CN203161876U - Shaft coupler of axial-flow fan - Google Patents
Shaft coupler of axial-flow fan Download PDFInfo
- Publication number
- CN203161876U CN203161876U CN 201320171681 CN201320171681U CN203161876U CN 203161876 U CN203161876 U CN 203161876U CN 201320171681 CN201320171681 CN 201320171681 CN 201320171681 U CN201320171681 U CN 201320171681U CN 203161876 U CN203161876 U CN 203161876U
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- elastic
- fan
- main
- pin
- shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a shaft coupler of an axial-flow fan. The shaft coupler comprises a center adjustment disc, a center adjustment disc bearing, an elastic cylinder pin, a spring ring and a distance sleeve, wherein the outer diameter of the elastic ring is phi 88 mm; the length of the distance sleeve is 20 mm; the length of the cylinder pin is 205 mm; a pin body of the cylinder pin is coated with an elastic layer; and the elastic layer adopts reinforced nylon and is formed on the pin body by pressure casting. Larger axial displacement can be compensated and micro radial displacement and angular displacement are allowed. Under the circumstance that a ground base sinks and the levelness and the coaxiality of a main shaft and a transmission shaft are changed in a main ventilation machine room, the temperature of a main bearing of the fan is controlled to be not excessively high, the fan runs normally and the safety running requirement of the complete machine is met.
Description
Technical field
The utility model belongs to the Pumps ﹠ Fans technical field, relates to a kind of coupling of axial fan.
Background technique
In order to water down and get rid of harmful gas and the dust of down-hole, for each tunnel, down-hole and adopt, dig working surface and provide fresh distinguished and admirable, guarantee that the underground work personnel have sufficient amount, satisfactory air for breathing, guarantee underground work personnel's personal safety, improve the underground work environment, in Coal Production, must supply with a large amount of fresh airs incessantly to the down-hole.
The colliery is exactly equipment to the delivered downhole air with ventilator, 1t coal is whenever adopted in the normal conditions down-hole will be to delivered downhole 4～6t fresh air, the power consumption of mine main ventilator on average accounts for 8%～15% of colliery power consumption, it is the indispensable safety installation that ventilate under the coal mine, also is the key equipment of mine.When the selection design of ventilation equipment, must give enough attention to its reliability.
Ventilator is the mechanical energy that relies on input, improves supply gas the side by side machinery of body of gas pressure, and it is a kind of driven fluid machinery.Ventilator is widely used in ventilation, dust discharge and the cooling of factory, mine, tunnel, cooling tower, vehicle, boats and ships and building, the ventilation of boiler and industrial furnace and air inducing.
During axial fan work, the power engine drives impeller is rotated in cylindrical casing, and gas enters from slip ring, obtains energy by impeller, improves pressure and speed, discharges vertically then.
The 22332 type double-row self-aligning roller bearings and three that the main bearing of KZS-№ 28 profile shaft streaming ventilators adopts two covers to play supporting role have overlapped 7524 type tapered roller bearings of balancing axial thrust; Main shaft all adopts φ 500 elastic cylindrical pin formula coupling to connect with transmission shaft, transmission shaft with motor shaft.
Because the influence in goaf, cause main fan premises base to sink, the levelness of main fan main shaft and transmission shaft, coaxality often change and exceed standard, cause vibration big, the main bearing temperature is too high, safe handling to main fan produces greatly threat, thereby the safety in production of full mine is exerted heavy pressures on.
Summary of the invention
The purpose of this utility model is elastic cylindrical pin and the elastic ring by the elastic cylindrical pin formula coupling that improves ventilator, realizes the deviation of compensation radial displacement automatically, satisfies the demand of complete machine safe operation.
A kind of coupling of axial fan comprises aligning dish, aligning dish bearing, elastic cylindrical pin, elastic ring, distance cover, and the external diameter of described elastic ring is φ 88mm, and the length of described distance cover is 20mm, and the length of described straight pin is 205mm; The shank of described straight pin coats elasitic layer outward; Described elasitic layer adopts reinforced nylon, by die casting on shank.
The beneficial effects of the utility model are the elastic cylindrical pin formula coupling after improving compensates two between centers with the distortion of rubber pin relative displacement, shock absorbing and absorption vibrations, can the big axial displacement of compensate for slower, allow radial displacement and the angular displacement of trace.Exist under the levelness of setting of ground, main shaft and transmission shaft, the situation that coaxality changes at the main ventilation machine room, it is not too high to make blower fan main shaft hold temperature, and blower fan runs well, and satisfies the demand of complete machine safe operation.
Fragile for overcoming elastic ring, and the moment smaller defect of transmitting, preferably the shank with the coupling straight pin coats elasitic layer outward.
Be effectively to increase carry-over moment, have the function of buffering and vibration damping simultaneously, effectively compensate so that the contraposition shift-in is capable, reduce the wearing and tearing of elastic ring, elasitic layer preferred enhanced nylon, by die casting on shank.
Description of drawings
Fig. 1 is elastic coupling flexible coupling figure of the present utility model
1-is apart from cover; The 2-elastic ring; The 3-elastic cylindrical pin; 4-aligning dish; 5-aligning dish bearing
Fig. 2 is elasticity loop graph of the present utility model
Embodiment
The 22332 type double-row self-aligning roller bearings and three that the main bearing of KZS-№ 28 profile shaft streaming ventilators adopts two covers to play supporting role have overlapped 7524 type tapered roller bearings of balancing axial thrust; Main shaft all adopts φ 500 elastic cylindrical pin formula coupling to connect with transmission shaft, transmission shaft with motor shaft.Elastic cylindrical pin formula coupling is relative displacement, shock absorbing and the absorption vibration that compensates two between centers with the distortion of rubber pin, and this coupling can the big axial displacement of compensate for slower, allows radial displacement and the angular displacement of trace.The coupling of blower fan producer design has added one group of aligning dish and selfaligning bearing in the middle of two half-couplings, with the deviation of compensation radial displacement.Along with after the main ventilation machine room exists levelness, the coaxality of setting of ground, main shaft and transmission shaft to change, the connection situation of coupling can not adapt to the safe operation requirement of complete machine, and it is too high to cause blower fan main shaft to hold temperature.Be the normal operation of assurance main fan, elastic cylindrical pin, elastic ring, the distance of KZS-№ 28 axial fan elastic cylindrical pin formula coupling overlapped carry out technical innovation.
With original elastic cylindrical pin shorten length 1mm, the pin external diameter strengthens 0.20mm, makes the connection degree of tightness appropriateness of elastic coupling flexible coupling.
Former elastic ring external diameter is strengthened 2mm, and other size constancies have improved the connection performance of coupling.
By to the axially measuring and calculating of the amount of scurrying of main fan, original distance cover is shortened 1mm, guaranteed the free movement that elastic coupling flexible coupling is in operation to be needed.
Fragile for overcoming elastic ring, and the moment smaller defect of transmitting, elastic cylindrical pin has been carried out further optimization, outside the shank of straight pin, coat elasitic layer.
The preferred elastomeric layer is selected reinforced nylon, by die casting on shank.Can effectively increase carry-over moment, have buffering and the function of vibration damping simultaneously, can also the contraposition shift-in is capable effectively compensate, reduce the wearing and tearing of elastic ring.
Claims (1)
1. the coupling of an axial fan, comprise aligning dish, aligning dish bearing, elastic cylindrical pin, elastic ring, distance cover, it is characterized in that: the external diameter of described elastic ring is φ 88mm, the length of described distance cover is 20mm, and the length of described straight pin is 205mm; The shank of described straight pin coats elasitic layer outward; Described elasitic layer adopts reinforced nylon, by die casting on shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320171681 CN203161876U (en) | 2013-03-24 | 2013-03-24 | Shaft coupler of axial-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320171681 CN203161876U (en) | 2013-03-24 | 2013-03-24 | Shaft coupler of axial-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161876U true CN203161876U (en) | 2013-08-28 |
Family
ID=49023062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320171681 Expired - Fee Related CN203161876U (en) | 2013-03-24 | 2013-03-24 | Shaft coupler of axial-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005721A (en) * | 2019-02-26 | 2019-07-12 | 荣基工业科技（江苏）有限公司 | A kind of flexible coupling of Wind turbines |
-
2013
- 2013-03-24 CN CN 201320171681 patent/CN203161876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005721A (en) * | 2019-02-26 | 2019-07-12 | 荣基工业科技（江苏）有限公司 | A kind of flexible coupling of Wind turbines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160324 |