CN210549558U - Tooth sealing finish turning inner diameter clamp of centrifugal machine - Google Patents
Tooth sealing finish turning inner diameter clamp of centrifugal machine Download PDFInfo
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- CN210549558U CN210549558U CN201921363358.5U CN201921363358U CN210549558U CN 210549558 U CN210549558 U CN 210549558U CN 201921363358 U CN201921363358 U CN 201921363358U CN 210549558 U CN210549558 U CN 210549558U
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Abstract
The utility model relates to a sealed finish turning internal diameter anchor clamps of centrifuge sparse tooth, a serial communication port, include: the inner diameter of the centering disc is positioned according to the outer diameter of a workpiece, and the workpiece is arranged in the centering disc; the gland presses the end face of the workpiece to clamp the workpiece; the centering disc and the gland are embedded and fixed in opposite directions to form a three-order cavity for clamping a workpiece. The beneficial effects of the utility model reside in that: the special tool clamp is reasonable in design and simple and reliable in structure.
Description
Technical Field
The utility model relates to an anchor clamps especially relate to centrifuge dredges sealed finish turning internal diameter anchor clamps of tooth.
Background
In the prior art, the labyrinth seal material of the inlet spare part of the centrifuge is usually cast aluminum, and H in the medium of the inlet of the centrifuge2The S content is higher and is maintained to be more than 1.1% (v/v) and up to 7.4% (v/v), and CO2The content is also above 1% (v/v), the temperature is between 40 ℃ and 60 ℃, and the small amount of water present in the medium is present in the form of condensate and wet steam.
The labyrinth seal material of the inlet spare part of the centrifuge is very easy to passivate in the oxidizing medium to generate compact Al2O3And (5) protecting the film. But in H2O and H2S+CO2Environment(s)And then, after an oxidation film formed before the surface of the aluminum comb teeth is installed is scoured, abraded and damaged by coke powder impurities in the medium in the operation process, enough oxidizing medium does not exist in the environment, so that the oxidation film cannot be automatically repaired and loses the protection effect. Severe electrochemical corrosion is generated, the comb teeth are corroded flatly, and the labyrinth seal fails.
Although the cast aluminum material is processed by means of aluminum alloy or babbitt alloy spraying on the surface, the effect is not ideal. Therefore, the modification of the centrifugal machine sparse tooth sealing milling machine process and the special tool clamp for machining involved in the process is urgently needed.
Disclosure of Invention
The utility model aims to solve the technical problem that a centrifuge dredges sealed finish turning internal diameter anchor clamps of tooth is provided.
The utility model discloses a realize through following technical scheme: the design is a centrifugal machine sparse tooth sealing finish turning inner diameter clamp, which is characterized by comprising:
the inner diameter of the centering disc is positioned according to the outer diameter of a workpiece, and the workpiece is arranged in the centering disc;
the gland presses the end face of the workpiece to clamp the workpiece;
the centering disc and the gland are embedded and fixed in opposite directions to form a three-step cavity for clamping a workpiece.
Furthermore, a stepped cavity is formed in the center of the centering disc, the inner diameter of the stepped cavity is matched with the outer diameter of the workpiece, and the workpiece is sleeved in the stepped cavity.
Furthermore, a second-order stepped cavity is arranged in the centering disc, the inner diameters of the first-order stepped cavity and the second-order stepped cavity are sequentially increased, an open groove is formed in the gland, and the outer diameter of the second-order stepped cavity is exactly matched with the inner diameter of the open groove of the gland.
Furthermore, a gap is formed between the end side of the opening groove of the gland and the inner wall of the second-step stepped cavity.
Furthermore, the axial distance between the centering disc and the gland can be adjusted, so that the requirements of workpieces with different axial lengths are met.
Further, the finish turning inner diameter fixture is turned on a lathe to be corrected and clamped, and a step surface at one end of the centering disc is clamped.
The beneficial effects of the utility model reside in that: the special tool clamp is reasonable in design and simple and reliable in structure.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The notation in the figure is:
1 is a centering disc and 2 is a gland.
Detailed Description
The technical solution of the present invention is further explained below with reference to the accompanying drawings, which are believed to be clear to those skilled in the art.
Example one
As shown in fig. 1, a centrifugal machine sparse tooth sealing finish turning inner diameter clamp comprises:
the inner diameter of the centering disc 1 is positioned by the outer diameter of a workpiece, and the workpiece is arranged in the centering disc 1; as shown in the figure, a stepped cavity is arranged in the center of the centering disc 1, the inner diameter of the stepped cavity is matched with the outer diameter of a workpiece, and the workpiece is sleeved in the stepped cavity to realize positioning.
The gland 2 presses the end face of the workpiece to clamp the workpiece; furthermore, the end side of the gland is provided with a chamfer.
The centering disc 1 and the gland 2 are embedded and fixed oppositely to form a three-step cavity for clamping a workpiece. Specifically, a second-step stepped cavity is arranged in the centering disc, the inner diameters of the first-step stepped cavity and the second-step stepped cavity are sequentially increased, the gland is provided with an open groove, and the outer diameter of the second-step stepped cavity is just matched with the inner diameter of the open groove of the gland.
Furthermore, a gap is formed between the end side of the opening groove of the gland and the inner wall of the second-step stepped cavity.
Example two
On the basis of the first embodiment, further, the axial distance between the centering disc and the gland is designed into an adjustable structure, so that the requirements of workpieces with different axial lengths are met. The workpiece clamping fixture can be adjusted according to the length of the workpiece.
When in use, finish turning the inner diameter is taken as an example
firstly, finely turning an inner diameter fixture, aligning and clamping on a lathe, and clamping a step surface at one end of a centering disc.
positioning the workpiece with the outer diameter, and pressing the end face by a gland to clamp the workpiece;
and thirdly, finely turning the sizes of all parts of the inner diameter according to the drawing until the drawing requirements are met.
Claims (6)
1. The utility model provides a centrifuge dredges sealed finish turning internal diameter anchor clamps of tooth, its characterized in that includes:
the inner diameter of the centering disc is positioned according to the outer diameter of a workpiece, and the workpiece is arranged in the centering disc;
the gland presses the end face of the workpiece to clamp the workpiece;
the centering disc and the gland are embedded and fixed in opposite directions to form a three-step cavity for clamping a workpiece.
2. The fixture of claim 1, wherein a stepped cavity is formed in the center of the centering plate, the inner diameter of the stepped cavity is adapted to the outer diameter of the workpiece, and the workpiece is sleeved in the stepped cavity.
3. The tooth thinning sealing finish turning inner diameter clamp of the centrifugal machine as claimed in claim 1 or 2, wherein a second step cavity is arranged in the centering disc, the inner diameters of the first step cavity and the second step cavity become larger in sequence, the gland is provided with an open slot, and the outer diameter of the second step cavity is just matched with the inner diameter of the open slot of the gland.
4. The tooth thinning sealing finish turning inner diameter clamp of the centrifugal machine as claimed in claim 3, wherein a gap is provided between the end side of the opening groove of the gland and the inner wall of the second step stepped cavity.
5. The tooth thinning sealing finish turning inner diameter clamp of the centrifugal machine as claimed in claim 1, wherein the axial distance between the centering disc and the gland is adjustable to meet the requirements of workpieces with different axial lengths.
6. The fine turning inner diameter fixture for the tooth thinning seal of the centrifugal machine as claimed in claim 1, wherein the fine turning inner diameter fixture is used for lathe correction clamping to clamp the step surface at one end of the centering disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921363358.5U CN210549558U (en) | 2019-08-21 | 2019-08-21 | Tooth sealing finish turning inner diameter clamp of centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921363358.5U CN210549558U (en) | 2019-08-21 | 2019-08-21 | Tooth sealing finish turning inner diameter clamp of centrifugal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210549558U true CN210549558U (en) | 2020-05-19 |
Family
ID=70674568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921363358.5U Active CN210549558U (en) | 2019-08-21 | 2019-08-21 | Tooth sealing finish turning inner diameter clamp of centrifugal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210549558U (en) |
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2019
- 2019-08-21 CN CN201921363358.5U patent/CN210549558U/en active Active
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