CN108036058A - A kind of contactless fluid-tight structure of mechanical main shaft - Google Patents
A kind of contactless fluid-tight structure of mechanical main shaft Download PDFInfo
- Publication number
- CN108036058A CN108036058A CN201711479858.0A CN201711479858A CN108036058A CN 108036058 A CN108036058 A CN 108036058A CN 201711479858 A CN201711479858 A CN 201711479858A CN 108036058 A CN108036058 A CN 108036058A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- cut
- groove
- diversion trench
- liquid
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000002826 coolant Substances 0.000 abstract description 20
- 239000000428 dust Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/54—Other sealings for rotating shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a kind of contactless fluid-tight structure of mechanical main shaft, the sealing structure includes end cap, liquid-proof lid, it is characterized in that, the end cap, liquid-proof lid are sequentially arranged on main shaft, the end cap includes interior step and outer step, interior step periphery is equipped with diversion trench one, outer step inner circumferential is equipped with diversion trench two, interior step is higher than outer step, cut-off groove one is equipped with the inside of the liquid-proof lid periphery, cut-off groove two is equipped with the outside of inner circumferential, cut-off groove one, cut-off groove two are engaged with diversion trench one, diversion trench two.The liquid-proof lid is installed on main shaft by fixing piece, and dustproof cover is fixed on end cap by fixing piece.Sealing structure in the present invention is provided with diversion trench and cut-off groove, from the coolant that gap enters by the choked flow of cut-off groove and the guiding function of diversion trench, coolant cannot be introduced into inside machine shaft, so as to ensure that main shaft precision and the service life of bearing, be adaptable to machine tool mechanical field.
Description
Technical field
The invention belongs to machinery field, and in particular to a kind of mechanical main shaft fluid-tight structure.
Background technology
Common rotating shaft class is mechanical (such as power unit of machine tool), during the work time, due to continual workpieces processing, machine
Bed cutter heating is too fast, thus needs to take heat conduction or cooling device fast cooling.
At present, a part of enterprise using it is synchronous to working position ceaselessly using liquid-jet device come hydrojet, to reach instant
Work the purpose cooled down immediately.But when in the course of work to working position spray cooling liquid, liquid flower flashes, coolant be easy into
Enter in the bearing of the power head of non-contacting sealing structure, once and bearing feed liquor, main shaft precision can decline therewith, also easily
Cause bearing damage, so that the defects of causing rotating shaft class mechanical power head short life, it is even more impossible to ensure the standard of workpiece to be machined
True precision.
And as by the way of sealing ring, sealing ring contact type sealing structure, frictional resistance is big, quick abrasion, makes for a long time
With the situation that leakage occurs, the problem of causing rotating shaft class mechanical power head short life.
The content of the invention
The present invention provides a kind of contactless fluid-tight structure of mechanical main shaft, to solve rotating shaft class machinery cooling procedure
The problem of coolant enters inside main shaft, and service life is short.
To solve the above problems, the technical scheme is that：A kind of contactless fluid-tight structure of mechanical main shaft, institute
Stating sealing structure includes end cap, liquid-proof lid, it is characterised in that the end cap, liquid-proof lid are sequentially arranged on main shaft, the end cap
Including interior step and outer step, interior step periphery is equipped with diversion trench one, and outer step inner circumferential is equipped with diversion trench two, and interior step is higher than outer
Step, is equipped with cut-off groove one on the inside of the liquid-proof lid periphery, is equipped with cut-off groove two on the outside of inner circumferential, cut-off groove one, cut-off groove two and
Diversion trench one, diversion trench two are engaged.Cut-off groove and coordinating for diversion trench can block to being played into the coolant in sealing structure
Cut and guide functions, further coolant can be prevented to enter main shaft, so as to ensure that the normal service life of main shaft.
The liquid-proof lid is installed on main shaft by fixing piece, and dustproof cover is fixed on end cap by fixing piece.
Preferably, the liquid-proof lid is installed on main shaft by screw.The dustproof cover is installed on end cap by screw.
There are gap for cooperation between the dustproof cover and main shaft.
Diversion outlet is equipped with below the dustproof cover.
The liquid-proof portion of covering covers dustproof cover, and the dustproof cover is fixed on end cap by fixing piece.Due to processing
During can produce flying dust, thus set dustproof cover to prevent flying dust from entering in main shaft.
Preferably, the left-hand notch edge of cut-off groove one is located at below the notch of diversion trench one；Cut-off groove one and diversion trench
One notch is oppositely arranged；
The left-hand notch edge of cut-off groove two is located above the notch of diversion trench two；The notch of cut-off groove two and diversion trench two
It is oppositely arranged.
There are the first gap for cooperation between the dustproof cover and end cap.
There are the second gap for cooperation between the dustproof cover and liquid-proof lid.
The dustproof cover is equipped with diversion outlet.Diversion outlet is easy to discharge the coolant in diversion trench.
The liquid-proof lid passes through screw thread and principal shaft locking.
End cap is installed on babinet by screw,
The outer end side that babinet is arranged on.
The fixing piece is screw, screw or bolt.
The beneficial effects of the present invention are：Sealing structure in the present invention is provided with diversion trench and cut-off groove, from gap into
The coolant entered cannot be introduced into inside machine shaft by the choked flow of cut-off groove and the guiding function of diversion trench, coolant, from
And it ensure that main shaft precision and the service life of bearing.It is adaptable to machine tool mechanical field.
Brief description of the drawings
Fig. 1 is the exploded view of the sealing structure of the present invention；
Fig. 2 is the longitudinal profile structure schematic of the present invention；
Fig. 3 is the close-up schematic view of Fig. 2 of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Whole description.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained without making creative work
Example, belongs to the scope of protection of the invention.
Referring to shown in Fig. 1, Fig. 2, a kind of contactless fluid-tight structure of mechanical main shaft, sealing structure includes end cap 2, prevents
Liquid lid 3, end cap, liquid-proof lid are sequentially arranged on main shaft 1, and end cap 2 includes interior step 9 and outer step 10, and interior 9 periphery of step is equipped with
Diversion trench 1,10 inner circumferential of outer step are equipped with diversion trench 28, and interior step 9 is higher than outer step 10, is equipped with and cuts on the inside of 3 periphery of liquid-proof lid
Chute 1, inner circumferential outside are equipped with cut-off groove 26, and cut-off groove 1, cut-off groove 26 are engaged with diversion trench 1, diversion trench 28.
Cut-off groove and coordinating for diversion trench can play interception and guide functions to entering the coolant in sealing structure, can further prevent
Coolant enters main shaft, so as to ensure that the normal service life of main shaft.
The liquid-proof lid 3 is installed on main shaft 1 by fixing piece, and dustproof cover 4 is fixed on end cap 2 by fixing piece.
Preferably
The left-hand notch edge of cut-off groove 1 is located at below the notch of diversion trench 1；Cut-off groove 1 and diversion trench 1
Notch is oppositely arranged；
The left-hand notch edge of cut-off groove 26 is located above the notch of diversion trench 28；Cut-off groove 26 and diversion trench 28
Notch is oppositely arranged.
There are gap for cooperation between the dustproof cover 4 and main shaft 1.
The lower section of dustproof cover 4 is equipped with diversion outlet.
The liquid-proof lid 3 is installed on main shaft 1 by fixing piece, and dustproof cover 4 is fixed on end cap 2 by fixing piece.By
In can produce flying dust in process, thus dustproof cover is set to prevent flying dust from entering in main shaft.
There are the first gap for cooperation between dustproof cover 4 and end cap 2.
There are the second gap for cooperation between dustproof cover 4 and liquid-proof lid 3.
Dustproof cover is equipped with diversion outlet.Diversion outlet is easy to discharge the coolant in diversion trench.
Fixing piece is screw, screw or bolt.
Liquid-proof lid 3 is locked by screw thread and main shaft 1.
Babinet 20 is arranged on the outer end side of end cap 2.
In the present invention, lathe in operation process, when air gun or high-pressure high-flow coolant by dustproof cover and main shaft it
Between gap, can be thrown out of into the part dust inside dustproof cover and coolant；Cut-off groove one and diversion trench one play choked flow
With derived effect, at this time essentially all of dust or coolant be all blocked, i.e., dust or coolant be hardly
It can enter inside main shaft；
If there are minimal amount of dust or coolant to go successively to by cut-off groove one and diversion trench one, due to entrance
Dust or coolant pressure very little, gait of march is very slow, and cut-off groove two and diversion trench two just play extraordinary
Shut off and guide functions, dust or coolant would not be entered inside main shaft, so that ensure that the normal service life of main shaft,
Coolant is discharged along diversion trench two through diversion outlet.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, without departing from the spirit and scope of the present invention, still can according to the present invention disclosure it is direct
Determine or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other all these variations or modifications.
Claims (7)
1. a kind of contactless fluid-tight structure of mechanical main shaft, the sealing structure includes end cap, liquid-proof lid, its feature exists
In the end cap, liquid-proof lid are sequentially arranged on main shaft, and the end cap includes interior step and outer step, and interior step periphery is equipped with
Diversion trench one, outer step inner circumferential are equipped with diversion trench two, and interior step is higher than outer step, cut-off groove is equipped with the inside of the liquid-proof lid periphery
One, inner circumferential outside is equipped with cut-off groove two, and cut-off groove one, cut-off groove two are engaged with diversion trench one, diversion trench two.
A kind of 2. contactless fluid-tight structure of mechanical main shaft according to claim 1, it is characterised in that the liquid-proof
Lid is installed on main shaft by fixing piece, and dustproof cover is fixed on end cap by fixing piece.
3. the contactless fluid-tight structure of a kind of mechanical main shaft according to claim 2, it is characterised in that described dust-proof
There are gap for cooperation between lid and main shaft.
4. the contactless fluid-tight structure of a kind of mechanical main shaft according to claim 3, it is characterised in that described dust-proof
Lid lower section is equipped with diversion outlet.
A kind of 5. contactless fluid-tight structure of mechanical main shaft according to claim 1, it is characterised in that cut-off groove one
Left-hand notch edge be located at below the notch of diversion trench one；Cut-off groove one and the notch of diversion trench one are oppositely arranged.
A kind of 6. contactless fluid-tight structure of mechanical main shaft according to claim 1, it is characterised in that cut-off groove one
Left-hand notch edge be located at below the notch of diversion trench one；Cut-off groove one and the notch of diversion trench one are oppositely arranged.
A kind of 7. contactless fluid-tight structure of mechanical main shaft according to claim 2, it is characterised in that the fixation
Part is screw, screw or bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711479858.0A CN108036058B (en) | 2017-12-29 | 2017-12-29 | Non-contact type liquid-proof sealing structure of mechanical main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711479858.0A CN108036058B (en) | 2017-12-29 | 2017-12-29 | Non-contact type liquid-proof sealing structure of mechanical main shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108036058A true CN108036058A (en) | 2018-05-15 |
| CN108036058B CN108036058B (en) | 2024-08-06 |
Family
ID=62098344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711479858.0A Active CN108036058B (en) | 2017-12-29 | 2017-12-29 | Non-contact type liquid-proof sealing structure of mechanical main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036058B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730353A (en) * | 2018-07-17 | 2018-11-02 | 安徽南方化工泵业有限公司 | A kind of high-performance dust-proof machine sealing structure |
| CN110360286A (en) * | 2019-08-26 | 2019-10-22 | 无锡京华重工装备制造有限公司 | A kind of screw rod bearing safeguard structure |
| CN112122997A (en) * | 2020-09-17 | 2020-12-25 | 浙江双正科技股份有限公司 | Machine tool |
| CN112524255A (en) * | 2020-12-23 | 2021-03-19 | 青岛高测科技股份有限公司 | Slicer main shaft and seal structure thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004050312A (en) * | 2002-07-17 | 2004-02-19 | Kabuto Kogyo Kk | Live center |
| CN101478190A (en) * | 2008-12-30 | 2009-07-08 | 洛阳轴研科技股份有限公司 | Air sealing construct design for electric main shaft of oil grease mill |
| CN201330852Y (en) * | 2008-12-30 | 2009-10-21 | 洛阳轴研科技股份有限公司 | Oil mist sealing structure of electric main shaft |
| CN102518800A (en) * | 2011-11-24 | 2012-06-27 | 西安交通大学 | Clearance seal structure capable of sealing liquid and solid phases |
| CN102691797A (en) * | 2011-03-23 | 2012-09-26 | 刘森钢 | Radial blowing device for high-speed electric spindle |
| CN104179978A (en) * | 2014-08-27 | 2014-12-03 | 台州市路桥景耀数控机床厂 | Dustproof and waterproof sealing structure for mechanical spindle |
| CN205928097U (en) * | 2016-08-10 | 2017-02-08 | 深圳市爱贝科精密机械有限公司 | A waterproof dustproof construction for ball electricity main shaft |
| CN208153740U (en) * | 2017-12-29 | 2018-11-27 | 台州市神鹰机床厂 | A kind of contactless fluid-tight structure of mechanical main shaft |
-
2017
- 2017-12-29 CN CN201711479858.0A patent/CN108036058B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004050312A (en) * | 2002-07-17 | 2004-02-19 | Kabuto Kogyo Kk | Live center |
| CN101478190A (en) * | 2008-12-30 | 2009-07-08 | 洛阳轴研科技股份有限公司 | Air sealing construct design for electric main shaft of oil grease mill |
| CN201330852Y (en) * | 2008-12-30 | 2009-10-21 | 洛阳轴研科技股份有限公司 | Oil mist sealing structure of electric main shaft |
| CN102691797A (en) * | 2011-03-23 | 2012-09-26 | 刘森钢 | Radial blowing device for high-speed electric spindle |
| CN102518800A (en) * | 2011-11-24 | 2012-06-27 | 西安交通大学 | Clearance seal structure capable of sealing liquid and solid phases |
| CN104179978A (en) * | 2014-08-27 | 2014-12-03 | 台州市路桥景耀数控机床厂 | Dustproof and waterproof sealing structure for mechanical spindle |
| CN205928097U (en) * | 2016-08-10 | 2017-02-08 | 深圳市爱贝科精密机械有限公司 | A waterproof dustproof construction for ball electricity main shaft |
| CN208153740U (en) * | 2017-12-29 | 2018-11-27 | 台州市神鹰机床厂 | A kind of contactless fluid-tight structure of mechanical main shaft |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730353A (en) * | 2018-07-17 | 2018-11-02 | 安徽南方化工泵业有限公司 | A kind of high-performance dust-proof machine sealing structure |
| CN110360286A (en) * | 2019-08-26 | 2019-10-22 | 无锡京华重工装备制造有限公司 | A kind of screw rod bearing safeguard structure |
| CN112122997A (en) * | 2020-09-17 | 2020-12-25 | 浙江双正科技股份有限公司 | Machine tool |
| CN112524255A (en) * | 2020-12-23 | 2021-03-19 | 青岛高测科技股份有限公司 | Slicer main shaft and seal structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108036058B (en) | 2024-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 318050 Shangzhang Village, Lunan Street, Luqiao District, Taizhou City, Zhejiang Province Applicant after: Taizhou Shenying Machine Tool Co.,Ltd. Address before: 318050 Shangzhang Village, Lunan Street, Luqiao District, Taizhou City, Zhejiang Province Applicant before: Taizhou Shenying machine tool factory |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |