CN204327095U - A kind of development machine three sleeve - Google Patents
A kind of development machine three sleeve Download PDFInfo
- Publication number
- CN204327095U CN204327095U CN201420680508.6U CN201420680508U CN204327095U CN 204327095 U CN204327095 U CN 204327095U CN 201420680508 U CN201420680508 U CN 201420680508U CN 204327095 U CN204327095 U CN 204327095U
- Authority
- CN
- China
- Prior art keywords
- urceolus
- utility
- model
- development machine
- overcoat
- 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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- Laminated Bodies (AREA)
Abstract
The utility model discloses a kind of development machine three sleeve; comprise inner core (1); described inner core (1) overcoat has urceolus (2); described urceolus (2) overcoat has protection cylinder (3); it is characterized in that: described urceolus (2) inwall is provided with multiple wear-resisting copper sheathing (4), in described wear-resisting copper sheathing (4), be provided with copper alloy layer (4-1) and feather key (4-2).The beneficial effects of the utility model are: for reducing the frictional force in three slip expansion processes, the thick copper alloy of attached one deck 3-5mm is welded at the outer tube inner wall of three sleeves, and the feather key led by three long keys forms an attached sliding bearing, this structure abrasion resistance is good, long service life, structural strength is high, and supporting capacity is large.
Description
Technical field
The utility model belongs to a kind of road heading machinery field, particularly relates to a kind of development machine three sleeve.
Background technology
Three sleeves are vitals for development machine, the quality of its quality directly has influence on the use of complete machine, the indivedual built-up welding place serious wear of current outer telescopic tube inner surface, make the flexible interior barrel part chromium plating external surface serious damage coordinated with it, whole pars contractilis in quality guarantee period is caused to exchange goods, produce to user and make troubles, bring heavy losses also to business economic and prestige simultaneously.
Utility model content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of abrasion resistance good, long service life, structural strength is high, three sleeves that supporting capacity is large.
The technical solution adopted in the utility model is such: a kind of development machine three sleeve; comprise inner core, described inner core overcoat has urceolus, and described urceolus overcoat has protection cylinder; it is characterized in that: described outer tube inner wall is provided with multiple wear-resisting copper sheathing, in described wear-resisting copper sheathing, be provided with copper alloy layer and feather key.
Described multiple wear-resisting copper sheathing is four.
Described copper alloy layer thicknesses is 3-5mm.
Described feather key is three.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are: for reducing the frictional force in three slip expansion processes, the thick copper alloy of attached one deck 3-5mm is welded at the outer tube inner wall of three sleeves, and the feather key led by three long keys forms an attached sliding bearing, this structure abrasion resistance is good, long service life, structural strength is high, and supporting capacity is large.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is copper sheathing structural representation of the present utility model.
Mark in figure: 1 is inner core, and 2 is urceolus, 3 is protection cylinder, and 4 is wear-resisting copper sheathing, and 4-1 is copper alloy layer, and 4-2 is feather key.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 and Figure 2, a kind of development machine three sleeve, comprises inner core 1, and inner core 1 overcoat has urceolus 2, and urceolus 2 overcoat has protection cylinder 3, and urceolus 2 inwall is provided with in four wear-resisting copper sheathings, 4, four wear-resisting copper sheathings 4 and is provided with copper alloy layer 4-1 and three feather key 4-2.
During use, for reducing the frictional force in three slip expansion processes, the thick copper alloy layer 4-1 of attached one deck 3-5mm is welded at urceolus 2 inwall of three sleeves, and the feather key 4-2 led by three long keys forms an attached sliding bearing, like this, with inner core 1 with the use of time, abrasion resistance is good, long service life, structural strength is high, and supporting capacity is large.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. development machine three sleeve; comprise inner core (1); described inner core (1) overcoat has urceolus (2); described urceolus (2) overcoat has protection cylinder (3); it is characterized in that: described urceolus (2) inwall is provided with multiple wear-resisting copper sheathing (4), in described wear-resisting copper sheathing (4), be provided with copper alloy layer (4-1) and feather key (4-2).
2. development machine three sleeve according to claim 1, is characterized in that described multiple wear-resisting copper sheathing (4) is four.
3. development machine three sleeve according to claim 1 and 2, is characterized in that described copper alloy layer (4-1) thickness is 3-5mm.
4. development machine three sleeve according to claim 3, is characterized in that described feather key (4-2) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680508.6U CN204327095U (en) | 2014-11-14 | 2014-11-14 | A kind of development machine three sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680508.6U CN204327095U (en) | 2014-11-14 | 2014-11-14 | A kind of development machine three sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327095U true CN204327095U (en) | 2015-05-13 |
Family
ID=53163467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420680508.6U Expired - Fee Related CN204327095U (en) | 2014-11-14 | 2014-11-14 | A kind of development machine three sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401941A (en) * | 2015-12-23 | 2016-03-16 | 林州重机集团股份有限公司 | Telescoping structure of heading machine |
-
2014
- 2014-11-14 CN CN201420680508.6U patent/CN204327095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401941A (en) * | 2015-12-23 | 2016-03-16 | 林州重机集团股份有限公司 | Telescoping structure of heading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |