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Self-cooling type coupling

A coupling and self-cooling technology, applied in couplings, elastic couplings, clutches, etc., can solve the problems of large motor volume, reduced overall cost, unusable use, etc., to increase heat conduction distance and reduce axial heat conduction. , to expand the effect of air cooling

Inactive Publication Date: 2018-12-07
SHENZHEN YUANJIANG SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the high-temperature flue gas forced exhaust system, the exhaust fan works in a high-temperature environment for a long time, which puts forward very harsh conditions for the motor driving the exhaust fan: the drive shaft of the exhaust fan is generally metal, which is a good conductor of heat and can directly conduct high temperature To the inside of the motor, and the motor is driven by enameled wire windings. Its temperature resistance is limited. If it is not isolated, it will not be able to be used. For this reason, some motors used in high-temperature exhaust fans have done a lot of special treatment, resulting in a large volume and heavy weight. Heavy, the cost increases greatly, such as the motor used in the exhaust fan of the water heater
Is there a better way to isolate the high temperature of the exhaust fan? In this way, not only ordinary motors can be used, but also the overall cost can be greatly reduced. After searching for related technologies and patents, there is no solution for reference

Method used

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Experimental program
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Embodiment 1

[0014] Embodiment one: figure 1 There is a ring structure with 6 spokes in the middle, the outer ring is connected with 6 spokes, forming a symmetrical layout, the central area is divided into 2 parts: the 3 spaced spokes on the left are fixedly connected with the left center sleeve, as shown in the figure A-A , the 3 spokes on the right are fixedly connected with the center sleeve on the right, as shown in figure B-B.

[0015] Since the 6 spokes are completely symmetrical with respect to the axial direction of the center sleeve, it has a dynamic balance structure and can adapt to high-speed rotary motion.

[0016] The fixing of the driving shaft, the driven shaft and the center sleeve of the coupling can adopt fastening screws or other fixing methods.

[0017] The spokes and the center sleeve can adopt a welded structure, so that the coupling forms an integral single part.

[0018] The advantage of this solution is that the spoke structure can adopt sheet metal stamping par...

Embodiment 2

[0019] Embodiment two: figure 2 It is composed of three parts, part 1 is as in the A-A sectional view structure in the first embodiment, and the part 3 is as in the B-B sectional view structure in the first embodiment, and the parts 1 and 2 are connected by three symmetrically arranged connecting shafts 2 to form an overall connection device.

[0020] Part 1 and Part 2 are both symmetrical along the axis and have a dynamic balance structure, while Part 3 is arranged symmetrically along the axis, so the connector is symmetrical and dynamically balanced along the axis as a whole.

[0021] The fixing of the driving shaft, the driven shaft and the center sleeve of the coupling can adopt fastening screws or other fixing methods.

[0022] The advantage of this solution is that after the separation structure is adopted, the axial heat can only be conducted along a few connection points, and the connection points are in high-speed operation state, which can effectively carry out air...

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PUM

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Abstract

The invention relates to a self-cooling type coupling. A driving shaft and a driven shaft are each connected with shaft sleeves at two sides; the two shaft sleeves are axially separated, and are of arotational symmetric spoke-type structure in the radial direction; spokes are connected with a same outer ring, and thus, direct connection between the driving shaft and the driven shaft is convertedinto connection that the driving shaft and the driven shaft are connected after the driving shaft and the driven shaft are in transition to the outer ring in the radial direction, and a heat conduction path of the coupling is changed into a heat conduction path of conducting heat to the outer ring via the spokes from one of the two shaft sleeves and then conducting the heat to another adjacent spoke along the outer ring to the other shaft sleeve from a heat conduction path of conducting the heat in the axial direction that the two shaft sleeves directly communicate, and thus, the heat conduction path is greatly lengthened; meanwhile, as the spokes and the outer ring rotate along with a rotation axis, forced cooling can be performed by means of surrounding air; in order to further block heat conduction, the outer ring can be divided into two symmetric parts connected with the driving shaft and the driven shaft respectively, and a thermal insulation material is used at a joint of the twosymmetric parts to isolate the two symmetric parts; and in order to strengthen an air cooling effect, each spoke can be made into a shape of a fan blade, so that axial air convection is generated.

Description

technical field [0001] The invention relates to a coupling technology, in particular to a self-cooling coupling that can significantly reduce heat conduction between a drive shaft and a driven shaft. Background technique [0002] In the high-temperature flue gas forced exhaust system, the exhaust fan works in a high-temperature environment for a long time, which puts forward very harsh conditions for the motor driving the exhaust fan: the drive shaft of the exhaust fan is generally metal, which is a good conductor of heat and can directly conduct high temperature To the inside of the motor, and the motor is driven by enameled wire windings. Its temperature resistance is limited. If it is not isolated, it will not be able to be used. For this reason, some motors used in high-temperature exhaust fans have done a lot of special treatment, resulting in a large volume and heavy weight. Heavy, cost greatly increased, such as the motor used in the exhaust fan of the water heater. ...

Claims

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Application Information

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IPC IPC(8): F16D3/50
CPCF16D3/50F16D3/60F16D2300/0212
Inventor 刘元雨
Owner SHENZHEN YUANJIANG SCI & TECH CO LTD