CN209050124U - A kind of axial seal of electro spindle - Google Patents
A kind of axial seal of electro spindle Download PDFInfo
- Publication number
- CN209050124U CN209050124U CN201821856203.0U CN201821856203U CN209050124U CN 209050124 U CN209050124 U CN 209050124U CN 201821856203 U CN201821856203 U CN 201821856203U CN 209050124 U CN209050124 U CN 209050124U
- Authority
- CN
- China
- Prior art keywords
- bearing
- screw thread
- gland nut
- wall
- front cover
- 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.)
- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Turning (AREA)
Abstract
The utility model provides a kind of axial seal of electro spindle, the bearing of armature spindle front end is by front cover axial limiting, sealing element is installed between front cover and bearing, the preceding shaft end of shaft is screwed with combined labyrinth and carbon gland nut, there are gaps between the outer wall of the combined labyrinth and carbon gland nut and the inner wall of front cover, the internal screw thread and armature spindle of combined labyrinth and carbon gland nut are cooperatively connected, and have external screw thread on the outer wall of combined labyrinth and carbon gland nut, the external screw thread and electro spindle are oppositely oriented.At the prior art back on the basis of runner sealing, devise the backpitch with sealing effect, a small amount of coolant liquid that the helical structure can effectively cannot prevent part back blade dynamic seal, it continues through backpitch structure and is transported to back blade suction inlet, to reach more effective sealing, it is ensured that main shaft long-term and effective operation.
Description
Technical field
The utility model relates to precision machine tool fields, and in particular to a kind of axial seal of electro spindle.
Background technique
The electro spindle that the equipment such as numerical control machining center use is the electro-mechanical system of high integration, and spindle motor unit is
The core element of machine tool, technical requirements are very stringent, and equipment precision is high.The optimization of the Seal Design of main shaft can be mentioned significantly
High electro spindle durability.Number machine tool chief axis while driving Tool in Cutting workpiece, equipment component must open cutting fluid flushing,
Cooling cutter and workpiece.In the environment of opposing seal, cutting fluid splashing, metal fillings or metallic dust etc. easily lead to cutting fluid
Or other impurities enter the possibility of main shaft built-in system.
Major part Seal Design mainly uses plane and axial labyrinth seal form at present, this scheme drawback is mainly a large amount of
When cutting fluid is rinsed, labyrinth seal, which cannot achieve, to be effectively isolated, self can not be discharged, be accumulated over a long period then to the coolant liquid of entrance
Cutting fluid is caused to enter bearing chamber, so as to cause machine tool mainshaft bearing failure, overhaul of the equipments.
Summary of the invention
The purpose of this utility model is to provide a kind of electric main shaft sealing constructions of good seal performance.
The technical solution that the utility model is taken are as follows:
A kind of axial seal of electro spindle, including body, armature spindle, the both ends of armature spindle are supported in body by bearing,
The two sides of the rear end bearing of armature spindle are limited respectively with locking nut and spring base, and locking nut is installed on armature spindle by screw thread
Rear end, spring terminal is fixedly installed in bearing block by screw, and the rear end face of body is equipped with rear sealing cover, armature spindle front end
Bearing is equipped with sealing element by front cover axial limiting between front cover and bearing, the preceding shaft end of shaft is screwed with combined labyrinth and carbon gland nut,
There are gap, the internal screw threads and armature spindle of combined labyrinth and carbon gland nut between the outer wall of the combined labyrinth and carbon gland nut and the inner wall of front cover
It is cooperatively connected, has external screw thread on the outer wall of combined labyrinth and carbon gland nut, the external screw thread and electro spindle are oppositely oriented.
Further, the front end of body is equipped with dustproof cover.
Further, the sealing element is back-blade seal.
After taking above technical scheme, the utility model has the following beneficial effects: in the base of prior art back runner sealing
On plinth, the backpitch with sealing effect is devised, which can effectively cannot hinder part back blade dynamic seal
A small amount of coolant liquid only continues through backpitch structure and is transported to back blade suction inlet, to reach more effective sealing, it is ensured that
Main shaft long-term and effective operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is details enlarged drawing.
Specific embodiment
Specific embodiment of the present utility model is further described below in conjunction with attached drawing:
A kind of axial seal of electro spindle, including body 1, armature spindle 2, the both ends of armature spindle 2 are supported on by coaxial bearing
In body 1, rotor coil is installed on armature spindle 2, body inner wall installs stator.The rear bearing 3 of the rear end of armature spindle 2 is by bearing block
4 are mounted in body 1, and rear bearing 3 is limited by locking nut 5 and spring base 6 from two sides in bearing block 4, and locking nut 5 passes through
Screw thread is installed on the rear end of armature spindle 2, and spring base 6 is fixedly installed in the end face of bearing block 4, spring base 6 and rear axle by screw
Sealing element 7 is installed, the rear end face of body 1 is equipped with two seals rear cover 8 between holding 3.The fore bearing 9 of 2 front end of armature spindle is by preceding
Lid 10 and body inner convex platform axial limiting are equipped with back-blade seal 11, the preceding shaft end of armature spindle 2 between front cover 10 and fore bearing 9
It is screwed with combined labyrinth and carbon gland nut 12, there are gap between the outer wall of combined labyrinth and carbon gland nut 12 and the inner wall of front cover, combined type is close
The internal screw thread and armature spindle 2 for sealing nut 12 are cooperatively connected, and have external screw thread 14, external screw thread 14 on the outer wall of combined labyrinth and carbon gland nut 12
It is opposite with electro spindle steering.The front end of body is equipped with dustproof cover 13, prevents dust from entering.
When armature spindle 2 rotates, the impurity or cutting fluid entered from 2 front end of armature spindle is from front cover 10 and combined labyrinth and carbon gland
When gap between nut 12 enters bearing, the reversed external screw thread 14 of 12 outer surface of combined labyrinth and carbon gland nut plays reversed derived
Effect, provides outside thrust, avoids the entrance of impurity.
Claims (3)
1. a kind of axial seal of electro spindle, including body, armature spindle, the both ends of armature spindle are supported in body by bearing, turn
The two sides of the rear end bearing of sub- axis are limited respectively with locking nut and spring base, and locking nut is installed on armature spindle by screw thread
Rear end, spring terminal are fixedly installed in bearing block by screw, and the rear end face of body is equipped with rear sealing cover, which is characterized in that turn
The bearing of sub- axis front end is equipped with sealing element by front cover axial limiting between front cover and bearing, the preceding shaft end of shaft is screwed with combination
Formula sealing nut, there are gap between the outer wall of the combined labyrinth and carbon gland nut and the inner wall of front cover, combined labyrinth and carbon gland nut it is interior
Screw thread and armature spindle are cooperatively connected, and have external screw thread, the external screw thread and electro spindle rotation direction phase on the outer wall of combined labyrinth and carbon gland nut
Instead.
2. a kind of axial seal of electro spindle according to claim 1, which is characterized in that the front end of body is equipped with dust-proof
Lid.
3. a kind of axial seal of electro spindle according to claim 1, which is characterized in that the sealing element is that back blade is close
Envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856203.0U CN209050124U (en) | 2018-11-12 | 2018-11-12 | A kind of axial seal of electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856203.0U CN209050124U (en) | 2018-11-12 | 2018-11-12 | A kind of axial seal of electro spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209050124U true CN209050124U (en) | 2019-07-02 |
Family
ID=67053151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821856203.0U Expired - Fee Related CN209050124U (en) | 2018-11-12 | 2018-11-12 | A kind of axial seal of electro spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209050124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317701A (en) * | 2018-11-12 | 2019-02-12 | 靖江斯贝得电机制造有限公司 | A kind of axial seal of electro spindle |
-
2018
- 2018-11-12 CN CN201821856203.0U patent/CN209050124U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317701A (en) * | 2018-11-12 | 2019-02-12 | 靖江斯贝得电机制造有限公司 | A kind of axial seal of electro spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20201112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |