CN2830519Y - Flushing rake tooth - Google Patents
Flushing rake tooth Download PDFInfo
- Publication number
- CN2830519Y CN2830519Y CN 200520045370 CN200520045370U CN2830519Y CN 2830519 Y CN2830519 Y CN 2830519Y CN 200520045370 CN200520045370 CN 200520045370 CN 200520045370 U CN200520045370 U CN 200520045370U CN 2830519 Y CN2830519 Y CN 2830519Y
- Authority
- CN
- China
- Prior art keywords
- rake teeth
- rake
- toothholder
- tooth
- utility
- 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 relates to a water flushing rake tooth which belongs to rake suction dredge dredging equipment, particularly a tooth matched with a rake head. The utility model needs to solve the problem of reducing the cutting resistance of rake teeth when a rake head dredges dense fine particle silt. The utility model has the technical scheme that the rake tooth is combined with a tooth seat and is inlaid on a rake tooth seat of a rake head. The utility model is characterized in that water flushing holes which are communicated are arranged in the rake tooth and a tooth seat body, wherein the water flushing holes of the tooth seat are connected with a water tank at the front end of a water flushing pipe. The utility model is suitable for rake suction dredge dredging equipment.
Description
Technical field:
The utility model relates to the raking, sucking mud digging ship dredging facility, especially the rake teeth of drag head adapted.
Background technology
The normally used rake teeth of the drag head of trailing suction hopper dredger has cutter type tooth, sharp type tooth, plough type tooth, and the rake teeth interlocking is installed on the rake teeth seat of drag head.Existing rake teeth can occur that excavating resistance is big, embedded depth is shallow, the weak effect that breaks ground, excavate difficulty, problem that efficiency of construction is low when excavating more closely knit fine grained soil property.Its reason is that the permeability of closely knit fine grained soil property is relatively poor, and has certain coherency, when rake teeth cuts saturated closely knit fine sediment, the grains of sand are subjected to shearing the back volume expansion, because permeability is lower, water around the grains of sand is toward the constricted flow of grains of sand hole, and negative pressure appears in grains of sand hole, needs to increase the cutting force of rake teeth.And the increase of cutting force need come balance by the horizontal propulsive force of dredge boat and the vertical gravity of drag head.If drag head weight is not enough, rake teeth just can't injection soil in, thickness of cutting will descend, thereby has influenced the digging efficiency of drag head.
The utility model content
The utility model need solve drag head when dredging closely knit fine sediment, reduces the problem of rake teeth cutting resistance.
The technical solution of the utility model is by rake teeth and toothholder combination, and the rake teeth interlocking is installed on the rake teeth seat of drag head, it is characterized in that having in rake teeth and the toothholder body bath hole of perforation, and the bath hole of toothholder connects the delivery port of jet water spout front end water tank.
The utility model is because can be by the expansion area bath of the bath hole on the rake teeth to silt, avoid the silt hole negative pressure to occur, reach the effect that reduces the rake teeth cutting resistance, high-pressure flush helps loose silt, improve the thickness of cutting of rake teeth, thereby reach the purpose that improves drag head output.The utility model the results showed and improves mining ability more than 50%.
Description of drawings
Fig. 1 be the toothholder structure partly cut open schematic diagram.
Fig. 2 is the schematic diagram of rake teeth structure.
Fig. 3 is that the vertical profile of Fig. 2 is looked schematic diagram.
The specific embodiment
The utility model adopts the rake teeth (Fig. 2) and toothholder (Fig. 1) combination of casting, rake teeth (Fig. 2) interlocking is installed on the rake teeth seat of drag head, toothholder (Fig. 1) is the side's of one-tenth conoid type substantially, the adjacent side of side's platform awl has arc transition, the bath hole 1 of tiltedly passing through the toothholder two ends is together established at this cone center, the tank weld of toothholder root and high pressure water pipe front end makes the bath hole of toothholder connect the delivery port of water tank; One side of toothholder (Fig. 1) root is provided with a horizontal cotter way 2, so that employing shank bolt tight rake teeth in rake teeth (Fig. 2) back is being installed;
Rake teeth (Fig. 2) can adopt cutter type tooth or sharp type tooth or plough type tooth, the rake teeth root is the side's of one-tenth conoid type substantially, a taper cave 3 that cooperates with the anterior cone interlocking of toothholder is established at rake teeth platform cone center, rake teeth platform cone root one side connects a crozier 4, embeds the steady pin of the tight rake teeth of bolt between the horizontal cotter way 2 of this crozier 4 and toothholder one side; Establish the bath hole 5 that connects the flank of tooth and tooth root in the rake teeth body, the diameter of rake teeth bath hole 5 delivery ports can be not fixed according to the flow and the pressure of the high-pressure flush pump that dredge boat was equipped with, and generally can adopt the delivery port about diameter 15mm.
Claims (2)
1, a kind of bath rake teeth, by rake teeth and toothholder combination, the rake teeth interlocking is installed on the rake teeth seat of drag head, it is characterized in that having in rake teeth and the toothholder body bath hole of perforation, and the bath hole of toothholder is connected with the water outlet of water tank of high pressure water pipe front end.
2, a kind of bath rake teeth according to claim 1, it is characterized in that the toothholder side of one-tenth conoid type, one side of toothholder root has a horizontal cotter way, the rake teeth root side of one-tenth conoid type, there is a taper cave of rabbeting with the anterior cone of toothholder at rake teeth platform cone center, rake teeth platform cone root one side connects a crozier, embeds steady pin between the horizontal cotter way of this crozier and toothholder one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045370 CN2830519Y (en) | 2005-09-28 | 2005-09-28 | Flushing rake tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045370 CN2830519Y (en) | 2005-09-28 | 2005-09-28 | Flushing rake tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830519Y true CN2830519Y (en) | 2006-10-25 |
Family
ID=37135444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520045370 Expired - Lifetime CN2830519Y (en) | 2005-09-28 | 2005-09-28 | Flushing rake tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830519Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242547A (en) * | 2010-05-10 | 2011-11-16 | 中交上海航道勘察设计研究院有限公司 | Spine curved rake tooth |
| CN106555414A (en) * | 2016-11-22 | 2017-04-05 | 中交疏浚技术装备国家工程研究中心有限公司 | A kind of device for dredging the closely knit Extra-fine sand of saturation and silt |
| CN108203999A (en) * | 2018-02-14 | 2018-06-26 | 中交天航港湾建设工程有限公司 | A kind of dredging drag head single side bath vomerine tooth |
| CN108316376A (en) * | 2018-02-14 | 2018-07-24 | 中交天航港湾建设工程有限公司 | A kind of dredging drag head triangular edge tooth |
-
2005
- 2005-09-28 CN CN 200520045370 patent/CN2830519Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242547A (en) * | 2010-05-10 | 2011-11-16 | 中交上海航道勘察设计研究院有限公司 | Spine curved rake tooth |
| CN102242547B (en) * | 2010-05-10 | 2013-08-07 | 中交上海航道勘察设计研究院有限公司 | Spine curved rake tooth |
| CN106555414A (en) * | 2016-11-22 | 2017-04-05 | 中交疏浚技术装备国家工程研究中心有限公司 | A kind of device for dredging the closely knit Extra-fine sand of saturation and silt |
| CN108203999A (en) * | 2018-02-14 | 2018-06-26 | 中交天航港湾建设工程有限公司 | A kind of dredging drag head single side bath vomerine tooth |
| CN108316376A (en) * | 2018-02-14 | 2018-07-24 | 中交天航港湾建设工程有限公司 | A kind of dredging drag head triangular edge tooth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHEC DREDGING CO., LTD. Free format text: FORMER NAME: ZHONGGANG SHUJUN CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201208 No. 140 East Tong Road, Shanghai, Pudong New Area Patentee after: CHEC Dredging Co., Ltd. Address before: 201208 No. 140 East Tong Road, Shanghai, Pudong New Area Patentee before: Zhonggang Shujun Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061025 |
|
| EXPY | Termination of patent right or utility model |