CN205684217U - Main shaft device - Google Patents

Main shaft device Download PDF

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Publication number
CN205684217U
CN205684217U CN201620543004.9U CN201620543004U CN205684217U CN 205684217 U CN205684217 U CN 205684217U CN 201620543004 U CN201620543004 U CN 201620543004U CN 205684217 U CN205684217 U CN 205684217U
Authority
CN
China
Prior art keywords
mentioned
rotary shaft
housing
main shaft
turbo blade
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.)
Expired - Fee Related
Application number
CN201620543004.9U
Other languages
Chinese (zh)
Inventor
高桥淳
小林直也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
NSK Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NSK Ltd filed Critical NSK Ltd
Priority to CN201620543004.9U priority Critical patent/CN205684217U/en
Application granted granted Critical
Publication of CN205684217U publication Critical patent/CN205684217U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Electrostatic Spraying Apparatus (AREA)

Abstract

This utility model provides a kind of main shaft device, and it need not complicated processing just can carry out the rotation detection of rotary shaft, it is also possible to prevent getting rusty of turbo blade.This main shaft device is by making rotary shaft rotate drive multiple turbo blades injection gas, have: above-mentioned rotary shaft, this rotary shaft have hollow form axle, have discoid disc face and be integrally provided at above-mentioned axle one end flange part and with the circle-shaped multiple above-mentioned turbo blade being located on above-mentioned flange part;Housing, it receives this rotary shaft;And gas bearing, it is installed on the housing and by the supply of gas relative to above-mentioned housing in a non-contact manner by above-mentioned rotary shaft floating support, above-mentioned main shaft device is characterised by, is formed with black conversion coating in a part for the overall and above-mentioned disc face of above-mentioned turbo blade.

Description

Main shaft device
Technical field
This utility model relates to main shaft device, relates more specifically to can be preferably used in rotating spraying type electrostatic application Main shaft device in putting.
Background technology
In the past, in the case of the vehicle body of spray car, appliances etc., use transfer efficiency of coatings and the spray process of coating Good rotating spraying formula electrostatic spraying apparatus sprays.Main shaft dress in this rotating spraying type electrostatic spraying apparatus Putting and have air motor, this air motor has: motor shell, and it is formed with the axis hole axially extended, and at this axis hole Base end side be formed with turbine room;Rotary shaft, it is located in the axis hole of this motor shell, and tip side is dashed forward from this motor shell Go out;And turbine, it is located at the base end side of this rotary shaft and is accommodated in turbine room.It addition, the top of the rotary shaft at air motor End is provided with the rotating spraying nozzle of referred to as cup.And, rotating spraying type electrostatic spraying apparatus is by turbine supply height Pressure air, and make cup such as carry out high speed rotating with the rotation speed of 3000~150000rpm.When limit to spray equipment be sprayed-on Pay potential difference between thing, while to this rotation status cup supply coating time, coating under by micronized state from clock Shape cup discharges.Thus, rotating spraying type electrostatic spraying apparatus can be by micronized coating particle towards being sprayed-on thing spraying.Separately Outward, the axial rearward end at turbine has the rotation detection device (such as patent documentation 1) of the rotation detecting turbine.This rotation detects Device is the rotation detection device of optical profile type, as it is shown on figure 3, make the one of the end of the circular flange part of axial turbine rear end Part incised notch, and the region and non-reflective region making incident illumination reflect according to the rotating position phase of turbine is set, thus carry out The detection of position of rotation.
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2010-284637 Japanese Laid Open Patent
Utility model content
But, in the main shaft device for conventional rotating spraying type electrostatic spraying apparatus, need be used in rotation On the flange part of the turbine of detection, incised notch shape is set, becomes the miscellaneous main cause with cost increase of flow chart.It addition, by In making rotary shaft drive to turbine jet-stream wind, so the moisture in air can be attached on turbine to become get rusty main Reason.
In order to solve above-mentioned problem, this utility model provides a kind of main shaft device, by multiple turbo blades are sprayed gas Body and make rotary shaft rotate and drive, it has: above-mentioned rotary shaft, this rotary shaft has the axle of hollow form, has discoid circle Card and be integrally provided at above-mentioned axle one end flange part and with the circle-shaped multiple above-mentioned turbine being located on above-mentioned flange part Blade;Housing, it receives this rotary shaft;And gas bearing, its install on the housing and by the supply of gas relative to Above-mentioned housing is in a non-contact manner by above-mentioned rotary shaft floating support, and above-mentioned main shaft device is characterised by, at above-mentioned turbine It is formed with black conversion coating in a part for the overall and above-mentioned disc face of blade.
The effect of utility model
According to the main shaft device being used in rotating spraying type electrostatic spraying apparatus of the present utility model, it is not necessary to complicated processing Just can carry out the rotation detection of rotary shaft, it is also possible to prevent getting rusty of turbo blade.
Accompanying drawing explanation
Fig. 1 is the sectional view representing main shaft device of the present utility model.
Fig. 2 be the A representing Fig. 1 to regarding under the figure of rotary shaft.
Fig. 3 is the axonometric chart representing conventional turbine wheel.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the main shaft device 10 for rotating spraying type electrostatic spraying apparatus of present embodiment has Rotary shaft 1, this rotary shaft 1 has the axle 1a of hollow form, has discoid disc face and be integrally provided at one end of above-mentioned axle Flange part 1c and with the circle-shaped multiple turbo blade 1d being located on above-mentioned flange part.It addition, above-mentioned rotary shaft 1 is accommodated in In housing 2, and there is in above-mentioned housing 2 supply by gas and in a non-contact manner will relative to above-mentioned housing 2 The gas bearing 3 of above-mentioned rotary shaft 1 floating support.Whole of above-mentioned multiple turbo blades is formed with black conversion coating 1b, is sprayed to above-mentioned turbo blade by gas and makes above-mentioned rotary shaft rotate and drive, and prevent based on being contained in gas Getting rusty of the turbo blade that moisture is caused.It addition, in above-mentioned disc face, along the circumferencial direction of disc face in a part It is also formed with black conversion coating.Owing to the disc face of this flange part to be set to the reading face of optical pickocff, so by black The region that conversion coating is formed can calculate the position of rotation of above-mentioned rotary shaft as non-detection position.
According to the main shaft device being used in rotating spraying type electrostatic spraying apparatus of the present utility model, it is not necessary to complicated processing Just can carry out the rotation detection of rotary shaft, it is also possible to prevent getting rusty of turbo blade.

Claims (1)

1. a main shaft device, by multiple turbo blades injection gas is made rotary shaft rotate and driven, it has: described rotation Rotating shaft, this rotary shaft has the axle of hollow form, has discoid disc face and be integrally provided at the flange of one end of described axle Portion and with the circle-shaped multiple described turbo blade being located on described flange part;Housing, it receives this rotary shaft;With gas axle Holding, it is installed on the housing and by the supply of gas relative to described housing in a non-contact manner by described rotary shaft Floating support, described main shaft device is characterised by, is formed in a part for the overall and described disc face of described turbo blade There is black conversion coating.
CN201620543004.9U 2016-06-06 2016-06-06 Main shaft device Expired - Fee Related CN205684217U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620543004.9U CN205684217U (en) 2016-06-06 2016-06-06 Main shaft device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620543004.9U CN205684217U (en) 2016-06-06 2016-06-06 Main shaft device

Publications (1)

Publication Number Publication Date
CN205684217U true CN205684217U (en) 2016-11-16

Family

ID=57260963

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620543004.9U Expired - Fee Related CN205684217U (en) 2016-06-06 2016-06-06 Main shaft device

Country Status (1)

Country Link
CN (1) CN205684217U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110180693A (en) * 2019-07-24 2019-08-30 常州江苏大学工程技术研究院 A kind of induction electrostatic atomization spray head

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110180693A (en) * 2019-07-24 2019-08-30 常州江苏大学工程技术研究院 A kind of induction electrostatic atomization spray head
CN110180693B (en) * 2019-07-24 2019-10-22 常州江苏大学工程技术研究院 A kind of induction electrostatic atomization spray head
WO2021012778A1 (en) * 2019-07-24 2021-01-28 江苏大学 Inductive electrostatic atomization nozzle
GB2591955A (en) * 2019-07-24 2021-08-11 Univ Jiangsu Inductive electrostatic atomization nozzle
GB2591955B (en) * 2019-07-24 2022-02-23 Univ Jiangsu Inductive electrostatic atomization nozzle
US11278917B2 (en) 2019-07-24 2022-03-22 Jiangsu University Inductive electrostatic atomization nozzle

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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

Granted publication date: 20161116

Termination date: 20200606

CF01 Termination of patent right due to non-payment of annual fee