CN108317103A - Tunnel fan isolation mounting - Google Patents
Tunnel fan isolation mounting Download PDFInfo
- Publication number
- CN108317103A CN108317103A CN201810152303.3A CN201810152303A CN108317103A CN 108317103 A CN108317103 A CN 108317103A CN 201810152303 A CN201810152303 A CN 201810152303A CN 108317103 A CN108317103 A CN 108317103A
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- CN
- China
- Prior art keywords
- stator
- inner cylinder
- damper
- isolation mounting
- damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of tunnel fan isolation mountings, including Blower Housing and the engine base for being used to support Blower Housing；The two bottom sides of engine base are equipped with the resilient damping board of two parallel intervals setting, and infusion bag is equipped between two resilient damping boards and ground, and cast elastomers are poured in infusion bag and form elastomer layer；Damping unit is equipped between two resilient damping boards, damping unit includes magneto-rheological torsion damper and movement conversion mechanism；Movement conversion mechanism includes the rack for bearing oscillating load and the gear for rack linear movement to be changed into rotary motion, the upper end of rack is fixed on engine base lower surface, lower end and the guide holder cooperation for being located at ground vertically, and gear is fixedly connected on the shaft and synchronous rotation of magneto-rheological torsion damper；The present invention can reduce the transmission of vibration earthward from ventilation blower so that vibration is weakened, and has preferably vibration damping and noise reduction.
Description
Technical field
The present invention relates to constructing tunnel field, more particularly to a kind of tunnel fan isolation mounting.
Background technology
In constructing tunnel, pernicious gas is released in stratum when due to explosive charge, the use of internal combustion engine, excavation, and
The factors such as construction personnel's breathing, keep air in hole very dirty, have harmful effect to construction personnel.Therefore, when constructing tunnel
Ventilation be to provide good construction environment, upkeep operation personnel's health, ensure smooth construction, improve working efficiency, ensure
The essential condition of construction quality.
Existing ventilating system generally comprises air inlet and air return lane, and the front end of air inlet and air return lane is face, into
Air way is connected with air return lane leading portion by a leading portion transverse passage-way, and at least one is equipped between leading portion transverse passage-way and tunnel portal
Stage casing transverse passage-way, stage casing transverse passage-way are connected between air inlet and air return lane and are closed using sealing curtain, set in air inlet
It is equipped with the ventilation blower towards tunnel front end, the ventilation blower backwards to tunnel front end is then provided in air return lane.Ventilation blower usually exists
The bottom of Blower Housing is fixedly welded with engine base, then is fixed on ground by engine base；Powerful ventilation blower generates at work
Strong vibration, this conduct vibrations to ground produce huge noise, are not only degrading tunneling operation environment, but also directly
Influence city environmental quality.
Invention content
In view of this, the purpose of the present invention is to provide a kind of tunnel fan isolation mounting, can reduce from ventilation blower
Vibration transmission earthward so that vibration is weakened, and has preferably vibration damping and noise reduction, to optimize tunneling operation ring
City environmental quality is improved in border.
The tunnel fan isolation mounting of the present invention, including Blower Housing and the engine base for being used to support Blower Housing；It is described
The two bottom sides of engine base are equipped with the resilient damping board of two parallel intervals setting, are equipped with and fill between two resilient damping boards and ground
Bag is noted, cast elastomers are poured in the infusion bag and form elastomer layer；Damping is equipped between two resilient damping boards
Device, the damping unit include that magneto-rheological torsion damper and the linear motion for generating vibration are converted to rotary motion
So that the movement conversion mechanism that magneto-rheological torsion damper inhibits vibration；The movement conversion mechanism includes for bearing
The rack of oscillating load and for rack linear movement to be changed into the gear of rotary motion, the upper end of the rack is fixed vertically
In engine base lower surface, lower end and the guide holder cooperation for being located at ground, the gear is fixedly connected on the magnetorheological torsion damping
The shaft and synchronous rotation of device.
Further, the resilient damping board and infusion bag are strip, and the length of the resilient damping board and infusion bag
It is consistent with the length direction of engine base to spend direction.
Further, the resilient damping board is made of thermoplastic polyester elastomer material.
Further, the magneto-rheological torsion damper includes damper cylinder body and the stator being located in damper cylinder body and interior
Cylinder, the stator are fixedly connected with damper cylinder body, and the outer circle of stator is equipped with electromagnetic coil；The shaft is solid with inner cylinder
The fixed rotor assembly for connecting and cooperatively forming magneto-rheological torsion damper；The shaft coaxially passes through the endoporus of stator, and shaft
It is equipped with the spiral bar for magnetorheological fluid in auger damper cylinder body positioned at the part of endoporus；The inner cylinder is sleeved on stator
Outside, the gap being connected, magnetorheological fluid are equipped between the endoporus of stator, stator and inner cylinder and between inner cylinder and damper cylinder body
It is filled in gap and can be flowed under the promotion of spiral bar.
Further, the damper cylinder body includes outer barrel and is separately fixed at the left end cap and right end cap of outer barrel both sides, institute
The left side for stating stator is fixedly connected with left end cap, and the left side of stator is equipped with for for magnetorheological between stator and inner cylinder
Liquid enters the channel slot of stator inner hole.
Further, the both ends of the shaft are pierced by from left end cap, right end cap and are fixedly connected with gear respectively, two gears
It is respectively cooperating with transmission with two racks.
Further, the right side of the inner cylinder is equipped with the axis hole for being passed through for shaft, and the right side of inner cylinder is equipped with and uses
In entering the recirculation hole in inner cylinder for the magnetorheological fluid between inner cylinder and outer barrel.
Further, be used to generate the magnetic field of control magnetic rheological body for by the electromagnetic coil and set of permanent magnets at compound magnetic
Property structure；The permanent magnet is annular permanent magnet, and the stator is radially equipped with for installing permanent magnet successively from inside to outside
First annular groove and the second annular groove for installing electromagnetic coil.
Further, the cylinder of the inner cylinder is using first annular cylinder made of permeability magnetic material and using non-magnetic material
The second annular canister is formed by connecting made of material, and the second annular canister face electromagnetic coil is arranged.
Beneficial effects of the present invention：
The tunnel fan isolation mounting of the present invention is perfused with cast elasticity in the infusion bag below resilient damping board
Body so that cast elastomers form elastomer layer in infusion bag, and resilient damping board forms compound damping layer with elastomer layer,
Stable structure, the resistance to mechanical intensity of the compound damping layer are high, can be supplied to ventilation blower vibration damping, noise reduction and operate steadily excellent
Point can effectively reduce the transmission of vibration earthward from ventilation blower so that vibration is weakened；Meanwhile magnetorheological torsion subtracts
The device that shakes is matched with movement conversion mechanism, can convert reciprocal vibratory impulse to stable rotary motion, realizes overall process
Steady vibration damping；Therefore, the present invention has preferably vibration damping and noise reduction, to optimize tunneling operation environment, improves urban environment
Quality.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the vertical view of the damping unit of the present invention.
Specific implementation mode
As shown in Figure 1 and Figure 2：The tunnel fan isolation mounting of the present embodiment, including Blower Housing 21 and it is used to support wind
The engine base 22 of casing body 21；The two bottom sides of the engine base 22 are equipped with the resilient damping board 4 of two parallel intervals setting, two bullets
Property damping block 4 and ground 17 between be equipped with infusion bag 5, cast elastomers 5a is poured in the infusion bag 5 and forms elastomer
Layer；Arrow indicates gas flow direction in Fig. 1, wherein the arrow with open circles indicates dirty gas；Elastomer layer is by a variety of
The mixed cast elastomers 5a of component fluids, each component technical requirement are：Viscosity 100mPa.S-50000mPa.S, stream
Dynamic length 0.1m-10m, flowing time 1.00min-300min, hardening time 0.10h-36h；Elastomer layer instillation process is as follows：
In 4 times stickup infusion bags 5 of resilient damping board elastomer is formed after cured by liquid castable elastomer 5a injection infusion bags 5
Layer；Infusion bag 5 can certainly be placed in the slot of preset shape, so that the cast elastomers 5a in infusion bag 5 is solid
Determine into preset shape.
By being perfused with cast elastomers 5a in the infusion bag 5 below resilient damping board 4 so that cast elastomers 5a exists
Elastomer layer is formed in infusion bag 5, resilient damping board 4 forms compound damping layer with elastomer layer, the compound damping layer
Stable structure, resistance to mechanical intensity are high, the advantages of capable of being supplied to ventilation blower vibration damping, noise reduction and operate steadily, can effectively reduce and come from
The transmission for vibrating earthward 17 of ventilation blower so that vibration is weakened, and has preferably vibration damping and noise reduction, to optimize tunnel
Road operating environment improves city environmental quality.
In the present embodiment, the resilient damping board 4 and infusion bag 5 are strip, and the resilient damping board 4 and perfusion
The length direction of bag 5 is consistent with the length direction of engine base 22, reaches comprehensive, sufficient vibration damping；The resilient damping board 4 uses
Thermoplastic polyester elastomer material is made, and thermoplastic polyester elastomer material property is excellent, can significantly extend the use of resilient damping board 4
Service life improves its stability, it is ensured that the safety and stability of ventilation blower operation.
In the present embodiment, damping unit is equipped between two resilient damping boards 4, the damping unit includes magnetorheological torsion
Turn damper 3 and the linear motion for generating vibration is converted to rotary motion so that magneto-rheological torsion damper 3 is to vibration
The movement conversion mechanism inhibited；The movement conversion mechanism includes rack 901 for bearing oscillating load and for will
Rack 901, which moves along a straight line, is changed into the gear 902 of rotary motion, and the upper end of the rack 901 is fixed on 22 following table of engine base vertically
Face, lower end and the cooperation of guide holder 903 for being located at ground 17, the gear 902 are fixedly connected on the magneto-rheological torsion damper 3
Shaft 31 and rotate synchronously；Shaft 31 be magneto-rheological torsion damper 3 rotating part, rotation so that magnetorheological fluid with
Flowing, shearing or mixed pattern carry out damping vibration attenuation；Rack 901 and 902 engaged transmission of gear；901 width of rack is more than
The width of gear 902；Guide holder guides rack 901 to move vertically；Magneto-rheological torsion damper 3 matches with movement conversion mechanism
It closes, reciprocal vibratory impulse can be converted to stable rotary motion, realize the steady vibration damping of overall process.
In the present embodiment, the magneto-rheological torsion damper 3 includes that damper cylinder body and being located in damper cylinder body is determined
Son 301 and inner cylinder 302, the stator 301 are fixedly connected with damper cylinder body, and the outer circle of stator 301 is equipped with electromagnetic wire
Circle 303；The shaft 31 is fixedly connected with inner cylinder 302 and cooperatively forms the rotor assembly of magneto-rheological torsion damper 3；Described turn
Axis 31 coaxially passes through the endoporus 301a of stator 301, and shaft 31 is located at the part of endoporus equipped with for auger damper cylinder
The spiral bar 305 of internal magnetorheological fluid；The inner cylinder 302 is sleeved on outside stator 301, the endoporus 301a of stator 301, stator 301 with
It is equipped between inner cylinder 302 and between inner cylinder 302 and damper cylinder body the gap 304 being connected, magnetorheological fluid is filled in gap
It can flow in 304 and under the promotion of spiral bar 305；Damper cylinder body can be fixed on ground；Spiral bar 305 is so that 31 shape of shaft
At screw shaft structure, has the function of helical feed；It can slot along the hand of spiral in spiral bar 305, the potting resin in slot
Resin seal band is formed, makes to seal between the hole wall of 301 endoporus of spiral bar 305 and stator；It is pushed away by the spiral bar 305 of shaft 31
Dynamic magnetorheological fluid circulates, and takes full advantage of flowing and the shearing work pattern of magnetorheological fluid, the damping force of generation is big, can
To realize that the transmission of high torque, adjustable extent are wide under the conditions of isometric.
In the present embodiment, the damper cylinder body includes outer barrel 307 and the left end cap for being separately fixed at 307 both sides of outer barrel
308 and right end cap 309, the left side of the stator 301 be fixedly connected with left end cap 308, and the left side of stator 301 be equipped with use
In the channel slot (not shown) for entering 301 endoporus of stator for the magnetorheological fluid between stator 301 and inner cylinder 302；Shaft 31
Angular contact bearing and sealing ring can be set between end cap；By channel slot, the magnetorheological fluid between stator 301 and inner cylinder 302
301 endoporus of stator can be entered, magnetorheological fluid keeps flow regime in endoporus always when device acts on to realize；In addition,
The right side of the inner cylinder 302 is equipped with axis hole for being passed through for shaft 31, between axis hole and shaft 31 by fastening bolt to
It is connected；And the right side of inner cylinder 302 is equipped with for entering in inner cylinder 302 for the magnetorheological fluid between inner cylinder 302 and outer barrel 307
Recirculation hole, so that the magnetorheological fluid between inner cylinder 302 and outer barrel 307 is also flowable so that in damper cylinder body
Magnetorheological fluid is fully circulated, and effectively prevents magnetorheological fluid sedimentation and the degradation problem that brings so that device
Reliability of operation is ensured；Recirculation hole can be six or other Rational numbers being circumferentially uniformly arranged.
In the present embodiment, the both ends of the shaft 31 be pierced by respectively from left end cap 308, right end cap 309 and with gear 902
It is fixedly connected, two gears 902 and two racks 901 are respectively cooperating with transmission, to improve the stationarity and promptness of power transmission.
In the present embodiment, the magnetic field for generating control magnetic rheological body is by 310 groups of the electromagnetic coil 303 and permanent magnet
At composite magnetic structure；Coil magnetic can be changed by the electrical current size and electrical current direction that change electromagnetic coil 303
With the stacked system of permanent magnetic field and be superimposed amplitude, it can be achieved that variable damping of the device under external load function in a wider context
Motor function；Permanent magnet 310 can also play the role of fail safe simultaneously, i.e., when device powers off, be still capable of providing certain
Damping force；The permanent magnet 310 is annular permanent magnet 310, and the stator 301 is radially equipped with for pacifying successively from inside to outside
The first annular groove and the second annular groove for installing electromagnetic coil 303 for filling permanent magnet 310, convenient for the installation and more of magnetic part
It changes；Wherein, the first annular groove is communicated with the second annular groove, and electromagnetic coil 303 is partially around on permanent magnet 310；First annular groove can wrap
Include that several circumferential directions are uniformly arranged and radial section is trapezoidal or direction unit groove, permanent magnet 310 is independent forever by several
Magnet Unit 310, which is placed in unit groove, forms loop configuration.
In the present embodiment, the cylinder of the inner cylinder 302 be the first annular cylinder 302a made of using permeability magnetic material and
It is formed by connecting using the second annular canister 302b made of un-conducted magnetic material, and the second annular canister 302b face electromagnetic coils
303 settings；Inner cylinder 302 is welded using multistage different materials, effectively changes what electromagnetic coil 303 in device work generated
The magnetic circuit in magnetic field, to increase the effective coverage of magnetorheological fluid, i.e., damping force (torque) value that aggrandizement apparatus generates；It is preferred that
Ground, the first annular cylinder 302a are made of 45# steel, and the second annular canister 302b is made of 304 stainless steels, and described
One annular canister 302a is connected with the second annular canister 302b by welding manner.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (9)
1. a kind of tunnel fan isolation mounting, including Blower Housing and the engine base for being used to support Blower Housing；It is characterized in that：
The two bottom sides of the engine base are equipped with the resilient damping board of two parallel intervals setting, are set between two resilient damping boards and ground
There are infusion bag, cast elastomers to be poured in the infusion bag and form elastomer layer；It is equipped between two resilient damping boards
Damping unit, the damping unit include that magneto-rheological torsion damper and the linear motion for generating vibration are converted to rotation
It moves so that the movement conversion mechanism that magneto-rheological torsion damper inhibits vibration；The movement conversion mechanism includes being used for
The rack of oscillating load and the gear for rack linear movement to be changed into rotary motion are born, the upper end of the rack is vertical
It is fixed on engine base lower surface, lower end and the guide holder cooperation for being located at ground, the gear is fixedly connected on the magnetorheological torsion
The shaft and synchronous rotation of damper.
2. tunnel fan isolation mounting according to claim 1, it is characterised in that：The resilient damping board and infusion bag
It is strip, and the length direction of the resilient damping board and infusion bag is consistent with the length direction of engine base.
3. tunnel fan isolation mounting according to claim 2, it is characterised in that：The resilient damping board uses thermoplastic
Property polyester elastic materials are made.
4. tunnel fan isolation mounting according to claim 1, it is characterised in that：The magneto-rheological torsion damper packet
The stator and inner cylinder for including damper cylinder body and being located in damper cylinder body, the stator are fixedly connected with damper cylinder body, and
The outer circle of stator is equipped with electromagnetic coil；The shaft is fixedly connected with inner cylinder and cooperatively forms turning for magneto-rheological torsion damper
Sub-component；The shaft coaxially passes through the endoporus of stator, and shaft is located at the part of endoporus equipped with for auger damper
The spiral bar of magnetorheological fluid in cylinder body；The inner cylinder is sleeved on outside stator, between the endoporus of stator, stator and inner cylinder and inner cylinder with
The gap being connected is equipped between damper cylinder body, magnetorheological fluid is filled in gap and can be flowed under the promotion of spiral bar.
5. tunnel fan isolation mounting according to claim 4, it is characterised in that：The damper cylinder body includes outer barrel
And it is separately fixed at the left end cap and right end cap of outer barrel both sides, the left side of the stator is fixedly connected with left end cap, and stator
Left side be equipped with channel slot for entering stator inner hole for the magnetorheological fluid between stator and inner cylinder.
6. tunnel fan isolation mounting according to claim 5, it is characterised in that：The both ends of the shaft are respectively from a left side
End cap, right end cap are pierced by and are fixedly connected with gear, and two gears and two racks are respectively cooperating with transmission.
7. tunnel fan isolation mounting according to claim 6, it is characterised in that：The right side of the inner cylinder, which is equipped with, to be used
In the axis hole passed through for shaft, and the right side of inner cylinder is equipped with for entering in inner cylinder for the magnetorheological fluid between inner cylinder and outer barrel
Recirculation hole.
8. tunnel fan isolation mounting according to claim 7, it is characterised in that：For generating control magnetic rheological body
Magnetic field be by the electromagnetic coil and set of permanent magnets at composite magnetic structure；The permanent magnet is annular permanent magnet, described fixed
Son is radially equipped with the first annular groove for installing permanent magnet and the second annular groove for installing electromagnetic coil successively from inside to outside.
9. tunnel fan isolation mounting according to claim 8, it is characterised in that：The cylinder of the inner cylinder is by adopting
The second annular canister is formed by connecting made of the first annular cylinder made of permeability magnetic material and use un-conducted magnetic material, and described second
Annular canister face electromagnetic coil is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152303.3A CN108317103A (en) | 2018-02-14 | 2018-02-14 | Tunnel fan isolation mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152303.3A CN108317103A (en) | 2018-02-14 | 2018-02-14 | Tunnel fan isolation mounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108317103A true CN108317103A (en) | 2018-07-24 |
Family
ID=62899857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810152303.3A Pending CN108317103A (en) | 2018-02-14 | 2018-02-14 | Tunnel fan isolation mounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108317103A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016602A (en) * | 2012-12-10 | 2013-04-03 | 重庆大学 | Magneto-rheological torsion damper |
| CN205559672U (en) * | 2016-05-06 | 2016-09-07 | 华东交通大学 | Adopt rack and pinion and bevel gear transmission to carry out magneto rheological damper that energy was gathered |
| CN107339117A (en) * | 2017-08-16 | 2017-11-10 | 重庆工业职业技术学院 | Ventilating system during constructing tunnel |
| CN107498633A (en) * | 2017-10-05 | 2017-12-22 | 嘉兴新博信息科技有限公司 | A kind of decompressor for improving shock-absorbing performance |
-
2018
- 2018-02-14 CN CN201810152303.3A patent/CN108317103A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016602A (en) * | 2012-12-10 | 2013-04-03 | 重庆大学 | Magneto-rheological torsion damper |
| CN205559672U (en) * | 2016-05-06 | 2016-09-07 | 华东交通大学 | Adopt rack and pinion and bevel gear transmission to carry out magneto rheological damper that energy was gathered |
| CN107339117A (en) * | 2017-08-16 | 2017-11-10 | 重庆工业职业技术学院 | Ventilating system during constructing tunnel |
| CN107498633A (en) * | 2017-10-05 | 2017-12-22 | 嘉兴新博信息科技有限公司 | A kind of decompressor for improving shock-absorbing performance |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |
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| RJ01 | Rejection of invention patent application after publication |