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CN-224225280-U - Shaftless electric propeller for ship

CN224225280UCN 224225280 UCN224225280 UCN 224225280UCN-224225280-U

Abstract

The utility model discloses a shaftless electric propeller for a ship, wherein a groove is formed in the inner side wall of a shell, a sound absorbing plate is embedded in the groove, the inner side wall of the sound absorbing plate is fixedly connected with a connecting plate, the inner wall of the shell is fixedly connected with a silencing mechanism, the silencing mechanism comprises a sleeve, one end of the sleeve is fixedly connected with the inner wall of the shell, when the propeller works, a propeller blade is driven to rotate through a driving motor, when the driving motor works, the driving motor is connected with the shell by using the silencing mechanism to replace a traditional connecting bracket, a spring and a buffer pad in the silencing mechanism can absorb and buffer mechanical vibration between the driving motor and the shell, the vibration is transmitted to the shell and seawater, the spring provides elastic buffer, impact and mechanical stress generated when the motor works are slowed down, and the service life of equipment and structures is prolonged.

Inventors

  • ZHANG KAIYI
  • Cui Chunyuan

Assignees

  • 万力达船用动力系统(苏州)有限公司

Dates

Publication Date
20260512
Application Date
20250730

Claims (7)

  1. 1. The shaftless electric propeller for the ship comprises a shell (1) and is characterized in that a groove is formed in the inner side wall of the shell (1), a sound absorbing plate (2) is embedded in the groove, the inner side wall of the sound absorbing plate (2) is fixedly connected with a connecting plate (3), and a silencing mechanism is fixedly connected with the inner wall of the shell (1); The silencing mechanism comprises a sleeve (4), one end of the sleeve (4) is fixedly connected to the inner wall of the shell (1), a connecting sleeve (5) is fixedly connected to the inside of the sleeve (4), a cushion pad (7) is fixedly connected to the inside of the connecting sleeve (5) through an A spring (6), a B spring (8) is fixedly connected to the surface of the cushion pad (7), a telescopic rod (9) is fixedly connected to one end of the B spring (8), and the outer surface of the telescopic rod (9) is slidably connected to the inside of the sleeve (4).
  2. 2. The shaftless electric propeller for a ship according to claim 1, wherein sliding blocks (10) are fixedly connected to two ends of the telescopic rod (9), sliding grooves are formed in two sides of the sleeve (4), the outer surface of the sliding blocks (10) is slidably connected to the inner portions of the sliding grooves, round holes are formed in the middle of the sliding blocks (10), and upright rods (11) are slidably connected to the inner portions of the round holes.
  3. 3. The shaftless electric propeller for a ship according to claim 2, wherein one end of the upright (11) is fixedly connected with a fixing piece (12), the sliding block (10) is fixedly connected with the fixing piece (12) through a C spring (13), and the outer surface of the upright (11) penetrates through the C spring (13).
  4. 4. The shaftless electric propeller for a ship according to claim 2, wherein one end of the telescopic rod (9) is fixedly connected with a frame ring (14), the inner side wall of the frame ring (14) is fixedly connected with a driving motor (15), the output end of the driving motor (15) is in spline connection with a shaft sleeve (16), and the upper surface of the shaft sleeve (16) is fixedly connected with a rotating mechanism.
  5. 5. The shaftless electric propeller for a ship as set forth in claim 4, wherein the rotating mechanism comprises a hub (17), the bottom of the hub (17) is fixedly connected to the upper surface of the shaft sleeve (16), and the outer surface of the hub (17) is clamped with propeller blades (18).
  6. 6. The shaftless electric propeller for a ship according to claim 5, wherein the surface of the propeller blade (18) is provided with a special-shaped groove, and sound-absorbing cotton (19) is embedded in the special-shaped groove.
  7. 7. The shaftless electric propeller for a ship according to claim 1, wherein the inner top wall of the shell (1) is fixedly connected with a sponge ring sleeve (20), and the inner side wall of the sponge ring sleeve (20) is fixedly connected with a protective net (21).

Description

Shaftless electric propeller for ship Technical Field The utility model relates to the technical field of propellers, in particular to a shaftless electric propeller for a ship. Background "Propeller" is a device used for generating thrust and realizing movement of ships, submarines, land vehicles and the like, and is a core part of pushing equipment, and directly affects the performance, safety and efficiency of the transportation means. In the prior art, chinese patent utility model discloses a shaftless electric propeller (publication No. CN 220010061U), in particular to a shell body provided with an inner ring groove, a stator is axially fixed on the inner ring groove, a shaftless rotor is arranged on the inner ring of the stator, bearing contact ring surfaces are respectively arranged at two ends of the shaftless rotor concentrically with the stator, bearing ring seats are respectively arranged at two ends of the shell body, a plurality of rolling bearings are uniformly distributed on the inner side outer surface of the bearing ring seats, the rolling bearings are connected with the bearing ring seats through the inner rings of the rolling bearings, and the outer rings of the rolling bearings are in linear contact with the bearing contact ring surfaces. The arrangement of the bearing ring seat and the rolling bearing in the prior art solves the technical problem that the bearing assembly is difficult to maintain and replace due to the tight assembly mode caused by the high-precision requirement caused by the direct contact surface friction. However, when the propeller works, the driver still faces a loud confusion, and other potential operation prompts or alarms can be covered by high noise, so that the control safety is affected, the high noise accompanies vibration, structural fatigue and early damage are caused, and the maintenance cost is increased. Accordingly, the present utility model provides a shaftless electric propeller for a ship to solve the above-mentioned problems. Disclosure of utility model The utility model provides a shaftless electric propeller for a ship, and aims to solve the problems in the background art. The shaftless electric propeller for the ship comprises a shell, wherein a groove is formed in the inner side wall of the shell, a sound absorbing plate is embedded in the groove, the inner side wall of the sound absorbing plate is fixedly connected through a connecting plate, and a silencing mechanism is fixedly connected to the inner wall of the shell; The silencing mechanism comprises a sleeve, one end of the sleeve is fixedly connected to the inner wall of the shell, a connecting sleeve is fixedly connected to the inside of the sleeve, a cushion pad is fixedly connected to the inside of the connecting sleeve through an A spring, a B spring is fixedly connected to the surface of the cushion pad, a telescopic rod is fixedly connected to one end of the B spring, and the outer surface of the telescopic rod is slidably connected to the inside of the sleeve. As further optimization, the sliding blocks are fixedly connected to the two ends of the telescopic rod, the sliding grooves are formed in the two sides of the sleeve, the outer surfaces of the sliding blocks are slidably connected to the inner portions of the sliding grooves, round holes are formed in the middle of the sliding blocks, and the vertical rods are slidably connected to the inner portions of the round holes. As further optimization, one end fixedly connected with stationary blade of pole setting, through C spring fixed connection between sliding block and the stationary blade, the surface of pole setting runs through in the inside of C spring. As further optimization, one end fixedly connected with frame ring of telescopic link, the inside wall fixedly connected with driving motor of frame ring, driving motor's output spline connection has the axle sleeve, the upper surface fixedly connected with slewing mechanism of axle sleeve. As a further optimization, the rotating mechanism comprises a hub, the bottom of the hub is fixedly connected to the upper surface of the shaft sleeve, and the outer surface of the hub is clamped with propeller blades. As further optimization, the surface of the propeller blade is provided with a special-shaped groove, and sound-absorbing cotton is embedded in the special-shaped groove. As further optimization, the inner top wall of the shell is fixedly connected with a sponge ring sleeve, and the inner side wall of the sponge ring sleeve is fixedly connected with a protective net. Compared with the prior art, the application has the beneficial effects that: 1. Through the silencing mechanism, when the propeller works, the propeller blade is driven to rotate through the driving motor, when the driving motor works, the driving motor is connected with the shell by using the silencing mechanism to replace a traditional connecting bracket, and a spring and a buffer pad in the silencing mecha