Pitch-adjustable full-revolving propeller

Abstract

The utility model belongs to the technical field of ships, and discloses a pitch-adjustable full-revolving propeller. The full-revolving propeller with the adjustable pitch comprises an upper box body assembly, a base, a steering assembly, a lower box body assembly, a controllable-pitch propeller, a pitch adjusting assembly and a pitch feedback device. The upper box body assembly is used for driving the lower box body assembly to move so as to drive the controllable-pitch propeller to rotate; the steering assembly is used for driving the lower box body assembly to rotate; the pitch adjusting assembly can move in the axial direction of the pitch adjusting assembly so as to adjust the pitch of blades of the controllable-pitch propeller. The screw pitch feedback device comprises a displacement detection piece and a signal transmission assembly, the displacement detection piece is arranged on the pitch adjusting assembly to detect displacement changes of the pitch adjusting assembly, the signal transmission assembly is arranged on the upper box assembly and provided with a rotating part, and the rotating part is electrically connected to the displacement detection piece to receive and transmit the displacement changes of the pitch adjusting assembly. Electric signal transmission can be adopted, transmission errors are eliminated, a mechanical transmission structure is omitted, the structure is compact, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to an adjustable pitch omni-rotation propeller. Background Art

[0002] The adjustable pitch azimuth thruster is an azimuth thruster with adjustable propeller pitch, in which the pitch feedback function is an essential and important function. Since the propeller shaft of the azimuth thruster is located in the lower box, and the lower box needs to rotate 360° around the vertical axis during the steering movement, in order to transmit the rotating pitch of the propeller blades to the stationary cabin, it is necessary to overcome the steering movement and eliminate the influence of the steering movement.

[0003] At present, the commonly used scheme is to use a mechanical mechanism to transmit the movement of the blades, such as a mechanical connecting rod mechanism or a flexible shaft. Since the pitch change of the propeller blades is achieved by the displacement of the oil pipe, the existing arrangement needs to collect the axial movement of the oil pipe at the front end of the propeller shaft, and then convert the axial movement of the oil pipe into a translational movement along the vertical axis through the mechanical transmission of the connecting rod or the flexible shaft and transmit it to the upper base, and finally output the translation through a linear displacement sensor; or convert the axial movement of the oil pipe into a rotational movement through the mechanical transmission of the crank connecting rod mechanism and transmit it to the upper base, and finally output it through an angle displacement sensor. The above two mechanical mechanism transmission forms have great limitations, such as complex structure, more parts, larger volume, motion errors, etc., which affect the accuracy and efficiency of the pitch detection and feedback structure. If electrical signal transmission is adopted, the cable and wire cannot transmit electrical signals with the steering movement.

[0004] Therefore, there is an urgent need for an adjustable pitch full-rotation propeller to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide an adjustable pitch full-rotation propeller, which can adopt electric signal transmission to eliminate transmission error and cancel the mechanical transmission structure, has compact structure and high reliability.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] An adjustable pitch azimuth propeller, comprising an upper housing assembly, a base, a steering assembly, a lower housing assembly, a pitch control propeller, a pitch control assembly and a pitch feedback device;

[0008] The output end of the upper box assembly is connected to the lower box assembly, the adjustable pitch propeller is transmission-connected to the lower box assembly, and the upper box assembly is used to drive the lower box assembly to move, so as to drive the adjustable pitch propeller to rotate;

[0009] The above-mentioned base is arranged at the bottom of the above-mentioned upper box body assembly and can be fixedly connected to the hull;

[0010] The above-mentioned rudder turning assembly is rotatably connected to the above-mentioned base and fixedly connected to the above-mentioned lower box body assembly to drive the above-mentioned lower box body assembly to rotate;

[0011] The above-mentioned pitch adjusting assembly is arranged in the above-mentioned lower box body assembly and connected to the root of the blade of the above-mentioned controllable pitch propeller. The above-mentioned pitch adjusting assembly can move along its own axis to adjust the pitch of the blade of the above-mentioned controllable pitch propeller;

[0012] The above-mentioned pitch feedback device includes a displacement detection member and a signal transmission component. The above-mentioned displacement detection member is arranged on the above-mentioned pitch adjusting assembly to detect the displacement change of the above-mentioned pitch adjusting assembly. The above-mentioned signal transmission component is arranged on the above-mentioned upper box body assembly. The above-mentioned signal transmission component has a rotating part, and the above-mentioned rotating part is electrically connected to the above-mentioned displacement detection member to receive and transmit the displacement change of the above-mentioned pitch adjusting assembly.

[0013] Optionally, the above-mentioned signal transmission component includes:

[0014] A static slip ring, the above-mentioned static slip ring is arranged on the above-mentioned upper box body assembly;

[0015] A dynamic slip ring, the above-mentioned dynamic slip ring is rotatably connected to the above-mentioned static slip ring to form the above-mentioned rotating part. The above-mentioned dynamic slip ring is electrically connected to the above-mentioned displacement detection member to receive and transmit the displacement change of the above-mentioned pitch adjusting assembly; and the above-mentioned static slip ring is electrically connected to the above-mentioned dynamic slip ring to receive and transmit the displacement change of the above-mentioned pitch adjusting assembly transmitted by the above-mentioned dynamic slip ring.

[0016] Optionally, the above-mentioned displacement detection member is a linear displacement sensor.

[0017] Optionally, the above-mentioned pitch feedback device further includes a signal collecting member, and the above-mentioned signal collecting member is electrically connected to the above-mentioned signal transmission component to collect and display the displacement change of the above-mentioned pitch adjusting assembly.

[0018] Optionally, the above-mentioned signal collecting member includes a display, and the above-mentioned display is used to display the displacement change of the above-mentioned pitch adjusting assembly.

[0019] Optionally, connecting cables are provided between the above-mentioned displacement detection member and the above-mentioned signal transmission component, and between the above-mentioned signal transmission component and the above-mentioned signal collecting member.

[0020] Optionally, the above-mentioned pitch adjusting assembly includes a driving oil pump, an oil cylinder, an oil pipe, a piston, a guide frame and a slider;

[0021] The above-mentioned oil cylinder is arranged on one side of the above-mentioned lower box assembly close to the above-mentioned controllable pitch propeller. The above-mentioned piston is movably arranged in the above-mentioned oil cylinder. The above-mentioned guide frame is arranged on the above-mentioned oil pipe. The above-mentioned driving oil pump is communicated with the above-mentioned oil pipe. The above-mentioned driving oil pump is used to supply hydraulic oil to drive the above-mentioned piston to move along the axial direction of the above-mentioned oil pipe and drive the above-mentioned guide frame to move along the axial direction of the above-mentioned oil pipe;

[0022] The above-mentioned slider is slidably connected to the above-mentioned guide frame, and the above-mentioned slider is connected to the root of the blade of the above-mentioned controllable pitch propeller; the above-mentioned slider can move with the movement of the above-mentioned guide frame to drive the blade of the above-mentioned controllable pitch propeller to adjust the pitch.

[0023] Optionally, a bearing is provided at one end of the above-mentioned oil pipe away from the above-mentioned piston. The outer ring of the above-mentioned bearing is slidably connected to the inner ring of the above-mentioned bearing along the axial direction of the above-mentioned oil pipe, and the above-mentioned displacement detection component is arranged on the outer ring of the above-mentioned bearing.

[0024] Optionally, a slewing bearing is provided between the above-mentioned steering component and the above-mentioned base so that the above-mentioned steering component is rotatably connected to the above-mentioned base.

[0025] Optionally, the above-mentioned lower box assembly includes a first bevel gear pair. The input end of the above-mentioned first bevel gear pair is drivingly connected to the above-mentioned upper box assembly, and the output end of the above-mentioned first bevel gear pair is drivingly connected to the above-mentioned controllable pitch propeller.

[0026] Advantages of the present utility model:

[0027] The present utility model provides an all-round rotatable controllable pitch propeller. The displacement change of the pitch adjustment component is directly detected at the pitch adjustment component through the displacement detection component to obtain the pitch of the blade of the controllable pitch propeller, and then the detection signal of the pitch of the blade of the controllable pitch propeller is transmitted through the signal transmission component for electrical signal transmission, eliminating the detection error during mechanical transmission detection, improving the detection accuracy of the pitch of the controllable pitch propeller, and canceling the mechanical transmission structure, simplifying the number of parts, improving the space utilization rate, and making the structure more compact. And the signal transmission component is provided with a rotating part, so that the rotating part can rotate with the displacement detection component in the lower box assembly, eliminating the rotation angle of the rudder angle on the electrical connection structure between the displacement detection component and the signal transmission component, improving the detection accuracy and reliability of the pitch feedback device, and making it more convenient for the all-round rotatable controllable pitch propeller to make corresponding adjustments according to the pitch change of the controllable pitch propeller. Description of the drawings

[0028] Figure 1 is a schematic structural diagram of an all-round rotatable controllable pitch propeller provided by a specific embodiment of the present utility model.

[0029] In the figure:

[0030] 110. Displacement detection component; 120. Signal transmission component; 130. Signal collection component; 140. Connection cable;

[0031] 200. Upper box body component; 300. Base; 400. Steering component;

[0032] 510. Lower box body; 521. Driving bevel gear; 522. Driven bevel gear;

[0033] 600. Controllable pitch propeller;

[0034] 710. Oil cylinder; 720. Oil pipe; 730. Piston; 740. Guide frame; 750. Slide block;

[0035] 800. Bearing; 900. Slewing bearing. Detailed implementation manner

[0036] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model rather than all structures are shown in the accompanying drawings.

[0037] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0039] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] This embodiment provides an adjustable pitch azimuth thruster, which uses an electrical signal transmission structure to detect, collect, and feedback information on the pitch change of the controllable pitch propeller 600.

[0041] Please refer to Figure 1 , specifically, the adjustable pitch azimuth thruster includes an upper box assembly 200, a base 300, a steering component 400, a lower box assembly, a controllable pitch propeller 600, and a pitch feedback device; wherein, the output end of the upper box assembly 200 is connected to the lower box assembly, the controllable pitch propeller 600 is drivingly connected to the lower box assembly, and the upper box assembly 200 is used to drive the lower box assembly to move so as to drive the controllable pitch propeller 600 to rotate; the base 300 is arranged at the bottom of the upper box assembly 200 and can be fixedly connected to the hull; the steering component 400 is rotatably connected to the base 300 and fixedly connected to the lower box assembly to drive the lower box assembly to rotate; the pitch adjustment component is arranged in the lower box assembly and connected to the root of the blade of the controllable pitch propeller 600, and the pitch adjustment component can move along its own axis to adjust the pitch of the blade of the controllable pitch propeller 600; the pitch feedback device includes a displacement detector 110 and a signal transmission component 120, the displacement detector 110 is arranged on the pitch adjustment component to detect the displacement change of the pitch adjustment component; the signal transmission component 120 is arranged in the upper box assembly 200, the signal transmission component 120 has a rotating part, and the rotating part is electrically connected to the displacement detector 110 to receive and transmit the displacement change of the pitch adjustment component.

[0042] The adjustable pitch full-rotation thruster can drive the pitch-adjustable propeller 600 to rotate through the upper box assembly 200 to achieve its propulsion function. At the same time, the lower box assembly is driven to rotate through the steering component 400 to achieve the full-rotation steering function. Moreover, the displacement change of the pitch-adjusting component is directly detected by the displacement detector 110 at the pitch-adjusting component to obtain the pitch of the blades of the pitch-adjustable propeller 600, and then the detection signal of the pitch of the blades of the pitch-adjustable propeller 600 is transmitted through the signal transmission component 120 for electrical signal transmission, eliminating the detection error during mechanical transmission detection, improving the detection accuracy of the pitch of the pitch-adjustable propeller 600, canceling the mechanical transmission structure, simplifying the number of components, improving the space utilization rate, and making the structure more compact. And the signal transmission component 120 is provided with a rotating part, so that the rotating part can be affected by the displacement detector 110 in the lower box assembly, eliminating the rotation of the steering angle on the electrical connection structure between the displacement detector 110 and the signal transmission component, improving the detection accuracy and reliability of the pitch feedback device, and making it more convenient for the adjustable pitch full-rotation thruster to make corresponding adjustments according to the pitch change of the pitch-adjustable propeller 600.

[0043] In some embodiments, a slewing bearing 900 is provided between the steering component 400 and the base 300 to rotatably connect the steering component 400 to the base 300.

[0044] It can be understood that the steering component 400 includes structures such as a slewing drive and a steering shaft, which are all commonly used structures in the art and will not be elaborated here.

[0045] In some embodiments, the lower box assembly includes a first bevel gear pair. The input end of the first bevel gear pair is drivingly connected to the upper box assembly 200, and the output end of the first bevel gear pair is drivingly connected to the pitch-adjustable propeller 600. After the power is input through the upper box assembly 200, the power is transmitted to the pitch-adjustable propeller 600 through the first bevel gear pair, and the rotation of the pitch-adjustable propeller 600 around its own axis can be realized.

[0046] Specifically, the lower box assembly includes a lower box 510 and a first bevel gear pair. The first bevel gear pair is arranged inside the lower box 510. The lower box 510 is fixedly connected to the steering component 400. The overall rotation of the lower box assembly around the vertical axis is realized through the steering component 400, and the lower box 510 is used to protect the various structures inside the lower box 510.

[0047] More specifically, the first bevel gear pair includes a driving bevel gear 521 and a driven bevel gear 522, which are perpendicular to each other to transmit the transmitted power of the upper box assembly 200 to the pitch-adjustable propeller 600.

[0048] In some embodiments, the upper box assembly 200 includes an upper box and a driving member. The upper box is arranged on the top of the base 300, and the driving member is arranged in the upper box. The output end of the driving member is connected to the input end of the first bevel gear pair to realize the driving of the first bevel gear pair.

[0049] Specifically, the driving member is vertically arranged in the upper box body, and the output end of the driving member is directly connected to the input end of the first bevel gear pair to realize the driving of the first bevel gear pair by the driving member; or the driving member is horizontally arranged in the upper box body, and the upper box body assembly 200 also includes a second bevel gear pair, and the output end of the driving member is connected to the input end of the second bevel gear pair, and the output end of the second bevel gear pair is transmission-connected to the input end of the first bevel gear pair to realize the driving of the first bevel gear pair by the driving member.

[0050] In some embodiments, the adjustable pitch azimuth propeller also includes a pitch adjustment component, which is arranged in the lower box assembly, and the pitch adjustment component includes a driving oil pump, a cylinder 710, an oil pipe 720, a piston 730, a guide frame 740 and a slider 750; wherein, the cylinder 710 is arranged on a side of the lower box assembly close to the adjustable pitch propeller 600, the piston 730 is movably arranged in the cylinder 710, the guide frame 740 is arranged on the oil pipe 720, the driving oil pump is connected to the oil pipe 720, and the driving oil pump is used to supply hydraulic oil to drive the piston 730 to move axially along the oil pipe 720, and drive the guide frame 740 to move axially along the oil pipe 720; the slider 750 is slidably connected to the guide frame 740, and the slider 750 is connected to the root of the blade of the adjustable pitch propeller 600; the slider 750 can move with the movement of the guide frame 740 to drive the blade of the adjustable pitch propeller 600 to adjust the pitch. When in use, the oil pump is driven to supply hydraulic oil to the oil cylinder 710 through the oil pipe 720, and then the piston 730 is pushed to move axially along the oil pipe 720 by the oil pressure. At this time, the guide frame 740 moves with the oil pipe 720 and drives the slider 750 to slide, thereby driving the rotation of the blades of the adjustable pitch propeller 600, thereby realizing the adjustment of the pitch of the adjustable pitch propeller 600.

[0051] Optionally, the oil pipe 720 is passed through the driven bevel gear 522 of the first bevel gear pair, that is, the oil pipe 720 is passed through the bevel gear connected to the controllable pitch propeller 600, so that the oil pipe 720 and the oil cylinder 710 can be connected.

[0052] Specifically, a sliding groove is opened along the radial direction of the outer periphery of the guide frame 740, and at least a portion of the slider 750 is slidably connected in the sliding groove. When the guide frame 740 moves along the axial direction of the oil pipe 720, the sliding groove moves along the axial direction of the oil pipe 720. At this time, the slider 750 is moved by the sliding groove and at least partially slides along the sliding groove, thereby driving the root of the blade to rotate to drive the blade.

[0053] More specifically, a disc pin is provided at the root of the blade. The disc pin is rotatably connected to the hub of the pitch-adjustable propeller 600, and a slider 750 is arranged on the disc pin to drive the disc pin to rotate.

[0054] Specifically, the piston 730 is reciprocatingly arranged in the oil cylinder 710 and divides the oil cylinder 710 into a first chamber and a second chamber. The oil pipe 720 has an inner oil chamber and an outer oil chamber, and the inner oil chamber and the outer oil chamber are respectively communicated with the first chamber and the second chamber. By transporting hydraulic oil to the first chamber or the second chamber, the movement direction of the piston 730 can be controlled to realize the reciprocating movement of the piston 730 along the axis of the oil pipe 720.

[0055] Specifically, a bearing 800 is provided at one end of the oil pipe 720 away from the piston 730. The outer ring of the bearing 800 is slidably connected to the inner ring of the bearing 800 along the axis of the oil pipe 720, and the displacement detection member 110 is arranged on the outer ring of the bearing 800. The setting of the bearing 800 eliminates the rotational movement of the oil pipe 720, enabling it to only transfer the axial movement of the oil pipe 720 to the displacement detection member 110, thereby improving the detection accuracy of the displacement detection member 110.

[0056] Optionally, the bearing 800 can be a sliding pair or a rolling pair including rollers, both of which can achieve the function of transferring the axial movement of the oil pipe 720 to the displacement detection member 110, and no specific limitation is made here.

[0057] In some embodiments, the displacement detection member 110 is a linear displacement sensor, and the detection of the pitch change of the pitch-adjustable propeller 600 can be realized by measuring the axial displacement of the oil pipe 720 along its own axis.

[0058] In some embodiments, the signal transmission component 120 is an electric slip ring structure, which can realize the transmission of electrical signals between a rotating structure and a stationary structure, eliminating the influence of the rudder angle on the connection cable 140 between the displacement detection member 110 and the signal transmission component.

[0059] Specifically, the signal transmission component 120 includes a stationary slip ring and a rotating slip ring. The stationary slip ring is arranged on the upper box body assembly 200; the rotating slip ring is rotatably connected to the stationary slip ring to form a rotating part. The rotating slip ring is electrically connected to the displacement detection member 110 to receive and transmit the displacement change of the pitch adjustment component; and the stationary slip ring is electrically connected to the rotating slip ring to receive and transmit the displacement change of the pitch adjustment component transmitted by the rotating slip ring. With this setting, during the use of the pitch feedback device, even if the displacement detection member 110 rotates with the lower box body assembly, the rotating slip ring will also rotate accordingly, so that the displacement detection member 110 and the signal transmission component are relatively stationary, and further the connection structure between the displacement detection member 110 and the signal transmission component will not be damaged, improving the reliability of the pitch feedback device.

[0060] In some embodiments, the pitch feedback device further includes a signal collector 130, which is electrically connected to the signal transmission component 120 to collect and display the displacement change of the pitch adjustment component. Specifically, the signal collector 130 is electrically connected to the static slip ring to receive the displacement change of the pitch adjustment component through the static slip ring, so as to collect and display the pitch change of the blades of the adjustable pitch propeller 600.

[0061] In some embodiments, the signal collector 130 includes a display, which is used to display the displacement change of the pitch adjustment component to display the pitch change of the adjustable pitch propeller 600, so as to facilitate the corresponding operator or the corresponding control device to make judgments and perform corresponding operations.

[0062] Optionally, connection cables 140 are provided between the displacement detector 110 and the signal transmission component 120, and between the signal transmission component 120 and the signal collector 130 to achieve electrical connection between the displacement detector 110 and the signal transmission component 120, and electrical connection between the signal transmission component 120 and the signal collector 130.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An adjustable pitch full-rotation thruster, characterized in that, It includes an upper box assembly (200), a base (300), a steering component (400), a lower box assembly, a controllable pitch propeller (600), a pitch adjustment component and a pitch feedback device; The output end of the upper box assembly (200) is connected to the lower box assembly, the controllable pitch propeller (600) is drivingly connected to the lower box assembly, and the upper box assembly (200) is used to drive the lower box assembly to move so as to drive the controllable pitch propeller (600) to rotate; The base (300) is arranged at the bottom of the upper box assembly (200) and can be fixedly connected to the hull; The steering component (400) is rotatably connected to the base (300) and fixedly connected to the lower box assembly to drive the lower box assembly to rotate; The pitch adjustment component is arranged inside the lower box assembly and is connected to the root of the blade of the controllable pitch propeller (600), and the pitch adjustment component can move along its own axis to adjust the pitch of the blade of the controllable pitch propeller (600); The pitch feedback device includes a displacement detection member (110) and a signal transmission component (120). The displacement detection member (110) is arranged on the pitch adjustment component to detect the displacement change of the pitch adjustment component. The signal transmission component (120) is arranged on the upper box assembly (200). The signal transmission component (120) has a rotating part, and the rotating part is electrically connected to the displacement detection member (110) to receive and transmit the displacement change of the pitch adjustment component.

2. The controllable pitch full-rotation thruster according to claim 1, wherein The signal transmission component (120) includes: A static slip ring, which is arranged on the upper box assembly (200); A dynamic slip ring, which is rotatably connected to the static slip ring to form the rotating part. The dynamic slip ring is electrically connected to the displacement detection member (110) to receive and transmit the displacement change of the pitch adjustment component; and the static slip ring is electrically connected to the dynamic slip ring to receive and transmit the displacement change of the pitch adjustment component transmitted by the dynamic slip ring.

3. The controllable pitch full-rotation thruster according to claim 1, characterized in that, The displacement detection member (110) is a linear displacement sensor.

4. The controllable pitch full-rotation thruster according to claim 1, characterized in that, The pitch feedback device further includes a signal collection member (130). The signal collection member (130) is electrically connected to the signal transmission component (120) to collect and display the displacement change of the pitch adjustment component.

5. The controllable pitch full-rotation thruster according to claim 4, characterized in that, The signal collection member (130) includes a display, and the display is used to display the displacement change of the pitch adjustment component.

6. The controllable pitch full-rotation propeller according to claim 4, characterized in that, Connection cables (140) are provided between the displacement detection member (110) and the signal transmission component (120), and between the signal transmission component (120) and the signal collection member (130).

7. The controllable pitch fully rotatable thruster according to claim 1, characterized in that, The pitch adjustment component includes a driving oil pump, an oil cylinder (710), an oil pipe (720), a piston (730), a guide frame (740) and a slider (750); The oil cylinder (710) is arranged on one side of the lower box body assembly close to the controllable pitch propeller (600). The piston (730) is movably arranged in the oil cylinder (710). The guide frame (740) is arranged on the oil pipe (720). The driving oil pump is communicated with the oil pipe (720). The driving oil pump is used to supply hydraulic oil to drive the piston (730) to move along the axial direction of the oil pipe (720) and drive the guide frame (740) to move along the axial direction of the oil pipe (720). The slider (750) is slidably connected to the guide frame (740). The slider (750) is connected to the root of the blade of the controllable pitch propeller (600). The slider (750) can move with the movement of the guide frame (740) to drive the blade of the controllable pitch propeller (600) to adjust the pitch.

8. The controllable pitch full-rotation thruster according to claim 7, characterized in that, One end of the oil pipe (720) away from the piston (730) is provided with a bearing (800). The outer ring of the bearing (800) is slidably connected to the inner ring of the bearing (800) along the axial direction of the oil pipe (720). The displacement detection member (110) is arranged on the outer ring of the bearing (800).

9. The controllable pitch full-rotation thruster according to claim 1, characterized in that, A slewing bearing (900) is arranged between the rudder turning assembly (400) and the base (300) so that the rudder turning assembly (400) is rotatably connected to the base (300).

10. The controllable pitch fully rotating thruster according to claim 1, characterized in that, The lower box body assembly includes a first bevel gear pair. The input end of the first bevel gear pair is drivingly connected to the upper box body assembly (200), and the output end of the first bevel gear pair is drivingly connected to the controllable pitch propeller (600).

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