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Electrical drive grab dredger

An electric drive, dredger technology, applied in mechanically driven excavators/dredgers, motor vehicles, special-purpose ships, etc., can solve the problems of complex mechanism layout and key technology monopoly, and achieve large overload coefficient, operation control and other problems. The effect of good performance and high control precision

Active Publication Date: 2014-04-09
LIAONING SENMIAO OCEAN ENG EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this form, the organization layout is complicated, and the key technology is monopolized by foreign countries

Method used

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  • Electrical drive grab dredger

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Embodiment Construction

[0028] Below in conjunction with embodiment the present invention is described in further detail:

[0029] Such as figure 1 , 2 As shown, the 18m of this embodiment 3 The electric drive grab dredger consists of two parts: the hull and the grab dredger, and the dredge is installed on the deck of the hull.

[0030] In the hull of the present invention, diesel tanks (1), ballast water tanks (2), and cooling water tanks (3) are arranged on both sides, forepeak tanks (4) and stern peak tanks (5) are arranged at both ends, and the middle is arranged Auxiliary engine room (6) and empty cabin (7), arrange diesel generator set (8) in the auxiliary engine room (6), be responsible for supplying power to the grab dredger on deck.

[0031] The dredger of the present invention is made up of boom (9), herringbone frame (10), turntable (11), slewing bearing (12) and base (13) five parts, and slewing bearing (12) will dredge The rotary part of the machine is supported on the fixed base (13...

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PUM

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Abstract

The invention relates to the irrigation work construction industry, in particular to an electric drive grab dredger which comprises a ship body and a grapple dredger. The volume of a bucket of the grapple dredger is 18m3. The grapple dredger is composed of an arm frame, a propeller strut, a rotating table, a rotary support and a foundation support and is provided with a hoisting mechanism, an opening-closing mechanism, an amplitude variation mechanism and a rotary mechanism. A driving device is composed of a variable frequency motor, a reducer and a hydraulic brake. All the parts are driven electrically. A generator unit in an auxiliary cabin on the ship body is used for supplying power. The hoisting mechanism and the opening-closing mechanism are realized through the motion of a control mechanism motor and the motion of a brake hydraulic cylinder. The hydraulic cylinder is controlled by a solenoid valve to move. An alternating-current, frequency-changing and speed-adjusting control system is adopted to realize stepless speed adjustments, stable start and strong overload capacity. A force measuring device for the dredger is researched and developed independently. The electric drive grab dredger is high in control precision, flexible to operate, simple to maintain, safe, reliable, and capable of being accepted by domestic construction enterprises, and fills up the blank of domestic large full-electric, frequency-changing and speed-adjusting grab dredger with volume larger than 10m3.

Description

technical field [0001] The invention relates to the hydraulic construction industry, in particular to an electric drive grab dredger. Background technique [0002] At present, the grab dredgers active in the hydraulic construction industry mainly have the following styles: [0003] 1. Second-hand grab dredger. Now this batch of equipment is aging and has a high failure rate. [0004] 2. Grab dredger with mechanical transmission. This part of equipment generally uses marine diesel engines to directly drive various working mechanisms through the power shaft. This mode has poor resistance to overload and impact, so it is generally suitable for medium and small power transmission. [0005] 3. Newly built large grab dredger 10m 3 Above, generally adopt the form of hydraulic transmission. In this form, the organizational layout is complicated, and the key technology is monopolized by foreign countries. [0006] With the development of AC frequency conversion technology, esp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/47E02F3/58B63B35/00
Inventor 谭微张兴刚张瑜黄景楠
Owner LIAONING SENMIAO OCEAN ENG EQUIP CO LTD
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