CN218006050U - Support device of energy storage flywheel and energy storage flywheel unit - Google Patents
Support device of energy storage flywheel and energy storage flywheel unit Download PDFInfo
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- CN218006050U CN218006050U CN202222332934.8U CN202222332934U CN218006050U CN 218006050 U CN218006050 U CN 218006050U CN 202222332934 U CN202222332934 U CN 202222332934U CN 218006050 U CN218006050 U CN 218006050U
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Abstract
The utility model discloses a strutting arrangement and energy storage flywheel unit of energy storage flywheel, the strutting arrangement of energy storage flywheel includes: a damper mounting structure having a cavity; the bearing seat is at least partially arranged in the cavity; the flexible damping piece is arranged in the cavity, is positioned in the axial gap and the radial gap between the bearing seat and the damper mounting structure and is used for realizing the buffering effect; the bearing is matched and sleeved with the bearing seat, one of the inner ring and the outer ring of the bearing is clamped on the step surface of the bearing seat, and the other one of the inner ring and the outer ring of the bearing is used for being connected with the flywheel rotor. The utility model provides a strutting arrangement of energy storage flywheel is through forming flexible support between bearing frame and attenuator mounting structure to make the two when producing the motion each other, can realize cushioning effect to the motion, thereby avoid causing the damage to the bearing, avoid simultaneously causing the rising of temperature because of removing, thereby control bearing heat loss, the maintenance cost of the control flywheel energy storage body.
Description
Technical Field
The utility model relates to a flywheel energy storage technical field, more specifically say, relate to a strutting arrangement of energy storage flywheel. Furthermore, the utility model discloses still relate to an energy storage flywheel unit including the strutting arrangement of above-mentioned energy storage flywheel.
Background
The magnetic suspension flywheel energy storage body is characterized in that the flywheel can be in a suspension state and can rotate under the action of the magnetic bearing, the rotation in the state inevitably causes the flywheel to slightly move in the axial direction and the radial direction, the flywheel can further drive the bearing to move when moving, acting force can be generated between the rigid bearing seat and the bearing, and the bearing seat can inhibit the movement of the bearing.
The flywheel rotor system is a key part of a magnetic suspension flywheel energy storage body, and the bearing is used as an important part in the flywheel rotor system, the service life of the bearing directly influences the service life of the system, and the loss of the bearing directly influences the efficiency of the system.
The magnetic bearing is another key component of the flywheel energy storage body, provides upward axial attraction for the flywheel, balances most gravity of the flywheel rotor, enables the flywheel to rotate in a suspension state, but if the magnetic bearing is abnormal, for example, current is increased instantly, the attraction is increased instantly, and when the flywheel rotor is attracted to move upwards, a sufficient mechanical protection mechanism is needed to prevent the flywheel rotor from directly colliding with the magnetic bearing, so as to avoid the damage of the flywheel rotor.
In the existing stage of flywheel energy storage technology, the axial and radial support of a flywheel rotor system adopts rigid support, namely, a bearing is installed in a fixed bearing seat, when a flywheel rotor runs at a high speed in a vacuum environment, under the action of the axial magnetic bearing force, most of the gravity of the rotor is balanced to enable the flywheel to be in a suspension state, the suspension state is in a dynamic and unstable state, under the state, the rigid support structure of the rotor restrains the axial and radial deflection of the rotor with enough rigidity, and the reverse constraint force is finally applied to a mechanical shaft, so that the radial force borne by the mechanical bearing is uneven, the temperature of the bearing is rapidly increased, the heat loss of the bearing is increased, and the lubricating grease of the bearing is rapidly volatilized at a high temperature, thereby the service life of the bearing is reduced, the heat loss of the bearing is increased, the maintenance cost of the flywheel energy storage body is increased, and the efficiency of the flywheel energy storage body is reduced.
In summary, how to reduce the loss of the bearing in the flywheel rotor system is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a strutting arrangement of energy storage flywheel, this structure can reduce the loss degree of bearing, reduces the maintenance cost of the flywheel energy storage body.
Another object of the utility model is to provide an including above-mentioned energy storage flywheel unit.
In order to achieve the above object, the present invention provides the following technical solutions:
a support arrangement for an energy storing flywheel, comprising:
a damper mounting structure having a cavity;
the bearing seat is at least partially arranged in the cavity;
the flexible damping part is arranged in the cavity, is positioned in axial and radial gaps between the bearing seat and the damper mounting structure and is used for realizing a buffering effect;
the bearing, with the bearing frame cooperation cup joints, just one in the inner circle of bearing and the outer lane joint in the step face of bearing frame, the other is used for being connected with the flywheel rotor.
Preferably, the flexible damping member comprises an upper flexible support ring and a lower flexible support ring;
an upper groove is formed in the upper end face of the bearing seat, the upper flexible support ring is arranged in the upper groove, and the upper flexible support ring is abutted against the bottom face of the upper groove and the upper top face of the cavity;
the lower end surface of the bearing seat is provided with a lower groove, the lower flexible support ring is arranged in the lower groove, and the lower flexible support ring is abutted against the bottom surface of the lower groove and the lower bottom surface of the cavity.
Preferably, the upper groove and the lower groove are correspondingly arranged, and the upper flexible support ring and the lower flexible support ring are correspondingly arranged in the axial direction.
Preferably, the flexible damping part comprises a radial flexible support ring, the inner wall of the radial flexible support ring is sleeved on the outer ring of the bearing seat, and the outer wall of the radial flexible support ring is abutted against the annular inner wall of the cavity.
Preferably, two end faces of the radial flexible support ring are respectively abutted with the cavity in the axial direction.
Preferably, the upper top surface and/or the lower top surface of the cavity are/is provided with a step surface, and at least one end surface of the radial flexible support ring is abutted to the corresponding step surface.
Preferably, the damper mounting structure includes:
the damper mounting seat is provided with a uncovered cylindrical shell structure, and the interior of the damper mounting seat is provided with the cavity;
and the damper pressing ring is an annular cover body and buckled at the port of the damper mounting seat to seal and cover the cavity.
Preferably, the end face of the damper mounting seat is provided with a first connecting hole, the damper press ring is provided with a second connecting hole, and the first connecting hole is connected with the second connecting hole through a screw.
Preferably, the flexible damping member is a metal rubber support.
An energy storage flywheel unit comprises a flywheel rotor, wherein the flywheel rotor is provided with at least one supporting device of an energy storage flywheel, and the supporting device of the energy storage flywheel is any one of the supporting devices of the energy storage flywheel.
The utility model provides a strutting arrangement of energy storage flywheel is through forming flexible support between bearing frame and attenuator mounting structure to make the two when producing the motion each other, can realize cushioning effect to the motion, thereby avoid causing the damage to the bearing, avoid simultaneously causing the rising of temperature because of removing, thereby control bearing heat loss, the maintenance cost of the control flywheel energy storage body.
In addition, this application still provides an energy storage flywheel unit including the strutting arrangement of above-mentioned energy storage flywheel, because it has the strutting arrangement of above-mentioned energy storage flywheel, therefore can avoid because of the influence that the removal intensification or collision caused bearing work to the maintenance cost of the control flywheel energy storage body.
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 prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of an upper supporting structure, an upper sealing cover and an upper end cover of a supporting device of an energy storage flywheel provided by the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a front cross-sectional view of FIG. 1;
fig. 4 is a schematic view of the whole of the lower supporting structure, the lower sealing cover and the lower end cover of the supporting device of the energy storage flywheel provided by the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a front cross-sectional view of FIG. 4;
FIG. 7 is a cross-sectional view of the upper support structure;
FIG. 8 is a cross-sectional view of the lower support structure;
fig. 9 is a schematic view of an energy storage flywheel unit provided in the present application.
In fig. 1 to 9, reference numerals include:
10 is an upper supporting structure, and 20 is a lower supporting structure;
the damper mounting structure comprises a damper mounting structure 1, a damper mounting seat 11 and a damper compression ring 12;
2 is a bearing seat;
3 is a flexible damping part, 31 is an upper flexible supporting ring, 32 is a lower flexible supporting ring, and 33 is a radial flexible supporting ring;
4 is a bearing;
101 is an upper sealing cover, 102 is an upper bearing outer seat, 103 is an upper end cover;
a lower sealing cover 201, a lower bearing outer seat 202 and a lower end cover 203;
1000 is an energy storage flywheel unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The core of the utility model is to provide a strutting arrangement of energy storage flywheel, this structure can reduce the loss degree of bearing, reduces the maintenance cost of the flywheel energy storage body.
The other core of the utility model is to provide an including above-mentioned energy storage flywheel unit.
Referring to fig. 1 to 9, fig. 1 is a schematic view of an upper supporting structure, an upper sealing cover and an upper end cover of a supporting device of an energy storage flywheel according to the present invention; fig. 4 is a schematic view of the lower supporting structure, the lower sealing cover and the lower end cover of the supporting device of the energy storage flywheel provided by the present invention. Fig. 9 is a schematic view of an energy storage flywheel unit provided in the present application.
In fig. 1, an upper support structure 10 is mounted on an upper bearing outer seat 102, and is further provided with an upper end cover 103; in fig. 2, an upper seal cover 101 is provided outside an upper bearing outer holder 102, and the upper bearing outer holder 102 and the upper seal cover 101 are fixed to an upper cover 103, respectively.
In fig. 4, the lower support structure 20 is mounted on the lower bearing outer housing 202 and is further provided with a lower end cover 203, in fig. 5, a lower sealing cover 201 is provided outside the lower bearing outer housing 202, and the lower bearing outer housing 102 and the upper sealing cover 101 are respectively fixed on the upper end cover 103.
The application provides a strutting arrangement of energy storage flywheel mainly includes from structural: damper mounting structure 1, bearing frame 2, flexible damping member 3 and bearing 4.
The damper mounting structure 1 is a housing structure having a cavity for mounting the bearing seat 2, the flexible damping member 3, the bearing 4, and the like.
The bearing seat 2 is at least partially arranged in the cavity, particularly the bearing seat 2 is partially or completely arranged in the cavity, and in order to adapt to different arrangement conditions, partial structure of the bearing seat 2 can be allowed to extend out of the cavity from the axial direction.
The flexible damping piece 3 is arranged in the cavity, specifically located in the axial gap and the radial gap between the bearing seat 2 and the damper mounting structure 1, and after the mounting is completed, the flexible damping piece 3 can have at least one side contacting the bearing seat 2 or the damper mounting structure 1 and is used for forming a buffering effect between the bearing seat 2 and the damper mounting structure 1.
It should be noted that the main function of the flexible damping member 3 is to form a support between the bearing seat 2 and the damper mounting structure 1, and compared with the rigid support in the prior art, the flexible damping member 3 in the present application has a flexible characteristic, for example, may be a structure with elasticity, so as to form a buffer effect on the movement of the bearing seat 2 and the damper mounting structure 1 when the two move relatively. The movement may be axial or radial.
The bearing 4 is matched and sleeved with the bearing seat 2, one of the inner ring or the outer ring of the bearing 4 is clamped on the step surface of the bearing seat 2, and the other one is used for being connected with a flywheel rotor. In one embodiment of the present application, an outer ring of the bearing 4 is clamped on a step surface of the bearing seat 2, and an inner ring of the bearing 4 is used for connecting with a flywheel rotor.
Since the supporting device of the energy storage flywheel is applied to the energy storage flywheel unit, it can be a revolving body structure, for example, the above-mentioned flexible damping member 3 can be embodied as a flexible supporting ring, which forms a supporting function of the revolving body structure.
The utility model provides a strutting arrangement of energy storage flywheel is through forming flexible support between bearing frame 2 and attenuator mounting structure 1 to make the two when producing the motion each other, can realize cushioning effect to the motion, thereby avoid causing the damage to the bearing, avoid simultaneously causing the rising of temperature because of removing, thereby control bearing heat loss, the maintenance cost of the control flywheel energy storage body.
On the basis of the above embodiment, the flexible damping member 3 includes the upper flexible supporting ring 31 and the lower flexible supporting ring 32;
referring to fig. 7 and 8, an upper groove is formed on the upper end surface of the bearing seat 2, the upper flexible support ring 31 is disposed in the upper groove, and the upper flexible support ring 31 abuts against the bottom surface of the upper groove and the upper top surface of the cavity;
the lower end surface of the bearing pedestal 2 is provided with a lower groove, the lower flexible support ring 32 is arranged in the lower groove, and the lower flexible support ring 32 is abutted against the bottom surface of the lower groove and the lower bottom surface of the cavity.
On the basis of the above embodiment, the upper groove and the lower groove are correspondingly arranged, and the upper flexible supporting ring 31 and the lower flexible supporting ring 32 are correspondingly arranged in the axial direction. The axial corresponding arrangement can reduce the possibility of offset in the axial direction.
In addition to the flexible support ring arranged in the axial direction for improving stability and increasing damping force, on the basis of the above embodiment, the flexible damping member 3 further includes a radial flexible support ring 33, an inner wall of the radial flexible support ring 33 is sleeved on an outer ring of the bearing seat 2, and an outer wall of the radial flexible support ring 33 is abutted to an annular inner wall of the cavity.
Referring to fig. 7 and 8, the radial flexible support ring 33 is also one of the flexible damping members 3, and is an annular support structure sleeved outside the bearing seat 2 and sleeved on the annular inner wall of the cavity, so as to radially protect, limit and buffer the bearing seat 2.
Further, the radially flexible support ring 33 may provide support in the axial direction in addition to the support in the radial direction, and both end surfaces of the radially flexible support ring 33 may abut against the cavity in the axial direction.
In a particular embodiment, the upper and/or lower top face of the cavity is provided with a step face, at least one end face of the radially flexible support ring 33 abutting against a corresponding step face.
Specifically, the upper top surface and/or the lower top surface are provided with step surfaces, and the step surfaces may be single-stage steps or multi-stage steps, and are used for axially abutting against the radial flexible support ring 33, so as to improve the stability of the bearing 4 and the bearing seat 2.
On the basis of any one of the above embodiments, the damper mounting structure 1 includes: the damper mounting seat 11 and the damper press ring 12 are matched and buckled to form a shell structure with a cavity.
The damper mount 11 has a capless cylindrical housing structure, and includes a cavity therein;
the damper compression ring 12 is an annular cover body and is buckled at the port of the damper mounting seat 11 to seal the cavity.
Optionally, the damper mounting structure 1 may not be a revolving structure, and therefore, the damper mounting seat 11 and the damper compression ring 12 may be corresponding to each other or may be matching parts of other structures, but in order to be able to be arranged in cooperation with the bearing seat 2 and the bearing 4, a fixing structure for placing the bearing seat 2 needs to be arranged inside the damper mounting seat, so as to improve the stability of connection.
Through dividing attenuator mounting structure 1 into different structures and assembly shaping for can install bearing frame 2, bearing 4 in attenuator mount pad 11 earlier, then through with 12 locks of attenuator clamping ring in attenuator mount pad 11, thereby accomplish attenuator mounting structure 1, thereby increase the convenience of the strutting arrangement installation of energy storage flywheel.
In a specific embodiment, the end surface of the damper mounting seat 11 is provided with a first connecting hole, the damper pressing ring 12 is provided with a second connecting hole, and the first connecting hole and the second connecting hole are connected through a screw.
Optionally, the flexible damping member 3 provided in the present application is a metal rubber support. Specifically, the upper flexible support ring 31, the lower flexible support ring 32, and the radial flexible support ring 33 are all metal rubber rings.
The metal rubber is a homogeneous elastic porous substance, which is formed by a certain technological process, a certain mass of metal wires in a stretched and spiral state are orderly arranged in a punching (or rolling) die and then by a cold punching method. Its raw material is metal wire, which has both the inherent characteristics of the selected metal and the elasticity of rubber.
In addition, in the process of design and manufacture, when the rigidity of the upper supporting structure 10 is 1000-3000N/mm and the rigidity of the lower supporting structure 20 is 10000-15000N/mm, the normal operation of the flywheel (the rotating speed of the flywheel is 4000-8800 rpm) cannot be influenced by the resonance point of a translational positive precession mode curve and a constant speed line, and the metal rubber ring for realizing the buffer action in the axial direction and the radial direction can be customized according to the rigidity values, so that the design requirement is met, and the flywheel rotor can run in a balanced and stable state.
In the application, the upper flexible support ring 31, the lower flexible support ring 32 and the radial flexible support ring 33 are arranged in the flywheel rotor subsystem of the magnetic suspension flywheel energy storage body, so that the vibration of the bearing seat can be effectively buffered, the influence on the bearing caused by the vibration of the rotor is reduced, the abrasion effect of the bearing caused by offset motion is reduced, and the magnetic bearing under abnormal conditions can be effectively protected from being damaged.
Except the strutting arrangement of the energy storage flywheel that provides in above-mentioned each embodiment, the utility model discloses still provide an energy storage flywheel unit 1000 including the strutting arrangement of the energy storage flywheel disclosed in above-mentioned embodiment, energy storage flywheel unit 1000 includes the flywheel rotor, and the flywheel rotor is provided with the strutting arrangement of at least one energy storage flywheel, and the strutting arrangement of energy storage flywheel is the strutting arrangement of the energy storage flywheel of above-mentioned arbitrary any one. For example, the two ends of the rotor shaft of the flywheel rotor are respectively connected with an upper support structure 10 and a lower support structure 20, which are both support devices of the energy storage flywheel described above in the present application.
The structure of other parts of the energy storage flywheel unit 1000 is referred to the prior art, and is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above that the utility model provides a strutting arrangement and energy storage flywheel unit of energy storage flywheel have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
Claims (10)
1. A support arrangement for an energy storing flywheel, comprising:
a damper mounting structure having a cavity;
the bearing seat is at least partially arranged in the cavity;
the flexible damping piece is arranged in the cavity, is positioned in an axial gap and a radial gap between the bearing seat and the damper mounting structure and is used for realizing a buffering effect;
the bearing, with the bearing frame cooperation cup joints, just one in the inner circle of bearing and the outer lane joint in the step face of bearing frame, the other is used for being connected with the flywheel rotor.
2. A support arrangement for an energy storing flywheel according to claim 1,
the flexible damping piece comprises an upper flexible supporting ring and a lower flexible supporting ring;
an upper groove is formed in the upper end face of the bearing seat, the upper flexible support ring is arranged in the upper groove, and the upper flexible support ring is abutted against the bottom face of the upper groove and the upper top face of the cavity;
the lower end face of the bearing seat is provided with a lower groove, the lower flexible support ring is arranged in the lower groove, and the lower flexible support ring is abutted against the bottom face of the lower groove and the lower bottom face of the cavity.
3. A support arrangement for an energy storing flywheel as claimed in claim 2 wherein the upper recess corresponds to the lower recess and the upper and lower flexible support rings correspond in axial direction.
4. An energy storage flywheel support device as claimed in any one of claims 1 to 3 wherein the flexible damping member comprises a radially flexible support ring, the inner wall of the radially flexible support ring is sleeved on the outer ring of the bearing seat, and the outer wall of the radially flexible support ring abuts against the annular inner wall of the cavity.
5. A support arrangement for an energy storing flywheel as claimed in claim 4 wherein the two end faces of the radially flexible support ring each axially abut the cavity.
6. A support arrangement for an energy storing flywheel as claimed in claim 5 wherein the upper and/or lower top surface of the cavity is provided with a stepped surface, at least one of said end faces of the radially flexible support ring abutting a corresponding said stepped surface.
7. A support arrangement for an energy storing flywheel as claimed in claim 4, wherein the damper mounting arrangement comprises:
the damper mounting seat is provided with a uncovered cylindrical shell structure, and the interior of the damper mounting seat comprises the cavity;
and the damper pressing ring is an annular cover body and buckled at the port of the damper mounting seat to seal and cover the cavity.
8. The supporting device of an energy storage flywheel of claim 7, wherein the end face of the damper mounting seat is provided with a first connecting hole, the damper press ring is provided with a second connecting hole, and the first connecting hole is connected with the second connecting hole through a screw.
9. A support arrangement for an energy storing flywheel as claimed in claim 4 wherein the flexible damping member is a metal rubber support.
10. An energy storing flywheel unit comprising a flywheel rotor, wherein at least one supporting means for an energy storing flywheel is provided on the flywheel rotor, and the supporting means for an energy storing flywheel is the supporting means for an energy storing flywheel of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222332934.8U CN218006050U (en) | 2022-09-01 | 2022-09-01 | Support device of energy storage flywheel and energy storage flywheel unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222332934.8U CN218006050U (en) | 2022-09-01 | 2022-09-01 | Support device of energy storage flywheel and energy storage flywheel unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218006050U true CN218006050U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222332934.8U Active CN218006050U (en) | 2022-09-01 | 2022-09-01 | Support device of energy storage flywheel and energy storage flywheel unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218006050U (en) |
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2022
- 2022-09-01 CN CN202222332934.8U patent/CN218006050U/en active Active
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