CN2461967Y

CN2461967Y - Novel environmental protective dredging rimer

Info

Publication number: CN2461967Y
Application number: CN 00264795
Authority: CN
Inventors: 杨建华; 刘俸麟; 王惠来
Original assignee: TIANJIN WATERWAY SURVEYING DESIGN RESEARCH ACADEMY
Current assignee: TIANJIN WATERWAY SURVEYING DESIGN RESEARCH ACADEMY
Priority date: 2000-12-15
Filing date: 2000-12-15
Publication date: 2001-11-28
Anticipated expiration: 2010-12-15

Abstract

The utility model belongs to the class of dredging engineering devices, and the scheme is especially disclosed to overcome technical problems existing in an environmental protection type reamer in the existing art. The reamer is composed of cutter teeth, a reamer small circle, a shaft hub, and a reamer great circle, and each part is formed by welding between the parts; each part of the cutting edge is distributed on a same conical surface, and the cutting edge of each cutter tooth is either a space spiral curve; the reamer is driven by a hydraulic motor, and can swing to form a plane which is a working face under the effect of a left and right swinging head steel cable. The utility model has the advantages of small size, low manufacture cost, and high working quality.

Description

The novel environment friendly dredging reamer

The utility model belongs to the navigation channel mercapto and dredges the engineering equipment class, and it is specifically related to a kind of structure of novel dredging instrument environment-friendly type dredging reamer.

The dredging in harbour and navigation channel is to adopt the dredging instrument to cut out the depth of water of silt particle assurance under water, to keep boat unimpeded.Dredge boat is adopted in the operation of dredging, and at present, the kind of dredge boat is a lot, and mainly the cutter suction dredger that is made of reamer and slush pump is widely used in the dredging and the hydraulic reclamation engineering in harbour or navigation channel.Its operating principle is to rely on reamer self rotation that is located at cutter suction dredger reamer crane span structure front portion and swing to carry out work, the earth of designated depth stirs pine under water in the zone that reamer is selected, the earth that is stirred pine is drawn onto on the dredge boat by the dredging tube road that is located at the reamer rear portion, and by being located at slush pump and the mud pipe on the dredge boat, it is drained in the dumping area that dredge boat is delivered to appointment with mud.Simple in structure, the mobile characteristics that also can adapt to multiple soil property flexibly that cutter suction dredger has.Proposing to administer the water pollution again on the basis that tradition dredging and hydraulic reclamation are operated in recent years is the environmental dredging of purpose.The appointed place is dug out and transported to the operation that i.e. utilization is dredged with the polluted bed mud in contaminated waters.The operation of environment-friendly type dredging requires thoroughly to remove contaminated bed mud, in the operation that reduces as much as possible simultaneously to dredge backbreak and phenomenon is dug in leakage, construction precision is had strict demand.The principal element of influence dredging quality is used reamer, and the blade of the common reamer of dredging is an irregular space curve, and the section of dredging of formation is a curve shape, forms easily and leaks the phenomenon of digging.The environment-friendly type dredge boat of the IHC castor series of Holland's design has in recent years adopted the linear pattern blade, basically can realize being become a plane by the face of dredging, improved construction precision, but it also exist manufacturing cost height, reamer cutter hub size big, inhale the mud weak effect, to the problem of the bad adaptability of the soil of being dredged.

The purpose of this utility model is to be to overcome the special novel environment friendly dredging reamer that proposes of technical problem that the environment-friendly type reamer exists in the prior art, and it has the mud of the suction efficient high precision of dredging and meets the characteristics that the environmental protection mercapto is dredged requirement.

By as above design, the novel environment friendly dredging reamer that this programme provided comprises cutter tooth, the propeller boss of space curve, the cutting edge that it is characterized in that each gear teeth all is distributed on the taper seat of the frustum of a cone, its reamer is made up of reamer great circle, reamer cutter tooth, reamer ringlet and propeller boss, and each several part is to couple together with the method for welding.

In this programme, its cutter tooth quantity is 5～8, and its helical angle is 45 °～75 °, and cone angle is 40 °～55 °.The front of its cutting edge part and the angle δ of basal plane are 6 °～42 °, relief angle α is 30 °～65 °, cutting edge angle β is 10 °～25 ° and adopts this programme can embody following superiority: 1. each blade of this novel environment friendly dredging reamer all is distributed on the same taper seat, mix up working depth in operation, can make the work plane of dredging is a plane, improved construction precision, reduced as much as possible to backbreak and leak the phenomenon of digging; 2. its cutting edge is a spatially spiral curve, guaranteeing have under the condition of enough cutting edge length, reduces cutter hub length, and the raising of suction pipe being inhaled mud efficient creates good conditions; 3. this cutter hub mode of adopting casting to add welding forms, and has reduced manufacturing cost, and has improved the compliance to quilt shoveling matter.

Fig. 1 is the duty and the structural representation of common cutter suction dredger in the prior art.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the structural representation of the medium-sized reamer of dredging.

Fig. 4 is the structural representation of Dutch IHC environmental protection reamer.

Fig. 5 is the structural representation of this programme novel environment friendly dredging reamer.

Fig. 6 is the vertical view of Fig. 5.

Fig. 7 is the operating angle schematic diagram of the cutting edge of this programme reamer.

Fig. 8 is the working state schematic representation of this programme novel environment friendly dredging reamer.

The embodiment of existing accompanying drawings this programme.This novel environment friendly dredging reamer is the improvement to environmental protection cutter in the prior art, it is made with the mode of Combination Welding, formed by reamer ringlet and propeller boss 1, reamer cutter tooth 2, reamer great circle 3, the cutting edge of each one of cutter all is distributed on the taper seat of the same frustum of a cone, its cutter tooth quantity is 5～8, its helical angle is between 45 °～75 °, the cone angle of cutter hub is between 40 °～55 °, the angle δ of the front of cutter and basal plane is between 6 °～42 °, cutting edge angle β is between 10 °～25 °, and its relief angle α is 30 °～65 °.Be connected with mangler shaft 4 with trapezoidal thread at the reamer propeller boss, mangler shaft is installed on the reamer crane span structure 6 through the support of bearing, by hydraulic motor 5 transmissions, the working depth of reamer crane span structure control reamer under the effect that promotes wirerope 7, under 8 effects of left and right joint wirerope, swing, reamer stirs the dredging tube road 9 that the earth of pine is installed in behind the reamer and siphons away, and drains into the dumping area at the following mud of the effect of slush pump 10 through mud pipe 12.Because each cutting edge of this reamer all is distributed on the taper seat, the formed work plane of its cutting edge is a fan-shaped plan after working depth is adjusted, and continuous operation then forms a complete plane.It can improve work quality and efficient, reaches the requirement of environmental dredging, also can satisfy and avoid backbreaking or leaking the requirement of digging.This reamer adopts the method manufacturing of split casting welding forming, can accomplish to improve the quality and reduce cost.This programme the experiment proved that: this reamer has that size is little, low cost of manufacture, the measured characteristics of as received basis, is suitable for promoting the use of.

Claims

1. a novel environment friendly mercapto is dredged reamer, it comprises cutter tooth, the propeller boss of space curve, the cutting edge that it is characterized in that each gear teeth all is distributed on the taper seat of the frustum of a cone, its reamer is made up of reamer great circle (3), reamer cutter tooth (2), reamer ringlet and propeller boss (1), and each several part is to couple together with the method for welding.

2. according to the described dredging reamer of claim 1, the cutter tooth quantity that it is characterized in that it is 5～8, and its helical angle is 45 °～75 °, and cone angle is 40 °～55 °.

3. according to the described dredging reamer of claim 1, it is characterized in that the front of its cutting edge part and the angle δ of basal plane are 6 °～42 °, relief angle α is 30 °～65 °, and cutting edge angle β is 10 °～25 °