CN215436856U

CN215436856U - Ring jacking device for mounting ship propeller

Info

Publication number: CN215436856U
Application number: CN202121671548.0U
Authority: CN
Inventors: 方志刚; 吴静; 丁德崇; 张良江; 吴腾
Original assignee: QINGDAO SHIPYARD CO Ltd
Current assignee: QINGDAO SHIPYARD CO Ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-07
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a ring top device for mounting ship propellers, which comprises: a hydraulic cylinder cover, a piston and a stop portion; the lower end of the hydraulic cylinder cover is provided with an oil inlet; the piston comprises a first cylinder and a second cylinder which are coaxially connected, and the diameter of the first cylinder is smaller than that of the second cylinder; the outer side wall of the second cylinder is in sliding contact with the inner side wall of the hydraulic cylinder cover, the outer side wall of the stopping portion is connected with the inner side wall of the hydraulic cylinder cover, and the inner side wall of the stopping portion is in sliding contact with the outer side wall of the first cylinder. The utility model provides a ring jacking device for mounting a ship propeller, which can provide larger bearing jacking acting force, is convenient to operate and saves time and labor.

Description

Ring jacking device for mounting ship propeller

Technical Field

The utility model belongs to the technical field of tools for ships, and particularly relates to a ring top device for mounting ship propellers.

Background

The propeller of the ship is a power device of the ship. The paddle is usually made of brass, the shape of the paddle is complex, the middle cylinder structure is large in weight, and the supporting point is small; when the ship propeller is installed, the weight of the propeller is heavy, the weight often reaches more than one hundred tons, the positioning precision requirement is high, the installation is limited by space, the installation cannot be assisted by a large crane, generally, in the installation process of the ship propeller, axial thrust needs to be provided for the propeller, a mounting tool with larger thrust is needed during installation, and generally small-sized hydraulic equipment cannot bear the pressure of about 100 Gpa.

In order to avoid the waste on a large amount of manpower, material resources and time that can not predict in order to make the installation of ship screw, research and develop a convenient to use, easy operation, a ship screw installation that can recycle is with ring top device to improve workman work efficiency, convenient to use, easy operation, safety, material saving is man-hour, guarantees the shipbuilding time limit for a project, has guaranteed the shipbuilding quality, is the technical problem who waits to solve urgently.

Disclosure of Invention

Aiming at the problems pointed out in the background technology, the utility model provides a ring jacking device for mounting a ship propeller, which can provide larger bearing jacking acting force, is convenient to operate and saves time and labor.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

a ring top device for mounting a ship propeller comprises: a hydraulic cylinder cover, a piston and a stop portion; the lower end of the hydraulic cylinder cover is provided with an oil inlet; the piston comprises a first cylinder and a second cylinder which are coaxially connected, and the diameter of the first cylinder is smaller than that of the second cylinder; the outer side wall of the second cylinder is in sliding contact with the inner side wall of the hydraulic cylinder cover, the outer side wall of the stopping portion is connected with the inner side wall of the hydraulic cylinder cover, and the inner side wall of the stopping portion is in sliding contact with the outer side wall of the first cylinder.

In some embodiments of this application, still include the elastic component, first recess has been seted up to the bottom of piston, the elastic component sets up in first recess, the top of elastic component with the piston is connected, the bottom of elastic component with hydraulic cylinder lid is connected.

In some embodiments of the application, the elastic part includes extension spring and extension spring core, the extension spring core includes first sub-extension spring core and second sub-extension spring core, first sub-extension spring core suit is in the extension spring with the upper end of extension spring is connected, second sub-extension spring core suit is in the extension spring with the lower extreme of extension spring is connected.

In some embodiments of this application, still include the sealing, it includes the sealing washer, second annular groove has been seted up on the lateral wall of second cylinder, the sealing washer is installed in the second annular groove, the sealing washer supports and leans on hydraulic cylinder lid internal surface.

In some embodiments of the present application, the sealing portion further includes a dust-proof component, one end of the dust-proof component is connected to the stopping portion, and the other end of the dust-proof component abuts against the outer side wall of the piston.

In some embodiments of this application, dustproof subassembly includes dustproof clamping ring, dust ring and first countersunk screw, the one end of dust ring is supported and is leaned on backstop portion, the other end of dust ring supports and leans on the lateral wall of piston, dustproof clamping ring is installed the upper surface of dust ring, dustproof clamping ring with dust ring coaxial coupling, countersunk screw will dustproof clamping ring is connected with dust ring on the backstop portion.

In some embodiments of the present application, a third annular sinking groove is formed in the upper surface of the stopping portion, and the dust-proof assembly is disposed in the third annular sinking groove.

In some embodiments of this application, the quantity of first countersunk screw is a plurality of, and is a plurality of first countersunk screw equipartition is in on the dustproof clamping ring.

In some embodiments of the present application, an external thread portion is disposed on an outer side wall of the stopping portion, and an internal thread portion is disposed on an inner side wall of the hydraulic cylinder head, and the external thread portion is in threaded connection with the internal thread portion.

In some embodiments of the present application, a top end of the elastic portion is connected to the piston by a second bolt, and a bottom end of the elastic portion is connected to the hydraulic cylinder head by a third bolt.

Compared with the prior art, the utility model has the advantages and positive effects that:

the piston is arranged in the hydraulic cylinder cover, and oil is input into the bottom end of the hydraulic cylinder cover, so that the hydraulic cylinder cover is jacked up under the action of the oil, upward thrust is applied to the ship propeller, and the effect of jacking the ship propeller is achieved; in order to limit the motion stroke of the piston, a stopping part is arranged between the hydraulic cylinder cover and the piston and used for limiting the movement of the piston and preventing the piston from falling off from the hydraulic cylinder cover. The ring top device for mounting the ship propeller is adopted to push and lift the ship propeller, so that a large amount of manpower and material resources can be saved, the working efficiency of workers is improved, the use is convenient, the operation is simple and safe, the material and time are saved, the construction period of the ship is ensured, and the construction quality of the ship is ensured.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

reference numerals:

100, a hydraulic cylinder cover; 110, an oil inlet;

200, a piston; 210, a first cylinder; 220, a second cylinder; 221, a second annular groove; 230, a first groove;

300, a stopper portion; 310, a third annular sink;

410, a seal ring; 420, a dust-proof assembly; 421, dustproof compression ring; 422, a dustproof ring; 423, a first countersunk screw;

500, an elastic portion; 510, a tension spring; 520, a tension spring core; 521, a first sub tension spring core; 522, a second sub tension spring core; 531, a second bolt; 532, third bolt.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the embodiment, as shown in fig. 1, hydraulic pressure is used as power to generate a large axial upward thrust, so that the ship propeller is jacked up for mounting the propeller. The hydraulic cylinder cover 100 with the oil inlet 110 formed in the lower end is arranged, the piston 200 is connected to the inside of the hydraulic cylinder cover 100 in a sliding mode, oil is input from the oil inlet 110, the piston 200 is jacked up, and the piston 200 exerts an axial upward thrust effect on the propeller.

In the present embodiment, as shown in fig. 1, a cavity is formed between the upper end of the piston 200 and the cylinder head 100, and a stopper 300 is disposed at the cavity, and the stopper 300 is used for preventing the piston 200 from sliding along the cylinder head 100.

In the present embodiment, as shown in fig. 1, the piston 200 includes a first cylinder 210 and a second cylinder 220, and the diameter of the first cylinder 210 is smaller than that of the second cylinder 220. The outer side wall of the second cylinder 220 slides relative to the inner side wall of the hydraulic cylinder head 100.

In the embodiment, as shown in fig. 1, the oil inlet 110 is opened at the bottom end of the hydraulic cylinder cover 100, the oil inlet 110 is located below the second cylinder 220, hydraulic oil flows in from the oil inlet 110, and the piston 100 is jacked up upwards, so that the purpose of jacking the propeller through the piston 100 is achieved.

In the present embodiment, as shown in fig. 1, in order to achieve sealing between the second cylinder 220 and the hydraulic cylinder head 100 and prevent leakage of hydraulic oil, a sealing portion is further provided. The sealing portion includes a sealing ring 410. A second annular groove 221 is formed in the outer side wall of the second cylinder 220, the sealing ring 410 is installed in the second annular groove 221, and the sealing ring 410 abuts against the inner side wall of the hydraulic cylinder cover 100, so that sealing between the hydraulic cylinder cover 100 and the second cylinder 220 is achieved.

In this embodiment, as shown in fig. 1, since the diameter of the first cylinder 210 is smaller than the diameter of the second cylinder 220, a cavity is formed between the first cylinder 210 and the cylinder head 100, and the piston 200 can slide in the cavity along the inner side wall of the cylinder head 100.

In the present embodiment, as shown in fig. 1, a stopper 300 is provided at an upper end of the cylinder head 100, and the stopper 300 is connected to an inner side wall of the cylinder head 100. The stopper 300 prevents the piston 200 from falling off when sliding along the cylinder head 100.

Specifically, as shown in fig. 1, the outer side wall of the stopper portion 300 is provided with an external thread portion, the inner side wall of the upper end of the hydraulic cylinder head 100 is provided with an internal thread portion, and the stopper portion 300 and the hydraulic cylinder head 100 are connected by the connection of the external thread portion and the internal thread portion.

In the present embodiment, as shown in fig. 1, the stopping portion 300 is an annular structure, and an inner sidewall of the stopping portion 300 is in sliding contact with an outer sidewall of the first cylinder 210.

In the present embodiment, as shown in fig. 1 and 2, in order to ensure the sealing performance between the stopping portion 300 and the first cylinder 210 and prevent external dust, impurities, and the like from entering into the sealing structure between the cylinder head 100 and the piston 200, the sealing portion further includes a dust-proof assembly 420, one end of the dust-proof assembly 420 is connected to the stopping portion 300, and the other end abuts against the first cylinder 210. When the first cylinder 210 slides relative to the stopper 300, it is in sliding contact with the dust-proof component 420.

Specifically, as shown in fig. 1 and 2, the dust-proof assembly 420 includes a dust-proof compression ring 421, a dust-proof ring 422, and a first countersunk screw 423. The dustproof press ring 421 and the dustproof ring 422 are both ring structures. One end of the dust ring 422 is placed on the stopping portion 300, the other end of the dust ring 422 abuts against the outer side wall of the first cylinder 210, the dustproof pressing ring 421 is pressed on the upper surface of the dust ring 422, the first countersunk screws 423 are uniformly distributed on the dustproof pressing ring 421, penetrate through the dustproof pressing ring 421 and the dust ring 422 and stretch into the stopping portion 300, and connection of the three is achieved.

Specifically, as shown in fig. 1 and 2, the dust ring 422 is made of rubber. Dustproof clamping ring 421 is made by the metal, and dustproof clamping ring can make the even distribution of the power that first countersunk screw 423 exerts on dust ring 422, when guaranteeing that dust ring 422 is not impaired, also makes the distribution of power more even, connects more reliable and more stable.

The ring top device for mounting the ship propeller has very limited operation space in the process of jacking the propeller, so the stroke space of the piston 200 is ensured as much as possible,

in the present embodiment, as shown in fig. 1 and fig. 2, in order to prevent the dust-proof assembly 420 from being higher than the first cylinder 210, thereby ensuring a lifting space of the first cylinder 210, a third annular sinking groove 310 is formed on the surface of the stopping portion 300, the dust-proof assembly 420 is disposed in the third annular sinking groove 310, and an inner ring of the third annular sinking groove 310 is unblanked, so that the dust-proof ring 422 can abut against the first cylinder 210.

In the present embodiment, as shown in fig. 1, in order to achieve the automatic retraction of the piston 200 after being lifted up by the hydraulic oil, an elastic part 500 is provided. The elastic part 500 is disposed in a first groove 230 formed at the lower end of the piston 200. The top end of the elastic part 500 is connected to the upper end of the piston 200, and the bottom end of the elastic part 500 is connected to the bottom end of the cylinder head 100.

In this embodiment, as shown in fig. 1, the elastic part 500 may adopt a structure of the tension spring 510 and a tension spring core 520, the tension spring core 520 includes a first sub tension spring core 521 and a second sub tension spring core 522, the first sub tension spring core 521 is connected to an upper end of the tension spring 510 and is disposed at a center of an upper end of the tension spring 510, and the second sub tension spring core 522 is connected to a lower end of the tension spring 510 and is disposed at a center of a lower end of the tension spring 510. The first sub tension spring core 521 is connected to the piston 200, and particularly can be connected to the top surface of the first groove; the second sub-tension spring core 522 is connected to the bottom end of the hydraulic cylinder cover 100, so that the elastic part is installed.

Specifically, as shown in fig. 1, the first sub tension spring core 521 is connected to the piston 200 by a second bolt 531, and the second sub tension spring core 522 is connected to the bottom end of the hydraulic cylinder head 100 by a third bolt 532.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A ship propeller installation is with ring top device which characterized in that includes:

the lower end of the hydraulic cylinder cover is provided with an oil inlet;

the piston comprises a first cylinder and a second cylinder which are coaxially connected, wherein the diameter of the first cylinder is smaller than that of the second cylinder;

a stopper portion;

the outer side wall of the second cylinder is in sliding contact with the inner side wall of the hydraulic cylinder cover, the outer side wall of the stopping portion is connected with the inner side wall of the hydraulic cylinder cover, and the inner side wall of the stopping portion is in sliding contact with the outer side wall of the first cylinder.

2. The ring top device for mounting the ship propeller as claimed in claim 1, further comprising an elastic part, wherein a first groove is formed in the bottom end of the piston, the elastic part is arranged in the first groove, the top end of the elastic part is connected with the piston, and the bottom end of the elastic part is connected with the hydraulic cylinder cover.

3. The ring top device for mounting the ship propeller as claimed in claim 2, wherein the elastic part comprises a tension spring and a tension spring core, the tension spring core comprises a first sub tension spring core and a second sub tension spring core, the first sub tension spring core is sleeved in the tension spring and connected with the upper end of the tension spring, and the second sub tension spring core is sleeved in the tension spring and connected with the lower end of the tension spring.

4. The ring top device for mounting the ship propeller as claimed in claim 1, further comprising a sealing part including a sealing ring, wherein a second annular groove is formed in a side wall of the second cylinder, the sealing ring is mounted in the second annular groove, and the sealing ring abuts against an inner surface of the hydraulic cylinder cover.

5. The marine propeller mounting ring top device of claim 4, wherein the sealing portion further comprises a dust-proof assembly, one end of the dust-proof assembly is connected to the stopping portion, and the other end of the dust-proof assembly abuts against an outer side wall of the piston.

6. The ring top device is used in installation of boats and ships screw of claim 5, characterized in that, dustproof subassembly includes dustproof clamping ring, dust ring and first countersunk screw, the one end of dust ring supports and leans on backstop portion, the other end of dust ring supports and leans on the lateral wall of piston, dustproof clamping ring is installed the upper surface of dust ring, dustproof clamping ring with dust ring coaxial coupling, countersunk screw will dustproof clamping ring and dust ring are connected on backstop portion.

7. The ring top device for mounting the ship propeller as claimed in claim 5, wherein a third annular sinking groove is formed on the upper surface of the stopper, and the dust-proof assembly is disposed in the third annular sinking groove.

8. The ring top device for mounting the ship propeller as claimed in claim 6, wherein the number of the first countersunk head screws is plural, and the plural first countersunk head screws are uniformly distributed on the dustproof pressure ring.

9. The ring top device for mounting a ship propeller as claimed in claim 1, wherein an external thread portion is provided on an outer side wall of the stopper portion, an internal thread portion is provided on an inner side wall of the hydraulic cylinder head, and the external thread portion is screwed with the internal thread portion.

10. The ring top device for mounting a ship propeller as claimed in claim 2,

the top end of the elastic part is connected with the piston through a second bolt, and the bottom end of the elastic part is connected with the hydraulic cylinder cover through a third bolt.