Exhaust valve return working table

A technology of rotary workbench and exhaust valve, which is applied to the necessary equipment for repair and maintenance, disassembly and assembly of exhaust valve components of diesel engines, and the field of exhaust valve rotary workbench, which can solve the problem of damage to screw holes and insufficient overall structural strength and rigidity , small space height and other issues, to achieve the effect of labor-saving operation, high strength and rigidity, and good stability

Inactive Publication Date: 2006-09-20
HUDONG HEAVY MACHINERY
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The stress point of the exhaust valve assembly is concentrated on the screw holes on its side, which leads to some inherent defects in the rotary table with this structure:
[0007] (1) Since the force point is concentrated on the screw hole on the side of the valve casing, under the action of bending moment, there is a tendency to damage the thread of the screw hole;
[0008] (2) It is only suitable for the exhaust valve mechanism with light weight and small space height;
[0009] (3) Even if the derived double fulcrum force type rotary table, see image 3 , the strength and rigidity of its overall structure are obviously not enough

Method used

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Embodiment Construction

[0062] Below in conjunction with accompanying drawing and embodiment the present invention will be further described, but should not limit protection scope of the present invention with this:

[0063] see first Figure 4 , Figure 5 , Image 6 with Figure 7 , Figure 4 , Figure 5 with Image 6 It is a structural schematic diagram of a specific embodiment of the present invention. It can be seen from the figure that the exhaust valve rotary table of the present invention includes a rotary frame 1, a transmission mechanism 2 and a support 3. The rotary frame 1 is composed of two end plates 11, a The base plate 12, the two side plates 14, and the rigid frame formed by the shaft extensions 16 at both ends are fixed. The base plate 12 has a central through hole 121 for installing the exhaust valve. There are four pillars 13 on the ground, and there are pillar screw holes 131 on the top of the pillars 13, and there are four long studs 15 correspondingly. 11 is centered on t...

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Abstract

A rotary bench for installing and repairing the exhaust valve of large-diameter diesel engine is composed of a rotary frame which is a rigid frame consisting of two end plate, one bottom plate, two side plates and two end axles, a supporter which is a trapezoidal floor frame consisting of two end frames and two side frames, and a drive mechanism consisting of a pair of deviating gears and a worm-gear set. It has high strength, rigidity and stability.

Description

technical field [0001] The invention relates to a marine diesel engine, in particular to an exhaust valve rotary workbench for a low-speed diesel engine exhaust valve, which is a necessary equipment for disassembling, repairing and maintaining the exhaust valve assembly of a diesel engine. Background technique [0002] Due to the rapid development of modern computer technology, the control of the ship can be realized as an unmanned cabin, which forces the control of the main engine of the ship to develop in the direction of intelligence. This requires that the structural elements of the engine (for example: exhaust valve mechanism, etc.) not only have perfect functions, but also must be able to obtain effective maintenance in time to ensure long-term reliable operation of the engine. [0003] As the high-temperature exhaust gas converted from the working fluid of the diesel engine must pass through the exhaust valve mechanism, it is prone to failure due to continuous erosion...

Claims

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Application Information

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IPC IPC(8): B25H1/02B25H1/14
Inventor 赵殿钧赵则强沈莉
Owner HUDONG HEAVY MACHINERY
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