Transformer fan and vibration isolation mounting seat structure thereof

Abstract

The application discloses a kind of vibration isolation mounting seat structures for transformer fan, comprising: crossflow fan, crossflow fan includes: shielded motor, rotating part and end shaft, further comprising: the first damping component of the outer periphery of rotating part is sleeved, to prevent rotating part from surge;First damping component includes: two support limit rings fastened in damping installation box shell, at least two guide shafts connected between two support limit rings and wind breaking frame slidingly connected on guide shaft;Wherein: wind breaking frame reciprocates along guide shaft, to continuously cut off the air inlet surface and air outlet surface of crossflow fan in sliding process, so that the gas at air inlet surface and air outlet surface is separated.The application also discloses a kind of transformer fan.The transformer fan and its vibration isolation mounting seat structure of the application can reduce the high-frequency vibration of crossflow fan on transformer fan, reduce the surge phenomenon;Structure is simplified, and it is convenient to disassemble, repair and maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer vibration reduction, in particular to a transformer fan and a vibration isolation mounting seat structure thereof. BACKGROUND

[0002] In the prior art, cross-flow fans are usually used to cool transformers, and when the cross-flow fan works at high speed, it usually generates a large vibration, which not only causes noise, but also easily affects the stable operation of the transformer.

[0003] At the same time, the support leg of the transformer, that is, the base structure installed at the bottom of the fan, has already generated part of the noise when the vibration of the fan is transmitted to the base, although it will not vibrate with the ground at low frequency, but it will still feed back most of the vibration to the transformer, especially when the transformer has a surge phenomenon, the cross-flow fan will vibrate at high frequency, and the noise generated is not conducive to the surrounding environment and the transformer itself. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a transformer fan and a vibration isolation mounting seat structure thereof, which can reduce the high-frequency vibration of the cross-flow fan on the transformer fan and reduce the surge phenomenon; the structure is simple, easy to disassemble, maintain and repair.

[0005] In order to solve the above technical problems, the present application provides a vibration isolation mounting seat structure for a transformer fan, comprising: a vibration reduction mounting box shell for being installed at the bottom of a plurality of windings of a transformer fan and a cross-flow fan installed in the vibration reduction mounting box shell, the cross-flow fan comprising: a shaded pole motor, a rotating part connected with the shaded pole motor, and a terminal rotating shaft connected at the end side of the rotating part, further comprising: a first vibration reduction assembly sleeved on the outer periphery of the rotating part for preventing the rotating part from surging; the first vibration reduction assembly comprises: two support limiting rings fastened in the vibration reduction mounting box shell, at least two guide shafts connected between the two support limiting rings, and a wind breaking frame slidingly connected on the guide shafts; wherein: the wind breaking frame reciprocates along the guide shafts to continuously cut off the air inlet surface and the air outlet surface of the cross-flow fan during sliding, so that the gas at the air inlet surface and the air outlet surface is separated; the wind breaking frame comprises: a wind breaking ring slidably connected on the at least two guide shafts, a buffer gasket installed on the wind breaking ring, and a linear motor connected on the buffer gasket, wherein: the buffer gasket is installed at the position corresponding to the contact between the wind breaking ring and the guide shaft, and the linear motor is clamped on the at least two guide shafts and can reciprocate along the guide shafts; the outer side of the wind breaking ring is provided with a plurality of wind breaking cone heads.

[0006] The guide shaft comprises: a horizontal guide arm for sliding of the linear motor, and a limiting protrusion provided on both sides of the horizontal guide arm, the limiting protrusion being welded with the support limiting ring.

[0007] The second damping assembly sleeved on the rotating shaft of the shield motor comprises: a slewing bearing sleeved on the rotating shaft of the shield motor, an inner fixed ring plate tightly attached to the outer sidewall of the slewing bearing, a damping ring plate tightly attached to the outer side of the inner fixed ring plate, and an outer fixed ring plate tightly attached to the damping ring plate.

[0008] The honeycomb holes on the inner fixed ring plate, the damping ring plate and the outer fixed ring plate are sequentially increased from inside to outside.

[0009] The honeycomb holes on the inner fixed ring plate, the damping ring plate and the outer fixed ring plate are sequentially increased from inside to outside.

[0010] The third damping assembly sleeved on the end rotating shaft comprises: a first guide sleeve tightly attached to the end rotating shaft, a second guide sleeve tightly attached to the outer side of the first guide sleeve, and a third guide sleeve tightly attached to the outer side of the second guide sleeve, wherein the lengths of the first guide sleeve, the second guide sleeve and the third guide sleeve are gradually increased, and the first guide sleeve, the second guide sleeve and the third guide sleeve are respectively provided in a honeycomb hole structure.

[0011] To solve the above technical problems, the application further discloses a transformer fan, which comprises: a supporting leg, a plurality of windings arranged on the supporting leg, and a vibration isolation mounting seat arranged on the bottom of the plurality of windings.

[0012] The transformer fan and the vibration isolation mounting seat structure thereof have the following beneficial effects: the vibration isolation mounting seat structure for the transformer fan comprises: a damping mounting box shell arranged on the bottom of the plurality of windings of the transformer fan, and a cross-flow fan arranged in the damping mounting box shell, the cross-flow fan comprising: a shield motor, a rotating part connected with the shield motor, and an end rotating shaft connected to the end side of the rotating part, further comprising: a first damping assembly sleeved on the outer periphery of the rotating part, used to prevent the rotating part from surging; the first damping assembly comprising: two support limiting rings tightly arranged in the damping mounting box shell, at least two guide shafts connected between the two support limiting rings, and a wind breaking frame slidingly connected to the guide shafts; wherein: the wind breaking frame reciprocates along the guide shafts to continuously cut off the air inlet surface and the air outlet surface of the cross-flow fan during the sliding process, so that the gas at the air inlet surface and the air outlet surface is separated, the structure is simple, and the disassembly, maintenance and repair are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only aim to explain some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0014] Figure 1 It is a perspective structural schematic view of the transformer fan in the embodiment of the present application.

[0015] Figure 2 It is an assembly structural schematic view of the cross-flow fan assembled in the vibration reduction mounting box shell in the embodiment of the present application.

[0016] Figure 3 It is a longitudinal sectional structural schematic view of the first vibration reduction assembly in the embodiment of the present application.

[0017] Figure 4 It is a transverse sectional structural schematic view of the wind breaking frame of the first vibration reduction assembly in the embodiment of the present application.

[0018] Figure 5 It is a transverse sectional structural schematic view of the second vibration reduction assembly in the embodiment of the present application.

[0019] Figure 6 It is a transverse sectional structural schematic view of the third vibration reduction assembly in the embodiment of the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present application.

[0021] As shown in Figures 1-6 , it is the first embodiment of the transformer fan in the present application.

[0022] The transformer fan in the embodiment includes: a support 10, which is a C-shaped steel structure and only plays a supporting role, does not play a vibration reduction role, a plurality of windings 20 installed on the support 10, and a vibration isolation mounting seat installed on the bottom of the plurality of windings 20 and opposite sides.

[0023] The vibration isolation mounting base structure for the transformer fan comprises a damping mounting box shell 30 arranged at the bottom of the windings 20 of the transformer fan and a cross-flow fan 40 arranged in the damping mounting box shell 30, wherein the cross-flow fan 40 comprises a shaded pole motor 41, a rotating part 42 connected with the shaded pole motor 41 and a terminal rotating shaft 43 connected at the end side of the rotating part 42.

[0024] The cross-flow fan 40 used in the embodiment is a heat dissipation device commonly used in transformers, wherein the fluid flows through the fan impeller twice, flows into the fan impeller along the radial direction and then flows out along the radial direction, the inlet and outlet directions are in the same plane, and the discharged gas is uniformly distributed along the width direction of the fan. The first damping component 32, the second damping component 34 and the third damping component 33 of the vibration isolation mounting base structure for the transformer fan are arranged to solve the problems of heat dissipation of the cross-flow fan 40, surge caused by the asymmetry of the airflow and large noise caused by vibration.

[0025] In the implementation, the damping mounting box shell 30 and the cross-flow fan 40 are arranged at the front and rear end sides of the windings 20, the cross-flow fan 40 can timely discharge the heat generated by the windings 20 during operation, and thus the heat dissipation zones are established at the front and rear end sides of the windings. The windings 20 in the embodiment comprise a low-voltage connection structure and a high-voltage connection structure,

[0026] Further, the first damping component 32 is sleeved on the outer periphery of the rotating part 42, which can effectively prevent the rotating part 42 from surging, because the most severe vibration of the transformer fan occurs at the position of the rotating part 42, and the rotating part 42 is also the position where the surging phenomenon occurs.

[0027] The first damping component 32 comprises two support limiting rings 321 fastened in the damping mounting box shell 30, at least two guide shafts 322 connected between the two support limiting rings 321 and a wind breaking frame 323 slidably connected on the guide shafts 322. The wind breaking frame 323 reciprocates along the guide shafts 322 to continuously cut off the air inlet surface and the air outlet surface of the cross-flow fan 40 during the sliding process, so that the gas at the air inlet surface and the air outlet surface is separated.

[0028] Further, the wind breaking frame 323 comprises a wind breaking ring 3231 slidably connected on the at least two guide shafts 322, a buffer gasket 3232 arranged on the wind breaking ring 3231 and a linear motor 3233 connected on the buffer gasket 3232. The buffer gasket 3232 is arranged at the position corresponding to the contact between the wind breaking ring 3231 and the guide shaft 322, and the linear motor 3233 is provided in plurality and correspondingly clamped on the at least two guide shafts 322 and can reciprocate along the guide shafts 322.

[0029] In implementation, the support limiting ring 321 is arranged outside the rotating part 42, the upper and lower ends of the support limiting ring 321 are welded together with the damping mounting box shell 30, and are located on the outer ring surface of the entire rotating part 42, without affecting the normal rotation of the rotating part 42. The guide shaft 322 arranged between the two support limiting rings 321 is a straight strip structure with a certain thickness, which serves to support the wind breaking frame 323 and provide a sliding track for the wind breaking frame 323.

[0030] The large amount of heat generated by the winding 20 of the transformer during operation is sucked in and quickly discharged by the cross-flow fan 40, and as the operation time of the transformer becomes longer, the temperature thereof also becomes higher, causing the working power of the cross-flow fan 40 to become larger, and the cross-flow fan 40 rotates at high speed. When the cross-flow fan 40 rotates at high speed, the wind breaking frame 323 is driven from the external circuit, the wind breaking frame 323 slides along the guide shaft 322, and the wind breaking frame 323 continuously cuts the air inlet surface and the air outlet surface of the cross-flow fan 40 during sliding, so that the gas at the air inlet surface and the air outlet surface is separated, and the gas entering the air inlet surface is relatively uniform, thereby preventing the gas from forming a vortex at the grid of the rotating part 42, and allowing the cross-flow fan 40 to uniformly intake and discharge air, even if a small frequency vibration occurs during operation, it will not have a great impact on the transformer body.

[0031] In the embodiment, the wind breaking frame 323 includes a wind breaking ring 3231 sleeved outside the guide shaft 322, a buffer gasket 3232 connected to the position corresponding to the guide shaft 322, a linear motor 3233 locked on the buffer gasket 3232, the linear motor 3233 clamped on the guide shaft 322 and reciprocating along the guide shaft 322, and the wind breaking ring 3231 is an annular structure matching the shape of the rotating part 42. It can be understood that if the rotating part 42 is a square structure, the corresponding wind breaking ring 3231 can also be a corresponding shape structure, and the change in shape does not affect the movement and wind breaking effect.

[0032] During wind breaking, the wind breaking frame 323 needs external force to intervene to slide, so the operation of the wind breaking frame 323 sliding on the guide shaft 322 needs to be implemented. In implementation, whether it is arranged outside the mounting seat or inside the mounting seat, as long as it can drive the wind breaking frame 323.

[0033] When the linear motor 3233 receives a start signal, it will immediately move along the direction of the guide shaft 322, thereby driving the wind breaking ring 3231 to move on the entire air surface. When the speed of the cross-flow fan 40 increases, the reciprocating speed of the linear motor 3233 can also be increased, thereby improving the wind breaking effect.

[0034] The buffer gasket 3232 has the following functions: in order to avoid the centrifugal collision of the linear motor 3233 with the deformation of the wind breaking ring 3231 during the movement, the buffer gasket 3232 between the wind breaking ring 3231 and the linear motor 3233 can play a certain buffering effect, and at the same time, the buffer gasket 3232 can alleviate the outward pushing effect of the linear motor 3233 by the fan.

[0035] Preferably, the outer side of the wind breaking ring 3231 is provided with a plurality of wind breaking cone heads 3230.

[0036] The function of such arrangement is: during the wind breaking stage, if only the annular wind breaking ring 3231 is used to perform the surface wind breaking action, the wind breaking effect is limited, and even a small wind vortex can be formed on the inlet surface. In order to improve the wind breaking effect, a plurality of wind breaking cone heads 3230 are arranged on the outer side of the wind breaking ring 3231. The wind breaking cone heads 3230 on the wind breaking ring 3231 can damage the inlet surface at any time during the sliding process of the wind breaking ring 3231, so that the wind entering the rotating part 42 can be damaged by the wind breaking cone heads 3230 into a streamline shape, and flow into the rotating part 42 in a linear manner, so that the wind vortex cannot be formed, and the surge phenomenon cannot be formed. Even if the wind cannot be damaged into a streamline shape, the local wind aggregation phenomenon can be greatly damaged, and the inlet surface can be more uniform.

[0037] Preferably, the plurality of linear motors 3233 on the guide shaft 322 are connected together by a pull ring 3234.

[0038] The function of such arrangement is: when the linear motor 3233 moves, since there is not only one linear motor 3233, but also two or three or four linear motors 3233, different linear motors 3233 may have a lag phenomenon during the movement, so that the moving force received by the wind breaking ring 3231 is uneven, and partial deformation occurs, and in severe cases, the normal rotation of the rotating part 42 can be interfered. The linear motors 3233 at different positions are connected together by the pull ring 3234. Even if one or two linear motors 3233 have a slight lag phenomenon, they can be driven by other linear motors 3233, so that all the linear motors 3233 can move synchronously, and the wind breaking ring 3231 can move uniformly on the guide shaft 322 in a vertical straight line.

[0039] Preferably, the guide shaft 322 comprises: a horizontal guide arm 3221 for sliding of the linear motor 3233, and a limiting protrusion 3222 arranged on both sides of the horizontal guide arm 3221, and the limiting protrusion 3222 is welded with the support limiting ring 321.

[0040] The effect of the arrangement is that, since the linear motor 3233 moves on the guide shaft 322, the arrangement height of the limiting protrusion 3222 is higher than the horizontal guide arm 3221, when the linear motor 3233 runs on the horizontal guide arm 3221, the limiting protrusion 3222 at both sides will be blocked and cannot slide out of the horizontal guide arm 3221, and in the trial operation stage, the time required for the linear motor 3233 to run on the horizontal guide arm 3221 can be tested, and the direction of the linear motor 3233 movement is adjusted by the change, to automatically complete the reciprocating motion process.

[0041] Further, since the positions of the shield motor 41 and the end shaft 43 at both ends of the rotating part 42, i.e. the first end and the end of the rotating shaft of the rotating part 42, are also positions prone to vibration. The embodiment provides the following solution.

[0042] The second damping assembly 34 is sleeved on the rotating shaft of the shield motor 41, and the second damping assembly 34 comprises: a rotary bearing 341 sleeved on the rotating shaft of the shield motor 41, an inner fixed ring piece 342 tightly attached to the outer side wall of the rotary bearing 341, a damping ring piece 343 tightly attached to the outer side of the inner fixed ring piece 342, and an outer fixed ring piece 344 tightly attached to the damping ring piece 343, wherein: the inner fixed ring piece 342, the damping ring piece 343, and the outer fixed ring piece 344 are all provided with a honeycomb hole structure.

[0043] The effect of the arrangement is that, if a traditional solid structure is used, it will only vibrate together with the rotary bearing 341, so in this embodiment, the inner fixed ring piece 342, the damping ring piece 343, and the outer fixed ring piece 344 are all provided with a honeycomb structure, and the unloading effect is better than that of a solid structure.

[0044] Preferably, the honeycomb holes on the inner fixed ring piece 342, the damping ring piece 343, and the outer fixed ring piece 344 increase in size from the inside to the outside.

[0045] Preferably, the honeycomb holes on the inner fixed ring piece 342 are arranged towards the rotary bearing 341, and the honeycomb holes on the damping ring piece 343 are arranged towards the side of the inner fixed ring piece 342.

[0046] The effect of the arrangement is that, due to the use of a honeycomb structure, the fixing strength of part of the mounting seat is reduced, and the fixing force on the rotary bearing 341 may be insufficient, so the honeycomb holes on the inner fixed ring piece 342, the damping ring piece 343, and the outer fixed ring piece 344 are arranged to increase in size from the inside to the outside, the honeycomb holes on the honeycomb plate closest to the inner fixed ring piece 342 have the smallest size, the strength of the inner fixed ring piece 342 is higher, and the honeycomb holes on the damping ring piece 343 and the outer fixed ring piece 344 increase in size, thereby maximizing the damping effect while ensuring the strength at the center.

[0047] In the implementation of the vibration reduction, the fitting area with the vibration surface directly determines the effect of the vibration reduction, for this, the honeycomb holes of the inner fixing ring piece 342 are towards the slewing bearing 341, the honeycomb holes of the vibration reduction ring piece 343 are towards the side of the inner fixing ring piece 342, so that the inner fixing ring piece 342 is in contact with the slewing bearing 341 in a large area, and the vibration reduction ring piece 343 is the same, and is in contact with the inner fixing ring piece 342 in a large area, and the vibration reduction is layer by layer.

[0048] The third vibration reduction assembly 33 is sleeved on the end rotating shaft 43, and the third vibration reduction assembly 33 comprises: a first guide sleeve 331 closely attached to the end rotating shaft 43, a second guide sleeve 332 closely attached to the outside of the first guide sleeve 331, and a third guide sleeve 333 closely attached to the outside of the second guide sleeve 332, wherein: the lengths of the first guide sleeve 331, the second guide sleeve 332 and the third guide sleeve 333 gradually increase, and the first guide sleeve 331, the second guide sleeve 332 and the third guide sleeve 333 are respectively provided in a honeycomb hole structure.

[0049] In the implementation, through the form of layer-by-layer vibration reduction of multiple groups of guide seats, the closer to the position of the shield motor 41, the smaller the honeycomb opening of the guide seat, and the vibration reduction effect is ensured at the position of the front section of the output shaft end, and the vibration reduction effect is also ensured at the most distal end of the output shaft. However, the most distal end of the output shaft also needs to be covered with a vibration reduction structure, the lengths of the first guide sleeve 331, the second guide sleeve 332 and the third guide sleeve 333 gradually increase, and the most distal end of the third guide sleeve 333 covers the most distal end of the output shaft.

[0050] The transformer fan and the vibration isolation mounting seat structure thereof according to the present application have the following beneficial effects:

[0051] Firstly, the first vibration reduction assembly comprises: two support limiting rings fastened in the vibration reduction mounting box shell, at least two guide shafts connected between the two support limiting rings, and a wind breaking frame slidingly connected to the guide shafts. The wind breaking frame reciprocates along the guide shafts to continuously cut off the air inlet surface and the air outlet surface of the cross-flow fan during the sliding process, so that the gas at the air inlet surface and the air outlet surface is separated. By arranging the first vibration reduction assembly, the surge of the rotating part can be effectively prevented.

[0052] Secondly, the second vibration reduction assembly is arranged at the position of the shield motor, and the third vibration reduction assembly is arranged at the position of the end rotating shaft, so as to effectively reduce the vibration of the two end parts of the rotating part and implement targeted vibration reduction for each position of the cross-flow fan.

[0053] Thirdly, the structure is simple, convenient to disassemble and assemble, and easy to maintain.

Claims

1. A vibration isolation mounting structure for a transformer fan, comprising: The utility model provides a kind of vibration damping mounting box shell to be installed in the bottom of several windings of transformer fan and transverse flow fan installed in the vibration damping mounting box shell, the transverse flow fan includes: a squirrel cage motor, the rotating part connected with the squirrel cage motor and the end rotating shaft connected in the end side of the rotating part, it is characterized by, Further comprising: a first damping assembly sleeved on the outer periphery of the rotating part to prevent the rotating part from surging; The first damping assembly includes: two support limit rings fastened in the vibration damping mounting box shell, at least two guide shafts connected between the two support limit rings and a wind breaking frame slidingly connected to the guide shafts;Wherein: The wind breaking frame reciprocates along the guide shaft to continuously cut off the air inlet surface and air outlet surface of the transverse flow fan during sliding, so that the gas at the air inlet surface and air outlet surface is separated; The wind breaking frame includes: a wind breaking ring slidably connected to the at least two guide shafts, a buffer gasket mounted on the wind breaking ring, and a linear motor connected to the buffer gasket, wherein: The buffer gasket is mounted at the position corresponding to the contact between the wind breaking ring and the guide shaft, and the linear motor is clamped on the at least two guide shafts and can reciprocate along the guide shaft;The outer side of the wind breaking ring is provided with a plurality of wind breaking cone heads.

2. The vibration isolation mounting structure for a transformer fan according to claim 1, wherein The guide shaft includes: a horizontal guide arm for sliding of the linear motor and a limit protrusion provided on both sides of the horizontal guide arm, and the limit protrusion is welded to the support limit ring.

3. The vibration isolation mounting structure for a transformer fan according to claim 1, wherein Further comprising: A second damping assembly sleeved on the rotating shaft of the squirrel cage motor; The second damping assembly includes: a rotary bearing sleeved on the rotating shaft of the squirrel cage motor, an inner fixed ring plate tightly attached to the outer side wall of the rotary bearing, a damping ring plate tightly attached to the outer side of the inner fixed ring plate, and an outer fixed ring plate tightly attached to the damping ring plate, wherein: The inner fixed ring plate, the damping ring plate and the outer fixed ring plate are all provided with a honeycomb hole structure.

4. The vibration isolation mounting structure for a transformer fan as set forth in claim 3, wherein The honeycomb holes on the inner fixed ring plate, the damping ring plate and the outer fixed ring plate gradually increase from inside to outside.

5. The vibration isolation mounting structure for a transformer fan as set forth in claim 3, wherein The honeycomb holes of the inner fixed ring plate are arranged towards the rotary bearing, and the honeycomb holes of the damping ring plate are arranged towards the side of the inner fixed ring plate.

6. The vibration isolation mounting structure for a transformer fan as set forth in claim 1, wherein Further comprising: A third damping assembly sleeved on the end rotating shaft; The third damping assembly includes: a first guide sleeve tightly attached to the end rotating shaft, a second guide sleeve tightly attached to the outer side of the first guide sleeve, and a third guide sleeve tightly attached to the outer side of the second guide sleeve, wherein: The lengths of the first guide sleeve, the second guide sleeve and the third guide sleeve gradually increase, and the first guide sleeve, the second guide sleeve and the third guide sleeve are all provided with a honeycomb hole structure.

7. A transformer fan comprising: The utility model discloses a kind of vibration damping mounting box shell to be installed in the bottom of several windings of transformer fan and transverse flow fan installed in the vibration damping mounting box shell, the transverse flow fan includes: a squirrel cage motor, the rotating part connected with the squirrel cage motor and the end rotating shaft connected in the end side of the rotating part, it is characterized by, Further comprising: a first damping assembly sleeved on the outer periphery of the rotating part to prevent the rotating part from surging; The first damping assembly includes: two support limit rings fastened in the vibration damping mounting box shell, at least two guide shafts connected between the two support limit rings and a wind breaking frame slidingly connected to the guide shafts;Wherein: The wind breaking frame reciprocates along the guide shaft to continuously cut off the air inlet surface and air outlet surface of the transverse flow fan during sliding, so that the gas at the air inlet surface and air outlet surface is separated; The wind breaking frame includes: a wind breaking ring slidably connected to the at least two guide shafts, a buffer gasket mounted on the wind breaking ring, and a linear motor connected to the buffer gasket, wherein: The buffer gasket is mounted at the position corresponding to the contact between the wind breaking ring and the guide shaft, and the linear motor is clamped on the at least two guide shafts and can reciprocate along the guide shaft;The outer side of the wind breaking ring is provided with a plurality of wind breaking cone heads. The guide shaft includes: a horizontal guide arm for sliding of the linear motor and a limit protrusion provided on both sides of the horizontal guide arm, and the limit protrusion is welded to the support limit ring. Further comprising: A second damping assembly sleeved on the rotating shaft of the squirrel cage motor; The second damping assembly includes: a rotary bearing sleeved on the rotating shaft of the squirrel cage motor, an inner fixed ring plate tightly attached to the outer side wall of the rotary bearing, a damping ring plate tightly attached to the outer side of the inner fixed ring plate, and an outer fixed ring plate tightly attached to the damping ring plate, wherein: The inner fixed ring plate, the damping ring plate and the outer fixed ring plate are all provided with a honeycomb hole structure. The honeycomb holes on the inner fixed ring plate, the damping ring plate and the outer fixed ring plate gradually increase from inside to outside. The honeycomb holes of the inner fixed ring plate are arranged towards the rotary bearing, and the honeycomb holes of the damping ring plate are arranged towards the side of the inner fixed ring plate. Further comprising: A third damping assembly sleeved on the end rotating shaft; The third damping assembly includes: a first guide sleeve tightly attached to the end rotating shaft, a second guide sleeve tightly attached to the outer side of the first guide sleeve, and a third guide sleeve tightly attached to the outer side of the second guide sleeve, wherein: The lengths of the first guide sleeve, the second guide sleeve and the third guide sleeve gradually increase, and the first guide sleeve, the second guide sleeve and the third guide sleeve are all provided with a honeycomb hole structure. The utility model discloses a kind of vibration damping mounting box shell to be installed in the bottom of several windings of transformer fan and transverse flow fan installed in the vibration damping mounting box shell, the transverse flow fan includes: a squirrel cage motor, the rotating part connected with the squirrel cage motor and the end rotating shaft connected in the end side of the rotating part, it is characterized by,

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