阅读说明：本技术 一种侧推装置对中的方法 (Centering method of side pushing device ) 是由 杨阳 陈列峰 何超平 何健 张正义 邝锦湖 汪品 于 2020-04-10 设计创作，主要内容包括：本发明公开了一种侧推装置对中的方法,加工制作一工装轴,通过工装轴代替中间轴对中,工装轴呈管状,内部中空,质量较轻,便于操作；传统对中过程中,中间轴上下端轴头活动难以固定,容易导致对中数据不准确,采用工装轴对中,上法兰和下法兰与轴体固定连接,便于工装轴整体的固定和定位；并且上法兰与电动机之间预留空间,安装百分表,根据百分表测量调整电动机的位置,能够提高对中精度,使电动机的安装位置满足要求,最后拆卸工装轴,将中间轴安装于螺旋桨装置和电动机之间,由于螺旋桨装置和电动机已固定,中间轴的安装精度能够得到保证,此发明用于船舶领域。(The invention discloses a centering method of a side-push device, which comprises the steps of processing and manufacturing a tool shaft, replacing an intermediate shaft for centering through the tool shaft, wherein the tool shaft is tubular, hollow in the interior, light in weight and convenient to operate; in the traditional centering process, the shaft heads at the upper end and the lower end of the intermediate shaft are difficult to move and fix, so that inaccurate centering data is easily caused, the tool shaft is adopted for centering, and the upper flange and the lower flange are fixedly connected with the shaft body, so that the whole tool shaft is conveniently fixed and positioned; and a space is reserved between the upper flange and the motor, a dial indicator is installed, the position of the motor is measured and adjusted according to the dial indicator, the centering precision can be improved, the installation position of the motor meets the requirement, finally, the tooling shaft is disassembled, and the intermediate shaft is installed between the propeller device and the motor.)

1. A method for centering a side thrust device is characterized by comprising the following steps:

s1, processing a tool shaft, wherein the tool shaft comprises a shaft body, an upper flange and a lower flange, the upper flange and the lower flange are fixedly connected with two ends of the shaft body respectively, and the shaft body is tubular;

s2, installing and positioning a propeller device part;

s3, fixedly connecting the tool shaft with the propeller device, wherein a lower flange of the tool shaft is connected with a side thrust shaft end flange of the propeller device;

s4, primarily installing a motor above the tool shaft, and reserving a space between the motor and the tool shaft;

s5, mounting a dial indicator on an upper flange of the tool shaft, manually rotating a power shaft end flange of the motor, and detecting the relative position of the power shaft end flange and the upper flange through the dial indicator, wherein the relative position comprises the detection of the end surface and the outer circular surface of the power shaft end flange, and the height, the front position, the rear position, the left position and the right position of the motor are continuously adjusted, so that the reading of the dial indicator meets the requirement of centering of the intermediate shaft;

s6, fixing the position of the motor;

and S7, disassembling the dial indicator and the tooling shaft, and installing the intermediate shaft.

2. The method of centering a side thrust device of claim 1, wherein: the theoretical length of the middle shaft is L, the height of a reserved space between the motor and the tool shaft is h, and the length of the machined tool shaft is L-h.

3. The method of centering a side thrust device of claim 2, wherein: the height h of the reserved space is 95-105 mm.

4. The method of centering a side thrust device of claim 1, wherein: and (S1) processing the tool shaft, wherein the verticality tolerance of the shaft body taking the lower end face of the upper flange as a reference is 0.01-0.03 mm, and the verticality tolerance of the shaft body taking the upper end face of the lower flange as a reference is 0.01-0.03 mm.

5. The method of centering a side thrust device of claim 1 or 4, wherein: and (S1) processing the tool shaft, wherein the circle run-out tolerance of the outer circular surface of the upper flange by taking the central axis of the shaft body as a reference is 0.03-0.05 mm.

6. The method of centering a side thrust device of claim 1, wherein: and (3) in the step S1, machining the tool shaft, wherein the minimum roughness of the upper end face of the upper flange is required to be 3.2 mu m, and the minimum roughness of the lower end face of the lower flange is required to be 3.2 mu m.

7. The method of centering a side thrust device of claim 1, wherein: the outer diameter sizes of the lower flange and the side thrust shaft end flange of the propeller device are consistent, and the outer diameter sizes of the upper flange and the power shaft end flange of the motor are consistent.

8. The method of centering a side thrust device of claim 1, wherein: in the step S1, the shaft body is made of a steel pipe, mounting holes are formed in the upper flange and the lower flange, and the upper flange and the lower flange are respectively welded to two ends of the shaft body.

Technical Field

The invention relates to the field of ships, in particular to a method for centering a side thrust device.

Background

The side-push device is a device for assisting the steering of the ship, aims to improve the maneuverability and mainly meets the requirements of low-speed navigation and approaching and leaving a wharf. When the ship sails at a low speed, the rudder effect is reduced, and the operation is difficult. Therefore, in a ship which needs to sail at a low speed, keeps good maneuverability and has a large wind area and can conveniently lean against a wharf without a tugboat, a side pushing device is generally arranged, for example: (1) large ships which need to pass through narrow water channels and enter and exit crowded ports; (2) large container ships, passenger ships and ferries (the wind area above the waterline is large); (3) ships that need low-speed sailing operations, such as a supply ship, an investigation ship, an inspection ship, a cable laying ship, a navigation ship, and the like, operate at sea.

Referring to fig. 1, the lateral thrust device mainly comprises a motor 100, a vertical transmission device and a propeller device 200, wherein the vertical transmission device adopts an intermediate shaft 300, the upper part of the intermediate shaft 300 is connected with the shaft end of the motor 100, and the lower part of the intermediate shaft 300 is connected with the lateral thrust shaft end of the upper part of the propeller device 200, so as to form a vertical transmission shaft system. The motor rotates to drive the propeller device to rotate through the intermediate shaft, thrust is generated, and steering of the propeller is achieved. The current process of installing the side pushing device comprises the following steps: firstly, positioning and mounting a bottom side-push cylinder and a propeller device, centering and mounting a shafting from bottom to top by taking the bottom as a reference after mounting, adjusting a motor according to centering requirements, determining the final position, processing a mounting base plate or a seat frame of the motor, mounting the motor and an intermediate shaft, and finishing mounting.

In the above centering process, since the side pushing intermediate shaft adopts a structural form that the upper and lower end shaft heads of the intermediate shaft are movable relative to the shaft, the two end shaft heads are connected with the shaft body in a universal manner, and the intermediate shaft is heavy, it is difficult to adjust and operate the centering by directly using the intermediate shaft, and it is difficult to fix the position of the shaft head shaft sleeve, which also causes difficulty in determining the opening and offset value of the side pushing bottom shaft head flange and the upper motor shaft head flange, thereby making it difficult to adjust the installation position of the motor. Therefore, the centering method has the problems of complex centering process, complex operation, inaccurate centering data and the like.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art, and provides a centering method of a side pushing device, which can improve centering precision and is convenient to operate.

According to an embodiment of the invention, a method for centering a side thrust device is provided, which includes the following steps:

s1, processing a tool shaft, wherein the tool shaft comprises a shaft body, an upper flange and a lower flange, the upper flange and the lower flange are fixedly connected with two ends of the shaft body respectively, and the shaft body is tubular;

s2, installing and positioning a propeller device part;

s3, fixedly connecting the tool shaft with the propeller device, wherein a lower flange of the tool shaft is connected with a side thrust shaft end flange of the propeller device;

s4, primarily installing a motor above the tool shaft, and reserving a space between the motor and the tool shaft;

s5, mounting a dial indicator on an upper flange of the tool shaft, manually rotating a power shaft end flange of the motor, and detecting the relative position of the power shaft end flange and the upper flange through the dial indicator, wherein the relative position comprises the detection of the end surface and the outer circular surface of the power shaft end flange, and the height, the front position, the rear position, the left position and the right position of the motor are continuously adjusted, so that the reading of the dial indicator meets the requirement of centering of the intermediate shaft;

s6, fixing the position of the motor;

and S7, disassembling the dial indicator and the tooling shaft, and installing the intermediate shaft.

According to the method for centering the side thrust device, the theoretical length of the intermediate shaft is L, the height of a reserved space between the motor and the tool shaft is h, and the length of the machined tool shaft is L-h.

According to the centering method of the side pushing device, the height h of the reserved space is 95-105 mm.

According to the centering method of the side pushing device, in the step S1, the shaft is machined, the verticality tolerance of the shaft body taking the lower end face of the upper flange as a reference is 0.01-0.03 mm, and the verticality tolerance of the shaft body taking the upper end face of the lower flange as a reference is 0.01-0.03 mm.

According to the method for centering the side thrust device, in the step S1, the tooling shaft is processed, and the circle run-out tolerance of the outer circular surface of the upper flange with the central axis of the shaft body as the reference is 0.03-0.05 mm.

According to the method for centering the side thrust device, in the step S1 of processing the tool shaft, the minimum roughness requirement of the upper end face of the upper flange is 3.2 μm, and the minimum roughness requirement of the lower end face of the lower flange is 3.2 μm.

According to the method for centering the side thrust device, the outer diameter sizes of the lower flange and the side thrust shaft end flange of the propeller device are consistent, and the outer diameter sizes of the upper flange and the power shaft end flange of the motor are consistent.

According to the method for centering the side thrust device, in the step S1, the shaft body is made of a steel pipe, mounting holes are formed in the upper flange and the lower flange, and the upper flange and the lower flange are respectively connected with two ends of the shaft body in a welding mode.

Has the advantages that: the centering method of the side pushing device comprises the steps of processing and manufacturing the tool shaft, replacing an intermediate shaft for centering through the tool shaft, wherein the tool shaft is tubular, hollow in the interior, light in weight and convenient to operate; in the traditional centering process, the shaft heads at the upper end and the lower end of the intermediate shaft are difficult to move and fix, so that inaccurate centering data is easily caused, the tool shaft is adopted for centering, and the upper flange and the lower flange are fixedly connected with the shaft body, so that the whole tool shaft is conveniently fixed and positioned; and a space is reserved between the upper flange and the motor, a dial indicator is installed, the position of the motor is measured and adjusted according to the dial indicator, the centering precision can be improved, the installation position of the motor meets the requirement, the tooling shaft is finally disassembled, and the intermediate shaft is installed between the propeller device and the motor.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of a side pushing device;

FIG. 2 is a schematic structural view of a tool axis alignment used in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a tooling shaft according to an embodiment of the present invention;

reference numerals: the device comprises a tool shaft 10, a shaft body 11, an upper flange 12, a lower flange 13, a propeller device 20, a side thrust shaft end flange 21, a motor 30, a power shaft end flange 31, a dial indicator 40 and a reserved space 50.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.