CN108953388A - A kind of drilling and tapping machine main shaft sealing construction - Google Patents
A kind of drilling and tapping machine main shaft sealing construction Download PDFInfo
- Publication number
- CN108953388A CN108953388A CN201710394566.0A CN201710394566A CN108953388A CN 108953388 A CN108953388 A CN 108953388A CN 201710394566 A CN201710394566 A CN 201710394566A CN 108953388 A CN108953388 A CN 108953388A
- Authority
- CN
- China
- Prior art keywords
- spindle
- bearing
- lid
- main shaft
- end bearing
- 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.)
- Pending
Links
Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
A kind of drilling and tapping machine main shaft sealing construction, including central spindle, end bearing and rear end bearing before being respectively sleeved in the central spindle, the both ends of central spindle are separately installed with front-end of spindle lid and rear-end of spindle lid, the side of the front-end of spindle lid is connected with inlet suction port, it is characterized by: the front-end of spindle lid and inlet suction port junction are provided with the curtain diversion ring that can form labyrinth structure with front-end of spindle lid, the sealing inner ring and sealed outer ring of the composition sealing structure that cooperates are provided on the outside of the preceding end bearing.
Description
Technical field
The present invention relates to drilling and tapping machine main shaft integral sealing safeguard structures.
Background technique
In recent years since communications industry is risen, 3C phone housing process requirements amount is big, so that high speed drilling and tapping machine tool is able to fastly
Speed development.In order to reduce production cost, the competitiveness of enhancing enterprise in the market as far as possible, center machine is attacked using these high speed drills
User generally board can be arranged very intensive, and high speed drill attacks center when carrying out metal cutting process inevitably
Mist of oil can be generated, the mist of oil aggregation for undoubtedly exacerbating production scene is intensively arranged as enterprise.It in process of production also can be through
Often there is a situation where because inside greasy dirt infiltration main shaft, damaging high-speed spindle bearing.The main shaft used in this environment is universal
There is a situation where that service life is short, maintenance cost is high, attacks the critical function component at center as boring, main shaft frequent breakage, sternly
Important place reduces production efficiency, increases production cost.Trace it to its cause is exactly that main axle structure under the prior art is sealed in protection
Structure is upper defective in sealing, leads to greasy dirt infiltration central spindle corrosion bearing in process, main shaft is caused to damage.
Summary of the invention
The purpose of the present invention is overcoming the defect of existing technology and deficiency, a kind of good seal performance is provided, main shaft uses the time
Long drilling and tapping machine main shaft sealing construction.
In order to achieve the above object, the technical solution of the invention is as follows: a kind of drilling and tapping machine main shaft sealing construction, including axis
Core, end bearing and rear end bearing, the both ends of central spindle are separately installed with front-end of spindle lid and master before being respectively sleeved in the central spindle
The side of shaft rear end lid, the front-end of spindle lid is connected with inlet suction port, it is characterised in that: the front-end of spindle lid and air inlet
Joint is provided with the curtain diversion ring that labyrinth structure can be formed with front-end of spindle lid, the outside setting of the preceding end bearing
By the sealing inner ring and sealed outer ring for forming sealing structure that cooperate, main shaft is socketed on the outside of preceding end bearing and rear end bearing
Sleeve, is provided with rear bearing inner ring gland between the rack sleeve and central spindle, the rear bearing inner ring gland passes through fixed spiral shell
Mother is pressed together on rear end bearing.
The present invention compared with prior art, has the advantage that
1, front-end of spindle lid and curtain diversion ring composition labyrinth structure form the first line of defence in the present invention, the bits that the external world is entered
Outside end and water mist are blocked in, and water mist is blown out by the air-flow in inlet suction port, and is made of sealing inner ring and sealed outer ring
Retaining ring side constitute second defence line, the water mist entered from gap and dirt are blocked in front end Bearing outer, avoid cooling down
Water mist brings Bearing inner into, causes grease to dilute and corrodes bearing, main shaft is caused to damage.
2, it present invention eliminates the bearing outer ring gland in traditional technology, is integrally machined out by rack sleeve, after only remaining
End bearing inner ring is contacted with rear bearing inner ring gland, and increases ring structure in rear bearing inner ring gland inner hole wall, is effectively hindered
Stop the greasy dirt penetrated by nut, while having also simplified structure, saves processing cost.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure: central spindle 1, preceding end bearing 2, rear end bearing 3, front-end of spindle lid 4, inlet suction port 5, curtain diversion ring 6, sealing
Inner ring 7, sealed outer ring 8, rack sleeve 9, rear bearing inner ring gland 10, fixture nut 11 keep off oil seal circle 12.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1, a kind of drilling and tapping machine main shaft sealing construction, including central spindle 1 is respectively sleeved on front end axis in the central spindle 1
Hold 2 and rear end bearing 3, the outside of the preceding end bearing 2 and rear end bearing 3 is socketed with rack sleeve 9, the rack sleeve 9 with
Rear bearing inner ring gland 10 is provided between central spindle 1, the rear bearing inner ring gland 10 is pressed together on rear end by fixture nut 11
On bearing 3, gear oil seal circle 12 is provided on the inner hole wall of the rear bearing inner ring gland 10, the both ends of central spindle 1 are installed respectively
There are front-end of spindle lid 4 and rear-end of spindle lid, the side of the front-end of spindle lid 4 is connected with inlet suction port 5, the front-end of spindle
Lid 4 and 5 junction of inlet suction port are provided with the curtain diversion ring 6 that labyrinth structure can be formed with front-end of spindle lid 4, the front end axis
The outside for holding 2 is provided with sealing inner ring 7 and sealed outer ring 8 that mutual cooperation forms sealing structure.
High speed drilling and tapping machine generates water mist after high-pressure cooling water injection, in high-speed rotating central spindle 1 when carrying out machining
On, it is also easy to produce upward air-flow, these are accompanied with the cooling water mist at bits end by by front-end of spindle lid 4 and air curtain guide ring 6
Composition first of labyrinth protecting wall when can be blocked a part and blown out from inlet suction port 5 air-flow blowout, it is remaining from
The cooling water mist entered in gap can be blocked in the second labyrinth protecting wall being made of sealing inner ring 7 and sealed outer ring 8,
Before cooling water mist will be thoroughly blocked in by the setting in twice defence line outside end bearing 2.Bearing outer ring pressure is incorporated at rear end bearing 3
The rack sleeve 9 of lid and the gear oil seal circle 12 on the inner hole wall of rear bearing inner ring gland 10 can be prevented effectively from fixation
The greasy dirt penetrated into nut 11 penetrates into bearing from thread gaps after avoiding mist of oil from condensing, pollute bearing grease, bearing is caused to damage
It is bad.
Claims (1)
1. a kind of drilling and tapping machine main shaft sealing construction, including central spindle (1), be respectively sleeved on the central spindle (1) preceding end bearing (2) and
Rear end bearing (3), the both ends of central spindle (1) are separately installed with front-end of spindle lid (4) and rear-end of spindle lid, the front-end of spindle lid
(4) side is connected with inlet suction port (5), it is characterised in that: the front-end of spindle lid (4) and inlet suction port (5) junction
It is provided with the curtain diversion ring (6) that labyrinth structure can be formed with front-end of spindle lid (4), the outside setting of the preceding end bearing (2)
Form the sealing inner ring (7) and sealed outer ring (8) of sealing structure by cooperating, preceding end bearing (2) and rear end bearing (3) outside
Side is socketed with rack sleeve (9), and rear bearing inner ring gland (10) is provided between the rack sleeve (9) and central spindle (1), described
Rear bearing inner ring gland (10) is pressed together on rear end bearing (3) by fixture nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394566.0A CN108953388A (en) | 2017-05-29 | 2017-05-29 | A kind of drilling and tapping machine main shaft sealing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394566.0A CN108953388A (en) | 2017-05-29 | 2017-05-29 | A kind of drilling and tapping machine main shaft sealing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108953388A true CN108953388A (en) | 2018-12-07 |
Family
ID=64494420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710394566.0A Pending CN108953388A (en) | 2017-05-29 | 2017-05-29 | A kind of drilling and tapping machine main shaft sealing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953388A (en) |
-
2017
- 2017-05-29 CN CN201710394566.0A patent/CN108953388A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181207 |