阅读说明：本技术 回转控制机构、制动装置、吊舱推进器及船舶动力系统 (Rotation control mechanism, brake device, pod propeller and ship power system ) 是由 王睿男 段瑞春 裘富华 杨勇 刘大为 田中伟 于 2018-07-17 设计创作，主要内容包括：本发明涉及回转控制机构、回转制动装置、吊舱推进器及船舶动力系统。一种回转控制机构包括：一个制动轴、一个静摩擦片组件、一个动摩擦片组件、一个活塞环、一个弹簧。调节所述弹簧的压缩量,所述活塞环在所述弹簧的第一压力与所述液压控制组件产生的作用力的作用下运动,施加第二压力于所述静摩擦片组件,进一步向所述转动轴输入转动力矩,使得所述转动轴输出力矩随之调节。本发明实施例结构紧凑、成本低廉,能够减小船舶动力装置中回转动力装置驱动轴受到的冲击,避免由于瞬间载荷过大造成的损坏。(The invention relates to a rotation control mechanism, a rotation brake device, a pod propeller and a ship power system. A swing control mechanism comprising: the brake comprises a brake shaft, a static friction sheet component, a dynamic friction sheet component, a piston ring and a spring. And the piston ring moves under the action of the first pressure of the spring and the action force generated by the hydraulic control assembly, applies a second pressure to the static friction plate assembly, and further inputs a rotating torque to the rotating shaft, so that the output torque of the rotating shaft is adjusted accordingly. The embodiment of the invention has compact structure and low cost, can reduce the impact on the driving shaft of the rotary power device in the ship power device and avoid the damage caused by overlarge instantaneous load.)

1. A swing control mechanism, comprising:

a brake shaft (15) including a coupling end (151) and a drive end (152);

a static friction plate assembly (17) comprising at least two static friction plates (171, 172);

a dynamic friction plate assembly (18) comprising at least one dynamic friction plate (181), the at least one dynamic friction plate (181) being provided with a first connecting portion (1811) connecting the connecting ends (151); wherein at least two static friction plates (171, 172) of the static friction plate assembly (17) and at least one dynamic friction plate (181) of the dynamic friction plate assembly (18) are alternately arranged;

a piston ring (19) including first and second opposed end faces (191, 192), said first end face (191) abutting said static friction plate assembly (17);

a spring (20), one end of said spring (20) abutting against a second end face (192) of said piston ring (19);

wherein the spring (20) is adjustable, the piston ring (19) exerting a second pressure on the static friction plate assembly (17) depending on a first pressure exerted thereon by the spring (20); and the static friction plate assembly (17) and the dynamic friction plate assembly (18) output rotating torque to the brake shaft (15) under the action of the second pressure.

2. The swing control mechanism according to claim 1, comprising:

a hydraulic control assembly (21) which regulates the amount of compression of the spring (20).

3. The swing control mechanism according to claim 1, comprising:

an auxiliary electromagnetic circuit assembly (21a) that adjusts the amount of compression of the spring (20).

4. The swing control mechanism according to claim 1, wherein the first connecting portion (1811) is splined to the connecting end (151) of the brake shaft (15).

5. The swing control mechanism according to claim 1, further comprising:

a first cylinder (13) and a second cylinder (14);

wherein the second cylinder (14) is provided with a second connecting portion connected with the static friction plate (17); the brake shaft (15), the static friction sheet assembly (17), the dynamic friction sheet assembly (18), the piston ring (19) and the spring (20) are sequentially arranged in a cavity formed by the first cylinder body (13) and the second cylinder body (14).

6. The swing control mechanism according to claim 5, wherein the second connection portion of the second cylinder (14) is splined to the static friction plate assembly (17).

7. A rotation brake device, characterized by comprising the rotation control mechanism according to any one of claims 1 to 6, and a brake shaft external gear (10); wherein the content of the first and second substances,

the brake shaft external gear (10) is connected with the driving end (152) of the brake shaft (15).

8. A pod thruster, comprising: a strut (3), a propeller (4), a motor housing (6), a swivel unit (7) and at least one swivel power means (8), characterized in that the pod propeller further comprises a swivel brake means (9) according to claim 7.

9. The pod thruster of claim 8, wherein the brake shaft external gear (10) of the slewing braking device (9) is connected with a slewing bearing ring gear (12) of the slewing unit (7).

10. The pod thruster of claim 8, wherein the at least one slewing power device (8) is connected with a slewing bearing ring gear (12) of the slewing unit (7).

11. A marine vessel power system, comprising a swing control mechanism according to any one of claims 1 to 6; or, comprising a swing brake device according to claim 7; or, comprising a pod propeller as claimed in any of the claims 8 to 10.

Technical Field

The invention relates to the technical field of ship power, in particular to a rotation control mechanism, a braking device, a pod propeller and a ship power system.

Background

The marine power plant mainly includes: the rotary unit and the power unit. The power unit is fixed on the ship body and used for driving the power unit to rotate; the power unit is responsible for providing driving force.

However, under high loads or high boat speeds, conventional marine power plant swing units tend to be faced with insufficient torque to maintain the circumferential position of the locking power unit. In the steering process, for a ship provided with a pod type propeller, especially an engineering ship at a port, the steering performance is kept good, and 360-degree full-circle rotation is realized, which is very important.

In the process of ship navigation, when the ship encounters a complex weather condition, the rotation resistance moment of the power device is increased by water flow, and the power unit is braked only by the rotation power device, so that the requirement of the rotation braking moment cannot be met. When the turning radius and the moment of inertia are large, the instant impact load acting on the output shaft of the turning power device is increased due to insufficient braking torque of the turning power device, and the output shaft is damaged.

Currently, the circumferential position of the locking power unit is maintained mainly by using mechanical locking or adding an auxiliary swing drive to provide sufficient torque. However, the mechanical locking mode utilizes the hydraulic cylinder to push the pin shaft to lock the power unit and the rotary unit, so that the freedom and the randomness of the integral rotation of the pod propeller are limited, the pod propeller can only be locked in a certain specific circumferential direction, the requirement on the contact ratio of the positioning pin holes of the power unit and the rotary unit is high, and great inconvenience is brought to operators. And an auxiliary rotation driving device is added, so that the production cost is increased, a larger equipment installation space is occupied, and the equipment power is larger.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a rotation braking device, a pod propeller, and a ship power system, so as to solve the technical problem in the prior art that an output shaft of the rotation power device is damaged due to an excessive instantaneous load of the ship power system.

According to a first aspect of embodiments of the present invention, there is provided a swing control mechanism including:

a brake shaft including a connecting end and a driving end;

a static friction plate assembly including at least two static friction plates;

the movable friction plate assembly comprises at least one movable friction plate, and the at least one movable friction plate is provided with a first connecting part connected with the connecting end; at least two static friction plates of the static friction plate assembly and at least one dynamic friction plate of the dynamic friction plate assembly are alternately arranged;

the piston ring comprises a first end surface and a second end surface which are opposite, and the first end surface is abutted against the dynamic friction plate assembly;

a spring, one end of which abuts against the second end face of the piston ring;

wherein the spring is adjustable, and the piston ring applies a second pressure to the static friction plate assembly in accordance with a first pressure applied thereto by the spring; and the static friction plate assembly and the dynamic friction plate assembly output rotating torque to the brake shaft under the action of the second pressure.

In the embodiment of the invention, the number of the static friction plate assemblies and the number of the dynamic friction plate assemblies can be further adjusted according to the requirements of products on the friction braking performance, and the product design serialization of the static friction plate assemblies and the dynamic friction plate assemblies can be realized. Meanwhile, the static friction plates in the static friction plate assembly and the dynamic friction plates in the dynamic friction plate assembly are sequentially and alternately arranged, so that the rotating torque can be further input to the rotating shaft conveniently.

It is understood that the spring may take one of a variety of configurations, including, but not limited to, a leaf spring, a disc spring, and the like. And adjusting the spring, wherein the deformation of the spring generates a first pressure applied to the piston ring, the piston ring moves, and a second pressure is applied to the dynamic friction plate assembly.

Further, the swing control mechanism includes:

a hydraulic control assembly that adjusts an amount of compression of the spring.

In an embodiment of the invention, the swing control mechanism is provided with a hydraulic control assembly for adjusting the compression amount of the spring. The piston ring moves under the action of the first pressure of the spring and the acting force generated by the hydraulic control assembly, applies second pressure to the dynamic friction plate assembly, and further inputs rotation torque to the rotating shaft, so that the rotating shaft outputs torque. The acting force generated by the hydraulic control assembly can be adjusted by adjusting the oil pressure of hydraulic oil in the hydraulic control assembly.

Further, the swing control mechanism includes:

an auxiliary electrical circuit assembly that adjusts an amount of compression of the spring.

In an embodiment of the present invention, the rotation control mechanism is provided with an auxiliary electromagnetic circuit component for adjusting the compression amount of the spring. The piston ring moves under the action of the first pressure of the spring and the acting force generated by the auxiliary electromagnetic circuit component, applies second pressure to the movable friction plate component, and further inputs rotation torque to the rotating shaft, so that the rotating shaft outputs torque. The acting force generated by the auxiliary electromagnetic circuit component can be adjusted by adjusting the current, the voltage and other related technical parameters in the auxiliary electromagnetic circuit component.

Furthermore, the first connecting part is connected with the connecting end of the brake shaft through a spline.

In an embodiment of the invention, the first connecting part of at least one dynamic friction plate in the dynamic friction plate assembly is connected with the connecting end of the brake shaft through a spline. It can be understood that, the first connecting portion and the connecting end may be connected by the mating of the outer involute spline groove and the inner involute spline groove, or by the mating of the inner involute spline groove and the outer involute spline groove, and the specific connection form is not limited herein,

further, the swing control mechanism further includes: a first cylinder and a second cylinder;

the second cylinder body is provided with a second connecting part connected with the static friction plate; the brake shaft, the static friction sheet assembly, the dynamic friction sheet assembly, the piston ring and the spring are sequentially arranged in a cavity formed by the first cylinder body and the second cylinder body.

In the embodiment of the invention, the rotary control mechanism is provided with a first cylinder and a second cylinder, so that the arrangement of a brake shaft, a static friction sheet component, a dynamic friction sheet component, a piston ring and a spring in the rotary control mechanism is facilitated. Meanwhile, the first cylinder body and the second cylinder body further provide convenience for the arrangement of a hydraulic control assembly or an auxiliary electromagnetic circuit assembly.

Further, a spline connection is formed between the second connecting portion of the second cylinder and the static friction plate.

Likewise, in the embodiment of the present invention, the second connecting portion of the second cylinder and the static friction plate may be connected by the mating of the outer involute spline groove and the inner involute spline groove, or by the mating of the inner involute spline groove and the outer involute spline groove, and the specific connection form is not limited herein,

according to a second aspect of an embodiment of the present invention, there is provided a rotation brake device including the rotation control mechanism according to any one of the first aspect, and a brake shaft external gear. The brake shaft external gear is connected with the driving end of the brake shaft.

In the embodiment of the invention, the rotary braking device drives the external gear of the braking shaft through the braking shaft, so that the output of the output torque of the rotary braking device is facilitated.

According to a third aspect of embodiments of the present invention, there is provided a pod propeller including: a strut, a propeller, a motor housing, a rotary unit and at least one rotary power unit, the pod propeller further comprising a rotary brake device according to the second aspect.

In the embodiment of the invention, the pod propeller controls the output torque of the brake shaft by adjusting the rotary brake device, so that the instant impact of the output shaft of the rotary power device caused by insufficient brake torque of the rotary power device in the ship power device can be avoided, and the impact damage of the output shaft in the rotary power device is reduced.

Further, a brake shaft external gear of the slewing brake device is connected with a slewing bearing ring gear of the slewing unit.

Further, the at least one slewing power device is connected with a slewing bearing gear ring of the slewing unit.

In the embodiment of the invention, the brake shaft external gear of the rotary brake device is in meshing linkage with the rotary bearing gear ring of the rotary unit. In the process of rotation, the rotation braking device keeps a certain braking torque, so that gear teeth of a gear of the rotation power device are tightly pressed with a gear ring of a rotation bearing, and frequent collision between the gear teeth and gear teeth generated in the process of load change is avoided.

According to a fourth aspect of embodiments of the present invention there is provided a marine vessel power system comprising a slewing control mechanism as described in any one of the first-time aspects; or, comprising a swing brake device as described in the second aspect; or, a pod propeller as described in any of the third aspects.

As can be seen from the above solution, in the embodiment of the present invention, the rotation control mechanism includes: the brake comprises a brake shaft, a static friction sheet component, a dynamic friction sheet component, a piston ring and a spring. And the piston ring moves under the action of the first pressure of the spring and the action force generated by the hydraulic control assembly, applies a second pressure to the static friction plate assembly, and further inputs a rotating torque to the rotating shaft, so that the output torque of the rotating shaft is adjusted accordingly. The embodiment of the invention also provides a rotary braking device and a pod propeller. The embodiment of the invention has compact structure and low cost, can reduce the impact on the driving shaft of the rotary power device in the ship power device and avoid the damage caused by overlarge instantaneous load.

Drawings

The foregoing and other features and advantages of the invention will become more apparent to those skilled in the art to which the invention relates upon consideration of the following detailed description of a preferred embodiment of the invention with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a swing control mechanism in one embodiment of the present invention;

FIG. 2 is a schematic view of a swing brake apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of the application of a swing brake in one embodiment of the present invention;

FIG. 4 is a mechanical drive schematic of the application of a swing brake apparatus in one embodiment of the present invention;

FIG. 5 is a schematic illustration of a static friction plate of a swing brake apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a dynamic friction plate of a slewing braking device according to an embodiment of the invention;

FIG. 7 is a schematic view of a nacelle propeller in an embodiment of the invention;

FIG. 8 is a schematic view of a pod propeller installation in one embodiment of the present invention.

Wherein the reference numbers are as follows:

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.