Ship propeller provided with detachable blades and suitable for ice area

Abstract

The ship propeller comprises a rotating shaft, a propeller hub is arranged at one end of the rotating shaft, a plurality of propeller blade pieces are detachably arranged on the propeller hub and distributed in a circumferential array mode, and a first movement assembly, a second movement assembly and a locking assembly are further arranged in the propeller hub. The first movement assembly can drive the second movement assembly to move, and the second movement assembly drives the locking assembly to lock or loosen the blades. Through mutual cooperation of the first movement assembly and the second movement assembly, the locking assemblies can be driven to lock and fix or separate and loosen the blades, so that the blades are efficiently replaced, meanwhile, only one driving source is needed in the embodiment to drive the multiple locking assemblies to lock or loosen the blades, and more efficiency and convenience are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of ship propellers, and in particular relates to a ship propeller with detachable blades suitable for ice areas. Background Art

[0002] In recent years, with global warming, the sea ice in the Arctic region has gradually decreased, and commercial navigation on the Arctic route has become a reality. Compared with traditional routes, the Arctic route has attracted much attention due to its shorter voyage and less congestion, but due to the unique ice environment of the route, the hull and its components are extremely susceptible to damage caused by the impact of sea ice. As the core power component of the ship, the propeller is directly exposed to the sea ice environment and will continue to be impacted by sea ice during operation. The degree of damage caused by the sea ice is greatly increased, which shortens the life of the propeller and requires regular inspection and replacement. During navigation in the ice area, if the propeller is damaged and fails due to the action of sea ice, it will cause serious economic losses and safety hazards. Therefore, designing a ship propeller with detachable blades is of great significance for ships sailing in ice areas.

[0003] In the prior art, there is a technical solution with application number 2022235977125 and name “A low-resistance ship propeller”, in which the blades are fixedly connected to the fixing ring by fixing bolts. However, in actual use, when the blades need to be replaced, it is necessary to remove the fixing bolts one by one, and then re-screw the new blades on the propeller hub through the fixing bolts to achieve replacement; however, in order to ensure rigidity, the fixing bolts are usually made of metal. When the metal fixing bolts are immersed in water for a long time, the humid environment can easily cause the fixing bolts to rust. Once the fixing bolts are rusted, it will make it difficult to disassemble the fixing bolts, and it will be time-consuming and labor-intensive to disassemble them one by one, and external tools need to be used for disassembly, which affects the efficiency of blade replacement. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to solve the problems in the above-mentioned prior art and provide a ship propeller with detachable blades suitable for ice areas. The stability of the blades can be ensured during operation, and the blades can be quickly and conveniently disassembled and installed when replacement and maintenance are required, thereby improving the replacement efficiency of the blades.

[0005] The present invention is implemented by the following technical solutions: A ship propeller with detachable blades suitable for ice areas, comprising a rotating shaft, a propeller hub is arranged at one end of the rotating shaft, a plurality of propeller blade parts are detachably arranged on the propeller hub, the plurality of propeller blade parts are distributed in a circumferential array, a plurality of locking assemblies are slidably arranged inside the propeller hub, the plurality of locking assemblies correspond to the propeller blade parts one by one, the locking assemblies can be slidably inserted into the locking propeller blade parts or separated and loosened along a first direction; a support ring and a support frame are arranged in parallel at intervals inside the propeller hub, the direction in which the support ring and the support frame are arranged is perpendicular to the rotating shaft, a plurality of first movement assemblies distributed in a circumferential direction are slidably arranged on the side wall of the support ring, the plurality of first movement assemblies correspond to the plurality of locking assemblies The components correspond one to one, the first motion component can slide along the second direction, one end of the first motion component abuts against an end of the locking component away from the blade member, the first motion component can drive the locking component to move, a second motion component is arranged inside the hub, the compression end of the second motion component is arranged inside the support frame, the driving end of the second motion component is arranged in the middle of multiple first motion components, one end of the first motion component away from the locking component abuts against the driving end of the second motion component, the second motion component can move in the first direction, the second motion component can drive the first motion component to move, and the first direction and the second direction are perpendicular to each other.

[0006] To optimize the above technical solutions, the specific measures taken also include: Furthermore, the blade component includes a blade body, a fixing seat and a fixing plate, the blade body is arranged on the fixing seat, the fixing plate is arranged on a side of the fixing seat away from the blade body, a plurality of slots are arranged at equal intervals on the side wall of the hub, the fixing seat is arranged on the side wall of the hub, the fixing plate is inserted into the slot, a fixing groove is arranged on the fixing plate, and the locking assembly can be inserted into or away from the fixing groove.

[0007] Furthermore, the locking assembly includes a locking plug, a connecting rod, a locking spring and a locking rod, one end of the connecting rod is slidably set in a slide groove on the inner wall of the hub, the other end of the connecting rod is connected to the locking plug, both ends of the locking rod are set in the slide groove, the connecting rod is slidably inserted into the locking rod, the locking rod and the locking plug are parallel to each other, the locking spring is set on the locking rod, the slide groove is set along a first direction, the locking spring can push the locking rod away from the fixing plate in the initial state, the locking rod can drive the locking plug to be inserted into the slot of the fixing plate or separated from the slot away from the fixing plate, and the end of the locking plug away from the fixing plate rests on the first moving assembly.

[0008] Furthermore, the support ring is an annular plate with a circular through hole in the middle, an annular groove is provided on the support ring, the first motion component is partially arranged in the annular groove, and the driving end of the second motion component is arranged in the circular through hole.

[0009] Furthermore, the first motion component includes a sliding rod, which is arranged in an annular groove, a slider is slidably arranged on the side of the sliding rod close to the circular through hole, a compression spring is arranged on the side of the sliding rod away from the circular through hole, the slider is connected to the compression spring, and the compression spring pushes the slider away from the circular through hole in an initial state, a pushing block is connected to one side of the slider, one end of the pushing block abuts against the locking plug block, and the other end of the pushing block abuts against the driving end of the second motion component, and the slider can drive the pushing block to move axially along the sliding rod.

[0010] Furthermore, the pushing block and the locking plug block are both trapezoidal structures, a first inclined surface is provided on the side of the pushing block close to the locking plug block, a second inclined surface is provided on the side of the locking plug block close to the pushing block, the directions and angles of the first inclined surface and the second inclined surface are consistent, the first inclined surface and the second inclined surface are in contact with each other, the locking plug block and the pushing block are spliced ​​into an L-shaped structure in the initial state, a short rod is provided on the side of the pushing block close to the driving end of the second moving component, a ball is provided on the side of the short rod away from the pushing block, and the ball abuts against the driving end of the second moving component.

[0011] Furthermore, the driving end of the second motion component includes a connecting seat, and a polygonal boss is provided on the side of the connecting seat away from the compression end of the second motion component, and a ball is abutted on each side wall of the polygonal boss. The compression end of the second motion component includes a guide cylinder, an extrusion spring, a guide rod, and a piston. The guide cylinder is arranged on the support seat, one end of the guide rod is connected to the side of the connecting seat away from the boss, and the other end of the guide rod is connected to the piston, and the extrusion spring is arranged on the guide rod.

[0012] Furthermore, the support frame includes a support seat and multiple support rods, and the multiple support rods are circumferentially arranged on the side wall of the support seat, the guide rod is arranged inside the guide cylinder, and through hole 1 and through hole 2 are respectively arranged at both ends of the guide cylinder. One end of the guide rod passes through through hole 2 and is connected to the connecting seat, the outer ring of piston 1 is attached to the inner wall of the guide cylinder, the piston 1 is close to through hole 1, the through hole 1 is connected to a connecting pipe, an electromagnetic valve is arranged on the connecting pipe, and the connecting pipe is connected to a compression assembly.

[0013] Furthermore, the compression assembly includes a compression rod, a compression cylinder, and piston 2. The compression cylinder is connected to a connecting pipe. Piston 2 is slidably arranged in the compression cylinder. Hydraulic oil is arranged in the guide cylinder, the connecting pipe, and the compression cylinder between piston 1 and piston 2. One end of the compression rod away from piston 2 passes through the pulp hub, and a pressing cover is arranged at the end of the compression rod away from piston 2.

[0014] Furthermore, a mating block is provided at one end of the rotating shaft away from the hub, and a plurality of protrusions distributed along the axial direction of the rotating shaft are provided on the side wall of the mating block, a connecting sleeve is provided on the mating block, a connecting groove is provided on the inner wall of the connecting sleeve, and the protrusion is slidably arranged in the connecting groove, and the end of the connecting sleeve away from the mating block is connected to the tail shaft, and the tail shaft is connected to an external driving mechanism, and a buffer cover with an open end is provided on the rotating shaft, and the open end of the buffer cover faces the tail shaft, and a threaded block is provided on the side of the buffer cover away from the hub, and the threaded block is sleeved on the rotating shaft, and the side of the threaded block away from the buffer cover abuts against the protrusion of the mating block, and a threaded sleeve is threadedly connected to the threaded block, and the threaded sleeve is rotatably connected to the connecting sleeve, and a plurality of buffer holes are provided on the buffer cover.

[0015] Beneficial effects of the present invention: Compared with the prior art, the present invention discloses a ship propeller with detachable blades suitable for ice areas, which can lock and fix the blades through a locking assembly to ensure the stability and reliability of the blades during rotation. At the same time, the locking assembly can be quickly separated from the blades, which is convenient for replacing the blades and improves the efficiency of blade replacement. This technical solution uses the first motion assembly and the second motion assembly to cooperate with each other, so that when the locking assembly and the blade member are locked or separated, only one driving source is required to achieve the replacement of multiple blades. At the same time, the driving method is simple, the energy loss is small, and the efficiency is high.

[0016] The present technical solution also adopts a detachable assembly structure of the rotating shaft and the tail shaft, which further facilitates the overall disassembly of the rotating shaft for maintenance, and then the overall connection and installation with the tail shaft. It can be used in icy environments where it is impossible to directly operate the blades, greatly improving the convenience of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a ship propeller with detachable blades shown in Example 1 of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of the internal structure.

[0019] Figure 3 yes Figure 2 A partial enlarged view of some of the internal structures.

[0020] Figure 4 yes Figure 3 A partial enlarged view of part A.

[0021] Figure 5 yes Figure 3 A partial enlarged view of the middle part of the structure.

[0022] Figure 6 yes Figure 5 A partial enlarged view of part B.

[0023] Figure 7 It is a schematic structural diagram of a ship propeller with detachable blades shown in Example 2 of the present invention.

[0024] Figure 8 yes Figure 7 Schematic diagram of the internal structure.

[0025] The accompanying drawings are marked as follows: Rotating shaft 10, propeller hub 20, slot 21, slide groove 22, blade member 30, blade body 31, fixing seat 32, fixing plate 33, fixing groove 33a, locking assembly 40, locking plug 41, connecting rod 42, locking spring 43, locking rod 44, first moving assembly 50, sliding rod 51, sliding block 52, compression spring 53, pushing block 54, ball 55, second moving assembly 60, connecting seat 61, polygonal boss 62, guide cylinder 63, through hole 1 63a, through hole 2 63 b. Extrusion spring 64, guide rod 65, piston 1 66, support ring 70, circular through hole 71, annular groove 72, support frame 80, support seat 81, support rod 82, compression assembly 90, compression rod 91, compression cylinder 92, piston 2 93, connecting pipe 94, pressing cover 95, solenoid valve 96, matching block 100, flange 110, connecting sleeve 120, connecting groove 121, tail shaft 130, buffer cover 140, buffer hole 141, threaded block 150, threaded sleeve 160. DETAILED DESCRIPTION

[0026] In order to illustrate the technical solution and working principle of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Example 1 This embodiment provides Figure 1-6 The ship propeller with detachable blades suitable for ice areas shown in the figure can drive the locking component 40 to lock or separate and loosen the blades through the mutual cooperation of the first moving component 50 and the second moving component 60, thereby realizing efficient replacement of the blades. At the same time, in this embodiment, only one driving source is needed to drive multiple locking components 40 to lock or loosen the blades, which is more efficient and convenient.

[0028] A ship propeller with detachable blades suitable for use in ice areas includes a rotating shaft 10. A propeller hub 20 is provided at one end of the rotating shaft 10. A plurality of propeller blades 30 are detachably provided on the propeller hub 20. The plurality of propeller blades 30 are distributed in a circular array. A first motion component 50, a second motion component 60 and a locking component 40 are also provided inside the propeller hub 20. The first motion component 50 can drive the second motion component 60 to move, and the second motion component 60 drives the locking component 40 to lock or loosen the propeller blades.

[0029] The blade member 30 includes a blade body 31, a fixing seat 32 and a fixing plate 33. The blade body 31 is arranged on the fixing seat 32, and the fixing plate 33 is arranged on the side of the fixing seat 32 away from the blade body 31. A plurality of slots 21 are arranged at equal intervals on the side wall of the hub. The fixing seat 32 is arranged on the side wall of the hub, and the fixing plate 33 is inserted into the slot 21. A fixing groove 33a is arranged on the fixing plate 33, and the locking assembly 40 can be inserted into or away from the fixing groove 33a. The fixing seat 32 is an arc-shaped structure, and its arc is the same as the side wall of the hub, which can ensure that the fixing seat 32 is tightly fitted with the hub when it is arranged on the hub. At the same time, the fixing plate 33 and the fixing seat 32 are T-shaped structures. When multiple fixing seats 32 are arranged on the side wall of the hub, the multiple fixing seats 32 are spliced ​​with each other to form a protective layer covering the side wall of the hub, which can prevent water from flowing from the slot 21 into the interior of the hub. In order to improve the sealing effect, a waterproof gasket can be arranged between the fixing seat 32 and the side wall of the hub.

[0030] The locking assembly 40 can be inserted into the locking blade member 30 or separated and released by sliding along the first direction. The plurality of locking assemblies 40 correspond to the blade members 30 one by one, ensuring that each locking assembly 40 corresponds to one blade member 30 .

[0031] The locking assembly 40 includes a locking plug 41, a connecting rod 42, a locking spring 43 and a locking rod 44. One end of the connecting rod 42 is slidably set in the slide groove 22 on the inner wall of the hub, and the other end of the connecting rod 42 is connected to the locking plug 41. Both ends of the locking rod 44 are set in the slide groove 22. The connecting rod 42 slides and is inserted into the locking rod 44. The locking rod 44 and the locking plug 41 are parallel to each other. The locking spring 43 is set on the locking rod 44, and the slide groove 22 is set along the first direction. In the initial state, the locking spring 43 can push the locking rod 44 away from the fixing plate 33. The locking rod 44 can drive the locking plug 41 to be inserted into the slot 21 of the fixing plate 33 or separated from the slot 21 away from the fixing plate 33. The end of the locking plug 41 away from the fixing plate 33 rests on the first motion component 50. When the locking rod 44 is not subjected to external force, the locking plug 41 is released from the slot 21 away from the fixing plate 33 , that is, the locking plug 41 does not lock the blade in the initial state.

[0032] The locking plug 41 has two working states: When the propeller is working: it is necessary to ensure that the blades are fixed on the hub, so the locking rod 44 is in a compressed state under the action of the driving force of the first motion component 50 and the second motion component 60, driving the locking plug 41 to be inserted into the slot 21 of the fixing plate 33 to fix the blades.

[0033] During replacement and maintenance: the propeller blades need to be removed from the propeller hub, thereby releasing the driving force of the first motion assembly 50 and the second motion assembly 60, so that the locking block 41 returns to its initial state under the elastic force of the locking rod 44, thereby separating the locking block 41 from the fixing plate 33.

[0034] A support ring 70 and a support frame 80 are arranged in parallel and at intervals inside the propeller hub 20 . The support ring 70 is used to carry the first motion component 50 , and the support frame 80 is used to carry the second motion component 60 .

[0035] The direction in which the support ring 70 and the support frame 80 are arranged is perpendicular to the rotating shaft 10. A plurality of first motion components 50 distributed in the circumferential direction are slidably arranged on the side wall of the support ring 70. The plurality of first motion components 50 correspond to the plurality of locking components 40 one by one. The first motion components 50 can slide along the second direction. One end of the first motion component 50 abuts against one end of the locking component 40 away from the paddle member 30. The first motion component 50 can drive the locking component 40 to move. The support ring 70 is an annular plate with a circular through hole 71 in the middle. The support ring 70 is provided with an annular groove 72. Part of the first motion component 50 is arranged in the annular groove 72. The driving end of the second motion component 60 is arranged in the circular through hole 71.

[0036] The first motion component 50 includes a slide rod 51, which is arranged in an annular groove 72. A slider 52 is slidably arranged on the side of the slide rod 51 close to the circular through hole 71, and a compression spring 53 is arranged on the side of the slide rod 51 away from the circular through hole 71. The slider 52 is connected to the compression spring 53, and the compression spring 53 pushes the slider 52 away from the circular through hole 71 in the initial state. A pushing block 54 is connected to one side of the slider 52, one end of the pushing block 54 abuts against the locking plug 41, and the other end of the pushing block 54 abuts against the driving end of the second motion component 60. The slider 52 can drive the pushing block 54 to move axially along the slide rod 51.

[0037] A second motion component 60 is arranged inside the hub 20, and the compression end of the second motion component 60 is arranged inside the support frame 80. The driving end of the second motion component 60 is arranged in the middle of multiple first motion components 50. The end of the first motion component 50 away from the locking component 40 abuts against the driving end of the second motion component 60. The second motion component 60 can move in a first direction, and the second motion component 60 can drive the first motion component 50 to move. The first direction and the second direction are perpendicular to each other.

[0038] The driving end of the second motion component 60 includes a connecting seat 61, and a polygonal boss 62 is arranged on the side of the connecting seat 61 away from the compression end of the second motion component 60. A ball 55 is abutted on each side wall of the polygonal boss 62, and the ball 55 is connected to the push block 54. The compression end of the second motion component 60 includes a guide cylinder 63, an extrusion spring 64, a guide rod 65, and a piston 66. The guide cylinder 63 is arranged on the support seat 81, one end of the guide rod 65 is connected to the side of the connecting seat 61 away from the polygonal boss 62, the other end of the guide rod 65 is connected to the piston 66, and the extrusion spring 64 is arranged on the guide rod 65.

[0039] In order to better transmit the driving force of the first moving component 50 and the second moving component 60, the pushing block 54 and the locking plug block 41 are both trapezoidal structures. A first inclined surface is provided on the side of the pushing block 54 close to the locking plug block 41, and a second inclined surface is provided on the side of the locking plug block 41 close to the pushing block 54. The directions and angles of the first inclined surface and the second inclined surface are consistent, and the first inclined surface and the second inclined surface are in contact with each other. The locking plug block 41 and the pushing block 54 are spliced ​​into an L-shaped structure in the initial state, and a short rod 56 is provided on the side of the pushing block 54 close to the driving end of the second moving component 60, and the short rod 56 is connected to the ball 55 on the side away from the pushing block 54. The ball 55 abuts against the driving end of the second moving component 60, and the driving is achieved by relying on the inclined surfaces of the pushing block 54 and the locking plug block 41 that are in contact with each other.

[0040] The motion matching trajectory of the first motion component 50 and the second motion component 60 is: When the blades need to be locked, the second motion component 60 drives the piston 66 to move toward the circular through hole 71 under the action of the compression component 90. At this time, the polygonal boss drives the multiple push blocks 54 to move in the opposite direction away from the circular through hole 71.

[0041] When the blades need to be removed, the driving force of the compression assembly 90 is released, and the second motion assembly 60 returns to its initial state under the elastic force of the extrusion spring 64, which will drive the piston 1 66 to move away from the circular through hole 71. At this time, the polygonal boss will drive the multiple push blocks 54 to move toward the direction close to the circular through hole 71.

[0042] The support frame 80 includes a support seat 81 and multiple support rods 82, and the multiple support rods 82 are circumferentially arranged on the side wall of the support seat 81. The guide rod 65 is arranged inside the guide cylinder 63. The two ends of the guide cylinder 63 are respectively provided with a through hole 1 63a and a through hole 2 63b. One end of the guide rod 65 passes through the through hole 2 63b and is connected to the connecting seat 61. The outer ring of the piston 1 66 is attached to the inner wall of the guide cylinder 63. The piston 1 66 is close to the through hole 1 63a. The through hole 1 63a is connected to a connecting pipe 94. The connecting pipe 94 is provided with an electromagnetic valve 96. The connecting pipe 94 is connected to a compression assembly 90.

[0043] The compression assembly 90 includes a compression rod 91, a compression cylinder 92, and a piston 93. The compression cylinder 92 is connected to a connecting pipe 94. The piston 93 is slidably arranged in the compression cylinder 92. Hydraulic oil is arranged in the guide cylinder 63, the connecting pipe 94, and the compression cylinder 92 between the piston 1 66 and the piston 93. The end of the compression rod 91 away from the piston 93 passes through the paddle hub 20, and a pressing cover 95 is arranged at the end of the compression rod 91 away from the piston 93.

[0044] When locking the blades, the compression rod 91 drives the piston 2 93 to press the hydraulic oil into the guide cylinder 63, and then closes the connecting pipe 94 through the solenoid valve 96, so that the hydraulic oil maintains the state of compressing the piston 1 66. At this time, the first moving component 50 and the second moving component 60 will drive the locking block 41 to be inserted into the fixing plate 33 to keep the blades fixed and locked.

[0045] When the blades are separated, the solenoid valve 96 is opened, and the piston 66 returns to its initial state under the action of the extrusion spring 64, compressing the hydraulic oil into the compression cylinder 92 again. At this time, the locking plug 41 has no external driving force and returns to its initial state under the elastic force of the locking rod 44, thereby realizing the separation of the locking plug 41 and the fixing plate 33.

[0046] Example 2 This embodiment provides Figure 7-8 The ship propeller with detachable blades suitable for ice areas shown in the figure can realize the overall disassembly of the rotating shaft 10 through the matching relationship between the fastener, the connecting sleeve 120 and the threaded sleeve 160, so as to facilitate the replacement of the blades. It can be used in situations where the blades cannot be replaced in real time, thereby improving the applicable scenarios of the device.

[0047] A ship propeller with detachable blades suitable for ice areas, which differs from embodiment 1 in that a matching block 100 is provided at one end of a rotating shaft 10 away from a propeller hub, a plurality of protrusions 110 distributed along the axial direction of the rotating shaft 10 are provided on the side wall of the matching block 100, a connecting sleeve 120 is provided on the matching block 100, a connecting groove 121 is provided on the inner wall of the connecting sleeve 120, the protrusion 110 is slidably arranged in the connecting groove 121, and the end of the connecting sleeve 120 away from the matching block 100 is connected to a tail shaft 130, and the tail shaft 130 is connected to the outer The shaft 10 is connected to the driving mechanism of the part, a buffer cover 140 with one end open is sleeved on the shaft 10, the open end of the buffer cover 140 faces the tail shaft 130, a threaded block 150 is arranged on the side of the buffer cover 140 away from the propeller hub, the threaded block 150 is sleeved on the shaft 10, the side of the threaded block 150 away from the buffer cover 140 abuts against the protruding edge 110 of the matching block 100, a threaded sleeve 160 is threadedly connected on the threaded block 150, the threaded sleeve 160 is rotatably connected to the connecting sleeve 120, and a plurality of buffer holes 141 are opened on the buffer cover 140. In this embodiment, a rotating bearing can be used for the rotation connection.

[0048] During disassembly, the threaded sleeve 160 is rotated to separate the threaded sleeve 160 from the threaded block 150. At this time, the threaded sleeve 160 will drive the connecting sleeve 120 to separate from the matching block 100. Since the threaded sleeve 160 and the connecting sleeve 120 are connected in rotation, that is, when the threaded sleeve 160 rotates, the connecting sleeve 120 does not rotate synchronously with the threaded sleeve 160. When the threaded sleeve 160 is disengaged from the threaded block 150, the connecting groove 121 of the connecting sleeve 120 is also separated from the matching block 100, so that the rotating shaft 10 and the tail shaft 130 can be separated as a whole, which facilitates the disassembly and installation of the blades. After the blades are installed, the rotating shaft 10 and the tail shaft 130 are connected and fixed by the threaded sleeve 160 and the connecting sleeve 120.

[0049] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A ship propeller with detachable blades suitable for use in ice areas, characterized in that: The invention comprises a rotating shaft, one end of which is provided with a propeller hub, on which a plurality of propeller blades are detachably provided, and the plurality of propeller blades are distributed in a circumferential array, and a plurality of locking assemblies are slidably provided inside the propeller hub, and the plurality of locking assemblies correspond one-to-one to the propeller blades, and the locking assemblies can be slidably inserted into the locking propeller blades or separated and loosened along a first direction; support rings and support frames are arranged in parallel at intervals inside the propeller hub, and the directions in which the support rings and the support frames are arranged are perpendicular to the rotating shaft, and a plurality of first movement assemblies distributed in a circumferential direction are slidably provided on the side walls of the support ring, and the plurality of the first movement assemblies correspond one-to-one to the plurality of locking assemblies, and the first movement assemblies correspond one-to-one to the plurality of locking assemblies. A moving component can slide along a second direction, one end of the first moving component abuts against an end of the locking component away from the blade member, the first moving component can drive the locking component to move, a second moving component is arranged inside the hub, the compression end of the second moving component is arranged inside the support frame, the driving end of the second moving component is arranged in the middle of multiple first moving components, one end of the first moving component away from the locking component abuts against the driving end of the second moving component, the second moving component can move in the first direction, the second moving component can drive the first moving component to move, and the first direction and the second direction are perpendicular to each other.

2. A ship propeller with detachable blades suitable for use in ice areas according to claim 1, characterized in that: The blade component includes a blade body, a fixing seat and a fixing plate, the blade body is arranged on the fixing seat, the fixing plate is arranged on a side of the fixing seat away from the blade body, a plurality of slots are arranged at equal intervals on the side wall of the hub, the fixing seat is arranged on the side wall of the hub, the fixing plate is inserted into the slot, a fixing groove is arranged on the fixing plate, and the locking assembly can be inserted into or away from the fixing groove.

3. A ship propeller with detachable blades suitable for use in ice areas according to claim 2, characterized in that: The locking assembly includes a locking plug, a connecting rod, a locking spring and a locking rod, one end of the connecting rod is slidably arranged in a slide groove on the inner wall of the hub, the other end of the connecting rod is connected to the locking plug, both ends of the locking rod are arranged in the slide groove, the connecting rod is slidably inserted into the locking rod, the locking rod and the locking plug are parallel to each other, the locking spring is arranged on the locking rod, the slide groove is arranged along a first direction, the locking spring can push the locking rod away from the fixing plate in the initial state, the locking rod can drive the locking plug to be inserted into the slot of the fixing plate or separated from the slot away from the fixing plate, and the end of the locking plug away from the fixing plate rests on the first moving assembly.

4. A ship propeller with detachable blades suitable for use in ice areas according to claim 3, characterized in that: The support ring is an annular plate with a circular through hole in the middle. An annular groove is provided on the support ring. The first motion component is partially arranged in the annular groove, and the driving end of the second motion component is arranged in the circular through hole.

5. A ship propeller with detachable blades suitable for use in ice areas according to claim 4, characterized in that: The first motion component includes a sliding rod, which is arranged in an annular groove, a slider is slidably arranged on the side of the sliding rod close to the circular through hole, a compression spring is arranged on the side of the sliding rod away from the circular through hole, the slider is connected to the compression spring, and the compression spring pushes the slider away from the circular through hole in an initial state, a pushing block is connected to one side of the slider, one end of the pushing block abuts against the locking plug block, and the other end of the pushing block abuts against the driving end of the second motion component, and the slider can drive the pushing block to move axially along the sliding rod.

6. A ship propeller with detachable blades suitable for use in ice areas according to claim 5, characterized in that: The pushing block and the locking plug block are both trapezoidal structures, and a first inclined surface is provided on the side of the pushing block close to the locking plug block, and a second inclined surface is provided on the side of the locking plug block close to the pushing block, the directions and angles of the first inclined surface and the second inclined surface are consistent, and the first inclined surface and the second inclined surface are in contact with each other, and the locking plug block and the pushing block are spliced ​​into an L-shaped structure in the initial state, and a short rod is provided on the side of the pushing block close to the driving end of the second moving component, and a ball is provided on the side of the short rod away from the pushing block, and the ball abuts against the driving end of the second moving component.

7. A ship propeller with detachable blades suitable for use in ice areas according to claim 6, characterized in that: The driving end of the second motion component includes a connecting seat, and a polygonal boss is arranged on the side of the connecting seat away from the compression end of the second motion component, and a ball is abutted on each side wall of the polygonal boss. The compression end of the second motion component includes a guide cylinder, an extrusion spring, a guide rod, and a piston. The guide cylinder is arranged on the support seat, one end of the guide rod is connected to the side of the connecting seat away from the boss, and the other end of the guide rod is connected to the piston, and the extrusion spring is arranged on the guide rod.

8. A ship propeller with detachable blades suitable for use in ice areas according to claim 7, characterized in that: The support frame includes a support seat and multiple support rods, and the multiple support rods are circumferentially arranged on the side wall of the support seat. The guide rod is arranged inside the guide cylinder. Through hole 1 and through hole 2 are respectively arranged at both ends of the guide cylinder. One end of the guide rod passes through through hole 2 and is connected to the connecting seat. The outer ring of piston 1 is attached to the inner wall of the guide cylinder. The piston 1 is close to through hole 1. A connecting pipe is connected to the through hole 1. An electromagnetic valve is arranged on the connecting pipe, and the connecting pipe is connected to a compression assembly.

9. A ship propeller with detachable blades suitable for use in ice areas according to claim 8, characterized in that: The compression assembly includes a compression rod, a compression cylinder, and piston 2. The compression cylinder is connected to a connecting pipe. The piston 2 is slidably arranged in the compression cylinder. Hydraulic oil is arranged in the guide cylinder, the connecting pipe, and the compression cylinder between the piston 1 and the piston 2. One end of the compression rod away from the piston 2 passes through the slurry hub, and a pressing cover is arranged at the end of the compression rod away from the piston 2.

10. The ship propeller with detachable blades suitable for use in ice areas according to claim 1, characterized in that: The end sleeve of the rotating shaft away from the propeller hub is provided with a matching block, and the side wall of the matching block is provided with a plurality of protrusions distributed along the axial direction of the rotating shaft, the matching block is sleeved with a connecting sleeve, and a connecting groove is provided on the inner wall of the connecting sleeve, and the protrusion is slidably arranged in the connecting groove, and the end of the connecting sleeve away from the matching block is connected to the tail shaft, and the tail shaft is connected to the external driving mechanism, and a buffer cover with an open end is sleeved on the rotating shaft, and the open end of the buffer cover faces the tail shaft, and a threaded block is provided on the side of the buffer cover away from the propeller hub, and the threaded block is sleeved on the rotating shaft, and the side of the threaded block away from the buffer cover abuts against the protrusion of the matching block, and a threaded sleeve is threadedly connected to the threaded block, and the threaded sleeve is rotatably connected to the connecting sleeve, and a plurality of buffer holes are provided on the buffer cover.

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