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A frequency-adjustable ship resonance icebreaking device

An adjustable, marine technology, applied in icebreakers and other directions, can solve problems such as low efficiency and large impact on equipment stability

Active Publication Date: 2020-10-27
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of resonance ice breaking is extrusion, which has a great impact on the stability of the equipment and is low in efficiency

Method used

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  • A frequency-adjustable ship resonance icebreaking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] like figure 1 , assuming that a 3000-ton icebreaker breaks ice, ice thickness t=2m, ice density ρ=0.9×10 3 kg / m 3 , the height of the base 16 is 0.2m; the rated power of the motor 3 is 70kw; the reducer 5 is a two-stage reducer with a transmission ratio of 10; the length of the crank 14 is 0.4m; the length of the connecting rod 13 is 0.8m; the length of the rotary rod 4 is 3.5m; bearing seat 2 model is H2010; slider size is 0.3×0.3m 2 The length of the slideway 6 is 1.2m; the length of the chute 8 is 2m; the length of the exciting rod 9 is 4.5m; 3 , the radius of the lower hemispherical structure is 0.35m, the two are connected by a toggle plate, the reciprocating working distance of the hammer head 11 is 0.3m; the upper surface of the lifting table 10 is covered with a rubber material with a thickness of 20mm; the material of the transmission component and the hammer head 11 is steel; The thickness of the bulkhead fixed by the bearing seat 2 and the chute 8 is 12mm,...

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Abstract

The invention belongs to the field of shipping, and discloses a frequency adjustable type shipping resonance icebreaking device. The frequency adjustable type shipping resonance icebreaking device comprises a ship body, a power system, a transmission system and a work system; openings are formed in the bottom the ship body; the power system comprises a controller, a motor, a reducer and a base; the base is fixed to the bottom of the ship body, the controller is fixed to the ship body, the motor and the reducer are fixed to the base, the controller is connected with the motor, the motor is connected with the reducer through a conveyor belt, and the reducer is provided with an output shaft; the work system comprises a shock excitation rod, a sliding groove and a hammerhead; the transmissionsystem comprises a bearing seat, a pivoted lever, a coupling, a crank, a connecting rod, a sliding block and a lifting platform. Frequency adjustment is realized by adopting a simple and reliable design, and the adaptability of icebreaker is enhanced; and when the working frequency of the hammerhead and the inherent frequency of ice layer are the same, ice layer resonance can be caused, and the icebreaking efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of ships, in particular to a frequency-adjustable resonance ice-breaking device for ships. Background technique [0002] When the temperature is low in winter, rivers and some sea areas will freeze severely, hindering normal shipping and causing great obstacles to sea transportation and sea trade in winter. From February to March 1969, the Bohai Sea experienced the largest ice cover. The maximum glacial period was delayed by one month compared with normal years, and the glacial period in Bohai Bay reached 4 months. Almost all of them were covered by sea ice, and the ice state remained for 40-50 days. Small ice mounds piled up to 5 meters high, 123 ships of various types were trapped, and 7 ships were flooded; Haijing No. 2 platform was flooded. The ice was pushed down and the damage was serious. [0003] Icebreakers are service ships used to break the ice on the water surface, open up waterways, ensure ships enter a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B35/12
CPCB63B35/12
Inventor 庞福振单衍贺陈海龙缪旭弘韩端峰郭君李海超李玉慧彭德伟霍瑞东
Owner HARBIN ENG UNIV