CN205066800U - A labyrinth seals device that is used for no shaft encoder of lathe main shaft - Google Patents
A labyrinth seals device that is used for no shaft encoder of lathe main shaft Download PDFInfo
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- CN205066800U CN205066800U CN201520865855.0U CN201520865855U CN205066800U CN 205066800 U CN205066800 U CN 205066800U CN 201520865855 U CN201520865855 U CN 201520865855U CN 205066800 U CN205066800 U CN 205066800U
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- encoder
- sealing ring
- labyrinth
- main shaft
- road
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a labyrinth seals device that is used for no shaft encoder of lathe main shaft belongs to the labyrinth seals device, including encoder main part, encoder main shaft, encoder shell and encoder main part fixed connection, incurvated way sealing ring and encoder main shaft fixed connection, there is the labyrinth sealing structure in the encoder main part with this incurvated way sealing ring department of correspondence, this labyrinth sealing structure and the mutual crisscross and contactless of incurvated way sealing ring, the clearance is left to the centre, forms the labyrinth seals structure, outer labyrinth sealing ring and encoder main shaft fixed connection, the encoder shell with should outer labyrinth sealing ring correspond department have the labyrinth sealing structure, the 2 mutual just contactlesss that interlock are encircled with outer labyrinth sealing to this labyrinth sealing structure, clearance, formation labyrinth seals structure are left to the centre. The advantage is novel structure, saves space, sealed loop is long, durable degree is high, has strengthened the ability that the encoder adapts to the environment greatly.
Description
Technical field
The utility model belongs to a kind of labyrinth gland, refers in particular to the labyrinth gland without shaft encoder for machine tool chief axis.
Background technology
Scrambler is a kind of high-precision sensor.In recent years, along with the development of numerically-controlled machine, the requirement of scrambler is also being improved constantly.It requires that scrambler is while precision improves constantly, and also will strengthen the protection of self.The sealing means of current encoder device mainly contains following several, and one is and main shaft contact seal, and this sealing means easily causes the staring torque of main shaft excessive, after long-time use, O-ring seal easily gets loose, rubber scraps easily immerses scrambler, loss of seal function, as shown in Figure 2.One leaves gap between main shaft, the weak effect of this sealing, tiny chip and oil droplet cannot be stoped to enter scrambler, do not reach the requirement used on lathe, as shown in Figure 3.A kind of have projection, the groove on O-ring seal and male cooperation for rear-end of spindle, and the installation of this sealing means to O-ring seal proposes higher requirement, easily causes main shaft to rotate not freely, lose more than gain, as shown in Figure 4 after installation.So active demand a can be effectively antifouling and do not hinder the packoff that main shaft rotates.
Summary of the invention
The utility model provides a kind of labyrinth gland without shaft encoder for machine tool chief axis, to solve current oil-stain-preventing weak effect, the life-span is short, rotary resistance is large problem.
The technical scheme that the utility model is taked is: comprise encoder main body, scrambler main shaft, scrambler shell is fixedly connected with encoder main body, introversion road sealing ring is fixedly connected with scrambler main shaft, labyrinth seal structure is had at encoder main body and this sealing ring corresponding position, introversion road, this labyrinth seal structure is interlaced with introversion road sealing ring and do not contact, and gap is left in centre, forms labyrinth seal structure; Outcurve road sealing ring is fixedly connected with scrambler main shaft, has labyrinth seal structure at scrambler shell and this sealing ring corresponding position, outcurve road, and this labyrinth seal structure is interlaced with outcurve road sealing ring 2 and do not contact, and gap is left in centre, forms labyrinth seal structure.
Outcurve road described in the utility model sealing ring is metalwork.
Introversion road described in the utility model sealing ring is metalwork.
The utility model has the advantages that: novel structure, adopt two labyrinth seal rings, two labyrinth seal rings are interlaced with shell with main body respectively and do not contact, gap is left in centre, form labyrinth seal structure, and adopt metalwork can not produce the pollutant of rubber like chip, save space, sealing loop is long, durability degree is high, greatly strengthen the ability that scrambler conforms.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is existing structure schematic diagram in background technology, its middle shell 1, O-ring seal 2, main body 3, main shaft 4;
Fig. 3 is existing structure schematic diagram in background technology, its middle shell 1, O-ring seal 2, main body 3, main shaft 4;
Fig. 4 is existing structure schematic diagram in background technology, its middle shell 1, O-ring seal 2, main body 3, main shaft 4.
Embodiment
Comprise encoder main body 3, scrambler main shaft 4, scrambler shell 1 is fixedly connected with encoder main body 3, introversion road sealing ring 5 is fixedly connected with scrambler main shaft 4, labyrinth seal structure 301 is had in encoder main body 3 and this sealing ring 5 corresponding position, introversion road, this labyrinth seal structure 301 is interlaced with introversion road sealing ring 5 and do not contact, and gap is left in centre, forms labyrinth seal structure; Outcurve road sealing ring 2 is fixedly connected with scrambler main shaft 4, labyrinth seal structure 101 is had in scrambler shell 1 and this sealing ring 2 corresponding position, outcurve road, this labyrinth seal structure 101 is interlaced with outcurve road sealing ring 2 and do not contact, and gap is left in centre, forms labyrinth seal structure.
Outcurve road described in the utility model sealing ring 2 is metalwork.
Introversion road described in the utility model sealing ring 5 is metalwork.
Claims (3)
1. the labyrinth gland without shaft encoder for machine tool chief axis, comprise encoder main body, scrambler main shaft, scrambler shell is fixedly connected with encoder main body, it is characterized in that: introversion road sealing ring is fixedly connected with scrambler main shaft having labyrinth seal structure at encoder main body and this sealing ring corresponding position, introversion road, this labyrinth seal structure is interlaced with introversion road sealing ring and do not contact, gap is left in centre, forms labyrinth seal structure; Outcurve road sealing ring is fixedly connected with scrambler main shaft, has labyrinth seal structure at scrambler shell and this sealing ring corresponding position, outcurve road, and this labyrinth seal structure is interlaced with outcurve road sealing ring and do not contact, and gap is left in centre, forms labyrinth seal structure.
2. a kind of labyrinth gland without shaft encoder for machine tool chief axis according to claim 1, is characterized in that: described outcurve road sealing ring is metalwork.
3. a kind of labyrinth gland without shaft encoder for machine tool chief axis according to claim 1, is characterized in that: described introversion road sealing ring is metalwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865855.0U CN205066800U (en) | 2015-11-03 | 2015-11-03 | A labyrinth seals device that is used for no shaft encoder of lathe main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865855.0U CN205066800U (en) | 2015-11-03 | 2015-11-03 | A labyrinth seals device that is used for no shaft encoder of lathe main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066800U true CN205066800U (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520865855.0U Active CN205066800U (en) | 2015-11-03 | 2015-11-03 | A labyrinth seals device that is used for no shaft encoder of lathe main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941252A (en) * | 2017-12-28 | 2018-04-20 | 长春禹衡光学有限公司 | A kind of grating angle encoder |
| CN117870741A (en) * | 2024-03-13 | 2024-04-12 | 长春禹衡光学有限公司 | Grating encoder protection system and encoder |
-
2015
- 2015-11-03 CN CN201520865855.0U patent/CN205066800U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941252A (en) * | 2017-12-28 | 2018-04-20 | 长春禹衡光学有限公司 | A kind of grating angle encoder |
| CN117870741A (en) * | 2024-03-13 | 2024-04-12 | 长春禹衡光学有限公司 | Grating encoder protection system and encoder |
| CN117870741B (en) * | 2024-03-13 | 2024-05-17 | 长春禹衡光学有限公司 | Grating encoder protection system and encoder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |