CN102383450B - Reamer for cutter-suction dredger - Google Patents
Reamer for cutter-suction dredger Download PDFInfo
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- CN102383450B CN102383450B CN 201110403700 CN201110403700A CN102383450B CN 102383450 B CN102383450 B CN 102383450B CN 201110403700 CN201110403700 CN 201110403700 CN 201110403700 A CN201110403700 A CN 201110403700A CN 102383450 B CN102383450 B CN 102383450B
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- reamer tooth
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Abstract
A reamer for a cutter-suction dredger relates to a reamer for a dredger and aims to solve the problems of poor abrasion resistance, high possibility of fracture and short service life of integrally cast reamer tooth. A seven-face wedged head is arranged at the head part of a reamer seat 2; a seven-face wedged groove matched with the seven-face wedged head is formed at the end surface at the tail part of the reamer tooth; the grinding surface at the front end of the reamer tooth is a plane surface and forms an included angle of 14 to 16 degrees with the center line of the reamer seat; the included angle between the bearing surface of the reamer tooth and the center line of the reamer seat is 12 to 14 degrees; the thickness of top end of the tooth tip of the reamer tooth is 20 mm to 30 mm; the included angle between the front end surface of the reamer tooth and the grinding surface at the front end of the reamer tooth is 43 to 45 degrees; the included angle between each of two side surfaces of the reamer tooth and the grinding surface at the front end of the reamer tooth is 50 to 60 degrees; and the installation angle of the reamer tooth and the reamer seat is 61 to 64 degrees. The reamer disclosed by the invention is used on the cutter-suction dredger.
Description
Technical field
The present invention relates to a kind of dredge boat reamer.
Background technology
Cutter suction dredger is the capital equipment that China's dredging industry is used for the geological conditionss such as silt, sandstone and decomposed rock in the cleaning navigation channel at present.Reamer adopts wide tooth, drinks the reamer tooth of tooth and three kinds of forms of pointed tooth according to the difference of geological conditions often in construction as the main easily worn part of cutter suntion dredger, and it is the most commonly used wherein to drink tooth.For a long time, because the wearing no resistance of reamer tooth, frangibility are changed the time frequently in addition, had a strong impact on the operating efficiency of dredge boat.In order to improve the service efficiency of dredge boat, domestic related scientific research institutes, factory once adopted the kinds of processes measure to solve low problem of its life-span, mainly contained following several form:
By above analysis as can be known, manufacturing process is simple, cost is low, the monoblock cast reamer tooth of high life is the first-selection that engineering is used.
Cutter suction dredger is to the dredging industry that enters China, surplus in the of existing 30 year.And the problem in application life of reamer tooth is the key issue of puzzlement dredge boat service efficiency always, no matter is block cast reamer tooth, castingin reamer tooth, or the reamer tooth of surface overlaying all unresolved long-life and problem cheaply.
Summary of the invention
The objective of the invention is provides a kind of cutter suction dredger reamer for solving the wearing no resistance of monoblock cast reamer tooth, frangibility, short problem of life-span.
Reamer of the present invention comprises reamer tooth and cutter seats, the head of described cutter seats is provided with seven sphenocephalies, the tail end face of described reamer tooth is provided with seven wedge-shaped slots that match with seven sphenocephalies, the front end grinding face of reamer tooth is the plane, angle between the center line N-N of front end grinding face and cutter seats is 14 °～16 °, angle between the load-carrying surface of reamer tooth and the center line of cutter seats is 12 °～14 °, the crown tip thickness of reamer tooth is 20mm～30mm, angle between the front end face of reamer tooth and the front end grinding face is 43 °～45 °, two sides of reamer tooth and the angle between the front end grinding face 1-2 are 50 °～60 °, and the setting angle of reamer tooth and cutter seats is 61 °～64 °.
Advantage of the present invention is: because reamer tooth 1 of the present invention adopts seven wedge types to be connected with cutter seats 2, make reamer tooth 1 and cutter seats 2 under the reamer duty, can guarantee tight fit; The present invention improves the crown loading angle of reamer tooth 1, makes the abrasion resistance of reamer tooth 1 be improved; Angle δ between the front end face 1-4 of reamer tooth 1 and the front end grinding face 1-2 at 50 °～60 °, makes digging of reamer tooth 1 cut efficient and the cutter tooth life-span reaches best combination in 43 °～45 °, two side 1-5 of reamer tooth 1 and the angle theta between the front end grinding face 1-2; Improve the setting angle of reamer tooth 1 and cutter seats 2, reduced the degree of wear at position, reamer alligator hole, make the reamer tooth be unlikely to cause integral body to lose efficacy in advance because of the pin-and-hole wearing and tearing; Therefore, the invention solves the wearing no resistance of monoblock cast reamer tooth, frangibility, low problem of life-span.
Description of drawings
Fig. 1 is overall structure front view of the present invention, Fig. 2 is the structural front view of reamer tooth 1, Fig. 3 is the structural front view of cutter seats 2, Fig. 4 is the partial enlarged drawing of seven wedge-shaped slot 1-1 of Fig. 2, Fig. 5 is the right view of Fig. 4, Fig. 6 is the partial enlarged drawing of seven sphenocephaly 2-1 of Fig. 3, Fig. 7 is the right view of Fig. 5, Fig. 8 is the right view of Fig. 1, Fig. 9 is the I partial enlarged drawing of Fig. 8, Figure 10 is the B-B revolved section of Fig. 9, and Figure 11 is the right view of reamer tooth 1, and Figure 12 is the installation site schematic diagram (M is cutter seats 2 installed surface chord length lines among the figure) of reamer tooth 1 of the present invention and cutter seats 2.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1～Fig. 5, present embodiment comprises reamer tooth 1 and cutter seats 2, the head of cutter seats 2 is provided with seven sphenocephaly 2-1, seven sphenocephaly 2-1 are respectively the first inclined-plane 2-1-1, the second inclined-plane 2-1-2, the 3rd inclined-plane 2-1-3, the 4th inclined-plane 2-1-4, the 5th inclined-plane 2-1-5, the 6th inclined-plane 2-1-6 and the 7th inclined-plane 2-1-7, the tail end face of reamer tooth 1 is provided with seven wedge-shaped slot 1-1 that match with seven sphenocephaly 2-1, seven wedge-shaped slot 1-1 are respectively the 8th inclined-plane 1-1-1, the 9th inclined-plane 1-1-2, the tenth inclined-plane 1-1-3, the 11 inclined-plane 1-1-4, the 12 inclined-plane 1-1-5, the 13 inclined-plane 1-1-6 and the 14 inclined-plane 1-1-7, seven sphenocephaly 2-1 closely are connected with seven wedge-shaped slot 1-1, design makes reamer tooth 1 and cutter seats 2 guarantee tight fit under the reamer duty like this, the front end grinding face 1-2 of reamer tooth 1 is the plane, angle α between the center line N-N of front end grinding face 1-2 and cutter seats 2 is 14 °～16 °, angle β between the center line N-N of the load-carrying surface 1-3 of reamer tooth 1 and cutter seats 2 is 12 °～14 °, the crown tip thickness h of reamer tooth 1 is 20mm～30mm, angle δ between the front end face 1-4 of reamer tooth 1 and the front end grinding face 1-2 is 43 °～45 °, two side 1-5 of reamer tooth 1 and the angle theta between the front end grinding face 1-2 are 50 °～60 °, and reamer tooth 1 is 61 °～64 ° with the setting angle γ of cutter seats 2.Reamer tooth 1 is 61 °～64 ° with the setting angle γ of cutter seats 2, can effectively reduce the wearing and tearing at reamer tooth 1 pin-and-hole position, makes reamer tooth 1 be unlikely to cause integral body to lose efficacy in advance because of the pin-and-hole wearing and tearing.
The specific embodiment two: present embodiment is described in conjunction with Fig. 8, the Shamian Island 2-2 thickness of meeting of the cutter seats 2 of present embodiment increases 10mm～15mm, the thickness of corresponding reduction front end grinding face 1-2, the stock removal of the thickness of front end grinding face 1-2 are that the gross weight of reamer tooth 1 and cutter seats 2 reduces by 5%～10%.Existing dredge boat is 8mm with the Shamian Island thickness of meeting of the cutter seats of reamer, cutter seats 2 of the present invention meet Shamian Island 2-2 thickness increase 10mm～15mm after, be improved the application life of cutter seats 2.Simultaneously, reduce the thickness of front end grinding face 1-2, make the gross weight of reamer reduce the corresponding load that reduces motor.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: in conjunction with 1 explanation present embodiment, the reamer tooth 1 of present embodiment and cutter seats 2 adopt the ZG34 cast to form.Existing dredge boat the reamer tooth of reamer and the cast steel material that cutter seats adopts moderate strengths such as ZG35Mn, ZG35CrMnSi or ZG35CrMo.ZG35 is high-strength cast steel, and therefore, reamer tooth 1 of the present invention and cutter seats 2 have high strength, high rigidity and high tenacity, thereby improves the abrasion resistance of reamer tooth 1 and cutter seats 2, makes its not frangibility.Other composition is identical with the specific embodiment one or two with annexation.
The specific embodiment four: present embodiment is described in conjunction with Fig. 8 and Figure 11, present embodiment is different with the specific embodiment two or two is that it also increases reinforcing rib 3 is arranged, load-carrying surface 1-3 and region of high stress 1-6 at reamer tooth 1 are provided with reinforcing rib 3, and reinforcing rib 3 arranges with load-carrying surface 1-3 is vertical, and reinforcing rib 3 is made one with reamer tooth 1.Reinforcing rib 3 can increase the impact resistance of reamer tooth 1, prevents 1 fracture of reamer tooth.Other composition is identical with the specific embodiment three with annexation.
The specific embodiment five: in conjunction with Fig. 8 and Figure 11 present embodiment is described, the length of the reinforcing rib 3 of present embodiment is 194mm～198mm, and the thickness of reinforcing rib 3 is 26mm～30mm.Other composition is identical with the specific embodiment four with annexation.
Claims (4)
1. cutter suction dredger reamer, described reamer comprises reamer tooth (1) and cutter seats (2), it is characterized in that: the head of described cutter seats (2) is provided with seven sphenocephalies (2-1), the tail end face of described reamer tooth (1) is provided with seven wedge-shaped slots (1-1) that match with seven sphenocephalies (2-1), the front end grinding face (1-2) of reamer tooth (1) is the plane, angle (α) between the center line (N-N) of front end grinding face (1-2) and cutter seats (2) is 14 °～16 °, angle (β) between the load-carrying surface (1-3) of reamer tooth (1) and the center line (N-N) of cutter seats (2) is 12 °～14 °, the crown tip thickness (h) of reamer tooth (1) is 20mm～30mm, front end face (1-4) and the angle (δ) between the front end grinding face (1-2) of reamer tooth (1) are 43 °～45 °, two sides (1-5) and the angle (θ) between the front end grinding face (1-2) of reamer tooth (1) are 50 °～60 °, and reamer tooth (1) is 61 °～64 ° with the setting angle (γ) of cutter seats (2).
2. according to the described a kind of cutter suction dredger reamer of claim 1, it is characterized in that: Shamian Island (2-2) thickness of meeting of cutter seats (2) increases 10mm～15mm, the thickness of corresponding reduction front end grinding face (1-2), the stock removal of the thickness of front end grinding face (1-2) are that the gross weight of reamer tooth (1) and cutter seats (2) reduces by 5%～10%.
3. according to claim 1 or 2 described a kind of cutter suction dredger reamers, it is characterized in that: described reamer also comprises reinforcing rib (3), load-carrying surface (1-3) and the region of high stress (1-6) in reamer tooth (1) are provided with reinforcing rib (3), and reinforcing rib (3) and the vertical setting of load-carrying surface (1-3), reinforcing rib (3) is made one with reamer tooth (1).
4. according to the described a kind of cutter suction dredger reamer of claim 3, it is characterized in that: the length of reinforcing rib (3) is 194mm～198mm, and the thickness of reinforcing rib (3) is 26mm～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110403700 CN102383450B (en) | 2011-12-07 | 2011-12-07 | Reamer for cutter-suction dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110403700 CN102383450B (en) | 2011-12-07 | 2011-12-07 | Reamer for cutter-suction dredger |
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| Publication Number | Publication Date |
|---|---|
| CN102383450A CN102383450A (en) | 2012-03-21 |
| CN102383450B true CN102383450B (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110403700 Active CN102383450B (en) | 2011-12-07 | 2011-12-07 | Reamer for cutter-suction dredger |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188057A (en) * | 2003-12-24 | 2005-07-14 | Toyo Constr Co Ltd | Dredging device and dredging method |
| CN201020569Y (en) * | 2007-04-17 | 2008-02-13 | 黄新萍 | Hole enlarging broach possessing circle trimming function |
| CN201924395U (en) * | 2011-01-17 | 2011-08-10 | 河海大学常州校区 | Convex hull-shaped surface flat reamer cutter tooth |
| CN202401499U (en) * | 2011-12-07 | 2012-08-29 | 中国船舶重工集团公司第七�三研究所 | Reamer for cutter suction dredger |
-
2011
- 2011-12-07 CN CN 201110403700 patent/CN102383450B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188057A (en) * | 2003-12-24 | 2005-07-14 | Toyo Constr Co Ltd | Dredging device and dredging method |
| CN201020569Y (en) * | 2007-04-17 | 2008-02-13 | 黄新萍 | Hole enlarging broach possessing circle trimming function |
| CN201924395U (en) * | 2011-01-17 | 2011-08-10 | 河海大学常州校区 | Convex hull-shaped surface flat reamer cutter tooth |
| CN202401499U (en) * | 2011-12-07 | 2012-08-29 | 中国船舶重工集团公司第七�三研究所 | Reamer for cutter suction dredger |
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| Publication number | Publication date |
|---|---|
| CN102383450A (en) | 2012-03-21 |
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Effective date of registration: 20160114 Address after: 150090 No. 35, Honghu Road, Yingbin Road, Harbin hi tech Development Zone, Heilongjiang, China Patentee after: Harbin broad power technology development Co., Ltd. Address before: 150036 Hongqi Street, Xiangfang District, Heilongjiang, China, No. 108, No. Patentee before: No.703 Inst. China Ship Heavy Industry Group Co. |