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A fuselage upright crankshaft assembly method and device

An assembly method and technology of an assembly device, which are applied to crankshafts, shafts, shafts and bearings, etc., can solve the problems of inability to guarantee assembly quality, body deformation, and high cost, and achieve improved process stability, long solution cycles, and good economy. and quality assurance

Active Publication Date: 2019-10-25
SHANNXI DIESEL ENGINE HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the technical problems of the existing diesel engine production process, the process of assembling the crankshaft to the fuselage is easy to cause deformation of the fuselage, the assembly quality cannot be guaranteed, the cycle is long, and the cost is high, and a machine that can ensure the assembly quality and low cost is provided. Body upright crankshaft assembly method and device

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  • A fuselage upright crankshaft assembly method and device
  • A fuselage upright crankshaft assembly method and device
  • A fuselage upright crankshaft assembly method and device

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Embodiment Construction

[0037] Such as Figure 5 , 6 Shown in and 7, the positioning seat one 12 is placed on the support one 11, and the jack 18 is placed under the positioning seat one 12. The middle part of the positioning seat 12 is an arc surface 13, which is a inferior arc (less than 180°), and is used to place the crankshaft. There are two first positioning holes 14 and second positioning holes 15 with the same structure on both sides of the first positioning seat 12 . The first fine-tuning screw 16 and the second fine-tuning screw 17 are installed respectively on the top two ends of support one 11, and the first fine-tuning screw 16 leans against on the side wall of positioning seat-12, and the second fine-tuning screw 17 leans against the side wall of positioning seat-1 12 on the other side wall. The first fine-tuning screw 16 and the second fine-tuning screw 17 are used to adjust the position of the positioning seat one 12 on the bracket one 11 . Positioning seat one 12, support one 11,...

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Abstract

The invention relates to a machine body positive positioned crankshaft assembling method and device, and solves the technical problems that a machine body is easy to deform, the assembling quality cannot be ensured, the period is long and the cost is high in the procedure that a crankshaft is assembled to the machine body in the conventional diesel engine production process. The machine body positive positioned crankshaft assembling method comprises the following steps: fixing the crankshaft, lifting up the machine body to move downwards, and pre-positioning with the crankshaft; and fixing the machine body, raising the crankshaft, and finally positioning and mounting the crankshaft on the machine body. The machine body positive positioned crankshaft assembling method is widely applied to a crankshaft assembling procedure when a medium-and-high-speed large-power diesel engine is produced.

Description

technical field [0001] The invention relates to the technical field of medium, high-speed and high-power diesel engines, in particular to a method and device for assembling a fuselage upright crankshaft. Background technique [0002] The process of installing the crankshaft of a high-speed and high-power diesel engine into the fuselage is one of the most important processes in diesel engine assembly. The fuselage and crankshaft of a large diesel engine are key parts, and the value of the fuselage and crankshaft accounts for about 25% of the value of the whole machine. Installation and maintenance are very important, which directly affect the quality and service life of the diesel engine. [0003] Most of the main bearing structures of medium and high-speed high-power diesel engines are of the upside-down type. As attached to the manual figure 1 As shown, the upside-down structure of the diesel engine is that the upside-down main bearing cap is connected to the fuselage th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/00
CPCB23P19/00B23P2700/07
Inventor 曹利平屈君王红新睢鹏周宏根田桂中
Owner SHANNXI DIESEL ENGINE HEAVY IND