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Casting mold and method for planet carrier for jack-up offshore platform lifting gear box

An offshore platform and self-elevating technology, applied in the direction of casting molding equipment, casting molds, casting mold components, etc., can solve the problems of complex manufacturing process, easy damage, unfavorable welding, etc., to improve the ability of damage resistance, repair The shrinkage channel is smooth and the effect of eliminating crack defects

Active Publication Date: 2018-06-15
BAODING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings: the manufacturing process is complicated, the processing cycle is long, the production cost is high, and the utilization rate of materials is low. Areas are prone to damage during use

Method used

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  • Casting mold and method for planet carrier for jack-up offshore platform lifting gear box
  • Casting mold and method for planet carrier for jack-up offshore platform lifting gear box
  • Casting mold and method for planet carrier for jack-up offshore platform lifting gear box

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Embodiment 1

[0026] Embodiment 1: with reference to attached Figure 1-3. A casting die for a planet carrier with a large speed ratio and super high torque self-elevating offshore platform lifting gearbox. There are four wedge-shaped subsidies 5 at the positions of the four pins in the area of ​​the upper flange 11 and together with the upper flange 11. It constitutes a movable block, which is inlaid in the upper middle of the core head 9 round table, four pins 12, the main feeding channel subsidy 10 and the connection area with the upper flange 11 and the lower flange 13 and covers the center core head 8, the core The head 9 is integrally formed with the upper and lower flanges and the central core head 8. The central core head 8 is a tapered cylinder with a small upper part and a larger lower part. Above the upper flange 11 is an insulation riser 4 . There is an ingate 3 on the side of the core head 9, the ingate 3 communicates with the sprue 2, and the sprue cup 1 is located at the u...

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Abstract

The invention relates to a casting forming mould of a planet carrier for a lifting gearbox of a self-elevating offshore platform, which can be used for solving the problems of poor working stability, short service life and low working efficiency caused by welding after split welding of a planet carrier for a lifting gearbox of a self-elevating offshore platform. Four wedge-shaped patches are arranged at positions in which four pins of an upper flange region are and form a movable block together with an upper flange, the movable block is embedded in the upper part of the middle of a circular truncated cone of a core head, the four pins, a main feeding channel patch and a connecting region of the upper flange and a lower flange cover a center core head, and the core head, the upper flange, the lower flange and the center core head are integrally combined to form the casting forming mould. The casting forming mould has the advantages that because an integral casting structure is adopted, the problem that the damage is easily caused in a working process due to welding after casting forming is solved, the working stability is improved, the service life of a product is prolonged, the production cost is also lowered, the working efficiency is improved, the reliability of the product is enhanced, and a wide market prospect is achieved.

Description

technical field [0001] The invention relates to a self-elevating marine platform lifting gear box which can solve the problem of poor working stability, short service life and low working efficiency caused by the welding of the planetary frame for the jacking-up marine platform lifting gearbox. The invention discloses a casting mold and a molding method using a planet carrier, belonging to the field of steel casting mold manufacturing. Background technique [0002] In foreign countries, the flanges at the upper and lower ends and the three parts of the column pin are forged into blanks, welded after machining, and finally finished. The specific manufacturing process is: Scrap raw materials  _casting_forging molding_part blanks_rough machining_welding_finishing_final products. Its shortcomings: the manufacturing process is complicated, the processing cycle is long, the production cost is high, and the utilization rate of materials is low. Areas are prone to damage during us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/22B22C9/08C21D9/00
CPCB22C9/08B22C9/22
Inventor 陈江忠娄彪
Owner BAODING TECH CO LTD
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