Navigation system level reference apparatus

Abstract

The invention relates to a horizontal reference device for the guidance system. It includes the measuring table, the adjusting bolt and the basement. The top of the measuring table is the base table and the lower is the soleplate which is parallel with the base table. The cross rib plate is between the base table and the soleplate which is set with four bolt holes in which is the adjusting bolt. The bottom of the adjusting bolt is welded on the basement. The upper nut is spinning on the screw thread of the lug bolt hole and the down nut is spinning on the screw thread of the down surface adjusting bolt. The measuring table is fixed with the adjusting bolt by the four upper and down nuts. The top of the basement is the table which is welded with the four adjusting nuts and the reinforced rib plate is welded on the shipping board. The device can be fixed in the defined position of the ship to get the high precision of the horizontal and install easily.

Description

technical field

[0001] The invention relates to a horizontal reference device, in particular to a horizontal reference device for a navigation system. Background technique

[0002] The leveling device used in the navigation system has very strict requirements on its accuracy in the shipbuilding industry, and it must maintain an accurate level to achieve certain special operations in navigation. The conventional method that adopts at present is to use: weld an iron plate at the corresponding position of hull main keel, after the iron plate that is welded cools down, grind the plane of iron plate by hand, until this plane reaches strict level requirement. The shortcomings of this manual grinding plane are very prominent, mainly in:

[0003] ①The workload of manual grinding is heavy. Manual grinding of the horizontal device of the navigation system after welding iron plates will result in a huge workload for the staff. The navigation system is located on the centerline of the...

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