CN220586101U - Flywheel energy storage device - Google Patents

Abstract

The utility model belongs to the technical field of flywheel energy storage, and discloses a flywheel energy storage device. The locking pieces are in threaded connection with the shaft sleeve by arranging the abutting pieces between the outer wall surface of the upper extending column and the inner wall surface of the shaft sleeve, at least two abutting pieces are uniformly distributed along the circumferential direction of the upper extending column at the moment and are arranged in one-to-one correspondence with each other, so that the at least two abutting pieces can abut against the outer circumferential surface of the upper extending column under the action of the locking pieces respectively, and the upper extending column is clamped; through all detachably installs first supporting bearing and end plate in the casing below, and first supporting bearing is located the top of end plate along the direction of height, extends the post on the fixture centre gripping back, takes off the end plate from the casing, alright dismantlement first supporting bearing and maintain or change it, need not to use the hoist to hoist casing and flywheel body in specific place like in the current scheme, and then simplify the flow of dismantling supporting bearing.

Description

Flywheel energy storage device

Technical Field

The utility model relates to the technical field of flywheel energy storage, in particular to a flywheel energy storage device.

Background

The flywheel energy storage technology is an energy storage mode that a motor drives a rotating part to rotate at a high speed, electric energy is converted into kinetic energy of the rotating part, and the rotating part is used for driving a generator to generate electricity when needed, and the flywheel energy storage technology has the advantages of being high in charging and discharging speed, high in energy conversion efficiency, long in service life, safe, environment-friendly and the like, and has excellent application prospects in the fields of electric power frequency modulation, energy storage equipment and the like.

In the existing flywheel energy storage technology, the support bearing is the most easily damaged part of the whole flywheel energy storage device, so that the replacement frequency is highest. In particular, when the support bearing is replaced, it is often necessary to use a machine to hoist the flywheel energy storage device housing and flywheel body to relieve the pressure on the support bearing caused by the weight of the flywheel body in order to detach the support bearing to be replaced. However, since the crane is required to be used when lifting the housing and the flywheel body of the flywheel energy storage device and the operation is required to be performed in a specific place, the process of detaching the support bearing is complicated.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is that in the prior art, a crane is needed when the shell and the flywheel body of the flywheel energy storage device are lifted, and the crane is needed to be operated in a specific place, so that the process of detaching the support bearing is complicated.

To this end, the utility model provides a flywheel energy storage device, including a housing, a rotor member located in the housing, a first support bearing and an end plate detachably mounted below the housing, the rotor member including a body and an upper extension column located above the body along a height direction, the upper extension column being connected with the body, the first support bearing being located above the end plate along the height direction, the upper extension column penetrating through the housing, the flywheel energy storage device further including:

the shaft sleeve is sleeved on one side of the upper extension column outside the shell;

the clamping mechanism comprises abutting pieces and locking pieces, the abutting pieces are positioned between the outer wall surface of the upper extending column and the inner wall surface of the shaft sleeve, at least two abutting pieces are arranged and uniformly distributed along the circumferential direction of the upper extending column, the locking pieces are arranged in one-to-one correspondence with the abutting pieces, and the locking pieces are in threaded connection with the shaft sleeve;

and any abutting piece is in a first motion state which moves towards one side close to the upper extending column under the action of the locking piece until abutting against the outer peripheral surface of the upper extending column.

Optionally, the flywheel energy storage device,

the shaft sleeve is provided with a through hole;

the outer peripheral surface of the shaft sleeve is provided with a first limit convex part;

the clamping mechanism further comprises:

the first guide piece is provided with a guide part and a second limit convex part, one end of the guide part is movably penetrated through the through hole and then connected with the abutting piece, and the second limit convex part is connected with the other end of the guide part;

a biasing member having both ends respectively abutted against the first and second limit protrusions;

wherein any one of the abutment members further has a second movement state in which it moves toward a side away from the upper extension column along the guide of the guide portion under the action of the biasing member.

Optionally, in the flywheel energy storage device, the clamping mechanism further includes:

and the anti-skid piece is arranged on the end face, close to the upper extension column, of the abutting piece.

Optionally, the flywheel energy storage device,

the anti-slip piece and/or the abutting piece is provided with an inward concave arc surface which is arranged in a proper manner with the outer wall surface of the upper extension column.

Optionally, the flywheel energy storage device further includes:

the lifting mechanism comprises a connecting piece and a telescopic piece, wherein the connecting piece is horizontally arranged, one end of the connecting piece is connected with the shaft sleeve, the telescopic piece is provided with a telescopic end and a fixed end, the fixed end is arranged on the shell, and the telescopic end is connected with the other end of the connecting piece.

Optionally, the flywheel energy storage device,

the lifting mechanism further comprises a second guide piece, and the second guide piece penetrates through the connecting piece.

Optionally, the flywheel energy storage device,

the lifting mechanisms are at least two, and the at least two lifting mechanisms are uniformly distributed along the outer wall surface of the shaft sleeve.

Optionally, the flywheel energy storage device further includes:

the support piece is arranged in the shell, is positioned between the lower end face of the rotor piece and the inner wall face of the shell along the height direction, and is provided with a first annular abutting face which corresponds to the first support bearing.

Optionally, the flywheel energy storage device,

the support piece is further provided with a second annular abutting surface, and the radial dimension of the second annular abutting surface is smaller than that of the first annular abutting surface;

the bearing further comprises a second support bearing, wherein the second support bearing is coaxially arranged with the first support bearing, and the outer diameter size of the second support bearing is smaller than the inner diameter size of the first support bearing.

Optionally, the flywheel energy storage device further includes:

and the heat dissipation piece is positioned between the first support bearing and the second support bearing along the radial direction of the first support bearing.

Optionally, the flywheel energy storage device,

the technical scheme provided by the utility model has the following advantages:

the utility model provides a flywheel energy storage device which comprises a shell, a rotor piece, a first support bearing, an end plate, a shaft sleeve and a clamping mechanism, wherein the rotor piece is positioned in the shell, and the first support bearing, the end plate, the shaft sleeve and the clamping mechanism are detachably arranged below the shell. The rotor piece includes the body and is located the upper extension post of body top along the direction of height, upper extension post with body coupling, first support bearing is located the top of end plate along the direction of height, upper extension post wears to locate the casing, flywheel energy memory still includes: the shaft sleeve is sleeved on one side of the upper extension column outside the shell; the clamping mechanism comprises abutting pieces and locking pieces, the locking pieces are positioned outside the shaft sleeve, the abutting pieces are positioned between the outer wall surface of the upper extending column and the inner wall surface of the shaft sleeve, at least two abutting pieces are arranged and uniformly distributed along the circumferential direction of the upper extending column, the locking pieces are arranged in one-to-one correspondence with the abutting pieces, and the locking pieces are in threaded connection with the shaft sleeve; and any abutting piece is in a first motion state which moves towards one side close to the upper extending column under the action of the locking piece until abutting against the outer peripheral surface of the upper extending column.

According to the flywheel energy storage device with the structure, the rotor piece is arranged in the shell, the abutting pieces of the clamping mechanism are arranged between the outer wall surface of the upper extending column and the inner wall surface of the shaft sleeve, the locking pieces are in threaded connection with the shaft sleeve, at the moment, as the abutting pieces are provided with at least two, the at least two abutting pieces are uniformly distributed along the circumferential direction of the upper extending column, and the locking pieces are arranged in one-to-one correspondence with the abutting pieces, so that the at least two abutting pieces can abut against the outer circumferential surface of the upper extending column under the action of the locking pieces respectively, and the upper extending column is clamped; the first support bearing and the end plate are detachably arranged below the shell, the first support bearing is located above the end plate along the height direction, after the end plate is taken down from the shell, if the support bearing needs to be detached, the clamping mechanism is used for clamping the upper extension column, the first support bearing can be directly taken down and maintained or replaced, a crane is not needed to be used for lifting the shell and the flywheel body in a specific place like the prior scheme, and the process of detaching the support bearing is simplified.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a flywheel energy storage device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a clamping mechanism mounted on a shaft sleeve in the flywheel energy storage device according to the embodiment of the utility model;

reference numerals illustrate:

1-a housing; 101-a second supporting ramp; 102-a second interface;

2-rotor members; 21-a body; 22-upper extension column;

31-a first support bearing; 32-a second support bearing; 33-a first sealed bearing; 34-a second sealed bearing;

41-end plates; 42-fastening bolts;

5-shaft sleeve; 501-a first limit protrusion;

61-abutment; 611-abutting the step; 62-locking member; 63-a first guide; 631-a guide; 632-second limit projection; 64-biasing member; 65-anti-slip member;

71-connecting piece; 72-telescoping piece; 721-telescoping end; 722-a fixed end; 73-a second guide;

8-a support; 801-a first annular abutment surface; 802-a second annular abutment surface; 803-a first support ramp; 804-a lower extension column;

91-a heat sink; 911-heat exchange channels; 912-a first interface; 92-photo taking part; 93-identifying the structure; 94-vibration damping member.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

In this embodiment, as shown in fig. 1 and 2, a flywheel energy storage device is provided, which includes a housing 1, a rotor member 2 located in the housing 1, a first support bearing 31 and an end plate 41 detachably mounted below the housing 1, a shaft sleeve 5, and a clamping mechanism. Specifically, the rotor member 2 includes a body 21 and an upper extension column 22 located above the body 21 along the height direction, the upper extension column 22 is connected with the body 21, the first support bearing 31 is located above the end plate 41 along the height direction, so as to realize that the end plate 41 is made into the first support bearing 31, the upper extension column 22 is penetrated through the housing 1, and the shaft sleeve 5 is sleeved on one side of the upper extension column 22 located outside the housing 1; the clamping mechanism comprises abutting pieces 61 and locking pieces 62 positioned outside the shaft sleeve 5, the abutting pieces 61 are positioned between the outer wall surface of the upper extending column 22 and the inner wall surface of the shaft sleeve 5, at least two abutting pieces 61 are arranged, at least two abutting pieces 61 are uniformly distributed along the circumferential direction of the upper extending column 22, the locking pieces 62 are arranged in one-to-one correspondence with the abutting pieces 61, and the locking pieces 62 are in threaded connection with the shaft sleeve 5; wherein, any of the abutting pieces 61 has a first movement state of moving toward the side close to the upper extension column 22 until abutting against the outer peripheral surface of the upper extension column 22 by the lock piece 62.

According to the flywheel energy storage device with the structure, the rotor piece 2 is arranged in the shell 1, the abutting pieces 61 of the clamping mechanism are arranged between the outer wall surface of the upper extension column 22 and the inner wall surface of the shaft sleeve 5, the locking pieces 62 are in threaded connection with the shaft sleeve 5, at this time, at least two abutting pieces 61 are uniformly distributed along the circumferential direction of the upper extension column 22 due to the fact that at least two abutting pieces 61 are arranged, the locking pieces 62 are in one-to-one correspondence with the abutting pieces 61, and therefore the at least two abutting pieces 61 can abut against the outer circumferential surface of the upper extension column 22 under the action of the locking pieces 62 respectively, and clamping of the upper extension column 22 is achieved; the first support bearing 31 and the end plate 41 are detachably mounted below the housing 1, and the first support bearing 31 is located above the end plate 41 along the height direction, after the end plate 41 is removed from the housing 1, if the support bearing needs to be detached, the upper extension column 22 is clamped by the clamping mechanism, so that the first support bearing 31 can be directly removed and maintained or replaced, and the process of lifting the housing 1 and the flywheel body 21 in a specific place by using a crane in the prior art is not needed, thereby simplifying the process of removing the support bearing.

It may be noted that, the flywheel storage device provided in this embodiment further includes a fastening bolt 42, where the fastening bolt 42 is threaded with the housing 1 after penetrating through the end plate 41, so as to detachably connect and fix the end plate 41 with the housing 1.

It may be noted that, in the flywheel energy storage device provided in this embodiment, the abutting member 61 may be provided with the abutting step 611 that the locking member 62 abuts against.

It should be noted that, the flywheel energy storage device provided in this embodiment does not limit the structure of the locking member 62, and it is only necessary to realize that the locking member 62 can move along the radial direction of the shaft sleeve 5 relative to the shaft sleeve 5, and the locking member 62 can abut against the abutting member 61 to drive the abutting member 61 to abut against the outer wall surface of the upper extension column 22 and then fix the locking member.

As one embodiment, the locking member 62 may be selected as a bolt with an external thread structure and a handle portion. At this time, the shaft sleeve 5 is provided with a threaded hole which is matched with the bolt, external force acts on the handle part to drive the handle part to rotate, the external thread structure can gradually approach and abut against the abutting piece 61 in the process of gradually screwing in the threaded hole, after the locking piece 62 abuts against the abutting piece 61, the handle part is continuously driven to rotate, so that the abutting piece 61 gradually approaches the upper extension column 22, and when the abutting piece 61 abuts against the upper extension column 22, the external force stops acting on the handle part; then, all the rotation work of the locking pieces 62 is completed, so that all the abutting pieces 61 abut against the outer wall surface of the upper extension column 22, thereby realizing the clamping of the upper extension column 22.

After the clamping operation of the upper extension column 22 is completed, the abutting piece 61 and the locking piece 62 should be reset in time so as to facilitate the next clamping of the upper extension column 22. Because the locking member 62 is selected to be a bolt, unscrewing can effect the return of the locking member 62. Therefore, in the flywheel energy storage device provided in this embodiment, the member of the reset abutment 61 should be added.

As one of the embodiments, as shown in fig. 1 and 2, in the flywheel energy storage device provided in this embodiment, a through hole is formed in the shaft sleeve 5; the outer peripheral surface of the shaft sleeve 5 is provided with a first limit protrusion 501; the clamping mechanism further comprises a first guide member 63 and a biasing member 64, the first guide member 63 is provided with a guide portion 631 and a second limit protruding portion 632, one end of the guide portion 631 is movably arranged through the through hole in a penetrating mode and then is connected with the abutting member 61, and the second limit protruding portion 632 is connected with the other end of the guide portion 631; both ends of the biasing member 64 abut against the first and second stopper protrusions 501 and 632, respectively; wherein either one of the abutment members 61 further has a second movement state in which it moves toward a side away from the upper extension column 22 along the guide of the guide portion 631 by the biasing member 64.

According to the flywheel energy storage device with the structure, the two ends of the biasing member 64 are respectively abutted against the first limiting convex part 501 and the second limiting convex part 632, so that the first guiding member 63 can be driven to move in the through hole in the process of unscrewing the bolt, and then the abutting member 61 connected with the first guiding member 63 is driven to move, and the abutting member 61 is guided along the first guiding part 631 to be far away from the upper extending column 22.

It should be noted that the flywheel energy storage device provided in this embodiment is not limited to the type of the biasing member 64.

As one embodiment, as shown in fig. 1 and 2, the biasing member 64 is formed of one or more of a spring, a compression spring, and a tension spring.

In the present embodiment, after the bolt is loosened, the abutment member 61 is switched from the first movement state to the second movement state by the biasing member 64; after tightening the bolt, the biasing member 64 is pressed, the abutment member 61 approaches and abuts against the upper extension post 22 under the action of the bolt, and the abutment member 61 can be switched from the second movement state to the first movement state. Thus, the abutment 61 is switched between the first and second movement states.

The flywheel energy storage device provided in this embodiment is not limited to the number of the abutment members 61 and the locking members 62.

As one embodiment, two abutment members 61 and two locking members 62 are provided, and the two abutment members 61 are offset in the circumferential direction of the upper extension column 22 at a flat angle.

Of course, in other alternative embodiments, the number of abutments 61, locks 62 may be three, four, five or more. For example, the angle of circumferential misalignment of three abutments 61 with the upper extension post 22 is 120 °, the angle of circumferential misalignment of four abutments 61 with the upper extension post 22 is 90 °, the angle of circumferential misalignment of five abutments 61 with the upper extension post 22 is 72 °, and the angle of circumferential misalignment of n abutments 61 with the upper extension post 22 is 360/n °.

Also, in the above-described embodiment, the number of the first guides 63 is not limited. In order for the abutment 61 to better grip the upper extension post 22, the number of first guides 63 is an even multiple, such as two, four or more, of the abutment 61.

As one embodiment, the number of the first guides 63 is twice that of the abutting pieces 61, and in any one abutting piece 61, two first guides 63 are respectively disposed on both sides of the locking piece 62 disposed corresponding to the abutting piece 61 in the horizontal direction.

Of course, in other alternative embodiments, the number of the first guiding elements 63 is four times that of the abutting elements 61, and at this time, the first guiding elements 63 are arranged in groups two by two, and are divided into two groups, and the two groups of the first guiding elements 63 are arranged at intervals along the height direction (the vertical direction in fig. 1), so that the abutting elements 61 are abutted against the upper extending column 22 more stably.

In order to make the upper extension column 22 clamped by the plurality of abutting pieces 61 more stable, the phenomenon that the upper extension column 22 slides relative to the clamping piece is avoided in the process that the clamping piece clamps the upper extension column 22 is avoided, as shown in fig. 1 and fig. 2, in the flywheel energy storage device provided by the embodiment, the clamping mechanism further includes an anti-slip piece 65, and the anti-slip piece 65 is mounted on the end surface of the abutting piece 61 close to the upper extension column 22.

In the present embodiment, the anti-slip member 65 and/or the abutment member 61 is provided with a concave circular arc surface provided in conformity with the outer wall surface of the upper extension column 22. That is, one or both of the antiskid member 65 and the abutment member 61 are provided with an inward concave arc surface.

If the rotor member 2 needs to be lifted or lowered, as shown in fig. 1 and fig. 2, the flywheel energy storage device provided in this embodiment further includes a lifting mechanism. The lifting mechanism comprises a connecting piece 71 and a telescopic piece 72, wherein the connecting piece 71 is horizontally arranged, one end of the connecting piece 71 is connected with the shaft sleeve 5, the telescopic piece 72 is provided with a telescopic end 721 and a fixed end 722, the fixed end 722 is mounted on the shell 1, and the telescopic end 721 is connected with the other end of the connecting piece 71.

It should be noted that, in this embodiment, in order to avoid the phenomenon that the shaft sleeve 5 rotates during the process of changing the height of the rotor member 2, the lifting mechanism further includes a second guide member 73, where the second guide member 73 is disposed through the connecting member 71.

It should be noted that, in this embodiment, in order to make the process of changing the height of the rotor member 2 smoother, at least two, that is, two or more, lifting mechanisms are provided, and at least two lifting mechanisms are uniformly arranged along the outer wall surface of the sleeve 5.

As shown in fig. 1 and 2, the flywheel energy storage device provided in this embodiment further includes a support member 8. The support 8 is mounted in the housing 1, and the support 8 is located between the lower end surface of the rotor member 2 and the inner wall surface of the housing 1 in the height direction, the support 8 being provided with a first annular abutment surface 801, the first annular abutment surface 801 being provided in correspondence with the first support bearing 31.

It may be noted that, in the present embodiment, the support 8 is further provided with a second annular abutment surface 802, and the radial dimension of the second annular abutment surface 802 is smaller than the radial dimension of the first annular abutment surface 801; and a second support bearing 32, the second support bearing 32 is coaxially arranged with the first support bearing 31, and the outer diameter size of the second support bearing 32 is smaller than the inner diameter size of the first support bearing 31.

The flywheel energy storage device with the structure can improve the supporting effect by being provided with the first supporting bearing 31 and the second supporting bearing 32, and can prolong the service life of the supporting bearing compared with the single supporting bearing.

It is to be noted that, in the present embodiment, the heat sink 91 is further included, and the heat sink 91 is located between the first support bearing 31 and the second support bearing 32 along the radial direction of the first support bearing 31.

Further, in the flywheel energy storage device provided in this embodiment, the heat exchange channel 911 is provided inside the heat dissipation member 91, the end cover is additionally provided with the first interface 912 communicated with the heat exchange channel 911, and at this time, the heat exchange channel 911 sequentially penetrates through the wall surface below the housing 1 and the end cover.

Specifically, in the present embodiment, the number of the first interfaces 912 is not limited, and may be one or more. Each first interface 912 communicates with a temporary storage element for storing cooling medium from outside, so as to introduce the cooling medium into the heat exchange channel 911 to exchange heat with the first support bearing 31 and the second support bearing 32.

As one embodiment, the number of the first ports 912 is selected to be two, and at this time, the two first ports 912 are disposed corresponding to the heat exchanging channels 911, and when the heat exchanging channels 911 are annular channels, as shown in fig. 1, projections of the two first ports 912 are arranged side by side.

It should be noted that, in the present embodiment, the vibration damper 94 is further included, and at this time, the vibration damper 94 may be disposed between one or more of the outer peripheral surface of the first support bearing 31 and the inner wall surface of the housing 1, between the outer peripheral surface of the first support bearing 31 and the outer wall surface of the heat sink 91, and between the outer peripheral surface of the second support bearing 32 and the outer wall surface of the heat sink 91, so as to avoid the phenomenon that the first support bearing 31 and the second support bearing 32 are offset.

It should be noted that, in the present embodiment, the supporting member 8 is further provided with a first supporting inclined surface 803, and the housing 1 is provided with a second supporting inclined surface 101 correspondingly disposed, and the second supporting inclined surface 101 is used for contacting with the first supporting inclined surface 803.

It should be noted that, in the present embodiment, the support member 8 is further provided with a lower extension column 804, and the lower extension column 804 is connected to the rotation shaft of the external motor after penetrating the housing 1.

As shown in fig. 1 and 2, in the flywheel energy storage device provided in this embodiment, the interior of the housing 1 may be vacuumized by a vacuum pump, so as to reduce the influence of air resistance on the rotor member 2. Therefore, in this embodiment, the housing 1 is further provided with the second port 102, at which time a vacuum valve may be installed at the second port 102, and at which time the vacuum valve is located outside the housing 1, and at which time an output end of the vacuum valve is communicated with an output end of the vacuum pump, and an input end of the vacuum valve is communicated with an inside of the housing 1, so that a vacuum is formed inside the housing 1 under the action of the vacuum pump, so as to reduce friction between the rotor member 2 and air.

It may be noted that, in the flywheel energy storage device provided in this embodiment, the sealing elements, such as sealing bearings, are added at the positions where the upper extension column 22 and the lower extension column 804 penetrate the housing 1, so as to ensure the air tightness inside the housing 1. Therefore, in the present embodiment, as shown in fig. 1 and 2, the first seal bearing 33 and the second seal bearing 34 are further included, where the first seal bearing 33 is disposed near the side of the upper extension post 22 and is disposed inside the housing 1, and the second seal bearing 34 is disposed near the side of the lower extension post 804 and is embedded at the housing 1.

As shown in fig. 1 and 2, the flywheel energy storage device provided in this embodiment further includes a photographing element 92, such as a camera, where the camera is disposed in the housing 1 and is used for photographing the rotor element 2, so as to facilitate an operator to observe the damage condition of the rotor according to the photograph; at this time, the body 21 of the rotor member 2, the upper extension column 22, or the outer circumferential surface of the connection portion between the body 21 and the upper extension column 22 is provided with a marking structure 93, such as a color mark or a coating with scales, after the camera photographs the rotor member 2, the camera observes the marking structure 93 from the obtained photograph to quickly locate the damaged position of the rotor, so that maintenance is required later.

In the flywheel energy storage device with the above structure, when one or more of the first support bearing 31 and the second support bearing 32 are damaged and need to be maintained or replaced, the rotor 2 is firstly enabled to transmit energy to the engine through the lower extension column 804, so that the rotor 2 stops rotating, then the upper extension column 22 is clamped through the clamping mechanism, if the height of the rotor 2 needs to be adjusted, the expansion degree of the expansion piece 72 is adjusted, then the fastening bolt 42 is dismounted to separate the end cover from the shell 1, then the expansion end 721 is contracted, so that the connecting piece 71 drives the rotor 2 to move downwards along the height direction, the first support inclined surface 803 of the support 8 is enabled to be in contact with the second support inclined surface 101 of the shell 1, at this time, the support 8 supports the rotor 2, damage to the anti-skid piece 65 when the upper extension column 22 is lifted for a long time can be avoided, then one or all of the first support bearing 31 and the second support bearing 32 is replaced or maintained, the upper extension column 22 is clamped through the clamping mechanism, the connecting piece 72 is used, the lifting of the rotor 2 is completed, and the connecting piece 71 is used, and the fastening bolt 42 is used to complete the lifting of the rotor 2.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. The utility model provides a flywheel energy storage device, includes casing (1), is located rotor spare (2) and detachably installed in first support bearing (31) and end plate (41) of casing (1) below in casing (1), rotor spare (2) include body (21) and are located upper extension post (22) of body (21) top along the direction of height, upper extension post (22) with body (21) are connected, and first support bearing (31) are located the top of end plate (41) along the direction of height, a serial communication port, upper extension post (22) wears to locate casing (1), flywheel energy storage device still includes:

the shaft sleeve (5) is sleeved on one side of the upper extension column (22) outside the shell (1);

the clamping mechanism comprises abutting pieces (61) and locking pieces (62) positioned outside the shaft sleeve (5), wherein the abutting pieces (61) are positioned between the outer wall surface of the upper extending column (22) and the inner wall surface of the shaft sleeve (5), the number of the abutting pieces (61) is at least two, the at least two abutting pieces (61) are uniformly distributed along the circumferential direction of the upper extending column (22), the locking pieces (62) are in one-to-one correspondence with the abutting pieces (61), and the locking pieces (62) are in threaded connection with the shaft sleeve (5);

wherein, any abutting piece (61) has a first movement state that moves towards the side close to the upper extension column (22) under the action of the locking piece (62) until abutting against the outer peripheral surface of the upper extension column (22).

2. The flywheel energy storage device of claim 1, wherein the flywheel comprises a housing,

the shaft sleeve (5) is provided with a through hole;

the outer peripheral surface of the shaft sleeve (5) is provided with a first limit convex part (501);

the clamping mechanism further comprises:

the first guide piece (63), the first guide piece (63) is provided with a guide part (631) and a second limit convex part (632), one end of the guide part (631) is movably arranged through the through hole and then connected with the abutting piece (61), and the second limit convex part (632) is connected with the other end of the guide part (631);

a biasing member (64), wherein both ends of the biasing member (64) are respectively abutted against the first limit projection (501) and the second limit projection (632);

wherein any one of the abutment members (61) further has a second movement state in which it moves toward a side away from the upper extension column (22) along the guide of the guide portion (631) by the biasing member (64).

3. The flywheel energy storage device of claim 1, wherein the clamping mechanism further comprises:

and the anti-skid piece (65) is arranged on the end surface of the abutting piece (61) close to the upper extension column (22).

4. A flywheel energy storage device as claimed in claim 3, wherein,

the anti-skid member (65) and/or the abutting member (61) is provided with an inward concave arc surface which is adapted to the outer wall surface of the upper extension column (22).

5. The flywheel energy storage device of any of claims 1-4, further comprising:

the lifting mechanism comprises a connecting piece (71) and a telescopic piece (72), wherein the connecting piece (71) is horizontally arranged, one end of the connecting piece (71) is connected with the shaft sleeve (5), the telescopic piece (72) is provided with a telescopic end (721) and a fixed end (722), the fixed end (722) is arranged on the shell (1), and the telescopic end (721) is connected with the other end of the connecting piece (71).

6. The flywheel energy storage device of claim 5, wherein the flywheel comprises a rotor,

the lifting mechanism further comprises a second guide piece (73), and the second guide piece (73) penetrates through the connecting piece (71).

7. The flywheel energy storage device of claim 5, wherein the flywheel comprises a rotor,

the lifting mechanisms are at least two, and the at least two lifting mechanisms are uniformly distributed along the outer wall surface of the shaft sleeve (5).

8. The flywheel energy storage device of any of claims 1-4, further comprising:

support piece (8), support piece (8) install in casing (1) and support piece (8) are located along the direction of height between the lower terminal surface of rotor piece (2) and the interior wall surface of casing (1), support piece (8) are equipped with first annular abutment face (801), first annular abutment face (801) correspond first support bearing (31) setting.

9. The flywheel energy storage device of claim 8, wherein,

the support (8) is further provided with a second annular abutment surface (802), the radial dimension of the second annular abutment surface (802) being smaller than the radial dimension of the first annular abutment surface (801);

the device further comprises a second support bearing (32), wherein the second support bearing (32) is coaxially arranged with the first support bearing (31), and the outer diameter size of the second support bearing (32) is smaller than the inner diameter size of the first support bearing (31).

10. The flywheel energy storage device of claim 9, further comprising:

-a heat sink (91), the heat sink (91) being located between the first support bearing (31) and the second support bearing (32) along a radial direction of the first support bearing (31).