CN207795699U - A kind of centrifugal fan shockproof assembly - Google Patents

Abstract

The utility model discloses a kind of centrifugal fan shockproof assemblies,Include axial damping seat and radial shock absorber,The axial damping seat includes fixed column,It is connected with erecting bed at the top of the fixed column,Elastic projection made of rubber is formed on the erecting bed,The radial shock absorber includes shell,Installation cavity is formed with the enclosure interior is hollow,The installation cavity is formed with mounting hole on the side wall of the shell,The size outline of the mounting hole is less than the elastic projection,The elastic projection is connected to by interference fit in the mounting hole,End-face hole is offered in the end of the shell,Telescopic rod in grafting in the end-face hole,Mounting groove has been opened up on the inner wall of the installation cavity,It is provided with spring in the mounting groove,It is arranged with sliding block on the part that the telescopic rod extends in the installation cavity,The sliding block is slidably connected in the mounting groove and can apply pressure to the spring.

Description

A kind of centrifugal fan shockproof assembly

Technical field：

The utility model is related to wind turbine technical fields, have been specifically related to a kind of centrifugal fan shockproof assembly.

Background technology

Centrifugal blower at work, due to impeller therein be in trembling high-speed rotating, therefore that impeller axle can be caused, this Kind trembling can cause the vibration of spiral case when being transferred to spiral case, in addition, centrifugal blower will produce air-flow at work, air-flow is centrifuging When impacting spiral case inner wall in chamber, the low amplitude vibrations of spiral case are will also result in, the vibration of spiral case easy tos produce noise, influences building ring Border, and the holder also be easy to causeing for fixing spiral case loosens.

In the prior art, common damping damper is set to subtract in gap that can not be directly between spiral case and holder Shake, this is because spiral case has certain weight, this also causes its inertia larger, it is easy to and cause damping damper to fail, therefore Typically now it is that shock-absorbing is carried out to spiral case by the way that yielding rubber pad is arranged between the spiral case and holder of centrifugal blower, still, Yielding rubber pad for spiral case since the axial shake that impeller axle trembling generates has an apparent damping effect, and for spiral case by The irregular radial wobble impacted and generated in internal gas flow, yielding rubber pad can not carry out effective damping, this is because damping For rubber pad unlike spring, rubber is the elasticity using own material, can profit when by direct pressure perpendicular to rubber surface It is resetted with elastic properties of materials, but when by radial pressure, rubber can bend and can not restore completely, this results in damping to imitate The decline of fruit.

Utility model content：

In view of this, the purpose of this utility model be to provide for it is a kind of can buffer spiral case axially and radially vibrate it is novel Centrifugal blower shockproof assembly.

A kind of centrifugal fan shockproof assembly, it is characterised in that：Include axial damping seat and radial shock absorber, institute It includes fixed column to state axial damping seat, and the fixed column is plugged on ground or other horizontal stationary planes, in the fixation It is connected with erecting bed at the top of column, elastic projection made of rubber, the radial shock absorber packet are formed on the erecting bed Shell has been included, has been formed with installation cavity the enclosure interior is hollow, the installation cavity is formed with peace on the side wall of the shell Hole is filled, the size outline of the mounting hole is less than the elastic projection, and the elastic projection is connected to described by interference fit In mounting hole, end-face hole is offered in the end of the shell, in the end-face hole grafting telescopic rod, in the installation cavity Inner wall on opened up mounting groove, be provided with spring in the mounting groove, the installation cavity extended in the telescopic rod Sliding block is arranged on part, the sliding block is slidably connected in the mounting groove and can apply pressure to the spring.

As the improvement of the utility model, in the fixed spacing shim in the end of the telescopic rod, the spacing shim Upper and lower ends are slidably connected in the mounting groove, when the bottom of chamber of the spacing shim and the installation cavity contacts, can be hindered Only the telescopic rod continues to move inward.

As a further improvement of the utility model, the installation edge of table upper edge it is circumferentially fixed three arcs connect The bottom of bar, the curved rod forms mounting hole, and iron set is provided in the mounting hole, is equipped in iron set Screw is clamped with rubber pad between iron set and the inner wall of the mounting hole.

As the preferred of the utility model, dust cover is arranged in the hull outside.

As the specific technical solution of the utility model, the top of the curved rod is bolted on the installation On platform.

Compared with prior art, the utility model has the advantage of：Pass through yielding rubber holder collocation damper so that should Centrifugal blower shockproof assembly can effectively improve spiral case with the axial vibration and radial vibration of simultaneous buffering centrifugal blower volute The noise situation of fix tightly soundness and reduction centrifugal blower at work.

Description of the drawings：

Fig. 1 is that the axial damping seat overall structure in the utility model embodiment in centrifugal fan shockproof assembly is shown It is intended to；

Fig. 2 is the end plane angle of the radial shock absorber in centrifugal fan shockproof assembly in the utility model embodiment Schematic diagram；

Fig. 3 is the vertical view of Fig. 1；

Fig. 4 is the overall structure of the radial shock absorber in centrifugal fan shockproof assembly in the utility model embodiment Schematic diagram.

Specific implementation mode：

The utility model preferred embodiment is elaborated below in conjunction with the accompanying drawings.

The utility model provides a kind of centrifugal fan shockproof assembly, includes that axial damping seat 1 and radial direction subtract Device 2 is shaken, axial damping seat is used to reduce the axial vibration of centrifugal blower volute, and radial shock absorber is then used to reduce centrifugal blower The radial vibration of spiral case, since the volute outer wall of centrifugal blower is arc-shaped setting（Similar to the shell of snail back, therefore order Entitled spiral case）, therefore a position is first chosen, radial shock absorber is fixed on the outer wall of spiral case by connector 3, such as Fig. 2 institutes Show, which be connected to 21 on the shell of radial shock absorber by shaft 33, and through-hole 31 is offered on connector, is led to It crosses and is screwed into screw 32 in through-holes so that the end of screw is resisted against on the outer wall of spiral case, to position radial shock absorber, so The angle of connector and shell is adjusted afterwards so that the telescopic rod 22 of radial shock absorber can be resisted against another position of volute outer wall On, then tighten shaft（Similar to the mode for tightening screw）So that it no longer rotates between connector and shell, just completes Fixation to radial shock absorber.

Axial damping seat includes fixed column 11, and fixed column is plugged on ground or other horizontal stationary planes, in fixation It is connected with circular erecting bed 12 at the top of column, elastic projection 13 made of rubber, radial damping are formed on erecting bed Device is in addition to including above-mentioned shell 21, and hollow inside housings to be formed with installation cavity, installation cavity is formed on the side wall of shell There are mounting hole 23, the size outline of mounting hole to be less than elastic projection, elastic projection is connected to by interference fit in mounting hole, mistake Cooperation of being full of refers to when mounted squeezing into elastic projection in mounting hole first with the elasticity of rubber, and when elastic projection is squeezed into After in mounting hole, due to the elastic-restoring force of rubber so that elastic projection is tightly attached on the inner wall of mounting hole, so that peace Together with dress platform is securely fixed with shell.

Offer end-face hole in the end of shell, in end-face hole grafting telescopic rod above-mentioned, in the installation cavity Mounting groove 4 has been opened up on inner wall, spring 5 is provided in mounting groove, and the part of the installation cavity is extended in the telescopic rod On be arranged with sliding block 6, sliding block is slidably connected in mounting groove and can apply pressure, specifically, the upper and lower ends of sliding block to spring Protrusion is formd, the end of spring is withstood in protrusion, when protrusion is slided along mounting groove, can push bullet along mounting groove direction Spring is suppressed to be formed to spring.In the fixed spacing shim 7 in the end of telescopic rod, the upper and lower ends and sliding block of spacing shim It is equally slidably connected in the mounting groove, when the bottom of chamber of spacing shim and installation cavity contacts, the telescopic rod can be prevented Continue to move inward, thus plays position-limiting action.When radial vibration occurs for spiral case, vibration can be passed to telescopic rod so that Telescopic rod is to feeding inside installation cavity, and telescopic rod can suppress spring at this time, and the directional pressure provided by spring is this to buffer Radial vibration, to play the role of damping.

And for the axial vibration of spiral case, the erecting bed of axial damping seat can be passed to by radial shock absorber, installed Circumferentially by 9 fixed three curved rods 8 of bolt on edge of table, the bottom of curved rod forms mounting hole 81, Be provided with iron set 82 in mounting hole, screw 83 be equipped in iron set, iron set and the inner wall of the mounting hole it Between be clamped with rubber pad 84, the head diameter of screw is greater than the diameter of iron set, and such nut can be covered in the top surface of rubber pad On, when the axial vibration of spiral case is transferred to screw, damping is carried out to this axial vibration by rubber pad.

In addition, wind turbine is that the air-flow that work generates blows to some dusts on telescopic rod in order to prevent, telescopic rod is caused Clamping stagnation occurs for feeding, is arranged with dust cover 10 in hull outside, telescopic rod is located at lower section, thus plays telescopic rod by dust cover Dustproof effect.

The above makes preferred embodiments of the present invention, does not depart from for those of ordinary skill in the art Under the premise of the utility model principle, several variations and modifications can also be made, these also should be regarded as the protection of the utility model Range.

Claims (5)

1. a kind of centrifugal fan shockproof assembly, it is characterised in that：Include axial damping seat and radial shock absorber, it is described Axial damping seat includes fixed column, and the fixed column is plugged on ground or other horizontal stationary planes, in the fixed column Top be connected with erecting bed, elastic projection made of rubber is formed on the erecting bed, the radial shock absorber includes Shell is formed with installation cavity the enclosure interior is hollow, and the installation cavity is formed with installation on the side wall of the shell The size outline in hole, the mounting hole is less than the elastic projection, and the elastic projection is connected to the peace by interference fit Fill hole in, offer end-face hole in the end of the shell, in the end-face hole grafting telescopic rod, in the installation cavity Mounting groove has been opened up on inner wall, spring is provided in the mounting groove, and the portion of the installation cavity is extended in the telescopic rod Sliding block is arranged on point, the sliding block is slidably connected in the mounting groove and can apply pressure to the spring.

2. centrifugal fan shockproof assembly according to claim 1, it is characterised in that：In the end of the telescopic rod The upper and lower ends of fixed spacing shim, the spacing shim are slidably connected in the mounting groove, when the spacing shim When being contacted with the bottom of chamber of the installation cavity, the telescopic rod can be prevented to continue to move inward.

3. centrifugal fan shockproof assembly according to claim 2, it is characterised in that：In the installation edge of table Upper edge it is circumferentially fixed three curved rods, the bottom of the curved rod form mounting hole, be arranged in the mounting hole There is iron set, screw is equipped in iron set, rubber pad is clamped between iron set and the inner wall of the mounting hole.

4. centrifugal fan shockproof assembly according to claim 1, it is characterised in that：It is arranged in the hull outside There is dust cover.

5. centrifugal fan shockproof assembly according to claim 3, it is characterised in that：The top of the curved rod It is bolted on the erecting bed.