Test table for life saving boat lowering device

[0018] Description with accompanying drawings. In Fig. 1, the upper platform 15 and the lower platform 1 adopt a rectangular frame structure. The rear end of the upper platform 15 and the rear end of the lower platform 1 are connected by a trim shaft 14. The trim cylinder 5 is respectively connected with the trim cylinder front pendulum shaft support 6 and the trim cylinder upper hinge seat 7 and can be rotated and retracted. The front swing axis support 6 of the oil cylinder is connected with the lower platform 1, and the upper hinge seat 7 of the trim oil cylinder is welded to the upper platform 15. The trim oil cylinder 5 is an intermediate hinge type, the piston rod diameter is φ125 mm, the piston diameter is φ200 mm, and the stroke is 1300 mm. . The upper and lower ends of the tilting cylinder 2 are respectively connected with the upper hinge base 4 of the tilting cylinder and the lower hinge base 3 of the tilting cylinder and can be rotated and telescopic. The lower hinge base 3 of the tilting cylinder is fixed on the foundation with anchor bolts, and the tilting cylinder is fixed on the foundation. The hinge base 4 is welded to the lower platform 1, and the tilting cylinder 2 is a hinge type at both ends. The piston rod diameter is φ125 mm, the piston diameter is φ200 mm, and the stroke is 1850 mm. The tilt rotation shaft 10 is inserted into the upper tilt hinge base 8 and the lower tilt hinge base 9. The upper tilt hinge base 8 is welded to the lower platform 1, and the lower tilt hinge base 9 is fixed on the foundation with anchor bolts. The tilt positioning frame 11 adopts an arc box structure. The upper end of the tilt positioning frame 11 is welded on the lower platform 1 and inserted into the tilt positioning pin base 13. There are several positioning pin holes on the tilt positioning frame 11. The positioning pin base 13 is provided with pin holes and fixed on the foundation with anchor bolts. The tilt positioning pins 12 can be inserted into the pin holes of the tilt positioning frame 11 and the pin holes of the tilt positioning pin base 13 at different positions. The front end of the upper platform 15 is welded with a safety positioning pin upper plate 16, and the front end of the lower platform 1 is welded with a safety positioning pin lower plate 18. The safety positioning pin upper plate 16 and the safety positioning pin lower plate 18 are respectively provided with positioning pin holes, and the safety positioning pin 17 It can be inserted into its positioning pin hole. The trim positioning frame 19 adopts a small arc (approximately straight line) box structure. The upper end of the trim positioning frame 19 is welded to the upper platform 15 and there are several positioning pin holes. The trim positioning pin 20 can be inserted into the trim positioning frame 19 The pin holes in different positions and the pin holes of the vertical tilt positioning seat of the lower platform 1.

[0019] Fix the lowering device on the upper platform 15, the upper platform 15 and the lower platform 1 are in a horizontal state, and the horizontal positioning pin 12, the safety positioning pin 17 and the vertical positioning pin 20 are inserted into the respective positioning pin holes. Horizontal state test of lifeboat launching device. As shown in Figure 1, Figure 2.

[0020] Figure 3 shows the state of the lifeboat launching device test bench when it is in a roll state test. Fix the lifeboat launching device on the upper platform 15, the upper platform and lower platform are in a horizontal state, pull out the tilting pin 12, supply oil to the tilting cylinder 2, and extend the tilting cylinder to push the upper platform and the lower platform After rotating to the required angle α with the tilt axis 10 as the rotation center, the tilt cylinder stops and inserts the tilt positioning pin 12 into the positioning pin hole of the tilt positioning frame 11 and the positioning pin hole of the tilt positioning pin base 13 , Which becomes the state shown in Figure 3. Then pull out the safety positioning pin 17 and pull out the trim positioning pin 20 to supply oil to the trim cylinder 5. The trim cylinder extends and pushes the upper platform 15 to rotate to the required β angle with the trim shaft 14 as the center of rotation. , The trim cylinder stops, and insert the trim positioning pin 20 into the positioning pin hole of the trim positioning frame 19 and the pin hole of the trim positioning seat of the lower platform. At this time, the combined tilt + trim of the lowering device can be performed State test. Figure 4 Indicates the state of the lifeboat launching device test bench during trim test. First pull out the safety positioning pin 17, and then pull out the trim positioning pin 20, start the hydraulic station to supply oil to the trim cylinder 5, the trim cylinder extends and pushes the upper platform 15 to rotate to the center axis with the trim shaft 14 as the center axis. After the required β angle, the trim cylinder stops, and then insert the trim positioning pin 20 into the positioning pin hole of the lower platform 1 and the corresponding positioning pin hole of the trim positioning frame 19. At this time, the upper and lower platforms are fixed on β angle state.