CN209012270U - A kind of electro spindle head bearings novel sealing structure - Google Patents
A kind of electro spindle head bearings novel sealing structure Download PDFInfo
- Publication number
- CN209012270U CN209012270U CN201821686395.5U CN201821686395U CN209012270U CN 209012270 U CN209012270 U CN 209012270U CN 201821686395 U CN201821686395 U CN 201821686395U CN 209012270 U CN209012270 U CN 209012270U
- Authority
- CN
- China
- Prior art keywords
- sealing
- electro spindle
- main shaft
- head bearings
- spindle head
- 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.)
- Active
Links
Abstract
A kind of electro spindle head bearings novel sealing structure, including head bearings seat, main shaft, sealing gland, reinforcement sealing ring, sealing nut, dustproof cover；Its cooperation for passing through sealing gland, reinforcing four sealing ring, sealing nut and dustproof cover obturators; three labyrinth seal structures are formd on electro spindle head; existing one of labyrinth seal structure in electro spindle head is compared, the seal protection to electro spindle head bearings is greatly improved；Three labyrinth sealings simultaneously are using helical groove structure, helicla flute rotation direction is opposite with main shaft direction of rotation, internal gas flow is driven to flow along helicla flute when main shaft rotates, form the air-flow to electro spindle flows outside, it prevents emulsion from entering inside electro spindle, further improves the sealing effect of electro spindle head bearings.It using the electro spindle head bearings novel sealing structure, can greatly improve the sealing performance of electro spindle head bearings sealing structure, improve the service life of electro spindle, reduce enterprise's production cost.
Description
Technical field
The utility model relates to bearing grindings to process electricity consumption spindle technology field, and in particular to a kind of electro spindle head bearings
Novel sealing structure.
Background technique
Known, the bearing seal of existing electro spindle head, tail both ends is using the labyrinth type between sealing gland and main shaft
Sealing, only a seal structures.In actual work, spindle nose installation grinding wheel carries out grinding to bearing ring and adds electro spindle
Work needs in Grinding Process spray emulsion to cool down bearing ring.Therefore electro spindle head working environment is disliked very much
Bad, emulsion, which can be entered by only one of labyrinth sealing inside electro spindle, makes head bearings lubrication failure, finally leads
Send a telegraph spindle nose burn-out of bearing.
Summary of the invention
According to the sealing structure for the existing electro spindle head bearings mentioned in background technique, because sealing gland and main shaft it
Between only one of labyrinth sealing, emulsion enters the problem of causing head bearings to be burnt inside electro spindle, and the utility model is public
A kind of electro spindle head bearings novel sealing structure has been opened, by sealing gland, has reinforced sealing ring, sealing nut and dustproof cover
The cooperation of four obturators forms three labyrinth seal structures on electro spindle head, greatly improves to electro spindle head
The seal protection of portion's bearing；Three labyrinth sealings simultaneously are using helical groove structure, helicla flute rotation direction and main shaft rotation side
To on the contrary, the internal gas flow that drives is flowed along helicla flute when main shaft rotates, the air-flow to main shaft flows outside is formd, cream is prevented
Change liquid to enter inside electro spindle, further improves the sealing effect of electro spindle head bearings.
In order to realize the goal of the invention, the utility model adopts the following technical solution: a kind of electro spindle head bearings are new
Type sealing structure, the electro spindle include housing, head bearings, main shaft；Its head bearings novel sealing structure is characterized in: packet
It includes head bearings seat, main shaft, sealing gland, reinforce sealing ring, sealing nut, dustproof cover；The head bearings seat is annulus set,
Outside interposition is equipped with connecting flange, and there is step surface in inner hole tail portion, and head end has threaded hole, the tail portion insertion of head bearings seat
In electro spindle housing inner hole, linked together by flange and electro spindle housing；The a pair of bearings on electro spindle head is mounted on head
In portion's inner hole of bearing seat, head bearings seat inner hole tail portion step surface is used for the axially position of bearing outside；The main shaft is step
Axis, main shaft successively have annular groove, screw thread, Gewindefreistiche, bearing mounting surface, bearing positioning table terrace from head to tail portion；It is main
Axis is mounted in the bearing inner sleeve hole on electro spindle head with bearing mounting surface, does axially position with bearing positioning table terrace；It is described
Sealing gland is flange plate-like, and sealing gland front end face has annular seal groove, and there are step, the step surface of sealing gland rear end in rear end
It is inserted into the inner hole of head bearings seat, sealing gland is linked together by bolt and head bearings seat, step end face compression axis
Hold housing；The reinforcement sealing ring is annulus sleeve-shaped, and outside cylindrical surface is machined with helicla flute, reinforces sealing ring setting and is sealing
Between the inner hole of gland and the bearing mounting surface of main shaft, reinforce the helicla flute on cylindrical surface and the inner hole of sealing gland on the outside of sealing ring
First of labyrinth seal structure is cooperatively formed；The sealing nut is annulus set with the level, and outside step circles cylinder is equal
It is machined with helicla flute, inside aperture is threaded, close to head on the screw thread and main shaft that sealing nut passes through inside aperture
It is threadedly engaged, is fixed on main shaft, sealing nut inner side step end face, which compresses, reinforces sealing ring, and tail end annulus protrudes into sealing gland
In the annular seal groove of front end face；On the outside of sealing nut tail end outside the seal groove of the helicla flute on cylindrical surface and sealing gland front end face
Side cooperation, forms second labyrinth seal structure；The dustproof cover is the round shield of middle with hole, dustproof cover set
Outside sealing gland, linked together by bolt and sealing gland, it is small on the outside of the circular hole and sealing nut among dustproof cover
Helicla flute cooperation on cylindrical surface, forms third road labyrinth seal structure.
To be further improved technical solution, the outer side stage of helicla flute, sealing nut for reinforcing cylindrical surface on the outside of sealing ring
The helicla flute on rank cylindrical surface, rotation direction and main shaft direction of rotation on the contrary, drive electro spindle internal gas flow along spiral shell as the spindle turns
Spin slot flowing, forms the air-flow from being flowed in electro spindle to outside electro spindle, prevents emulsion from entering inside electro spindle, further
Promote the sealing effect of electro spindle head bearings.
Further, the bearing mounting surface of the inner circle hole face for reinforcing sealing ring and main shaft is transition fit.
Further, the circular hole of helicla flute top surface and sealing gland is matched on cylindrical surface for gap on the outside of the reinforcement sealing ring
It closes.
Further, each mating surface that sealing nut tail portion annulus protrudes into the annular seal groove of sealing gland front end face is
Clearance fit.
Further, the circular hole on the outside of sealing nut on small cylindrical surface among helicla flute top surface and dustproof cover is matched for gap
It closes.
Further, dustproof cover is covered in the part of sealing gland, is matched and is combined into transition fit.
Due to the adoption of the technical scheme as described above, the utility model has the following beneficial effects: it is described in the utility model
A kind of electro spindle head bearings novel sealing structure, by sealing gland, reinforce sealing ring, sealing nut and dustproof cover four
The cooperation of a obturator forms three labyrinth seal structures on electro spindle head, compares existing electro spindle head one
Road labyrinth seal structure greatly improves the seal protection to electro spindle head bearings；Three labyrinth sealings simultaneously use
Be helical groove structure, helicla flute rotation direction and main shaft direction of rotation on the contrary, the internal gas flow that is driven when rotating of main shaft along helicla flute
Flowing forms the air-flow to electro spindle flows outside, prevents emulsion from entering inside electro spindle, further improves electro spindle
The sealing effect of head bearings.Using the electro spindle head bearings novel sealing structure, it can greatly improve electro spindle head bearings
The sealing performance of sealing structure, improves the service life of electro spindle, to reduce enterprise's production cost.
Detailed description of the invention
Fig. 1 is electro spindle head bearings novel sealing structure schematic diagram.
In figure: 1, sealing gland；2, reinforce sealing ring；3, sealing nut；4, dustproof cover；5, main shaft；6, head bearings seat.
Specific embodiment
By the following examples can detailed explanation the utility model, open the purpose of this utility model is intended to protect
All technological improvements in the scope of the utility model.
A kind of electro spindle head bearings novel sealing structure, including head bearings seat, main shaft, sealing gland, reinforcement sealing
Ring, sealing nut, dustproof cover；In the tail end insertion electro spindle housing inner hole of the head bearings seat, pass through flange and electro spindle
Housing links together；The a pair of bearings on electro spindle head is mounted in head bearings seat inner hole；The main shaft is mounted on electric master
In the bearing inner sleeve hole of shaft head, axially position is done with bearing positioning table terrace；The step surface of the sealing gland rear end is inserted into
In the inner hole of head bearings seat, sealing gland is linked together by bolt and head bearings seat, and step end face compresses outside bearing
Set；The reinforcement sealing ring is arranged between the inner hole of sealing gland and the bearing mounting surface of main shaft, reinforces circle on the outside of sealing ring
The helicla flute of cylinder and the inner hole of sealing gland form first of labyrinth seal structure；The sealing nut passes through interior
Being threadedly engaged close to head, is fixed on main shaft on the screw thread and main shaft of side aperture, and sealing nut inner side step end face compresses
Reinforce sealing ring, tail end annulus protrudes into the annular seal groove of sealing gland front end face；Sealing nut lateral tail cylindrical surface
The seal groove lateral surface of helicla flute and sealing gland front end face cooperates, and forms second labyrinth seal structure；It is described dust-proof
Lid covers outside sealing gland, is linked together by bolt and sealing gland, outside the circular hole and sealing nut among dustproof cover
Helicla flute cooperation on the small cylindrical surface of side, forms third road labyrinth seal structure.What three labyrinth sealings simultaneously used
Helical groove structure, helicla flute rotation direction and main shaft direction of rotation on the contrary, the internal gas flow that is driven when rotating of main shaft along helicla flute stream
It is dynamic, the air-flow to electro spindle flows outside is formd, prevents emulsion from entering inside electro spindle, further improves electro spindle head
The sealing effect of portion's bearing.
Special instruction, the term " head " being previously mentioned in the description of the present invention, " tail portion ", " front end ", " rear end "
Deng indicating that the description of direction or positional relationship is the positional relationship of electro spindle head based on attached drawing, tail portion, it is merely for convenience of
The electro spindle head bearings sealing structure of the utility model is described, therefore should not be understood as the limitation created to the utility model.
The non-detailed portion of the utility model is the existing well-known technique of electro spindle, therefore the utility model is not described in detail.
More than, the only preferable specific embodiment of the utility model, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, skill according to the present invention
Art scheme and its utility model design are subject to equivalent substitution or change, should be covered within the scope of the utility model.
Claims (7)
1. a kind of electro spindle head bearings novel sealing structure, the electro spindle includes electro spindle housing, head and tail bearing
And main shaft；Its head bearings sealing structure is characterized in: including head bearings seat (6), main shaft (5), sealing gland (1), reinforcing
Sealing ring (2), sealing nut (3), dustproof cover (4)；The head bearings seat (6) is annulus set, and outside middle position is disposed with
There are step surface in connecting flange, inner hole tail portion, and head end has threaded hole, and electro spindle housing is inserted into the tail portion of head bearings seat (6)
In inner hole, linked together by flange with bolt and electro spindle housing；The a pair of bearings on electro spindle head is mounted on head shaft
It holds in seat (6) inner hole, head bearings seat (6) inner hole tail portion step surface is used for the axially position of bearing outside；The main shaft (5) is
Step Shaft, main shaft (5) successively have annular groove, screw thread, Gewindefreistiche, bearing mounting surface, bearing positioning table from head to tail portion
Terrace；Main shaft (5) bearing mounting surface is mounted in the bearing inner sleeve hole on electro spindle head, and it is axial fixed to make of bearing positioning table terrace
Position；The sealing gland (1) is flange plate-like, and sealing gland (1) front end face has annular seal groove, and there are step, sealing pressure in rear end
It covers in the inner hole of step surface insertion head bearings seat (6) of (1) rear end, sealing gland (1) passes through bolt and head bearings seat (6)
It links together, step end face compresses bearing outside；The reinforcement sealing ring (2) is annulus tubular, and outside cylindrical surface is machined with
Helicla flute is reinforced sealing ring (2) and is arranged between the inner hole and main shaft (5) of sealing gland (1)；The sealing nut (3) is band
The annulus set of step, outside step circles cylinder are machined with helicla flute, and inside aperture is threaded, and sealing nut (3) passes through
The screw thread of inside aperture and being threadedly engaged close to head on main shaft (5), are fixed on main shaft, sealing nut (3) inner side step
End face, which compresses, reinforces sealing ring (2), and tail end annulus protrudes into the annular seal groove of sealing gland (1) front end face；The dustproof cover
It (4) is the round shield of middle with hole, dustproof cover (4) is covered in sealing gland (1) outside, passes through bolt and sealing gland (1)
It links together, the intermediate circular hole of dustproof cover (4) is located at the helicla flute on the outside of sealing nut (3) on small cylindrical surface.
2. electro spindle head bearings novel sealing structure according to claim 1, it is characterized in that: the reinforcement sealing ring (2)
The helicla flute of step circles cylinder, rotation direction and main shaft direction of rotation phase on the outside of the helicla flute on outside cylindrical surface, sealing nut (3)
Instead.
3. electro spindle head bearings novel sealing structure according to claim 1, it is characterized in that: the reinforcement sealing ring (2)
Inner circle hole face and main shaft (5) bearing mounting surface be transition fit.
4. electro spindle head bearings novel sealing structure according to claim 1, it is characterized in that: the reinforcement sealing ring (2)
The circular hole of helicla flute top surface and sealing gland (1) is clearance fit on the cylindrical surface of outside.
5. electro spindle head bearings novel sealing structure according to claim 1, it is characterized in that: sealing nut (3) tail portion circle
It is clearance fit that ring, which protrudes into each mating surface in the annular seal groove of sealing gland (1) front end face,.
6. electro spindle head bearings novel sealing structure according to claim 1, it is characterized in that: small on the outside of sealing nut (3)
The circular hole of helicla flute top surface and dustproof cover (4) centre is clearance fit on cylindrical surface.
7. electro spindle head bearings novel sealing structure according to claim 1, it is characterized in that: dustproof cover (4) is covered and sealed
The part of gland (1) matches and is combined into transition fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821686395.5U CN209012270U (en) | 2018-10-09 | 2018-10-09 | A kind of electro spindle head bearings novel sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821686395.5U CN209012270U (en) | 2018-10-09 | 2018-10-09 | A kind of electro spindle head bearings novel sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012270U true CN209012270U (en) | 2019-06-21 |
Family
ID=66838902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821686395.5U Active CN209012270U (en) | 2018-10-09 | 2018-10-09 | A kind of electro spindle head bearings novel sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209012270U (en) |
-
2018
- 2018-10-09 CN CN201821686395.5U patent/CN209012270U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209012270U (en) | A kind of electro spindle head bearings novel sealing structure | |
| CN208904826U (en) | A kind of wheel hub electric motor of electric vehicle of replaceable higher temperature line | |
| CN101767296B (en) | Main shaft recovery machine | |
| CN208409569U (en) | A kind of vertical direct coupled machinery bistrique | |
| CN207496404U (en) | A kind of vehicle bridge for carrying central air-charging and air-discharging system | |
| CN212690944U (en) | One-way filtering check valve | |
| CN109882605A (en) | A kind of high pressure cock-type shut-off valve | |
| CN215059105U (en) | Altitude valve and air spring suspension system | |
| CN107914528A (en) | A kind of vehicle bridge for carrying central air-charging and air-discharging system | |
| CN202910307U (en) | Gun-drill mechanical main shaft | |
| CN208845729U (en) | A kind of axle sealing structure of condiment oil tank | |
| CN207642910U (en) | A kind of double-end polishing machine electro spindle | |
| CN205663626U (en) | Double suction centrifugal pump is driven to horizontal axle | |
| CN206608401U (en) | A kind of hydraulic support column seal with annular groove attachment structure | |
| CN206111645U (en) | Assembled centrifugal compressor adjusting shim | |
| CN206539532U (en) | A kind of machine seals axle sleeve | |
| CN205533421U (en) | Water pump assembly of engine of motorcycle | |
| CN207835288U (en) | A kind of hollow shaft motor | |
| CN215110635U (en) | Quick-change long rod ball valve | |
| CN219975337U (en) | Double-lip dustproof oil seal | |
| CN219254146U (en) | Vertical and horizontal spindle sealing structure | |
| CN220770261U (en) | Novel water inlet valve | |
| CN219888319U (en) | Electronic water pump water inlet bearing seat | |
| CN215949854U (en) | Anti-corrosion centrifugal pump | |
| CN208670234U (en) | A kind of New type finger worm wheel head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |