CN212243766U

CN212243766U - Marine propeller dismounting device

Info

Publication number: CN212243766U
Application number: CN202020537964.0U
Authority: CN
Inventors: 吴子江; 李德智; 汤涛
Original assignee: China Ship Development and Design Centre
Current assignee: China Ship Development and Design Centre
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-12-29
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a marine screw dismounting device, including being used for installing screw propeller hub one side and rather than can dismantling the body of being connected, wear to locate the screw on the body and install the end on the screw lies in the inside terminal surface of body, wherein, the end can be dismantled with the screw and be connected, and the screw passes through threaded connection with the body, and the terminal surface and the tail shaft terminal surface laminating of end rotate the screw and make drive power transmit the tail shaft terminal surface through the contact terminal surface of end to separation tail shaft and screw propeller hub. The utility model provides a marine screw dismounting device, its structural design is simple, and the atress is even during the operation, and the job site of being convenient for swiftly operates.

Description

Marine propeller dismounting device

Technical Field

The utility model relates to a boats and ships power propeller shaft system designs technical field, especially relates to a marine screw dismounting device.

Background

The ship propeller is usually connected with a tail shaft through a propeller hub, the propeller hub is generally designed to be in a conical structure, and the large end of the propeller hub is connected with the tail shaft and a flow guide cover through bolts and gaskets. The small end of the propeller hub is connected with the hub cap through bolts and gaskets. In most cases, the propeller hub and the stern shaft of the propeller are in interference fit, and the propeller is time-consuming and labor-consuming to disassemble when equipment is maintained.

In the prior art, hydraulic oil is injected into an oil hole of a propeller hub, and the propeller hub is disassembled in a mode of expanding a conical hole of the propeller hub, so that the mode has high requirements on operator operation and equipment precision, a stern shaft and the like are damaged due to unskilled operation, the disassembly period is long, and the propeller hub is not easy to manage and is not quick to operate.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a marine propeller dismounting device, which aims at facilitating the dismounting of the propeller hub and the tail shaft.

In order to achieve the above object, the utility model provides a marine screw dismounting device, including being used for installing screw propeller hub one side and rather than can dismantling the body of being connected, wear to locate the screw on the body and install the end on the screw lies in the inside terminal surface of body, wherein, the end can be dismantled with the screw and be connected, and the screw passes through threaded connection with the body, and the terminal surface and the laminating of tail shaft terminal surface of end rotate the screw and make drive power transmit the tail shaft terminal surface through the contact surface of end for separation tail shaft and screw propeller hub.

Preferably, a mounting hole is formed in one side of the body, an internal thread is formed in the through hole, and the screw penetrates through the mounting hole.

Preferably, the end of the body facing away from the screw is externally threaded for connection with a propeller hub.

Preferably, the screw and the head are fixed by a steel wire.

Preferably, the end head is provided with a through hole for a steel wire to pass through.

Preferably, the end head comprises an end plate and a cylindrical sleeve fixed on one side of the end plate, the sleeve is sleeved on the end portion of the screw, the through hole is formed in the sleeve, and the axis of the through hole is perpendicular to the axis of the sleeve.

Preferably, the body includes the barrel and is fixed in the supporting seat of barrel one side, and the inside cavity of barrel sets up in order to hold end and tailshaft, is equipped with the mounting hole on the supporting seat.

Preferably, the barrel deviates from one of supporting seat and serves and be equipped with the external screw thread, barrel and supporting seat welded connection.

Preferably, the axis of the mounting hole is arranged flush with the axis of the barrel.

Preferably, the end face size of end plate is greater than tail-shaft end face area, still is equipped with the sled hole on the body for torque wrench inserts.

The utility model provides a marine screw dismounting device has following beneficial effect:

1) small size and light weight. The size of the device is smaller than that of the dismounting devices of the same type, and the whole weight of the device is small due to the small size, so that excessive overall resources are not occupied;

2) the stress is uniform. The device uniformly applies the disassembly driving force on the end surface of the tail shaft through the threads and the end heads, ensures the stability and reliability of the whole disassembly process, is convenient for quick operation on a construction site, and avoids the damage of overlarge disassembly force to the tail shaft;

3) simple structure and low manufacturing cost. The device has simpler structure and parts on the premise of ensuring the basic disassembly function, thus leading the operation to be safer and more reliable and ensuring the safety and reliability of people and machines in the disassembly process. The device has the advantages of relatively simple structure, relatively fewer parts, low requirement on operators, low manufacturing and processing cost and contribution to popularization and application.

Drawings

Fig. 1 is a schematic structural view of the marine propeller dismounting device of the present invention;

3 FIG. 3 2 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3. 3

In the figure, 1-body, 2-screw, 3-end, 4-wire, 5-propeller hub, 6-tail shaft.

The dimensions are marked in the figure: d is the diameter of the tail end face of the tail shaft, the value of D is determined according to the shaft diameter of the tail shaft, and other dimensions are related to D, such as: d +20 indicates that there is 20mm more dimension than D.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do 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. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 and 2, in the preferred embodiment, a marine propeller dismounting device includes a body 1 for being mounted on one side of a propeller hub 5 and detachably connected therewith, a screw 2 penetrating through the body 1, and an end 3 mounted on an inner end surface of the body 1 of the screw 2, wherein the end 3 is detachably connected with the screw 2, the screw 2 is connected with the body 1 through a thread, an end surface of the end 3 is attached to an end surface of a tail shaft 6, and the screw 2 is rotated to transmit driving force to the end surface of the tail shaft 6 through a contact end surface of the end 3 so as to separate the tail shaft 6 from the propeller hub 5. The head of the screw 2 is located outside the body 1.

Specifically, a mounting hole is formed in one side of the body 1, an internal thread is arranged on the through hole, and the screw 2 penetrates through the mounting hole. The end of the body 1 facing away from the screw 2 is provided with an external thread for connection with a propeller hub 5.

Referring to fig. 1 and 2, a screw 2 and a head 3 are fixed by a steel wire 4. The end head 3 is provided with a through hole for the steel wire 4 to pass through.

The present embodiment proposes a specific structure of a header 3: the end 3 comprises an end plate and a cylindrical sleeve fixed on one side of the end plate, the sleeve is sleeved on the end part of the screw 2, the through hole is positioned on the sleeve, and the axis of the through hole is perpendicular to the axis of the sleeve.

Specifically, body 1 includes the barrel and is fixed in the supporting seat of barrel one side, and the inside cavity of barrel sets up in order to hold end 3 and tailshaft 6, is equipped with the mounting hole on the supporting seat. One of the end of the barrel, which deviates from the supporting seat, is provided with an external thread, and the barrel is connected with the supporting seat in a welding manner. The end face and the external thread design of the cylinder body connected with the body 1 and the propeller hub 5 are carried out according to the size of the propeller hub, so that the body 1 is tightly attached to the end face of the propeller hub.

In addition, the axis of mounting hole and the axis parallel and level of barrel set up. The size of the end face of the end plate is larger than the area of the end face of the tail shaft 6, so that the end face of the tail shaft 6 is stressed uniformly and stably, and the tail shaft 6 is separated from the propeller hub slowly.

Furthermore, the body 1 is also provided with a prying hole (the prying hole is positioned on the cylinder body) for inserting a torque wrench. If the disassembly is more laborious, auxiliary tools such as a torque wrench and the like can be used for increasing the driving force through the prying hole on the body 1.

Before using, end 3 is connected with screw 2 through steel wire 4, and steel wire 4 passes the hole on the end 3, fixes end 3 at the 2 tail ends of screw, and the terminal surface of end 3 and the 6 terminal surface laminating of tail-shaft, screw 2 are connected with body 1 through the screw, and body 1 is connected with screw propeller hub 5 through the screw again.

When using, at first with this marine screw dismounting device's screw 2 through screw thread screw in body 1 front end, be connected to screw 2 tail end with end 3 through steel wire 4, again with body 1 through screw thread screw in screw propeller hub 5 tail end, then, utilize torque wrench screw in screw 2, make the drive power that is used in on screw 2 transmit for the 6 terminal surfaces of tailshaft through the contact terminal surface on the end 3, if harder, auxiliary tool such as can also use torque wrench increases drive power through the sled hole on the body 1, make tailshaft 6 and screw propeller hub 5 separation through the drive power that produces, thereby accomplish the dismantlement work of screw.

The marine propeller dismounting device provided by the embodiment has the following beneficial effects:

2) the stress is uniform. The device uniformly applies the disassembly driving force on the end surface of the tail shaft 6 through the threads and the end head 3, ensures the stability and reliability of the whole disassembly process, is convenient for quick operation on a construction site, and avoids the damage to the tail shaft 6 caused by overlarge disassembly force;

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a marine screw dismounting device, its characterized in that, including being used for installing in screw propeller hub one side and rather than can dismantling the body of being connected, wear to locate the screw on the body and install the end on the screw lies in the inside terminal surface of body, wherein, the end can be dismantled with the screw and be connected, and the screw passes through threaded connection with the body, and the terminal surface and the laminating of tail shaft terminal surface of end rotate the screw and make drive power transmit for the tail shaft terminal surface through the contact terminal surface of end to separation tail shaft and screw propeller hub.

2. The marine propeller dismounting device as recited in claim 1, wherein a mounting hole is formed at one side of the body, an internal thread is formed on the through hole, and a screw is inserted into the mounting hole.

3. A marine propeller disassembly apparatus as claimed in claim 1, wherein the end of the body facing away from the screw is externally threaded for connection to a propeller hub.

4. A marine propeller disassembly apparatus as claimed in claim 1, wherein the screw and the tip are secured by a steel wire.

5. A propeller disassembly apparatus for ships as set forth in claim 4, wherein said tip is provided with a through hole for passing a steel wire therethrough.

6. A propeller disassembly apparatus for ships as recited in claim 1, wherein the tip comprises an end plate and a cylindrical sleeve fixed to one side of the end plate, the sleeve is fitted over an end portion of the screw, the through hole is provided in the sleeve, and an axis of the through hole is perpendicular to an axis of the sleeve.

7. The marine propeller removing apparatus as set forth in claim 2, wherein the body includes a cylinder and a support base fixed to one side of the cylinder, the cylinder being hollow to receive the tip and the tail shaft, the support base being provided with a mounting hole.

8. A propeller dismounting device for a ship as claimed in claim 7, wherein an external thread is provided on an end of the cylinder facing away from the support base, and the cylinder and the support base are welded together.

9. A marine propeller disassembly apparatus as claimed in claim 7, wherein the axis of the mounting hole is disposed flush with the axis of the barrel.

10. A propeller dismounting device for a ship as claimed in claim 6, wherein the end plate has an end face size larger than the area of the end face of the tail shaft, and the body is further provided with a prying hole for inserting a torque wrench.