CN108035778A - One kind pressing bearing-free sealing head - Google Patents
One kind pressing bearing-free sealing head Download PDFInfo
- Publication number
- CN108035778A CN108035778A CN201711440223.XA CN201711440223A CN108035778A CN 108035778 A CN108035778 A CN 108035778A CN 201711440223 A CN201711440223 A CN 201711440223A CN 108035778 A CN108035778 A CN 108035778A
- Authority
- CN
- China
- Prior art keywords
- pneumatic capstan
- pneumatic
- capstan
- raceway
- ejector sleeve
- 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.)
- Granted
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 title claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 210000003128 head Anatomy 0.000 description 16
- 238000000034 method Methods 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
One kind pressing bearing-free sealing head, the handpiece case of pneumatic capstan chamber is equipped with including middle part, pneumatic capstan chamber side is equipped with inlet channel and outlet passageway, lid is located at the head cover of handpiece case upper end, is arranged on the pneumatic capstan of pneumatic capstan intracavitary, and pneumatic capstan is radially provided with through hole, pneumatic capstan includes shaft core and impeller, pneumatic capstan upper end and lower end side are all provided with the inclined raceway in oriented both sides, and pneumatic capstan chamber lower end, which is sunk, lower storage tank, and lower accommodating groove sidewall is equipped with the raceway for the setting that is inclined upwardly；Top cover face is equipped with upward concave upper storage tank, upper accommodating groove sidewall is also equipped with raceway, the bearing of the present invention is wholely set with shell, assembling installation clearance issues are solved after tight fit, greatly reduce Production of bearing cost, excessive air-flow will not cause Bearing inner greasing substance to take away, and solve the problems, such as that air-flow is excessive, and actively brake prevents resorption so that turbine stops operating.
Description
Technical field
The present invention relates to the head of pneumatic turbine, especially a kind of pressing bearing-free sealing head.
Background technology
Pneumatic turbine internal pressure is big, is easy to using current existing bearing in long-term operation process by internal lubrication
Material washes out, and reduces bearing service life.The small production difficulty of pneumatic turbine special bearing is big, assembling inconvenience, of high cost,
Close-fitting is needed to install in installation process, it is abnormal that tiny deviation can cause bearing to rotate；In pneumatic turbine operation process
It is internal it is unavoidable have that air-flow is excessive, bearing faces air-flow directly to the bearing used at present when in use, thus can cause to lubricate
Material is directly brought away from, into oral cavity.
On the other hand, pneumatic turbine production cost remains high, wherein it is excessive to be primarily due to bearing cost, using quality
The bearing of difference is easy to wear in rotation process, and rotating speed is not high, using causing high effort for.In addition outside bearing inner race independent at present
The making of circle is, it is necessary to polish raceway in the middle part of bearing outer ring inner wall and in the middle part of interior ring outer wall, required precision is high, and bistrique needs
Often replace, significantly increase production cost.
It there is problems at present：When stopping using, movement turbine can be rotated further pneumatic turbine because of inertia, from
And cause resorption；Pneumatic turbine air-flow is excessive.Lack a kind of multiple functional, the air impeller that performance is stablized on the market at present
Machine.
The content of the invention
In order to overcome the above-mentioned deficiency of the prior art, the present invention provides a kind of pressing bearing-free sealing head.
The present invention solve its technical problem technical solution be：One kind pressing bearing-free sealing head, including middle part are equipped with
The handpiece case of pneumatic capstan chamber, the pneumatic capstan chamber side are equipped with inlet channel and outlet passageway, and lid is located on handpiece case
The head cover at end, is arranged on the pneumatic capstan of the pneumatic capstan intracavitary, and the pneumatic capstan is radially provided with through hole, and the pneumatic capstan includes axis
Core and impeller, the pneumatic capstan upper end and lower end side are all provided with the inclined raceway in oriented both sides, under the pneumatic capstan chamber lower end
Falling into has lower storage tank, and the lower accommodating groove sidewall is equipped with the raceway for the setting that is inclined upwardly；
The top cover face is equipped with upward concave upper storage tank, and the upper accommodating groove sidewall is also equipped with raceway, described pneumatic
Wheel is arranged on the pneumatic capstan intracavitary, and ball is equipped between the raceway and impeller upper end raceway of the upper storage tank；
Ball is also equipped between the raceway and impeller lower end raceway of the lower storage tank；
Ball retainer is equipped between the ball, the ball retainer one side offers the ball grooves for accommodating ball,
The ball grooves of the ball retainer are arranged oppositely；
The pneumatic capstan includes upper pneumatic capstan and lower pneumatic capstan, and ejector sleeve chamber is equipped between the upper pneumatic capstan and lower pneumatic capstan, also
Including ejector sleeve and gripping sleeve, the ejector sleeve is set by through hole through the upper pneumatic wheel radial, and the ejector sleeve lower end outer wall is in
Taper, the gripping sleeve upper end are equipped with the clamping part for clamping trolley pin, and the clamping part upper end is in flare openings, described
Clamping part side wall is equipped with radially slotted, and ejector sleeve lower end top is located at the clamping part flare openings；
Further include by gland, it is described to be arranged on by gland on the head cover.
Preferably, the ball grooves on the ball retainer are equipped with oil storage tank.
Preferably, further including shim, the through hole passed through for the pneumatic capstan shaft core, institute are equipped with the middle part of the shim
The through hole side for stating shim is equipped with flange collar, and the shim flange collar is down-set convex in pneumatic capstan bottom of chamber portion, the shim
Circle is set up at the top of pneumatic capstan.
Preferably, the through-hole side wall of the lower pneumatic capstan is equipped with the fluting for setting gripping sleeve lower end, the gripping sleeve
Pipe close-fitting is in the fluting.
Preferably, the ejector sleeve lower end protrusion, the ejector sleeve lower end protrusion top surface top is posted on the ejector sleeve chamber top surface.
Preferably, lower end allows car pin to insert in the middle part of the ejector sleeve, the ejector sleeve upper inner diameter is shunk, on the ejector sleeve
Thimble is allowed by the way that the ejector sleeve upper end clamping part side wall is equipped with the radial clearance for allowing clamping part to open in portion.
Preferably, the head cover and pressing gasket braking sealing pad being equipped between gland, the gasket is flexible material
Matter；
The gland of pressing is arch, and the downwardly convex press section being equipped with for top pressure pressing lever in lower face middle part is described to press gland side
The fixed part that be located in downwards on the head cover along being equipped with.
Preferably, it is fixed on the outside of the gasket between the fixed cover and head cover, the gasket upper surface
Gradually it is sunk by outside to center, thickness is gradually reduced, and gasket outer upper end is bonded with fixed cover to prevent from operating
Air pressure inside is excessive in journey causes gasket deforming displacement, and when stopping operating since air pressure stops suddenly, turbine mass rotates
Internal pressure is caused to be less than external pressure, gasket contacts fitting with turbine wheel shaft to lower recess, realizes and actively brakes.
The beneficial effects of the present invention are：Bearing is wholely set with shell, and assembling installation gap is solved after tight fit and is asked
Topic, greatly reduces Production of bearing cost, and excessive air-flow will not cause Bearing inner greasing substance to take away, it is excessive to solve air-flow
Problem, actively brake prevent resorption so that turbine stops operating.
Brief description of the drawings
Fig. 1 is explosive view of the present invention.
Fig. 2 is sectional view of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, 2：One kind pressing bearing-free sealing head, including middle part are equipped with the handpiece case 21 of pneumatic capstan chamber 1,
1 side of pneumatic capstan chamber is equipped with inlet channel and outlet passageway, and lid is located at the head cover 2 of handpiece case upper end, is arranged on institute
The pneumatic capstan of pneumatic capstan intracavitary is stated, the pneumatic capstan is radially provided with through hole 3, and the pneumatic capstan includes shaft core 4 and impeller 5, described
Pneumatic capstan upper end and lower end side are all provided with the inclined raceway 6 in oriented both sides, and the pneumatic capstan chamber lower end sink and has lower storage tank
7, lower 7 side wall of storage tank is equipped with the raceway 6 for the setting that is inclined upwardly；
2 lower face of head cover is equipped with upward concave upper storage tank 8, and upper 8 side wall of storage tank is also equipped with raceway 6, described
Pneumatic capstan is arranged on the pneumatic capstan intracavitary, and ball is equipped between the raceway and impeller upper end raceway of the upper storage tank；
Ball is also equipped between the raceway and impeller lower end raceway of the lower storage tank；
Ball retainer 9 is equipped between the ball, 9 one side of ball retainer offers the ball for accommodating ball
Groove, the ball grooves of the ball retainer are arranged oppositely；
The pneumatic capstan includes upper pneumatic capstan 10 and lower pneumatic capstan 11, is equipped with and pushes away between the upper pneumatic capstan 10 and lower pneumatic capstan 11
Tube chamber 12, further includes ejector sleeve 13 and gripping sleeve 14, and the ejector sleeve 12 is radially set by through hole through the upper pneumatic capstan 10, institute
State that 13 lower end outer wall of ejector sleeve is tapered, 14 upper end of gripping sleeve is equipped with the clamping part 15 for clamping trolley pin, the clamping
15 upper end of portion is in flare openings, and 15 side wall of clamping part is equipped with radially slotted 16, and 13 lower end of the ejector sleeve top is located at described
At clamping part flare openings；
Further include by gland 17, it is described to be arranged on by gland 17 on the head cover 2.
In the present embodiment, the ball grooves on the ball retainer are equipped with oil storage tank.
In the present embodiment, shim 18 is further included, the middle part of shim 18 is equipped with what is passed through for the pneumatic capstan shaft core
Through hole, the through hole side of the shim are equipped with flange collar 19, and the shim flange collar is down-set in pneumatic capstan bottom of chamber portion, described
Shim flange collar is set up at the top of pneumatic capstan.
In the present embodiment, the through-hole side wall of the lower pneumatic capstan 11 is equipped with the fluting for setting gripping sleeve lower end, the folder
Fixed pipe close-fitting is in the fluting.
In the present embodiment, 13 lower end of the ejector sleeve protrusion, the ejector sleeve lower end protrusion top surface top is posted on the ejector sleeve chamber
Top surface.
In the present embodiment, lower end allows car pin to insert in the middle part of the ejector sleeve, and the ejector sleeve upper inner diameter is shunk, the ejector sleeve
Thimble is allowed by the way that the ejector sleeve upper end clamping part side wall is equipped with the radial clearance for allowing clamping part to open in top.
In the present embodiment, the head cover 2 and press and be equipped with gasket braking sealing pad 20 between gland 17, the gasket is
Flexible material；
It is arch that gland is pressed described in the present embodiment, and lower face middle part is downwardly convex to be equipped with the press section for being used for top pressure pressing lever, institute
State the fixed part that be located in downwards on the head cover by 17 side of gland along being equipped with.
Claims (8)
1. one kind pressing bearing-freeSealingHead, including middle part are equipped with the handpiece case of pneumatic capstan chamber, the pneumatic capstan chamber side
Equipped with inlet channel and outlet passageway, lid is located at the head cover of handpiece case upper end, is arranged on the pneumatic of the pneumatic capstan intracavitary
Wheel, the pneumatic capstan are radially provided with through hole, it is characterised in that：The pneumatic capstan includes shaft core and impeller, and the bearing is located at gas
Driving wheel upper end and lower end side are all provided with the inclined raceway in oriented both sides, and the pneumatic capstan chamber lower end, which is sunk, lower storage tank, institute
State the raceway that lower accommodating groove sidewall is equipped with the setting that is inclined upwardly；
The top cover face is equipped with upward concave upper storage tank, and the upper accommodating groove sidewall is also equipped with raceway, described pneumatic
Wheel is arranged on the pneumatic capstan intracavitary, and ball is equipped between the raceway and impeller upper end raceway of the upper storage tank；
Ball is also equipped between the raceway and impeller lower end raceway of the lower storage tank；
Ball retainer is equipped between the ball, the ball retainer one side offers the ball grooves for accommodating ball,
The ball grooves of the ball retainer are arranged oppositely；
The pneumatic capstan includes upper pneumatic capstan and lower pneumatic capstan, and ejector sleeve chamber is equipped between the upper pneumatic capstan and lower pneumatic capstan, also
Including ejector sleeve and gripping sleeve, the ejector sleeve is set by through hole through the upper pneumatic wheel radial, and the ejector sleeve lower end outer wall is in
Taper, the gripping sleeve upper end are equipped with the clamping part for clamping trolley pin, and the clamping part upper end is in flare openings, described
Clamping part side wall is equipped with radially slotted, and ejector sleeve lower end top is located at the clamping part flare openings；
Further include by gland, it is described to be arranged on by gland on the head cover.
2. pressing bearing-free sealing head as claimed in claim 1, it is characterised in that：Ball grooves on the ball retainer
It is equipped with oil storage tank.
3. pressing bearing-free sealing head as claimed in claim 1, it is characterised in that：Further include shim, the shim
Middle part is equipped with the through hole passed through for the pneumatic capstan shaft core, and the through hole side of the shim is equipped with flange collar, and the shim is convex
Enclose and down-set set up in pneumatic capstan bottom of chamber portion, the shim flange collar at the top of pneumatic capstan.
4. pressing bearing-free sealing head as claimed in claim 1, it is characterised in that：The through-hole side wall of the lower pneumatic capstan is set
There is the fluting that gripping sleeve lower end is set, the gripping sleeve close-fitting is in the fluting.
5. pressing bearing-free sealing head as claimed in claim 1, it is characterised in that：The ejector sleeve lower end protrusion, it is described to push away
Pipe lower end protrusion top surface top is posted on the ejector sleeve chamber top surface.
6. pressing bearing-free sealing head as claimed in claim 1, it is characterised in that：Car pin is allowed in lower end in the middle part of the ejector sleeve
Insert, the ejector sleeve upper inner diameter is shunk, and thimble is allowed by the way that the ejector sleeve upper end clamping part side wall is equipped with the ejector sleeve top
The radial clearance for allowing clamping part to open.
7. pressing bearing-free sealing head as claimed in claim 1, it is characterised in that：The head cover and it is equipped with by between gland
Gasket braking sealing pad, the gasket are flexible material；
The gland of pressing is arch, and the downwardly convex press section being equipped with for top pressure pressing lever in lower face middle part is described to press gland side
The fixed part that be located in downwards on the head cover along being equipped with.
8. pressing bearing-free sealing head as claimed in claim 7, it is characterised in that：Institute is fixed on the outside of the gasket
State between fixed cover and head cover, the gasket upper surface is gradually sunk by outside to center, and thickness is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440223.XA CN108035778B (en) | 2017-12-27 | 2017-12-27 | Pressing bearingless sealing machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440223.XA CN108035778B (en) | 2017-12-27 | 2017-12-27 | Pressing bearingless sealing machine head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108035778A true CN108035778A (en) | 2018-05-15 |
| CN108035778B CN108035778B (en) | 2023-12-26 |
Family
ID=62097736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711440223.XA Active CN108035778B (en) | 2017-12-27 | 2017-12-27 | Pressing bearingless sealing machine head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108035778B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109512532A (en) * | 2018-12-17 | 2019-03-26 | 宁波和平鸽口腔医疗器材有限公司 | Dental handpiece presses head |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201105A (en) * | 1997-05-30 | 1998-12-09 | 石川岛播磨重工业株式会社 | Thrust bearing structure for turbocharger |
| JP2008232251A (en) * | 2007-03-20 | 2008-10-02 | Jtekt Corp | Ball bearing |
| US20110255955A1 (en) * | 2010-04-15 | 2011-10-20 | Christian Holzschuh | Charging device |
| CN105545944A (en) * | 2016-03-07 | 2016-05-04 | 洛阳轴研科技股份有限公司 | Large double-direction thrust ball bearing with airtightness and assembling method of large double-direction thrust ball bearing |
| CN105649687A (en) * | 2016-03-24 | 2016-06-08 | 中国北方发动机研究所(天津) | Thermal insulation structure for turbocharger |
| CN106763155A (en) * | 2016-12-30 | 2017-05-31 | 宁波和平鸽口腔医疗器材有限公司 | Miniature high-speed is without inner ring ball bearing and its assembling device |
-
2017
- 2017-12-27 CN CN201711440223.XA patent/CN108035778B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201105A (en) * | 1997-05-30 | 1998-12-09 | 石川岛播磨重工业株式会社 | Thrust bearing structure for turbocharger |
| JP2008232251A (en) * | 2007-03-20 | 2008-10-02 | Jtekt Corp | Ball bearing |
| US20110255955A1 (en) * | 2010-04-15 | 2011-10-20 | Christian Holzschuh | Charging device |
| CN105545944A (en) * | 2016-03-07 | 2016-05-04 | 洛阳轴研科技股份有限公司 | Large double-direction thrust ball bearing with airtightness and assembling method of large double-direction thrust ball bearing |
| CN105649687A (en) * | 2016-03-24 | 2016-06-08 | 中国北方发动机研究所(天津) | Thermal insulation structure for turbocharger |
| CN106763155A (en) * | 2016-12-30 | 2017-05-31 | 宁波和平鸽口腔医疗器材有限公司 | Miniature high-speed is without inner ring ball bearing and its assembling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109512532A (en) * | 2018-12-17 | 2019-03-26 | 宁波和平鸽口腔医疗器材有限公司 | Dental handpiece presses head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108035778B (en) | 2023-12-26 |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231201 Address after: 224021 No. 6, Qinxin Road, Qinnan Town, Yandu District, Yancheng City, Jiangsu Province Applicant after: Jiangsu Daming Bioengineering Equipment Co.,Ltd. Address before: No. 1800 Xiaolin Avenue, Xiaolin Town, Cixi City, Ningbo City, Zhejiang Province, 315321 Applicant before: ZHEJIANG YIHIXING MEDICAL DEVICES CO.,LTD. |
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| GR01 | Patent grant |