CN206175668U - Split type lathe main shaft gas seal device - Google Patents
Split type lathe main shaft gas seal device Download PDFInfo
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- CN206175668U CN206175668U CN201620973917.4U CN201620973917U CN206175668U CN 206175668 U CN206175668 U CN 206175668U CN 201620973917 U CN201620973917 U CN 201620973917U CN 206175668 U CN206175668 U CN 206175668U
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- labyrinth
- gas
- gas channel
- labyrinth disc
- sealing mechanism
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Abstract
The utility model belongs to the mechanical seal field, concretely relates to split type lathe main shaft gas seal device. The utility model discloses aim at solving the big problem of traditional gas seal device processing degree of difficulty. Mesh for this reason, the utility model discloses a gas seal device is provided with an airflow channel including installing the epaxial end cover of lathe owner in, an airflow channel's one end feeds through the air inlet, and the 2nd airflow channel in the other end and the end cover feeds through, and the end cover includes labyrinth disc and maze seat, and labyrinth disc is nested in the seat of maze, consequently forms between the two the 2nd airflow channel. This gas seal device still includes the front end airflow channel between an air inlet and an airflow channel, and it is arranged in introducing an airflow channel with the air current that comes from the air inlet, and gas is discharged through the 2nd airflow channel get into an airflow channel from the air inlet after. The utility model discloses a processing chute forms the exhaust hole on labyrinth disc's radial inclined plane, has consequently simplified gas seal device's the processing degree of difficulty by a wide margin.
Description
Technical field
This utility model belongs to technical field of mechanical, and in particular to a kind of split type machine tool chief axis gas sealing mechanism.
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, then will load front end with the device of multiple angling holes
Lid, gas is discharged by aperture from the gap of main shaft and drive end bearing bracket.
However, traditional gas sealing mechanism needs multiple parts to install, it is very big to incline hole machined difficulty of getting up, the gas for assembling
It is uneven that sealing device will also result in outlet, reduces protection effect.Therefore, this area needs a kind of new gas sealing mechanism
Solve 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 gas sealing mechanism difficulty of processing of solution is big to ask
Topic, this utility model provides a kind of split type machine tool chief axis gas sealing mechanism.The split type machine tool chief axis gas sealing mechanism bag
The end cap being installed on the machine tool chief axis is included, the first gas channel is provided with the end cap, first gas channel
One end is communicated to air inlet, and the other end of first gas channel is connected with the second gas channel in the end cap, described
End cap includes labyrinth disc and labyrinth seat, and in assembled state, the labyrinth disc is nested in the labyrinth seat and therefore exists
Second gas channel is formed between the labyrinth disc and the labyrinth seat, gas enters first gas from the air inlet
Circulation road is simultaneously discharged by second gas channel；The gas sealing mechanism also includes front end gas channel, the front end gas
Circulation road between the air inlet and first gas channel, for institute will to be incorporated into from the air-flow of the air inlet
In stating the first gas channel.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, 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, axially inner side face and the receiving of the labyrinth disc
The bottom surface of groove is collectively forming second gas channel.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, the axially inner side face of the labyrinth disc
Including the sloping portion for being provided with 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.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, the axially inner side face of the labyrinth disc
Also include vertical portion, the bottom surface of the holding tank also includes 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 vertical portion in the axially inner side face of the labyrinth disc and the bottom surface of the holding tank
First space, first space constitutes the vertical section of second gas channel.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, 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.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, the gas sealing mechanism also includes close
Capping, the closure complements each other to form the 3rd gas channel, the 3rd gas channel and described second with the end cap
Gas channel is connected.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, the 3rd gas channel includes that
The axial section and radial segment of this connection, the axial section is connected with second gas channel, and the radial segment is led to
To outside.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, 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, the 3rd space constitutes the footpath of the 3rd gas channel
To section.
In the preferred implementation of above-mentioned split type machine tool chief axis gas sealing mechanism, the gas sealing mechanism also includes gas
Pump, the air pump is communicated to the air inlet, for the machine tool chief axis work during be that the gas sealing mechanism is persistently carried
For protective gas.
In the technical solution of the utility model, gas sealing mechanism is mainly made up of two parts of labyrinth disc and labyrinth seat,
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 cap,
And therefore formed for gas circulation angling hole.The mode for processing angling hole is needed relative to traditional gas sealing mechanism, in fan
The technique that skewed slot is processed on the sagittal plane of palace disk is simpler, so as to enormously simplify the difficulty of processing of gas sealing mechanism.Meanwhile,
Due to being provided with multiple skewed slots on the inclined-plane of labyrinth disc, and skewed slot is outward-dipping so that gas pass through skewed slot when into spiral shell
Rotation shape is discharged, and relative to the gas sealing mechanism of conventionally employed angling hole, it is more uniform that this programme causes gas to discharge, so that main
Airtight protection is all equably subject on the whole circumference direction of axle.
Description of the drawings
Fig. 1 is the structural representation of traditional gas sealing mechanism；
Fig. 2 is the structural representation of split type machine tool chief axis gas sealing mechanism of the present utility model；
Fig. 3 is the schematic cross-section of the end cap of split type machine tool chief axis gas sealing mechanism of the present utility model；
Fig. 4 A are the sectional views of the labyrinth disc of split type machine tool chief axis gas sealing mechanism of the present utility model；
Fig. 4 B are the structural representations of the labyrinth disc of split type machine tool chief axis gas sealing mechanism of the present utility model；
Fig. 5 is the sectional view of the labyrinth seat of split type machine tool chief axis gas sealing mechanism of the present utility model；
Fig. 6 is the structural representation of the closure of split type machine tool chief axis gas sealing mechanism of the present utility model.
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 with special ratios drafting, what this proportionate relationship was merely exemplary,
Those skilled in the art can make adjustment as needed to it, to adapt to specific application scenario.
It is term " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that in description of the present utility model
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " is, based on orientation shown in the drawings or position relationship, to be only
For the ease of describe this utility model and simplify description, rather than indicate or imply indication device or element must have it is 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 implying relative importance.
In addition it is also necessary to explanation, in description of the present utility model, unless otherwise clearly defined and limited, art
Language " installation ", " 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 gas sealing mechanism.As shown in figure 1, traditional level Hermetic Package
Put needs and draw source of the gas all the way and enter drive end bearing bracket, the device that then will accomplish fluently multiple angling holes 1 loads drive end bearing bracket, drive end bearing bracket and main shaft
Between there is gap, gas is discharged by gap of the multiple angling holes 1 between drive end bearing bracket and main shaft.This air curtain protected mode
Need to beat multiple angling holes 1 in the course of processing, and in mechanical processing process, relative to normal punch operation, angling hole plus
Work difficulty is very big, therefore can increase considerably processing cost.Further, since the position tolerance that angling hole 1 is faced is larger, dress
It is uneven that gas sealing mechanism after preparing will also result in outlet, reduces protection effect.The split type machine that this utility model is provided
Bed air tight means for main shaft enormously simplify difficulty of processing.The technical solution of the utility model is described in detail below.
With reference to Fig. 2, structural representation when Fig. 2 is split type machine tool chief axis gas sealing mechanism application of the present utility model.
As shown in Fig. 2 the gas sealing mechanism includes the end cap 3 being installed on machine tool chief axis 2, the first gas channel is provided with end cap 3
31, one end of the first gas channel 31 is communicated to air inlet, the second air-flow in the other end and end cap 3 of the first gas channel 31
Passage 32 is connected.Specifically, with reference to Fig. 3, Fig. 3 is cutting for the end cap of split type machine tool chief axis gas sealing mechanism of the present utility model
Face schematic diagram.As shown in figure 3, end cap 3 includes labyrinth disc 33 and labyrinth seat 34.Wherein, labyrinth disc 33 is nested in labyrinth seat 34,
And therefore form the second gas channel 32 between labyrinth disc 33 and labyrinth seat 34, gas enters the first gas channel from air inlet
31 and discharged by the second gas channel 32.More specifically, reference picture 4A and Fig. 5, Fig. 4 A are split type machines of the present utility model
The sectional view of the labyrinth disc of bed air tight means for main shaft；Fig. 5 is split type machine tool chief axis gas sealing mechanism of the present utility model
The sectional view of labyrinth seat.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 medial wall 3411, when labyrinth disc 33 is nested in labyrinth seat 34
When, the radially-outer surface 331 of labyrinth disc 33 is in sealing contact with the medial wall 3411 of holding tank 341, the axially inner side of labyrinth disc 33
Face 332 is collectively forming second gas channel 32 with the bottom surface 3412 of holding tank 341.The axially inner side face 332 of labyrinth disc 33
Including sloping portion 3321, as shown in Figure 4 B, multiple skewed slots 333, skewed slot 333 are provided with the sloping portion 3321 of labyrinth disc 33
Obliquely it is arranged on the sloping portion 3321 in the axially inner side face 332 of labyrinth disc 33 relative to the rotation axiss of labyrinth disc 33.
Specifically, it is angled with the rotation axiss of labyrinth disc 33 to the line of its other end from the one end of skewed slot 333, preferably phase
It is to side and downward-sloping for the rotation axiss of labyrinth disc 33.The bottom surface 3412 of holding tank 341 also includes corresponding inclination
Part 34121, when labyrinth disc 33 is nested in labyrinth seat 34, the sloping portion 3321 in the axially inner side face 332 of labyrinth disc 33
Abut against each other with the sloping portion 34121 of the bottom surface 3412 of holding tank 341 so that skewed slot 333 constitutes the second gas channel 32
Angled section.Because rotation axiss of the skewed slot 333 relative to labyrinth disc 33 are obliquely installed, when gas flows from the first gas channel 31
When entering the second gas channel 32, the gas can spirally mode around machine tool chief axis 2 almost whole periphery.With it is relative
The skewed slot arranged in the rotation axiss straight line of labyrinth disc 33 is compared, and this skewed slot being obliquely installed can make protective gas evenly
Ground around machine tool chief axis 2, so as to avoid prior art in the uneven problem of aerofluxuss.With regard to this point, what needs were further pointed out
It is, the implication of " skewed slot " comprising two aspects described here, one is meant that the groove is arranged on sloping portion 3321, nothing
By relative to vertical direction, or relative to horizontal direction, it is all inclined；Another is meant that in previous inclined base
On plinth, " skewed slot " also deviate from the rotation axiss of labyrinth disc 33, that is to say, that the extended line of each skewed slot all without
With the jante et perpendiculaire of labyrinth disc 33." skewed slot " of the present utility model belongs to second inclination, both relative to vertical direction and
Horizontal direction is inclined, and the rotation axiss relative to labyrinth disc 33 are 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 corresponding vertical portion 34122, when labyrinth disc 33 is nested in labyrinth seat 34, the axially inner side face of labyrinth disc 33 are included
The first space is formed between the vertical portion 34122 of 332 vertical portion 3322 and the bottom surface 3412 of holding tank 341, first is empty
Gap constitutes the vertical section of the second gas channel 32.Gas from the first gas channel 31 enter the second gas channel 32 when Jing 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
With by the rake of the bottom surface 3412 of the sloping portion 3321 and holding tank 341 in the axially inner side face 332 of adjustment 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, gas sealing mechanism also includes closure 4, and closure 4 is complemented each other to form with end cap 3
3rd gas channel 5, the 3rd gas channel 5 is connected with the second gas channel 32.Specifically, the 3rd gas channel 5 is included each other
The axial section and radial segment of connection, axial section is connected with the second gas channel 32, and radial segment leads to outside.More specifically
Ground, with reference to Fig. 6, Fig. 6 is the structural representation of the closure of split type machine tool chief axis gas sealing mechanism of the present utility model.As schemed
Shown in 6, and referring to the drawings 4A, closure 4 includes radial component 41 and axial component 42, in assembled state, that is, seals
After lid 4 is installed on machine tool chief axis 2, is formed between the axial component 42 of closure 4 and the inner radial surface 334 of labyrinth disc 33
Two spaces, the Second gap constitutes the axial section of the 3rd gas channel 5, radial component 41 and the labyrinth disc 33 of closure 4
The 3rd space is formed between axially external face 335, the 3rd space constitutes the radial segment of the 3rd gas channel 5.Gas Jing
One gas channel 31 flow into the second gas channel 32, then successively the axial section (Second gap) of the gas channels 5 of Jing the 3rd and
The radial segment (the 3rd space) of the 3rd gas channel 5 is discharged.
In above-mentioned technical proposal preferred implementation, gas sealing mechanism also includes front end gas channel 6, and front end air-flow leads to
Road 6 between air inlet and the first gas channel 31, for the first gas channel 31 will to be incorporated into from the air-flow of air inlet
In, also, the gas sealing mechanism also includes air pump (not shown), air pump is communicated to air inlet, in the work of machine tool chief axis 2
Protective gas is persistently provided during work for gas sealing mechanism.It should be noted that the air inlet can also be set directly at first
The top of gas channel 31, omits front end gas channel 6, is directly introduced gases in the first gas channel 31 by air pump.
In sum, gas sealing mechanism of the present utility model need not carry out the processing of angling hole, it is only necessary in labyrinth disc
Multiple skewed slots are processed on 33 radial, then labyrinth disc 33 and labyrinth seat 34 end cap 3 is combined into into, is inclined relative to processing
The mode in hole, the skewed slot on labyrinth disc 33 is easy to processing, so as to significantly simplify the processing of traditional gas sealing mechanism
Difficulty.Simultaneously as multiple skewed slots 333 are provided with labyrinth disc 33, and skewed slot 333 is outward-dipping so that gas is by oblique
Curl is discharged during groove, and relative to traditional gas sealing mechanism, it is more uniform that this programme discharges gas, so as to more uniformly
Hermetic seal is carried out to the whole circumference of machine tool chief axis.12 skewed slots are shown in the present embodiment in accompanying drawing 4B, but this 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 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 (6)
1. a kind of split type machine tool chief axis gas sealing mechanism, it is characterised in that the gas sealing mechanism includes being installed to the machine
End cap on bed main shaft, is provided with the first gas channel in the end cap, one end of first gas channel is communicated to air inlet
Mouthful, the other end of first gas channel is connected with the second gas channel in the end cap, and the end cap includes labyrinth disc
With labyrinth seat, in assembled state, the labyrinth disc is nested in the labyrinth seat and therefore in the labyrinth disc and institute
State and second gas channel is formed between the seat of labyrinth, gas enters first gas channel and passes through institute from the air inlet
State the discharge of the second gas channel；
The gas sealing mechanism also includes front end gas channel, and the front end gas channel is between the air inlet and described first
Between gas channel, for will be incorporated in first gas channel from the air-flow of the air inlet.
2. split type machine tool chief axis gas sealing mechanism according to claim 1, it is characterised in that the labyrinth seat includes holding
Receive groove, the labyrinth disc includes radially-outer surface and axially inner side face, when the labyrinth disc is nested in the labyrinth seat, institute
The radially-outer surface for stating labyrinth disc is in sealing contact with the medial wall of the holding tank, the axially inner side face of the labyrinth disc with it is described
The bottom surface of holding tank is collectively forming second gas channel.
3. split type machine tool chief axis gas sealing mechanism according to claim 2, it is characterised in that the axial direction of the labyrinth disc
Medial surface includes being provided with the sloping portion of at least one skewed slot, and the bottom surface of the holding tank also includes corresponding sloping portion,
When the labyrinth disc is nested in the labyrinth seat, sloping portion and the holding tank in the axially inner side face of the labyrinth disc
The sloping portion of bottom surface abut against each other so that the skewed slot constitutes the angled section of second gas channel.
4. split type machine tool chief axis gas sealing mechanism according to claim 3, it is characterised in that the axial direction of the labyrinth disc
Medial surface also includes vertical portion, and the bottom surface of the holding tank also includes corresponding vertical portion, when the labyrinth disc is nested in
When in the labyrinth seat, it is divided in the vertical portion in the axially inner side face of the labyrinth disc and the vertical portion of the bottom surface of the holding tank
Between form the first space, first space constitutes the vertical section of second gas channel.
5. split type machine tool chief axis gas sealing mechanism according to claim 4, it is characterised in that the skewed slot is relative to institute
The rotation axiss for stating labyrinth disc are obliquely arranged on the sloping portion in axially inner side face of the labyrinth disc.
6. split type machine tool chief axis gas sealing mechanism according to any one of claim 1 to 5, it is characterised in that described
Gas sealing mechanism also includes air pump, and the air pump is communicated to the air inlet, for being institute during the machine tool chief axis work
State gas sealing mechanism and protective gas is persistently provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973917.4U CN206175668U (en) | 2016-08-29 | 2016-08-29 | Split type lathe main shaft gas seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973917.4U CN206175668U (en) | 2016-08-29 | 2016-08-29 | Split type lathe main shaft gas seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175668U true CN206175668U (en) | 2017-05-17 |
Family
ID=60240034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620973917.4U Active CN206175668U (en) | 2016-08-29 | 2016-08-29 | Split type lathe main shaft gas seal device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206175668U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246923A (en) * | 2016-08-29 | 2016-12-21 | 北京超同步伺服股份有限公司 | Split type machine tool chief axis gas sealing mechanism |
| CN108317179A (en) * | 2018-03-09 | 2018-07-24 | 浙江顺联智能设备有限公司 | Fixing bearing case |
| TWI661898B (en) * | 2018-12-06 | 2019-06-11 | 御成工業有限公司 | Spindle structure |
| CN112747118A (en) * | 2020-12-30 | 2021-05-04 | 中南大学 | Shaft end sealing device of powder material mixing equipment and mounting method thereof |
-
2016
- 2016-08-29 CN CN201620973917.4U patent/CN206175668U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246923A (en) * | 2016-08-29 | 2016-12-21 | 北京超同步伺服股份有限公司 | Split type machine tool chief axis gas sealing mechanism |
| CN108317179A (en) * | 2018-03-09 | 2018-07-24 | 浙江顺联智能设备有限公司 | Fixing bearing case |
| TWI661898B (en) * | 2018-12-06 | 2019-06-11 | 御成工業有限公司 | Spindle structure |
| CN112747118A (en) * | 2020-12-30 | 2021-05-04 | 中南大学 | Shaft end sealing device of powder material mixing equipment and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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. |
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| CP03 | Change of name, title or address |