CN207093411U - A kind of drying room and its circulating fan - Google Patents

Abstract

The utility model discloses a kind of drying room and its circulating fan, its drip irrigation device is:Circulating fan, including motor, motor lifting pedestal, transmission device, fan, fan housing, detection means；Transmission device includes：Line shaft, driving pulley, belt, driven pulley, scroll bar, the turbine being engaged with scroll bar；Line shaft is connected with motor；Driving pulley is fixed on line shaft；Driven pulley is connected by belt and driving pulley；Scroll bar one end is fixedly connected with driven pulley；Turbine is connected with scroll bar；Fan includes rotating shaft and impeller；One end of the rotating shaft of fan is fixedly connected with turbine in transmission device；The other end connection of the rotating shaft of impeller and fan；Fan housing is sheathed on impeller periphery, and fan housing opening is provided with access doors；Detection means includes one group of vibration-detecting instrument.Drying room, including circulating fan.The utility model is applied to composite fertilizer's anti-caking material and produced, and has applied widely, reliability height, operating efficiency height, convenient the characteristics of overhauling.

Description

A kind of drying room and its circulating fan

Technical field

Fluid device technical field is the utility model is related to, more particularly to a kind of drying room and its circulating fan.

Background technology

Blower fan is a kind of machinery for compressing and conveying gas, and it can convert electrical energy into kinetic energy, and to promote gas stream It is dynamic.And when forming circulation during flowing gas using blower fan, the blower fan can utilized is referred to as circulating fan.

, it is necessary to using the air-flow in circulating fan agitation drying room in drying room system, making drying room, temperature is uniform everywhere, ensures Raw material is heated evenly in drying room.The electric machine structure of traditional drying room generally use motor direct-drive fan blade.However, temperature in drying room Higher, circulating fan works at high temperature, and direct drive structure easily makes amount of heat be directly delivered to motor by fan blade, Cause electrical fault.When serious, motor or motor bearings can be also burnt out, causes whole motor to scrap.

In order to solve the above problems, the existing following patent in China：

Patent announcement number：CN203476744U, discloses a kind of circulating fan, including motor, power output shaft, driven Axle, fan blade, installing plate, driving pulley, driven pulley and conveyer belt, motor are connected with pto, driving pulley peace On power output shaft, driven pulley is arranged on driven shaft, and conveyer belt is set in driving pulley and the driven belt simultaneously On wheel, so as to which driving pulley and driven pulley are connected, fan blade is arranged on driven shaft, and motor driving power output shaft turns It is dynamic, and the transmission of driving pulley, conveyer belt, driven pulley and driven shaft is passed sequentially through to drive fan blade to rotate.However, the practicality It is new following defect to be present：Transmission mechanism is single between motor and fan blade, can not adapt to the assembly environment of complexity, can not be applied to In drying room system；It is more suitable from belt transmission to avoid heat transfer due to the function particularity of drying room system, but During work, because the pulling force difference on belt wheel both sides and corresponding deformation form Elastic Sliding through difference, cause driving wheel and driven pulley Speed loss；And will cause skidding during belt overload, the motion of belt is played pendulum, efficiency drastically declines, mill Damage aggravation, have a strong impact on the life-span of belt；Belt can produce in operation to be stretched repeatedly, makes skin around the joint performance of quyi particularly on belt wheel Friction, which is produced, with internal portion causes power loss；Plastic deformation can occur for belt long-term use, influence its elasticity, reduce transmission Efficiency.It follows that the transmission device scope of application of the blower fan is narrow, reliability is low, and transmission efficiency is low.

Utility model content

In view of the deficienciess of the prior art, the first purpose of the present utility model is to provide a kind of circulating fan, feature It is transmission efficiency, the belt of transmission device is not easy to skid, and reliability is high.

Above-mentioned first technical purpose of the present utility model technical scheme is that：A kind of circulated air Machine, including motor, motor lifting pedestal, transmission device, fan, fan housing, detection means；Motor is fixed on motor lifting pedestal On；Transmission device includes：Line shaft, driving pulley, belt, driven pulley, scroll bar, the turbine being engaged with scroll bar；Line shaft It is connected with motor；Driving pulley is fixed on line shaft；Driven pulley is connected by belt and driving pulley；Belt The closed ring adhesive tape of equidistant double wedge is provided with for surface；The periphery of driving pulley and driven pulley is equipped with some and belt The teeth groove that double wedge is meshed；Scroll bar one end is fixedly connected with driven pulley；Turbine is connected with scroll bar；Fan include rotating shaft and Impeller；One end of the rotating shaft of fan is fixedly connected with turbine in transmission device；The other end connection of the rotating shaft of impeller and fan；Wind The enclosure is provided with through hole at the top of impeller periphery, fan housing；The rotating shaft of fan passes through through hole at the top of fan housing；Fan housing opening be provided with into Mouth door；Detection means includes one group of vibration-detecting instrument for being used for detection blower fan failure：Vibration-detecting instrument one and vibration-detecting instrument two； Vibration-detecting instrument one is arranged on motor lifting pedestal；Vibration-detecting instrument two is arranged in the rotating shaft of fan.

Pass through above-mentioned technical proposal, the working method of the circulating fan are as follows：Line shaft is driven to rotate after electrical power, will Power is transferred to the driving pulley being fixedly connected with line shaft, by driving pulley by belt drive driven pulley and with it is driven The scroll bar of belt wheel connection rotates, and power is transferred to the turbine coordinated with it by scroll bar again, then by turbine drive fan rotating shaft and Wheel rotation, so as to realize the vertical transmission of power, preferably suitable for drying room system；

The maintenance mode of the circulating fan is as follows：Vibration-detecting instrument one and vibration-detecting instrument two monitor motor and fan respectively Vibration Condition, and the vibration data of collection is sent to rear control room；By motor is produced in the case of stable power-supplying Raw vibration values and the vibration values of fan steady operation are in certain scope, if being broken down during operation, motor and wind Fan can all produce certain unstable vibration value；The vibration data that vibration-detecting instrument one and vibration-detecting instrument two are tested is sent to After control room, maintenance personal can according to caused by motor and fan vibration values variable come the overall running of remote monitoring circulating fan Situation；If there is vibration values deviation, maintenance personal can in time be on the scene and be repaired, and shorten motor and fan excessive damage Caused unnecessary maintenance time and maintenance cost, reduce the time that production stops caused by circulating fan damages, improve life The overall efficiency of production, adds device reliability；If the problem of detecting is that belt deformation loosens in transmission device, maintenance personal The height of motor lifting pedestal need to be only adjusted, appropriate drive up motor position, reduces belt deterioration, add transmission can By property, avoid machine of tearing open and change time cost caused by belt；

Using the engagement type belt transmission with equidistant double wedge, transmission efficiency can be effectively improved, avoids belt slippage from making The motion of belt plays pendulum.

Preferably, each gullet base both ends of driving pulley and driven pulley are equipped with air-vent, and the two of the teeth groove Side channel wall is equipped with the air vent with teeth groove on the outside of insertion cell wall.

Pass through above-mentioned technical proposal, air vent and air-vent are set in the side of driving pulley and driven pulley, in belt When rotating at a high speed, wind is blown into teeth groove by air vent and air-vent, and belt is cooled down；With driving pulley and driven belt The transmission of wheel, by heat caused by belt friction and by fan by turbine, scroll bar transmission come heat distribute, so as to The operating temperature of belt is reduced, extends belt service life.

Preferably, air vent is tilts air-vent, and the air vent of the driving pulley is from inside to outside towards driving pulley Rotation direction tilts；The air vent of the driven pulley tilts towards the rotation direction of driven pulley from inside to outside.

Pass through above-mentioned technical proposal, due to being obliquely installed for air vent, incline direction is the direction of pulley rotation, in skin Belt wheel advantageously forms circulating current when rotating, improve cooling effect of the blowing to belt.

Preferably, the wire netting for being used for filtering dust is provided with the inside of access doors.

Pass through above-mentioned technical proposal, avoid dust from entering fan, block fan spindle bearing, influence fan normal work.

Preferably, access doors include：Framework and some flabellums；The framework includes ring frame and newel；The fan Leaf one end is fixedly connected with newel；The other end is fixedly connected with ring frame.

Pass through above-mentioned technical proposal, be advantageous to the air output of scattered fan, expand the wind-out range of fan.

Preferably, the thickness range of the flabellum of access doors is 4.0mm ~ 5.0mm.

Pass through above-mentioned technical proposal, avoid the too small blast that can not bear of access doors flabellum vane thickness from causing to be broken, also keep away Exempt from the excessive raising manufacturing cost of vane thickness, increase rotary inertia, cause the mechanical wear of blade and newel junction tighter Weight.

Preferably, the flabellum number of access doors is 8.

Pass through above-mentioned technical proposal, avoid flabellum quantity excessive, manufacturing cost is high；Also it is avoided that flabellum quantity is very few, it is single Individual fan blade area is excessive, excessive to air agitation, causes the flabellum proportion of goods damageds to improve.

Preferably, the material of impeller is pack alloy.

Pass through above-mentioned technical proposal, increase impeller intensity, extend impeller service life.

Preferably, motor uses alternating current generator.

Pass through above-mentioned technical proposal, structure is relatively easy, easy to maintain, is easy to carry out speed governing to blower fan by frequency converter.

Second purpose of the present utility model is to provide a kind of drying room, and feature is uniformly to heat.

Above-mentioned second technical purpose of the present utility model is achieved by technical scheme once：A kind of drying room, bag Include above-mentioned circulating fan.

Pass through above-mentioned technical proposal, realize in drying room and uniformly heat.

In summary, the utility model having the beneficial effect that compared with prior art：Circulating fan increase turbine worm passes Motivation structure, the system for needing vertical-transmission suitable for drying room etc., the scope of application is wider；Improved belt transmission mechanism, imitates transmission Rate is higher, avoids skidding, and improves operating efficiency, increases reliable transmission；Increase detection means, monitor fanman in real time and admire Condition, avoid motor and fan excessive damage；Increase motor lowering or hoisting gear, convenient to adjust belt tightness degree, increase belt transmission can By property, it is easy to repair；Circulating fan is used in drying room, realizes uniformly heating.

Brief description of the drawings

Fig. 1 is the structural representation of embodiment one；

Fig. 2 is the diagrammatic cross-section of embodiment one；

Fig. 3 is the structural representation of the driving pulley of embodiment one and belt；

Fig. 4 is the structural representation of the driving pulley of embodiment two；

Fig. 5 is enlarged drawing at the A of embodiment two.

Reference：1st, alternating current generator；2nd, line shaft；3rd, driving pulley；31st, teeth groove；32nd, air-vent；33rd, air vent； 4th, belt；41st, double wedge；5th, driven pulley；6th, scroll bar；7th, turbine；8th, fan；81st, rotating shaft；82nd, impeller；9th, fan housing；11st, motor Lifting pedestal；10th, access doors；101st, ring frame；102nd, newel；103rd, flabellum；12nd, vibration-detecting instrument one；13rd, vibration inspection Survey instrument two；14th, motor cover；15th, drying room；16th, upper interlayer.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment one：A kind of circulating fan, as shown in Fig. 2 including：Alternating current generator 1, motor lifting pedestal 11, transmission dress Put, fan 8, fan housing 9.Motor lifting pedestal 11 is fixed on the top of upper interlayer 16 of drying room 15, and alternating current generator 1 is arranged on motor liter Drop on base 11, alternating current generator 1 and motor lifting pedestal 11 are all in a square electric hood 14.Fan housing 9 is located at upper interlayer 16 Bottom.Motor is put 14 outside drying room 15, the influence that can effectively avoid the high temperature of drying room 15 from working alternating current generator 1.

As shown in Figures 2 and 3, transmission device include line shaft 2, driving pulley 3, belt 4, driven pulley 5, scroll bar 6 and The turbine 7 being engaged with scroll bar 6；Line shaft 2 is fixedly connected with the rotating shaft 81 of motor, is the extension of machine shaft 81；Line shaft 2 One end away from alternating current generator 1 is fixedly connected with the wheel shaft of driving pulley 3.Belt 4 is closed ring adhesive tape, and its surface is equidistant Be interval with double wedge 41, the periphery of driving pulley 3 is provided with some teeth groove 31 being meshed with the double wedge of belt 4 41, driven pulley 5 with The structure of driving pulley 3 is consistent.Belt 4 is set in the periphery of driving pulley 3 and driven pulley 5 simultaneously, makes driving pulley 3 and driven Belt wheel 5 links；The wheel shaft of driven pulley 5 is fixedly connected with being fixed on the scroll bar 6 of the side wall of upper interlayer 16, makes scroll bar 6 with driven The rotation of belt wheel 5 and rotate；Turbine 7 and the engagement connection of scroll bar 6.

As illustrated in fig. 1 and 2, fan 8 is inside fan housing 9, including rotating shaft 81 and impeller 82, impeller 82 are pack alloy Material；The top of fan housing 9 is provided with through hole；One end of the rotating shaft 81 of fan 8 is fixedly connected with turbine in transmission device 7, and the other end is worn It is fixedly connected after crossing the through hole of fan housing 9 with impeller 82.The opening of fan housing 9 has an access doors 10, for disperseing the air-out of fan 8 Amount, expand the wind-out range of fan 8.The inner side of access doors 10 is provided with the wire netting for being used for filtering dust.Access doors 10 include annular Housing 101 and newel 102, and 8 flabellums 103, every one end of flabellum 103 are fixedly connected with newel 102, the other end with Ring frame 101 is fixedly connected.The every thickness of flabellum 103 is between 4mm ~ 5mm.

Vibration-detecting instrument 1 is set on motor lifting pedestal 11, vibration-detecting instrument two is set in the rotating shaft 81 of fan 8 13.2 13 vibration datas being collected into of vibration-detecting instrument 1 and vibration-detecting instrument are sent to rear control room.To exchange In the case of the stable power-supplying of motor 1, the vibration values that vibration-detecting instrument 1 detects are in certain scope, beyond this model Enclose, you can be judged as that alternating current generator 1 has hidden danger or failure, maintenance personal can be on the scene and be repaired.It is normal in fan 8 In the case of work, the vibration values that vibration-detecting instrument 2 13 detects also deviation should occur, you can sentence in certain scope Break and hidden danger or failure be present for fan 8, maintenance personal should also be on the scene and be repaired.If the problem of detecting is transmission device The middle deformation of belt 4 loosens, and maintenance personal need to only adjust the height of motor lifting pedestal 11, suitably raise the position of alternating current generator 1 i.e. Can, avoid machine of tearing open and change time cost caused by belt 4.

Embodiment two：A kind of circulating fan, it is with the difference of embodiment one, as shown in Figures 4 and 5, driving pulley 3 Air-vent 32 is equipped with the bottom both ends of each teeth groove 31 of driven pulley 5, the both sides cell wall of the teeth groove 31 is equipped with insertion Cell wall outside and the air vent 33 of teeth groove 31.When belt 4 tells rotation, wind is blown into teeth groove by air vent 33 and air-vent 32 In 31, belt 4 is cooled down.With the transmission of driving pulley 3 and driven pulley 5, by belt 4 rub caused by heat and By fan 8 by turbine 7, scroll bar 6 transmit come heat distribute.Air vent 33 is obliquely installed, the air vent of driving pulley 3 33 tilt the cooling effect for so as to form circulating current, improving blowing to belt 4 towards the rotation direction of driving pulley 3 from inside to outside Fruit.The structure of driven pulley 5 is consistent with driving pulley 3.

Embodiment three, a kind of drying room：

A kind of circulating fan in drying room, including embodiment one or embodiment two.

Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model Enclose, the scope of protection of the utility model is determined by appended claim.

Claims (10)

1. a kind of circulating fan, it is characterized in that：Including motor（1）, motor lifting pedestal（11）, transmission device, fan（8）, wind Cover（9）, detection means；The motor（1）It is fixed on motor lifting pedestal（11）On；The transmission device includes：Line shaft （2）, driving pulley（3）, belt（4）, driven pulley（5）, scroll bar（6）With scroll bar（6）The turbine being engaged（7）；The power Axle（2）With motor（1）Drive connection；The driving pulley（3）It is fixed on the line shaft（2）On；The driven pulley（5）It is logical Cross belt（4）With the driving pulley（3）Drive connection；The belt（4）Equidistant double wedge is provided with for surface（41）Closing Endless rubber belt；The driving pulley（3）And driven pulley（5）Periphery be equipped with it is some with the belt（4）Double wedge （41）The teeth groove being meshed（31）；The scroll bar（6）One end and driven pulley（5）It is fixedly connected；The fan（8）Including rotating shaft （81）And impeller（82）；The fan（8）Rotating shaft（81）One end and transmission device in turbine（7）It is fixedly connected；The leaf Wheel（82）With fan（8）Rotating shaft（81）The other end connection；The fan housing（9）It is sheathed on impeller（82）Periphery, fan housing（9）Top Portion is provided with through hole；The fan（8）Rotating shaft（81）Through fan housing（9）The through hole at top；The fan housing（9）Opening be provided with into Mouth door（10）；The detection means includes：Vibration-detecting instrument one（12）With vibration-detecting instrument two（13）；The vibration-detecting instrument one （12）It is arranged at motor lifting pedestal（11）On；The vibration-detecting instrument two（13）It is arranged at fan（8）Rotating shaft（81）On.

2. a kind of circulating fan according to claim 1, it is characterized in that：The driving pulley（3）And driven pulley（5） Each teeth groove（31）Bottom both ends are equipped with air-vent（32）, the teeth groove（31）Both sides cell wall be equipped with insertion cell wall outside Side and teeth groove（31）Air vent（33）.

3. a kind of circulating fan according to claim 2, it is characterized in that：The air vent（33）For angling hole, the master Movable belt pulley（3）Air vent（33）From inside to outside towards driving pulley（3）Rotation direction tilt；The driven pulley（5）'s Air vent is from inside to outside towards driven pulley（5）Rotation direction tilt.

4. a kind of circulating fan according to claim 1, it is characterized in that：The access doors（10）Inner side, which is provided with, to be used to filter The wire netting of dust.

5. a kind of circulating fan according to claim 1, it is characterized in that：The access doors（10）Including：Framework and some Flabellum（103）；The framework includes ring frame（101）And newel（102）；The flabellum（103）One end and newel （102）It is fixedly connected；The other end and ring frame（101）It is fixedly connected.

6. a kind of circulating fan according to claim 5, it is characterized in that：The access doors（10）Flabellum（103）Thickness Degree scope is 4.0mm ~ 5.0mm.

7. a kind of circulating fan according to claim 5, it is characterized in that：The access doors（10）Flabellum（103）Number For 8.

8. a kind of circulating fan according to claim 1, it is characterized in that：The impeller（82）For pack alloy impeller.

9. a kind of circulating fan according to claim 1, it is characterized in that：The motor（1）Using alternating current generator.

10. a kind of drying room, it is characterized in that：Including a kind of circulating fan described in any one in claim 1 ~ 9.