CN206017732U - Split type air curtain protection device for machine tool chief axis - Google Patents
Split type air curtain protection device for machine tool chief axis Download PDFInfo
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- CN206017732U CN206017732U CN201620973961.5U CN201620973961U CN206017732U CN 206017732 U CN206017732 U CN 206017732U CN 201620973961 U CN201620973961 U CN 201620973961U CN 206017732 U CN206017732 U CN 206017732U
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- gas channel
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- air curtain
- labyrinth
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Abstract
This utility model belongs to technical field of mechanical, and in particular to a kind of split type air curtain protection device for machine tool chief axis.This utility model aims to solve the problem that the big problem of traditional air curtain protection device difficulty of processing.For this purpose; air curtain protection device of the present utility model includes the end cap being installed on machine tool chief axis; the first gas channel is provided with the end cap; one end of first gas channel is communicated to air inlet; the other end of first gas channel is connected with the second gas channel in end cap; the end cap includes labyrinth disc and labyrinth seat; in assembled state; the labyrinth disc is nested in the seat of labyrinth and is therefore formed between labyrinth disc and labyrinth seat second gas channel, and gas is entered the first gas channel from air inlet and discharged by the second gas channel.In scheme of the present utility model, steam vent is formed by processing skewed slot on the radial of labyrinth disc, the difficulty of processing of air curtain protection device is therefore significantly simplified.
Description
Technical field
This utility model belongs to technical field of mechanical, and in particular to a kind of split type air curtain for machine tool chief axis is protected
Protection unit.
Background technology
The core support part of the main shaft of machining center is the main shaft bearing of high speed and precision, and any minute impurities enter into master
Axle bearing can all affect the precision of main shaft bearing work and life-span, so the sealing characteristics of bearing are extremely important.Air curtain is protected, custom
Claim hermetic seal, be mainly used in the protection of bearing, prevent the booties such as cutting fluid, the iron filings of outside from entering bearing, cause the damage of bearing
Evil.Traditional air curtain protection needs draw source of the gas all the way and enter drive end bearing bracket, and the device with multiple angling holes is loaded front end then
Lid, gas are discharged from the gap of main shaft and drive end bearing bracket by aperture.
However, traditional air curtain protection device needs multiple parts to install, it is very big to incline hole machined difficulty of getting up, and assembles
Air curtain protection device will also result in the uneven problem of outlet, reduce protection effect.Therefore, this area needs a kind of new
Air curtain protection device is solving the above problems.
Utility model content
In order to solve the problems referred to above of the prior art, it has been that the traditional air curtain protection device difficulty of processing of solution is big to ask
Topic, this utility model provide a kind of split type air curtain protection device for machine tool chief axis.The split type air curtain protection device
Including the end cap being installed on the machine tool chief axis, the first gas channel, first gas channel in the end cap, is provided with
One end be communicated to air inlet, the other end of first gas channel is connected with the second gas channel in the end cap, institute
Stating end cap includes labyrinth disc and labyrinth seat, and in assembled state, therefore the labyrinth disc is nested in the labyrinth seat and
Second gas channel is formed between the labyrinth disc and the labyrinth seat, and gas enters described first from the air inlet
Gas channel is simultaneously discharged by second gas channel.
In the preferred implementation of above-mentioned split type air curtain protection device, the labyrinth seat includes holding tank, the fan
Palace disk includes radially-outer surface and axially inner side face, when the labyrinth disc is nested in the labyrinth seat, the labyrinth disc
Radially-outer surface is in sealing contact with the medial wall of the holding tank, the axially inner side face of the labyrinth disc and the bottom of the holding tank
Face is collectively forming second gas channel.
In the preferred implementation of above-mentioned split type air curtain protection device, the axially inner side face of the labyrinth disc includes setting
The sloping portion of at least one skewed slot is equipped with, the bottom surface of the holding tank also includes corresponding sloping portion, when the labyrinth disc
When being nested in the labyrinth seat, the sloping portion in the axially inner side face of the labyrinth disc and the inclination of the bottom surface of the holding tank
Part abuts against each other so that the skewed slot constitutes the angled section of second gas channel.
In the preferred implementation of above-mentioned split type air curtain protection device, the axially inner side face of the labyrinth disc also includes
Vertical portion, the bottom surface of the holding tank also include corresponding vertical portion, when the labyrinth disc is nested in the labyrinth seat
When, it is empty that first is formed between the vertical portion of the bottom surface of the vertical portion in the axially inner side face of the labyrinth disc and the holding tank
Gap, first space constitute the vertical section of second gas channel.
In the preferred implementation of above-mentioned split type air curtain protection device, rotation of the skewed slot relative to the labyrinth disc
Shaft axis are obliquely arranged on the sloping portion in axially inner side face of the labyrinth disc.
In the preferred implementation of above-mentioned split type air curtain protection device, the air curtain protection device also includes sealing
Lid, the closure complement each other to form the 3rd gas channel, the 3rd gas channel and second gas with the end cap
Circulation road is connected.
In the preferred implementation of above-mentioned split type air curtain protection device, the 3rd gas channel includes communicating with each other
Axial section and radial segment, the axial section connected with second gas channel, and the radial segment leads to outside.
In the preferred implementation of above-mentioned split type air curtain protection device, the closure includes radial component and axial direction
Part, in assembled state, forms the between the inner radial surface of the axial component of the closure and the labyrinth disc
Two spaces, the Second gap constitute the axial section of the 3rd gas channel, the radial component of the closure with described
The 3rd space is formed between the axially external face of labyrinth disc, and the 3rd space constitutes the radial portion of the 3rd gas channel
Section.
In the preferred implementation of above-mentioned split type air curtain protection device, the air curtain protection device also includes front end gas
Circulation road, the front end gas channel between the air inlet and first gas channel, for will from described enter
The air-flow of QI KOU is incorporated in first gas channel.
In the preferred implementation of above-mentioned split type air curtain protection device, the air curtain protection device also includes air pump,
The air pump is communicated to the air inlet, for the machine tool chief axis work during be that the air curtain protection device is persistently provided
Protective gas.
In the technical solution of the utility model, air curtain protection device is mainly by labyrinth disc and two part structures of labyrinth seat
Into, by processing multiple skewed slots on the sagittal plane of labyrinth disc, then labyrinth disc is snapped into labyrinth seat together with, be combined into end
Lid, and therefore form the angling hole for gas circulation.The mode for processing angling hole is needed relative to traditional air curtain protection device,
The technique for processing skewed slot on the sagittal plane of labyrinth disc is simpler, so as to enormously simplify the difficult processing of air curtain protection device
Degree.Simultaneously as multiple skewed slots on the inclined-plane of labyrinth disc, are provided with, and skewed slot is outward-dipping, so that gas is by tiltedly
During groove, curl is discharged, and relative to the air curtain protection device of conventionally employed angling hole, it is more equal that this programme causes gas to discharge
Even, so that being all equably subject to airtight protection on the whole circumference direction of main shaft.
Description of the drawings
Fig. 1 is the structural representation of traditional air curtain protection device；
Structural representation when Fig. 2 is split type air curtain protection device application for machine tool chief axis of the present utility model；
Fig. 3 is the schematic cross-section of the end cap of the split type air curtain protection device for machine tool chief axis of the present utility model；
Fig. 4 A are the sectional views of the labyrinth disc of the split type air curtain protection device for machine tool chief axis of the present utility model；
Fig. 4 B are the structural representations of the labyrinth disc of the split type air curtain protection device for machine tool chief axis of the present utility model
Figure；
Fig. 5 is the sectional view of the labyrinth seat of the split type air curtain protection device for machine tool chief axis of the present utility model；
Fig. 6 is the structural representation of the closure of the split type air curtain protection device for machine tool chief axis of the present utility model
Figure.
Specific embodiment
With reference to the accompanying drawings describing preferred implementation of the present utility model.Skilled artisan would appreciate that
It is that these embodiments are used only for explaining know-why of the present utility model, it is not intended that limit protection of the present utility model
Scope.For example, although each component in accompanying drawing is drawn with special ratios, this proportionate relationship is merely exemplary,
Those skilled in the art can make adjustment to which as needed, to adapt to specific application scenario.
It should be noted that in description of the present utility model, term " " center ", " on ", D score, "left", "right", " perpendicular
Directly ", the orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are only
For the ease of describe this utility model and simplify description, rather than indicate or hint indication device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or hint relative importance.
In addition it is also necessary to illustrate, in description of the present utility model, unless otherwise clearly defined and limited, art
Language " installation ", " being connected ", " connection " should broadly understood, for example, it may be fixedly connected, or be detachably connected, or
It is integrally connected；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to by between intermediary
Connect connected, can be the connection of two element internals.To those skilled in the art, on can understanding as the case may be
State concrete meaning of the term in this utility model.
With reference first to Fig. 1, Fig. 1 is the structural representation of traditional air curtain protection device.As shown in figure 1, traditional air curtain is protected
Protection unit need draw all the way source of the gas enter drive end bearing bracket, then will accomplish fluently multiple angling holes 1 device load drive end bearing bracket, drive end bearing bracket with
There is between main shaft gap, gap of the gas by multiple angling holes 1 between drive end bearing bracket and main shaft to discharge.This air curtain protection
Mode needs to beat multiple angling holes 1 in the course of processing, and in mechanical processing process, relative to normal punch operation, angling hole
Difficulty of processing very big, therefore can increase considerably processing cost.Further, since the position tolerance that faces of angling hole 1 compared with
Greatly, it is uneven that the air curtain protection device after assembling will also result in outlet, reduces protection effect.The use that this utility model is provided
Difficulty of processing be enormously simplify in the split type air curtain protection device of machine tool chief axis.Below the technical solution of the utility model is entered
Row is described in detail.
Structure with reference to Fig. 2, when Fig. 2 is split type air curtain protection device application for machine tool chief axis of the present utility model
Schematic diagram.As shown in Fig. 2 the air curtain protection device includes the end cap 3 being installed on machine tool chief axis 2, in end cap 3, first is provided with
Gas channel 31, one end of the first gas channel 31 are communicated to air inlet, in the other end of the first gas channel 31 and end cap 3
Second gas channel 32 is connected.Specifically, with reference to Fig. 3, Fig. 3 is that the split type air curtain for machine tool chief axis of the present utility model is protected
The schematic cross-section of the end cap of protection unit.As shown in figure 3, end cap 3 includes labyrinth disc 33 and labyrinth seat 34.Wherein, labyrinth disc 33
It is nested in labyrinth seat 34, and between labyrinth disc 33 and labyrinth seat 34, therefore forms the second gas channel 32, gas is from air inlet
Mouth is entered the first gas channel 31 and is discharged by the second gas channel 32.More specifically, reference picture 4A and Fig. 5, Fig. 4 A are these
The sectional view of the labyrinth disc of the split type air curtain protection device for machine tool chief axis of utility model；Fig. 5 is of the present utility model
Sectional view for the labyrinth seat of the split type air curtain protection device of machine tool chief axis.As shown in Figure 4 and Figure 5, labyrinth disc 33 includes
Radially-outer surface 331 and axially inner side face 332, labyrinth seat 34 include holding tank 341, and holding tank 341 includes bottom surface 3412 and interior
Sidewall 34 11, when labyrinth disc 33 is nested in labyrinth seat 34, the radially-outer surface 331 of labyrinth disc 33 is interior with holding tank 341
Sidewall 34 11 is in sealing contact, and the axially inner side face 332 of labyrinth disc 33 is collectively forming described second with the bottom surface 3412 of holding tank 341
Gas channel 32.The axially inner side face 332 of labyrinth disc 33 includes sloping portion 3321, as shown in Figure 4 B, the inclination of labyrinth disc 33
Multiple skewed slots 333 are provided with part 3321, and skewed slot 333 is obliquely arranged on labyrinth disc relative to the rotation axiss of labyrinth disc 33
On the sloping portion 3321 in 33 axially inner side face 332.Specifically, from 333 one end of skewed slot to line and the fan of its other end
The rotation axiss of palace disk 33 are angled, and preferably the rotation axiss relative to labyrinth disc 33 are to side and downward-sloping.
The bottom surface 3412 of holding tank 341 also includes corresponding sloping portion 34121, when labyrinth disc 33 is nested in labyrinth seat 34, fan
The sloping portion 3321 in the axially inner side face 332 of palace disk 33 is supported each other with the sloping portion 34121 of the bottom surface 3412 of holding tank 341
Lean on so that skewed slot 333 constitutes the angled section of the second gas channel 32.As skewed slot 333 is relative to the rotary shaft of labyrinth disc 33
Line is obliquely installed, and when gas flows into the second gas channel 32 from the first gas channel 31, the gas can be spirally square
Formula is around the almost whole periphery of machine tool chief axis 2.Compared with the skewed slot arranged with the rotation axiss straight line relative to labyrinth disc 33, this
The skewed slot kind being obliquely installed can make protective gas more uniformly around machine tool chief axis 2, so as to avoid in prior art aerofluxuss not
Uniform problem.With regard to this point, it is further noted that the implication of " skewed slot " described here comprising two aspects, one
Individual be meant that the groove is arranged on sloping portion 3321, no matter relative to vertical direction, or relative to horizontal direction, which is all
It is to incline；Another is meant that on the basis of previous inclination " skewed slot " also deviate from the rotary shaft of labyrinth disc 33
Line, that is to say, that the extended line of each skewed slot is all without the jante et perpendiculaire with labyrinth disc 33.Of the present utility model
" skewed slot " belongs to second inclination, both relative to both vertically and horizontally inclining, and the rotary shaft relative to labyrinth disc 33
Line is inclined.
Further, the axially inner side face 332 of labyrinth disc 33 also includes vertical portion 3322, the bottom surface 3412 of holding tank 341
Also include corresponding vertical portion 34122, when labyrinth disc 33 is nested in labyrinth seat 34, the axially inner side face of labyrinth disc 33
The first space is formed between the vertical portion 34122 of 332 vertical portion 3322 and the bottom surface 3412 of holding tank 341, and first is empty
Gap constitutes the vertical section of the second gas channel 32.Gas is passed through when entering the second gas channel 32 from the first gas channel 31 first
The vertical section is crossed, subsequently into above-mentioned angled section, most tailing edge skewed slot is discharged.With regard to this point, it should be pointed out that can
Rake with the bottom surface 3412 of the sloping portion 3321 and holding tank 341 in the axially inner side face 332 by adjusting labyrinth disc 33
Forming first space, this is that those skilled in the art can realize easily to size relationship between points 34121, herein
Repeat no more.
Further, with continued reference to Fig. 2, air curtain protection device also includes closure 4, and closure 4 and end cap 3 cooperate shape
Into the 3rd gas channel 5, the 3rd gas channel 5 is connected with the second gas channel 32.Specifically, the 3rd gas channel 5 includes that
The axial section and radial segment of this connection, axial section are connected with the second gas channel 32, and radial segment leads to outside.More
Body ground, with reference to Fig. 6, Fig. 6 is the structure of the closure of the split type air curtain protection device for machine tool chief axis of the present utility model
Schematic diagram.As shown in fig. 6, simultaneously referring to the drawings 4A, closure 4 includes radial component 41 and axial component 42, in the shape for assembling
Under state, i.e., after closure 4 is installed on machine tool chief axis 2, the inner radial surface of the axial component of closure 4 42 and labyrinth disc 33
Second gap is formed between 334, and the Second gap constitutes the axial section of the 3rd gas channel 5, the radial component 41 of closure 4
The 3rd space is formed and the axially external face 335 of labyrinth disc 33 between, and the 3rd space constitutes the radial portion of the 3rd gas channel 5
Section.Gas flows into the second gas channel 32 through the first gas channel 31, then successively through the axial section of the 3rd gas channel 5
The radial segment (the 3rd space) of (Second gap) and the 3rd gas channel 5 is discharged.
In above-mentioned technical proposal preferred implementation, air curtain protection device also includes front end gas channel 6, front end air-flow
Passage 6 between air inlet and the first gas channel 31, for the air-flow from air inlet is incorporated into the first gas channel
In 31, also, the air curtain protection device also includes that air pump (not shown), air pump are communicated to air inlet, in lathe master
Axle 2 persistently provides protective gas for air curtain protection device during working.It should be noted that the air inlet directly can also be arranged
In the top of the first gas channel 31, front end gas channel 6 is omitted, the first gas channel 31 is directly introduced gases into by air pump
In.
In sum, air curtain protection device of the present utility model need not carry out the processing of angling hole, it is only necessary in labyrinth
Multiple skewed slots are processed on the radial of disk 33, labyrinth disc 33 and labyrinth seat 34 are combined into end cap 3 then, are inclined relative to processing
The mode of inclined hole, the skewed slot on labyrinth disc 33 are easy to processing, so as to significantly simplify traditional air curtain protection device
Difficulty of processing.Simultaneously as be provided with multiple skewed slots 333 on labyrinth disc 33, and skewed slot 333 is outward-dipping so that gas leads to
When crossing skewed slot, curl is discharged, and relative to traditional air curtain protection device, it is more uniform that this programme discharges gas, so as to more
Hermetic seal is carried out to the whole circumference of machine tool chief axis equably.Show 12 skewed slots in the present embodiment in accompanying drawing 4B, but this
It is not restricted, those skilled in the art obviously can arrange the skewed slot of other quantity according to practical situation.
So far, the technical solution of the utility model is described already in connection with preferred implementation shown in the drawings, but, this
Art personnel are it is easily understood that protection domain of the present utility model is expressly not limited to these specific embodiments.?
On the premise of without departing from principle of the present utility model, those skilled in the art can make the change of equivalent to correlation technique feature
Or replace, the technical scheme after these are changed or replace it is fallen within protection domain of the present utility model.
Claims (10)
1. a kind of split type air curtain protection device for machine tool chief axis, it is characterised in that the air curtain protection device includes pacifying
The end cap being attached on the machine tool chief axis, is provided with the first gas channel, one end of first gas channel in the end cap
Air inlet is communicated to, the other end of first gas channel is connected with the second gas channel in the end cap, the end cap
Including labyrinth disc and labyrinth seat, in assembled state, the labyrinth disc is nested in the labyrinth seat and therefore described
Second gas channel is formed between labyrinth disc and the labyrinth seat, and gas enters first air-flow from the air inlet and leads to
Simultaneously discharged by second gas channel in road.
2. split type air curtain protection device according to claim 1, it is characterised in that the labyrinth seat includes holding tank,
The labyrinth disc includes radially-outer surface and axially inner side face, when the labyrinth disc is nested in the labyrinth seat, the fan
The radially-outer surface of palace disk is in sealing contact with the medial wall of the holding tank, the axially inner side face of the labyrinth disc and the receiving
The bottom surface of groove is collectively forming second gas channel.
3. split type air curtain protection device according to claim 2, it is characterised in that the axially inner side face of the labyrinth disc
Including being provided with the sloping portion of at least one skewed slot, the bottom surface of the holding tank also includes corresponding sloping portion, when described
When labyrinth disc is nested in the labyrinth seat, the sloping portion in the axially inner side face of the labyrinth disc and the bottom surface of the holding tank
Sloping portion abut against each other so that the skewed slot constitutes the angled section of second gas channel.
4. split type air curtain protection device according to claim 3, it is characterised in that the axially inner side face of the labyrinth disc
Also include that vertical portion, the bottom surface of the holding tank also include corresponding vertical portion, when the labyrinth disc is nested in the fan
When in the seat of palace, formed between the vertical portion of the bottom surface of the vertical portion in the axially inner side face of the labyrinth disc and the holding tank
First space, first space constitute the vertical section of second gas channel.
5. split type air curtain protection device according to claim 4, it is characterised in that the skewed slot is relative to the labyrinth
The rotation axiss of disk are obliquely arranged on the sloping portion in axially inner side face of the labyrinth disc.
6. split type air curtain protection device according to claim 5, it is characterised in that the air curtain protection device also includes
Closure, the closure complement each other to form the 3rd gas channel, the 3rd gas channel and described with the end cap
Two gas channels are connected.
7. split type air curtain protection device according to claim 6, it is characterised in that the 3rd gas channel includes that
The axial section and radial segment of this connection, the axial section are connected with second gas channel, and the radial segment is led to
To outside.
8. split type air curtain protection device according to claim 7, it is characterised in that the closure includes radial component
And axial component, in assembled state, between the inner radial surface of the axial component of the closure and the labyrinth disc
Second gap is formed, the Second gap constitutes the axial section of the 3rd gas channel, the radial component of the closure
The 3rd space is formed and the axially external face of the labyrinth disc between, and the 3rd space constitutes the footpath of the 3rd gas channel
To section.
9. split type air curtain protection device according to claim 8, it is characterised in that the air curtain protection device also includes
Front end gas channel, the front end gas channel between the air inlet and first gas channel, for will be from
The air-flow of the air inlet is incorporated in first gas channel.
10. split type air curtain protection device according to claim 9, it is characterised in that the air curtain protection device is also wrapped
Include air pump, the air pump is communicated to the air inlet, for the machine tool chief axis work during be the air curtain protection device
Protective gas is persistently provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973961.5U CN206017732U (en) | 2016-08-29 | 2016-08-29 | Split type air curtain protection device for machine tool chief axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973961.5U CN206017732U (en) | 2016-08-29 | 2016-08-29 | Split type air curtain protection device for machine tool chief axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017732U true CN206017732U (en) | 2017-03-15 |
Family
ID=58253452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620973961.5U Active CN206017732U (en) | 2016-08-29 | 2016-08-29 | Split type air curtain protection device for machine tool chief axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246924A (en) * | 2016-08-29 | 2016-12-21 | 北京超同步伺服股份有限公司 | Split type air curtain protection device for machine tool chief axis |
-
2016
- 2016-08-29 CN CN201620973961.5U patent/CN206017732U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246924A (en) * | 2016-08-29 | 2016-12-21 | 北京超同步伺服股份有限公司 | Split type air curtain protection device for machine tool chief axis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 101500 No. 9 Yunxi Sixth Street, Miyun District Economic Development Zone, Beijing Patentee after: Super Synchronization Co., Ltd. Address before: 101500, 200 meters West Village, ten Li village, Beijing, Miyun Patentee before: BEIJING CHAOTONGBU SERVO CO., LTD. |
|
| CP03 | Change of name, title or address |