Autoboat propulsive device
A technology for propulsion devices and motorboats, which is applied to ship propulsion, propulsion components, ships, etc., and can solve problems such as weakening the reverse force, inability to reverse, and large diameter of the propeller
Inactive Publication Date: 2011-01-05
WUHU SHIPYARD CO LTD
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AI Technical Summary
Problems solved by technology
The reverse rotation of the propeller can provide the reverse force, but because the draft of the motorboat is shallow and the diameter of the propeller is large, some of the blades are located on the water surface, which is prone to air suction and greatly weakens the reverse force, affecting the reverse speed of the motorboat or making it impossible to reverse
Method used
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[0014] Such as figure 1 , figure 2 As shown, the propulsion device of the motorboat includes a stern shaft 6, a water jet pump 5 and a rudder blade 4 at the rear of the water jet pump 5. , Motorboat stern seal plate 2 is provided with the stern tongue member 1 that prevents air from entering the water jet pump 5 when going backwards. The stern tongue part 1 includes an upper bearing seat 7, an ear plate 9, a frame 11, a stern tongue surrounding frame 8 and a tongue plate 10. The upper bearing seat 7 is fixedly connected to the stern seal plate 2 of the motorboat, and the tongue plate 10 is covered by one part of the frame 11. On the side, the periphery of the frame 10 has a transom frame 8 in contact with the motorboat transom 2 , there is an ear plate 9 between the frame 10 and the upper seat 7 , and the periphery of the transom frame 8 in contact with the motorboat transom 2 has Sealing element 12, sealing element 12 is made up of the sealing strip in the stern tongue sur...
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The invention discloses an autoboat propulsive device comprising a stern shaft, a water injection pump and a rudder blade arranged at the rear part of the water injection pump, wherein, the tail part of the rudder blade is positioned below a stern transom plate of the autoboat; the stern transom plate is provided with a stern tongue component preventing the air entering into the water injection pump when the autoboat reverses; the stern tongue component comprises an upper bearing, an ear plate, a frame, a stern tongue surrounding frame and a lingual plate, wherein, the upper bearing is fixedly connected on the stern transom plate; the lingual plate is covered at one side of the frame; the periphery of the frame is provided with the stern tongue surrounding frame which is contacted with the stern transom plate; and the ear plate is arranged between the frame and the upper bearing. The autoboat propulsive device of the invention adopts the structure as follows: the tail part of the autoboat is provided with the stern tongue component to prevent the air entering into the water injection pump when the autoboat reverses, thus enhancing the reversing force, and promoting the reversing performance of the autuboat.
Description
technical field [0001] The invention relates to a motorboat, in particular to a motorboat propulsion device. Background technique [0002] The existing powerboat propulsion device includes a main engine, a gear box, a stern shaft, a water jet pump and a rudder blade at the rear of the water jet pump. To maintain the buoyancy of the motorboat, provide enough water to ensure thrust. The reverse rotation of the propeller can provide the reverse force, but due to the shallow draft of the motorboat and the large diameter of the propeller, some of the blades are located on the water surface, which is prone to air suction and greatly weakens the reverse force, affecting the reverse speed of the motorboat or making it impossible to reverse. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a motorboat propulsion device, which can increase the reverse force and improve the reverse performance of the motorboat. [0004] To...
Claims
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IPC IPC(8): B63H11/04B63B1/08
CPCY02T70/128Y02T70/10
Inventor 陈佳军张史记王吕贵
Owner WUHU SHIPYARD CO LTD