched with the corresponding threads through bolts, so as to be respectively fixedly connected to the upper surface and the lower surface of the flywheel body 41.
Alternatively, the adjacent metal discs may be fixedly connected by any suitable means in the art, such as by welding or gluing.
Alternatively, the material of each metal disc 411 is alloy steel or tool steel, and alloy steel is more preferable because of its lower material cost and higher hardenability. The hardenability is directly related to the percentage of carbon and other alloying elements such as nickel, and therefore, in the present invention, the mass of nickel in the alloy steel can be controlled to be more than 1% of the total mass of the alloy steel to obtain an alloy steel material with more excellent hardenability. Of course, other suitable steel materials may be used.
In the field rescue system provided by the invention, the flywheel energy storage device 4 can store more than hundreds of kilowatt hours or even more energy due to the energy storage flywheel comprising the structure, so that hundreds of kilowatt hours or even megawatt-level energy can be output in a short time during rescue. And because the volume is small and the weight is light, the volume of the rescue system is greatly simplified, the weight of the system is reduced, the volume, the weight and the energy consumption of the rescue engineering vehicle are greatly reduced, and the rescue cost is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A field rescue system based on an energy storage flywheel is characterized by comprising a rescue execution device, a driving motor, a flywheel energy storage device and a power supply device; the flywheel energy storage device is configured to store power provided by the power supply device and provide power for the driving motor, and the driving motor is configured to drive the rescue execution device to rescue the fault heavy-load equipment;
the flywheel energy storage device comprises an energy storage flywheel, a flywheel body of the energy storage flywheel comprises a plurality of metal discs which are axially stacked and connected and do not have axial through holes, the axial thickness of each metal disc is less than or equal to 40cm, and the radial diameter sizes of adjacent metal discs are different;
the material of each metal disc is alloy steel or tool steel;
residual compressive stress in the metal disc with the large radial diameter size and residual tensile stress in the metal disc with the small radial diameter size in the assembled adjacent metal discs;
maximum radial tensile stress sigma generated in the metal discs of small radial diameter size when the assembled adjacent metal discs are rotated1Is σrot1+σres1Maximum radial tensile stress σ generated in a metal disc of large radial diameter size2Is σrot2-σres2，
Wherein σrot1The maximum value of radial tensile stress, sigma, generated by the metal disc with small radial diameter in the rotation process of the single bodyrot2Maximum value of radial tensile stress, sigma, generated during rotation of the single body by a metal disc with large radial diameter sizeres1Tensile stress, -sigma, residual in a metal disc of small radial diameterres2Residual compressive stress, σ, in metal discs of large radial diameter sizeres1>0，σres2>0。
2. An energy storing flywheel based outdoor rescue system as claimed in claim 1, wherein the radial diameter dimension of each metal disc decreases sequentially along the direction from the metal disc at the middle position to the uppermost metal disc, and the radial diameter dimension of each metal disc decreases sequentially along the direction from the metal disc at the middle position to the lowermost metal disc.
3. An energy-storage flywheel-based outdoor rescue system as claimed in claim 1, wherein an axial protrusion is arranged at an axial center position of one surface of each metal disc, an axial groove is arranged at an axial center position of the other surface of each metal disc, and adjacent metal discs are connected with the axial groove of the second metal disc in a matched manner through the axial protrusion of the first metal disc; the height of the axial protrusion and the depth of the axial groove are both smaller than the axial thickness of the metal disc.
4. The energy storage flywheel-based outdoor rescue system of claim 3, wherein the flywheel energy storage device further comprises a rotating shaft, an upper baffle fixedly connected to the upper surface of the flywheel body, and a lower baffle fixedly connected to the lower surface of the flywheel body; the rotating shaft comprises an upper rotating shaft fixedly connected to the upper surface of the upper baffle plate and a lower rotating shaft fixedly connected to the lower surface of the lower baffle plate; or the rotating shaft comprises an upper rotating shaft which penetrates through the upper baffle plate and is fixedly connected to the upper surface of the flywheel body, and a lower rotating shaft which penetrates through the lower baffle plate and is fixedly connected to the lower surface of the flywheel body.
5. The energy-storage flywheel-based outdoor rescue system according to claim 4, wherein the upper baffle is clamped into the axial groove of the uppermost metal disc, and the upper surface of the lower baffle is provided with an axial groove matched with the axial protrusion of the lowermost metal disc; or
The lower baffle plate is clamped into the axial groove of the metal disc at the lowermost end, and the lower surface of the upper baffle plate is provided with an axial groove matched with the axial bulge of the metal disc at the uppermost end.
6. An energy storing flywheel-based outdoor rescue system according to any of claims 3-5, wherein the inner corners of the axial grooves and the top corners of the axial protrusions are rounded.
7. An energy storage flywheel-based outdoor rescue system according to any one of claims 1 to 5, wherein the axial thickness of each metal disc is set in the range of 0.2-30 cm.
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| US6347925B1 (en) * | 2000-06-29 | 2002-02-19 | Beacon Power Corporation | Flywheel system with parallel pumping arrangement |
| CN100391792C (en) * | 2006-12-14 | 2008-06-04 | 北京航空航天大学 | Two-purpose high speed magnetic suspension pose control and energy storing flywheel energy release control system |
| CN101709765A (en) * | 2009-12-24 | 2010-05-19 | 苏州菲莱特能源科技有限公司 | Steel-structure disk stacked flywheel |
| CN103279054A (en) * | 2013-04-01 | 2013-09-04 | 北京奇峰聚能科技有限公司 | Maglev energy storage flywheel assisted control system |
| CN205419635U (en) * | 2016-02-03 | 2016-08-03 | 山西省煤炭地质115勘查院 | Lifting machine is rescued perpendicularly to mine |
| CN107901021A (en) * | 2017-12-15 | 2018-04-13 | 镇江高等职业技术学校 | A kind of multi-function robot rescued for Article handling and obstacle |
| CN109350882B (en) * | 2018-09-26 | 2020-11-03 | 山东科技大学 | High-rise fire control unmanned aerial vehicle based on flywheel battery |
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2019
- 2019-12-26 CN CN201911367799.7A patent/CN111120573B/en active Active
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