CN202357254U - No-leakage bushing device of vacuum cavity - Google Patents
No-leakage bushing device of vacuum cavity Download PDFInfo
- Publication number
- CN202357254U CN202357254U CN2011204169148U CN201120416914U CN202357254U CN 202357254 U CN202357254 U CN 202357254U CN 2011204169148 U CN2011204169148 U CN 2011204169148U CN 201120416914 U CN201120416914 U CN 201120416914U CN 202357254 U CN202357254 U CN 202357254U
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- China
- Prior art keywords
- lining
- keyway
- cylinder
- inside wall
- bushing
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- 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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Abstract
The utility model provides a no-leakage bushing device of a vacuum cavity. The no-leakage bushing device comprises a bushing, wherein the bushing is movably matched with the inner wall of a mud cylinder; the bushing is of an integrated structure; and an anti-rotation device for preventing the bushing from rotating is arranged between the inner wall of the mud cylinder and the bushing. The no-leakage bushing device provided by the utility model has the advantages that the interchangeability is strong, the installation and the maintenance are convenient, the assembling accuracy is high, the occurrence of air leakage phenomenon is avoided, the structure is simple, the processing is convenient and the practicability is strong.
Description
Technical field
The utility model belongs to building material machinery field, and being specifically related to a kind of vacuum cavity does not have the leakage bushing device.
Background technology
Existing vacuum-extruder lining is typically designed to split type structure, and jackscrew prevents that fixedly lining from rotating, and its drawback is: the one, and jackscrew bearing leaks gas easily and has reduced vacuum; The 2nd, be difficult for changing, lining is a consumable accessory, and wearing and tearing are very fast, and often replacing causes stop work and production easily; The 3rd, be difficult for installing, in assembling process, be mostly to join and beat top wire hole, there is not interchangeability; The 4th, need cut into two after the whole machine-shaping, to be out of shape greatlyyer, precision reduces greatly, and the maintenance and installation difficulty wastes time and energy; Therefore be necessary to improve.
The utility model content
The technical problem that the utility model solves: provide a kind of vacuum cavity not have the leakage bushing device, lining adopts monolithic construction, and between the mud inside wall of cylinder and lining, establishes key and prevent that lining from rotating, and simple in structure, interchangeablity is strong, has higher utility.
The technical scheme that the utility model adopts: vacuum cavity does not have the leakage bushing device, comprises lining, said lining and the mud inside wall of cylinder movingly, said lining is a monolithic construction, is provided with the anti-rotation device that prevents the lining rotation between the said mud inside wall of cylinder and the lining.
Wherein, said anti-rotation device is a key, is shaped on keyway I on the said mud inside wall of cylinder, is shaped on the corresponding keyway II with keyway I on the said lining, and said key places in keyway I and the keyway II mud inside wall of cylinder and lining coupled together and prevents the lining rotation.
Further, said key is a flat key.
Further, symmetry is shaped on two keyway I on the said mud inside wall of cylinder, on the said lining symmetry be shaped on two with the corresponding keyway II of keyway I, said key places respectively in keyway I and the keyway II mud inside wall of cylinder and lining coupled together and prevents the lining rotation.
The utility model compared with prior art interchangeability is strong, and installation, maintenance is convenient, and assembly precision is high, and generation and its of stopping gas leak phenomenon are simple in structure, easy to process, practical.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
A kind of embodiment of the utility model is described below in conjunction with accompanying drawing 1.
Vacuum cavity does not have the leakage bushing device, comprises lining 2, and the said lining 2 and the mud inside wall of cylinder 1 are movingly; Said lining 2 is a monolithic construction, need not cut into two after the lining 2 whole machine-shapings, can artificially not increase deflection; Precision improves greatly, and maintenance and installation is easy, and is time saving and energy saving.Be provided with the anti-rotation device that prevents that lining 2 from rotating between the said mud inside wall of cylinder 1 and the lining 2.Specifically; Said anti-rotation device is a flat key 3; Be shaped on keyway I4 on the said mud inside wall of cylinder 1, be shaped on the corresponding keyway II5 with keyway I4 on the said lining 2, said flat key 3 places keyway I4 and the interior mud inside wall of cylinder 1 and lining 2 are coupled together of keyway II5 to prevent that lining 2 from rotating.
For guaranteeing the anti-rotation effect; Symmetry is shaped on two keyway I4 on the said mud inside wall of cylinder 1; Symmetry is shaped on two and the corresponding keyway II5 of keyway I4 on the said lining 2, and said key 3 places keyway I4 and the interior mud inside wall of cylinder 1 and lining 2 are coupled together of keyway II5 to prevent that lining 2 from rotating respectively.
The foregoing description, just the preferred embodiment of the utility model is not to be used for limiting the utility model practical range, so all equivalences of being done with the said content of the utility model claim change, all should be included within the utility model claim scope.
Claims (4)
1. vacuum cavity does not have the leakage bushing device; Comprise lining (2); The said lining (2) and the mud inside wall of cylinder (1) is characterized in that movingly: said lining (2) is monolithic construction, is provided with the anti-rotation device that prevents that lining (2) from rotating between the said mud inside wall of cylinder (1) and the lining (2).
2. vacuum cavity according to claim 1 does not have the leakage bushing device; It is characterized in that: said anti-rotation device is key (3); Be shaped on keyway I (4) on the said mud inside wall of cylinder (1); Be shaped on the said lining (2) and the corresponding keyway II of keyway I (4) (5), said key (3) places in keyway I (4) and the keyway II (5) the mud inside wall of cylinder (1) and lining (2) coupled together and prevents lining (2) rotation.
3. vacuum cavity according to claim 2 does not have the leakage bushing device, it is characterized in that: said key (3) is a flat key.
4. there is not the leakage bushing device according to claim 2 or 3 described vacuum cavities; It is characterized in that: the said mud inside wall of cylinder (1) is gone up symmetry and is shaped on two keyway I (4); Said lining (2) go up symmetry be shaped on two with the corresponding keyway II of keyway I (4) (5), said key (3) places respectively in keyway I (4) and the keyway II (5) the mud inside wall of cylinder (1) and lining (2) coupled together and prevents lining (2) rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204169148U CN202357254U (en) | 2011-10-27 | 2011-10-27 | No-leakage bushing device of vacuum cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204169148U CN202357254U (en) | 2011-10-27 | 2011-10-27 | No-leakage bushing device of vacuum cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202357254U true CN202357254U (en) | 2012-08-01 |
Family
ID=46568467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204169148U Expired - Fee Related CN202357254U (en) | 2011-10-27 | 2011-10-27 | No-leakage bushing device of vacuum cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202357254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908160A (en) * | 2015-07-06 | 2015-09-16 | 魏洪校 | Extruding device and assembly technique thereof |
| CN106965296A (en) * | 2017-05-18 | 2017-07-21 | 侯亮亮 | Wave mud cylinder liner for brick and tile extruding machine |
-
2011
- 2011-10-27 CN CN2011204169148U patent/CN202357254U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908160A (en) * | 2015-07-06 | 2015-09-16 | 魏洪校 | Extruding device and assembly technique thereof |
| CN106346604A (en) * | 2015-07-06 | 2017-01-25 | 魏洪校 | Assembly process of extrusion equipment |
| CN106965296A (en) * | 2017-05-18 | 2017-07-21 | 侯亮亮 | Wave mud cylinder liner for brick and tile extruding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20131027 |