CN207500317U - It is easy to hunt leak and avoid the hollow spindle of temperature distributing disproportionation - Google Patents
It is easy to hunt leak and avoid the hollow spindle of temperature distributing disproportionation Download PDFInfo
- Publication number
- CN207500317U CN207500317U CN201721469251.XU CN201721469251U CN207500317U CN 207500317 U CN207500317 U CN 207500317U CN 201721469251 U CN201721469251 U CN 201721469251U CN 207500317 U CN207500317 U CN 207500317U
- Authority
- CN
- China
- Prior art keywords
- hollow
- out parts
- easy
- gas barrier
- main shaft
- 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.)
- Active
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a kind of hollow spindles for being easy to hunt leak and avoid temperature distributing disproportionation, and including main shaft body, which is filled with inert gas in hollow-out parts, further includes：Mounting rod is fixed on the top and/or bottom of hollow-out parts；Gas barrier, multi-disc, multi-disc gas barrier is parallel and is uniformly arranged, and multi-disc gas barrier is fixed on mounting rod, and there are gap, inert gas can be flowed up and down the inner wall of gas barrier and hollow-out parts by gap.The hollow-out parts are cylindrical and are located at the center of main shaft body.The main shaft body is welded by multistage, and welding position includes hollow-out parts.The gas barrier is tapered, and the mounting rod is passed through from conical centre.The gas barrier taper is 13 ° 16 ° with horizontal included angle A；Gap between the edge of the taper and hollow-out parts inner wall is less than 2mm.The utility model has the advantageous effect that spindle processing materials are few, light-weight, main shaft thermal deformation is small, crackle easily detects.
Description
Technical field
The utility model is related to a kind of main shaft more particularly to a kind of hollow spindles, can be apparent suitable for a variety of operating temperatures
Improve the main shaft caused by Temperature Distribution to be bent.
Background technology
Live spindle is the important component of rotating machinery, and solid shafting can meet the needs of most of career field；
Compared to solid shafting, under conditions of stress license, hollow shaft is excellent with material, weight saving, critical speed raising etc. is saved
Point is also widely used；Whether hollow shaft is generally welded using multistage, so being opened for detection hollow shaft weld seam after longtime running
It splits or damaged, can generally be filled with search gas and facilitate leak detection；When in hot environment, if main shaft hollow section there are the temperature difference,
Then hollow section gas can generate convection current, if convection current is more disorderly, main shaft circumferential direction temperature may be caused uneven and generate thermal flexure change
Shape, so as to increase unbalance mass, when rotation, influences stable operation of unit, easy axis during shutdown.
Utility model content
The utility model is according to the above deficiency, provide a kind of hollow master for being easy to hunt leak and avoid temperature distributing disproportionation
Axis is provided with gas barrier in hollow spindle so that the regular convection current of gas, so as to fulfill saving material, loss of weight, improving main shaft
Critical speed, be easy to hunt leak and reduce main shaft thermal bending deformation unevenness caused by amount of deflection it is excessive.
The technical solution of the utility model is：
A kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation, including main shaft body, it is characterized in that, the main shaft
Ontology hollow out is filled with inert gas in hollow-out parts, further includes：
Mounting rod is fixed on the top and/or bottom of hollow-out parts；
Gas barrier, multi-disc, multi-disc gas barrier is parallel and is uniformly arranged, and multi-disc gas barrier is fixed on mounting rod,
There are gap, inert gas can be flowed up and down by gap for gas barrier and the inner wall of hollow-out parts.
During leak detection, using inert gas leak detector, leak detector is adjusted to the work shape only to being detected inert gas reaction
State, and hollow spindle is connected to, if main shaft has leakage hole, leak detector is reacted, so as to understand that leakage hole place and air leakage are big
It is small, usually hunt leak by main target of weld.
Preferably, the hollow-out parts are cylindrical and are located at the center of main shaft body.
Preferably, the main shaft body is welded by multistage, welding position includes hollow-out parts.
Preferably, the gas barrier is tapered, the mounting rod is passed through from conical centre.
Preferably, the gas barrier taper is 13 ° -16 ° with horizontal included angle A.
Preferably, the gap between the edge of the taper and hollow-out parts inner wall is less than 2mm.
Preferably, the distance between described two pieces of gas barriers are 150mm-450mm.
Preferably, the inert gas is helium.Its background noise is low, and molecular weight and the coefficient of viscosity are small, easily passes through leakage
Hole is spread, and its not etching apparatus, is common probe gas.
The hollow spindle is generator shaft.
The beneficial effects of the utility model are：
1st, the utility model can effectively reduce spindle processing materials, mitigate weight, improve its critical speed.
2nd, the utility model is convenient for being detected the crackle of main shaft hollow section weld seam or destruction.
3rd, the utility model effectively can control and guide the convection current of spindle cavity gas, inhibit main caused by convection current disorder
Axis circumferential direction excessive temperature differentials reduces main shaft thermal bending deformation.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Specific embodiment
The utility model is further described in conjunction with attached drawing：
As shown in the figure, a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation, including main shaft body 1, the master
1 hollow out of shaft body, is filled with inert gas in hollow-out parts, further includes：
Mounting rod 2 is fixed on the top and/or bottom of hollow-out parts；
Gas barrier 3, multi-disc, multi-disc gas barrier 3 is parallel and is uniformly arranged, and multi-disc gas barrier 3 is fixed on mounting rod 2
On, there are gap, inert gas can be flowed up and down the inner wall of gas barrier 3 and hollow-out parts by gap.
Hollow-out parts are cylindrical and are located at the center of main shaft body.
Main shaft body 1 is welded by multistage, and welding position includes hollow-out parts.
Gas barrier 3 is tapered, and mounting rod 2 is passed through from conical centre.
3 taper of gas barrier is 13 ° -16 ° with horizontal included angle A.
Gap between the edge of taper and hollow-out parts inner wall is less than 2mm.
The distance between two pieces of gas barriers 3 are 150mm-450mm.
Inert gas is helium.
Hollow spindle is generator shaft.
Claims (9)
1. a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation, including main shaft body, it is characterized in that, the main shaft sheet
Body hollow out is filled with inert gas in hollow-out parts, further includes：
Mounting rod is fixed on the top and/or bottom of hollow-out parts；
Gas barrier, multi-disc, multi-disc gas barrier is parallel and is uniformly arranged, and multi-disc gas barrier is fixed on mounting rod, gas
There are gap, inert gas can be flowed up and down by gap for partition board and the inner wall of hollow-out parts.
2. a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation as described in claim 1, it is characterized in that, it is described
Hollow-out parts are cylindrical and are located at the center of main shaft body.
3. a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation as described in claim 1, it is characterized in that, it is described
Main shaft body is welded by multistage, and welding position includes hollow-out parts.
4. a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation as described in claim 1, it is characterized in that, it is described
Gas barrier is tapered, and the mounting rod is passed through from conical centre.
5. a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation as described in claim 1, it is characterized in that, it is described
Gas barrier taper is 13 ° -16 ° with horizontal included angle A.
6. a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation as claimed in claim 5, it is characterized in that, it is described
Gap between the edge of taper and hollow-out parts inner wall is less than 2mm.
7. a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation as described in claim 1, it is characterized in that, it is described
The distance between two pieces of gas barriers are 150mm-450mm.
It is 8. special such as a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation of claim 1-7 any one of them
Sign is that the inert gas is helium.
It is 9. special such as a kind of hollow spindle for being easy to hunt leak and avoid temperature distributing disproportionation of claim 1-7 any one of them
Sign is that the hollow spindle is generator shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721469251.XU CN207500317U (en) | 2017-11-06 | 2017-11-06 | It is easy to hunt leak and avoid the hollow spindle of temperature distributing disproportionation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721469251.XU CN207500317U (en) | 2017-11-06 | 2017-11-06 | It is easy to hunt leak and avoid the hollow spindle of temperature distributing disproportionation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500317U true CN207500317U (en) | 2018-06-15 |
Family
ID=62503585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721469251.XU Active CN207500317U (en) | 2017-11-06 | 2017-11-06 | It is easy to hunt leak and avoid the hollow spindle of temperature distributing disproportionation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207500317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654480A (en) * | 2017-11-06 | 2018-02-02 | 浙江富春江水电设备有限公司 | It is easy to hunt leak and avoids the hollow spindle of temperature distributing disproportionation |
| CN109322900A (en) * | 2018-09-28 | 2019-02-12 | 雷中坤 | A kind of light-duty high-performance hole-bored axle from end to end and application method and product |
-
2017
- 2017-11-06 CN CN201721469251.XU patent/CN207500317U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654480A (en) * | 2017-11-06 | 2018-02-02 | 浙江富春江水电设备有限公司 | It is easy to hunt leak and avoids the hollow spindle of temperature distributing disproportionation |
| CN107654480B (en) * | 2017-11-06 | 2024-01-30 | 浙富控股集团股份有限公司 | Hollow main shaft easy to detect leakage and capable of avoiding uneven temperature distribution |
| CN109322900A (en) * | 2018-09-28 | 2019-02-12 | 雷中坤 | A kind of light-duty high-performance hole-bored axle from end to end and application method and product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207500317U (en) | It is easy to hunt leak and avoid the hollow spindle of temperature distributing disproportionation | |
| Shuguo et al. | Studies on dynamic characteristics of the joint in the aero-engine rotor system | |
| US9004765B1 (en) | Air foil bearing having pressure dam | |
| CN107121122A (en) | A kind of Wind turbines tower dynamic rate justifies analysis method | |
| WO2019038710A1 (en) | Sensor arrangement for sensing bending moments in an elongate component; elongate component; sensor system and wind turbine | |
| Lou et al. | Experimental and numerical investigation on the performance of fluid pivot journal bearing in one-sided floating state | |
| CN106441887A (en) | Method for measuring contact load between rotating disk bearing rolling body and outer ring raceway | |
| US10995728B2 (en) | Wind power generation system including a rotating pedestal and a wind power generation apparatus with a duct | |
| CN107654480A (en) | It is easy to hunt leak and avoids the hollow spindle of temperature distributing disproportionation | |
| CN107121118A (en) | A kind of Wind turbines tower static rigidity justifies analysis method | |
| CN206832176U (en) | Portable inner bore axiality detection device | |
| CN204082582U (en) | Centrifugal blower | |
| CN105444639A (en) | Main bearing installation hole position gauge | |
| CN206269732U (en) | One kind detection wind-power slip ring concentricity frock | |
| US8294313B2 (en) | Electric machine and method for determining the axial position of bearings for a rotor of the machine | |
| CN206846184U (en) | Vertical pipe internal X-ray the cannot-harm-detection device and frock | |
| CN106370241B (en) | Large-caliber low-temperature turbine flowmeter | |
| CN206500155U (en) | A kind of low temperature impact test box condenser pipe | |
| CN105691281B (en) | A kind of auto-bank unit bearing | |
| CN206568809U (en) | Welded type omni-directional wheel | |
| JP2014163268A (en) | Surface temperature detection system, bearing device, rotary machine, and surface temperature detection method | |
| CN204758534U (en) | Steam generator heat -transfer pipe eddy current inspection's rotary platform | |
| CN104595215B (en) | Axial-flow type main fan | |
| CN102735276A (en) | Floating mechanism for underground pipeline corrosion layer detecting instrument probe | |
| CN108644598A (en) | A kind of bearing grease injection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |