CN202706097U - Wear-resisting block of rake tooth - Google Patents
Wear-resisting block of rake tooth Download PDFInfo
- Publication number
- CN202706097U CN202706097U CN 201220377462 CN201220377462U CN202706097U CN 202706097 U CN202706097 U CN 202706097U CN 201220377462 CN201220377462 CN 201220377462 CN 201220377462 U CN201220377462 U CN 201220377462U CN 202706097 U CN202706097 U CN 202706097U
- Authority
- CN
- China
- Prior art keywords
- wear
- rake teeth
- resistant block
- resisting block
- resistant
- 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 - Lifetime
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Abstract
The utility model provides a wear-resisting block of a rake tooth, relating to a fitting of a trailing suction hopper dredger. The utility model provides the wear-resisting block mounted on a dredging rake tooth. The technical scheme of the utility model is that the wear-resisting block is formed by casting wear-resisting ceramic; the wear-resisting block is characterized in that an upper excavating surface of the wear-resisting block is in a reversed V shape; a reversed-V-shaped angle is in a range of 120-180 degrees; a lower excavating surface is V-shaped and a V-shaped angle is in a range of 120-180 degrees; a rake tooth clamping groove is arranged at the inner side of the wear-resisting block and limiting holes are arranged at the left and right sides of the wear-resisting block; and two positioning holes are arranged at the back side of the wear-resisting block.
Description
Technical field
The utility model relates to raking, sucking mud digging ship dredging facility accessory, the especially wear-resistant block of rake teeth adapted.
Background technology
Rake teeth is one of main consumable accessory of raking, sucking mud digging ship dredging facility, during its work along with dredger moves.Sand is being born on the rake teeth surface, after the impact of the mud that gravel and seawater form, form pit and groove on rake teeth surface and with the oxide film of pattern cracking, the miniature wound of these metal surfaces, in Dredging Process, constantly enlarge, finally degrade rake teeth, lost efficacy so that rake teeth excavates surface abrasion.In Dredging Process, crown mainly bears abrasive wear, and the flank of tooth bears slurry erosion, therefore in the rake teeth crown both sides rate of wear greater than the crown middle part, tooth surface abrasion speed is greater than the back of tooth.On the other hand, the hardness of rake teeth material, toughness, purity, impurity content and the material electrode potential in liquid medium has larger impact to rake teeth wear-resisting.The at present general employing of rake teeth is the alloy steel of essential element suddenly, although its material is more wear-resisting than general similar steel, after one to two week of dredging, its rake teeth excavation surface is wears basically in reality, the excavation performance of rake teeth constantly reduces in the process of wearing and tearing, until be zero.Two drag heads of the at present general outfit of trailing suction hopper dredger, each drag head is installed the rake teeth more than 6 at least, and for the ultra-large type trailing suction hopper dredger, its single drag head is installed rake teeth quantity and is reached more than 24, so the consumption of rake teeth in ship dredging construction is very surprising.
The utility model content
The purpose of this utility model provides a kind of wear-resistant block that is applicable to delay in the ship dredging construction wearing and tearing of rake teeth crown.
The technical solution of the utility model adopts the wear-resistant ceramic casting to be fired into, the excavation upper surface that it is characterized in that wear-resistant block is reverse V-shaped, reverse V-shaped angle is between 120 ° ~ 180 °, the excavation soffit is V-shaped, the V-type angle is between 120 ° ~ 180 °, in the wear-resistant block inboard rake teeth draw-in groove is arranged, be provided with spacing hole in the wear-resistant block left and right sides, be provided with two locating holes at the wear-resistant block back side.
The utility model has reached minimizing rake teeth tooth surface abrasion by at traditional rake teeth leading portion abrasion-proof ceramic block being installed, and prolongs the purpose that the trailing suction hopper dredger drag head excavates performance.
Description of drawings
Fig. 1 is the schematic diagram that the rake teeth wear-resistant block is installed at rake teeth.
The specific embodiment
The utility model (referring to accompanying drawing) adopts the wear-resistant ceramic casting to be fired into, the excavation upper surface 1 of wear-resistant block is reverse V-shaped, reverse V-shaped angle is between 120 ° ~ 180 °, excavate soffit 2 V-shaped, the V-type angle is between 120 ° ~ 180 °, in the wear-resistant block inboard rake teeth draw-in groove 3 is arranged, be provided with spacing hole 4 in the wear-resistant block left and right sides, be provided with 2 locating holes 7 at the wear-resistant block back side.When the utility model is installed at rake teeth, the rake teeth excavation surface bores 2 through holes 8, and tapping, rake teeth draw-in groove 3 interior brushing wear-resistant ceramic glue with wear-resistant block, rake teeth 5 excavation surfaces are inserted in the rake teeth draw-in groove of wear-resistant block, insert wear-resistant block locating hole 7 with set bolt 6, and fastening at rake teeth through hole 8, implement spot welding at the spacing hole 4 of rake teeth both sides subsequently, leave standstill behind the rake teeth installation wear-resistant block and treat that wear-resistant ceramic glue parches.
Claims (3)
1. rake teeth wear-resistant block, adopt the wear-resistant ceramic casting to be fired into, the excavation upper surface that it is characterized in that wear-resistant block is reverse V-shaped, reverse V-shaped angle is between 120 °～180 °, the excavation soffit is V-shaped, and the V-type angle has the rake teeth draw-in groove in the wear-resistant block inboard between 120 °～180 °, be provided with spacing hole in the wear-resistant block left and right sides, be provided with two locating holes at the wear-resistant block back side.
2. a kind of rake teeth wear-resistant block according to claim 1 is characterized in that brushing wear-resistant ceramic glue in the rake teeth draw-in groove of wear-resistant block.
3. a kind of rake teeth wear-resistant block according to claim 1 is characterized in that inserting the wear-resistant block locating hole with set bolt, and fastening at the rake teeth through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377462 CN202706097U (en) | 2012-08-01 | 2012-08-01 | Wear-resisting block of rake tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377462 CN202706097U (en) | 2012-08-01 | 2012-08-01 | Wear-resisting block of rake tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202706097U true CN202706097U (en) | 2013-01-30 |
Family
ID=47586415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377462 Expired - Lifetime CN202706097U (en) | 2012-08-01 | 2012-08-01 | Wear-resisting block of rake tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202706097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556670A (en) * | 2013-08-12 | 2014-02-05 | 宁波天绗海威进出口有限公司 | Bucket teeth of loader |
| CN109209341A (en) * | 2018-10-17 | 2019-01-15 | 贵州航天凯山石油仪器有限公司 | A kind of improved method and regulating arm of regulating arm |
-
2012
- 2012-08-01 CN CN 201220377462 patent/CN202706097U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556670A (en) * | 2013-08-12 | 2014-02-05 | 宁波天绗海威进出口有限公司 | Bucket teeth of loader |
| CN109209341A (en) * | 2018-10-17 | 2019-01-15 | 贵州航天凯山石油仪器有限公司 | A kind of improved method and regulating arm of regulating arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |