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CN-122009452-A - Blade structure, propulsion power device and straight wing type propulsion equipment

CN122009452ACN 122009452 ACN122009452 ACN 122009452ACN-122009452-A

Abstract

The invention belongs to the technical field of ship propellers, and discloses a blade structure, a propulsion power device and straight wing type propulsion equipment. The blade structure comprises a blade, a first rotary driving part, a mounting sleeve, a connecting bearing, a first sealing assembly and a second sealing assembly, wherein a first transmission shaft is arranged on the blade, the first rotary driving part drives the blade to rotate through the first transmission shaft, the mounting sleeve is in rotary fit with the first transmission shaft, the connecting bearing is arranged between the inner wall of the mounting sleeve and the first transmission shaft, the first sealing assembly and the second sealing assembly are respectively arranged on two sides of the connecting bearing along the preset direction, the mounting sleeve is in sealing connection with the first transmission shaft through the first sealing assembly and the second sealing assembly, and grease can be conveyed to the connecting bearing and the first sealing assembly, so that the structural complexity of the blade structure is reduced, the sealing performance of the blade structure is improved, and the running stability and the transmission efficiency of the blade structure are ensured.

Inventors

  • DU PENG
  • SHU YONGDONG
  • PI ZHIDA
  • FANG CHAO
  • CAO SHISONG
  • CHEN DAIMING

Assignees

  • 南京高精船用设备有限公司

Dates

Publication Date
20260512
Application Date
20260401

Claims (10)

  1. 1. Blade structure, its characterized in that includes: a blade (100) on which a first transmission shaft (110) extending in a preset direction is provided; A first rotary driving member (200) connected to the first transmission shaft (110) and configured to drive the blade (100) to rotate around the preset direction through the first transmission shaft (110); The utility model provides a sealed lubrication unit (300), includes installation sleeve (310), connecting bearing (320), first seal assembly (330) and second seal assembly (340), installation sleeve (310) cover is located first transmission shaft (110) and with first transmission shaft (110) normal running fit, connecting bearing (320) set up in the inner wall of installation sleeve (310) with between first transmission shaft (110), first seal assembly (330) with second seal assembly (340) all set up in installation sleeve (310), and divide to locate connecting bearing (320) are along the both sides of predetermineeing the direction, installation sleeve (310) are through first seal assembly (330) with second seal assembly (340) with first transmission shaft (110) sealing connection, be provided with first oil transportation passageway (350) on sealed lubrication unit (300), grease can be passed through first oil transportation passageway (350) carry to connecting bearing (320) with first seal assembly (330) department.
  2. 2. The blade structure according to claim 1, wherein the first sealing assembly (330) comprises a plurality of first sealing rings (331) and a plurality of first sealing rings (332), the plurality of first sealing rings (332) are continuously arranged along the preset direction, the first sealing rings (332) are arranged between the inner hole wall of the mounting sleeve (310) and the first transmission shaft (110) in a sealing manner, two optionally connected first sealing rings (332) are all connected in a sealing manner through one first sealing ring (331), the first oil conveying channel (350) comprises an oil passing ring groove arranged in the first sealing rings (331), and grease can be conveyed between the inner hole wall of the first sealing rings (332) and the first transmission shaft (110) through the oil passing ring groove.
  3. 3. The blade structure according to claim 1, wherein the second sealing assembly (340) comprises a second sealing ring (341), and the second sealing ring (341) is sealed and sleeved on the first transmission shaft (110) and is in sealing connection with the inner hole wall of the mounting sleeve (310).
  4. 4. A blade structure according to claim 3, characterized in that a mounting ring groove (311) is provided on the inner hole wall of the mounting sleeve (310), the mounting ring groove (311) comprises a first notch and a second notch which are communicated, the first notch is opened towards the radial direction of the mounting sleeve (310), the second notch is opened towards the preset direction, the second sealing ring (341) is installed in the mounting ring groove (311), the second sealing ring (341) passes through the first notch and is in sealing connection with the first transmission shaft (110), a first sealing cover (312) detachably connected with the first sealing ring (312) is arranged at the end part of the mounting sleeve (310), and the first sealing cover (312) is used for sealing the second notch so as to limit the second sealing ring (341) in the mounting ring groove (311).
  5. 5. The blade arrangement according to claim 4, wherein the second sealing assembly (340) further comprises a sealing member (342) arranged on the first cover (312), the first transmission shaft (110) rotatably penetrates through the sealing member (342), and the first cover (312) is in sealing connection with the first transmission shaft (110) through the sealing member (342).
  6. 6. The blade arrangement according to any of claims 1-5, wherein the sealed lubrication unit (300) further comprises a second cover (370), the first transmission shaft (110) being rotatably arranged through the second cover (370), the second cover (370) being adapted to seal off a nozzle of the mounting sleeve (310) near one end of the blade (100); the second sealing cover (370) is provided with a filling groove (371), the sealing lubrication unit (300) further comprises a sealing filler (372), and the sealing filler (372) is filled in the filling groove (371) to seal a gap between the second sealing cover (370) and the first transmission shaft (110).
  7. 7. The blade structure according to any one of claims 1-5, wherein the blade structure (10) further comprises a limiting member (400) located at one side of the mounting sleeve (310), and the limiting member (400) is sleeved on the first transmission shaft (110) and is in threaded connection with the first transmission shaft (110) and is used for limiting the relative position of the mounting sleeve (310) and the first transmission shaft (110).
  8. 8. Propulsion power plant, characterized by comprising a second rotary drive (20), a transmission assembly (30) and a plurality of blade structures (10) according to any one of claims 1-7, the output of the second rotary drive (20) being connected to the transmission assembly (30), the transmission assembly (30) being connected to a plurality of the blade structures (10), the second rotary drive (20) being configured to rotate together a plurality of the blade structures (10) by means of the transmission assembly (30).
  9. 9. A propulsion power plant as claimed in claim 8, characterized in that the transmission assembly (30) comprises a second transmission shaft (31) and a connection seat (32), the connection seat (32) being rotatably connected to a plurality of the blade structures (10), one end of the second transmission shaft (31) being connected to the connection seat (32) and the other end being connected to the output end of the second rotary drive member (20), the second rotary drive member (20) being adapted to drive the second transmission shaft (31) to rotate the connection seat (32) around the axial direction of the second transmission shaft (31), the connection seat (32) driving a plurality of the blade structures (10) to rotate together around the axial direction of the second transmission shaft (31); The propulsion power device (1) further comprises an oil supply piece (41) and a plurality of oil delivery branch pipes (42), the transmission assembly (30) is provided with a second oil delivery channel (33), the oil delivery branch pipes (42) are in one-to-one correspondence with the blade structures (10), one end of each oil delivery branch pipe (42) is communicated with the corresponding second oil delivery channel (33), the other end of each oil delivery branch pipe is communicated with the corresponding first oil delivery channel (350) of the blade structure (10), the oil supply piece (41) is connected with the transmission assembly (30) and is configured to convey grease to the second oil delivery channel (33), and the grease can be conveyed from the second oil delivery channel (33) to the corresponding first oil delivery channel (350) through one oil delivery branch pipe (42).
  10. 10. Straight-wing propulsion plant, characterized by comprising a mounting bracket (2) and a propulsion power unit (1) according to any one of claims 8 and 9, said propulsion power unit (1) being mounted to said mounting bracket (2).

Description

Blade structure, propulsion power device and straight wing type propulsion equipment Technical Field The invention relates to the technical field of ship propellers, in particular to a blade structure, a propulsion power device and straight wing type propulsion equipment. Background The straight wing type propeller is used as a special propulsion device capable of outputting thrust in 360 degrees in all directions, and blades of the special propulsion device revolve around a central shaft and synchronously rotate around the axis of the straight wing type propeller, so that the thrust direction can be regulated in real time on the premise of not changing the steering direction of the whole propeller, and the special propulsion device has excellent maneuvering performances such as in-situ revolution, transverse translation and accurate positioning, and is widely applied to the fields of port tugs, workboats, ferries, special engineering ships, shallow-draft inland ships and the like. However, the stress state of the blade is very complex in the process of the compound movement of revolution and rotation, the stress angle is continuously and frequently changed along with the movement, so that the blade bearing is easy to be damaged by fatigue, the sealing part is easy to fail and leak, the operation reliability and the service life of the device are seriously reduced, and the use requirement of long-term stable working conditions is difficult to meet. In addition, the blades of the existing straight-wing propeller are connected with the rotary driving mechanism by adopting a multi-stage transmission chain, the transmission links of the structure are multiple, lubrication points are dispersed, the complexity of the whole structure of the blade is remarkably increased, the problems of poor lubrication, aggravation of abrasion and the like are easily caused during long-term operation, the failure rate of equipment and the failure troubleshooting difficulty are remarkably improved, and the improvement of the whole performance and the operation and maintenance efficiency of the propeller is restricted. Accordingly, there is a need for a blade structure, propulsion power unit and straight wing propulsion apparatus that solve the above problems. Disclosure of Invention The invention aims to provide a blade structure, a propulsion power device and straight wing type propulsion equipment, which reduce structural complexity, improve structural tightness and ensure running stability and transmission efficiency. To achieve the purpose, the invention adopts the following technical scheme: in a first aspect, there is provided a blade structure comprising: the blade is provided with a first transmission shaft extending along a preset direction; the first rotary driving piece is connected with the first transmission shaft and is configured to drive the blades to rotate around a preset direction through the first transmission shaft; The sealing lubrication unit comprises a mounting sleeve, a connecting bearing, a first sealing component and a second sealing component, wherein the mounting sleeve is sleeved on the first transmission shaft and is in running fit with the first transmission shaft, the connecting bearing is arranged between the inner wall of the mounting sleeve and the first transmission shaft, the first sealing component and the second sealing component are arranged on the mounting sleeve and are respectively arranged on two sides of the connecting bearing along the preset direction, the mounting sleeve is in sealing connection with the first transmission shaft through the first sealing component and the second sealing component, a first oil conveying channel is arranged on the sealing lubrication unit, and grease can be conveyed to the connecting bearing and the first sealing component through the first oil conveying channel. Optionally, the first seal assembly includes a plurality of first sealing washer and a plurality of first sealing ring, and a plurality of first sealing rings are arranged in succession along predetermineeing the direction, and first sealing ring seals and sets up between installation sleeve's hole pore wall and first transmission shaft, all through a first sealing washer sealing connection between two first sealing rings that link to each other wantonly, and first oil transportation passageway is including setting up in the oil groove that crosses of first sealing washer, and grease can be carried to between hole pore wall and the first transmission shaft of first sealing ring through the oil groove that crosses. Optionally, the second sealing assembly comprises a second sealing ring, and the second sealing ring is sealed and sleeved on the first transmission shaft and is in sealing connection with the inner hole wall of the mounting sleeve. Optionally, be provided with the installation annular on the hole pore wall of installation sleeve, the installation annular is including the first not