Ship tail shaft alloy bearing

Abstract

The utility model discloses a ship tail shaft alloy bearing, which comprises a bearing assembly, a bearing sleeve, an outer bearing sleeve and an inner bearing sleeve, the assembly convenient to disassemble and assemble comprises a rotating shaft, a through hole, a placing groove, a spring and a buckle; an inner ring of the outer bearing sleeve is movably connected with an inner bearing sleeve, a rotating shaft is fixedly installed at the top end in the outer bearing sleeve, a through hole is formed in the middle of the inner bearing sleeve in a penetrating mode, the rotating shaft movably penetrates through the through hole in a penetrating mode, placing grooves are formed in the two sides of the top end of the rotating shaft, and the end faces of the placing grooves are fixedly connected with one ends of springs; and the other end of the spring is fixedly connected with a buckle. Under the cooperation of the spring, the follow-up dismounting of the inner bearing sleeve is facilitated, so that maintenance can be carried out when a fault occurs, the problem that only the alloy bearing can be directly replaced is avoided, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ship components, in particular to an alloy bearing for a ship tail shaft. Background Art

[0002] The ship's tail shaft is the last section of the shaft system. The head flange and the intermediate shaft flange are connected with tight-fitting bolts. The tail end is conical and is used to install the propeller. The ship's tail shaft alloy bearing is a key component of the ship's propulsion system. Common alloy bearing materials include white metal (Babbitt metal). These alloys have suitable hardness, toughness and anti-friction properties.

[0003] In existing ship tail shaft alloy bearings, the inner bearing sleeve is usually directly fixedly installed in the outer bearing sleeve to prevent the inner bearing sleeve from detaching from the outer bearing sleeve. However, this connection method makes it difficult to disassemble in the event of a subsequent failure, and a new alloy bearing can only be replaced, which increases production costs. Utility Model Content

[0004] The purpose of the present utility model is to provide an alloy bearing for a ship's tail shaft, so as to solve the problem raised in the above-mentioned background technology, that in the existing alloy bearings for ship's tail shaft, the inner bearing sleeve is usually directly fixedly installed in the outer bearing sleeve to prevent the inner bearing sleeve from being separated from the outer bearing sleeve. However, this connection method makes it inconvenient to disassemble in the event of a subsequent failure, and a new alloy bearing can only be replaced, thereby increasing the production cost.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is an alloy bearing for a ship's tail shaft, comprising:

[0007] A bearing assembly, the bearing assembly comprising an outer bearing sleeve and an inner bearing sleeve;

[0008] A convenient disassembly and assembly component, comprising a rotating shaft, a through hole, a placement slot, a spring, and a buckle;

[0009] The inner ring of the outer bearing sleeve is movably connected to the inner bearing sleeve, and the rotating shaft is fixedly installed on the top end of the outer bearing sleeve. A through hole is formed in the middle of the inner bearing sleeve, and the rotating shaft movably passes through the through hole. Placement grooves are formed on both sides of the top end of the rotating shaft, and the end face of the placement groove is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the buckle.

[0010] Furthermore, the top end of the rotating shaft protrudes from the top end of the inner bearing sleeve.

[0011] Furthermore, the diameter of the placement groove is larger than the diameter of the spring, and the tail end of the buckle is in an arc shape.

[0012] Further, it also includes a lubrication component;

[0013] The lubrication assembly includes an oil groove;

[0014] An oil groove is provided inside the outer bearing sleeve, and the entire cross-sectional area of ​​the oil groove is circular.

[0015] Furthermore, the lubrication assembly further includes an oil filling hole and an oil outlet hole;

[0016] An oil filling hole is provided on the outer wall of the outer bearing sleeve, and an oil outlet hole is provided on the inner wall of the outer bearing sleeve. There are four oil outlet holes in total and they are arranged equidistantly on the inner wall of the outer bearing sleeve. The oil groove, the oil filling hole and the oil outlet hole are connected.

[0017] Furthermore, the lubrication assembly further includes a rubber stopper;

[0018] A rubber plug is movably inserted into the middle of the oil filling hole.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The utility model is provided with a rotating shaft, which can initially connect the outer bearing sleeve and the inner bearing sleeve, and then the spring and the buckle are connected in the placement groove opened on the top of the rotating shaft. The distance between the buckles at both ends is greater than the diameter of the through hole opened on the top of the inner bearing sleeve, so that the connection between the inner bearing sleeve and the outer bearing sleeve can be achieved. At the same time, with the cooperation of the spring, it is convenient to subsequently disassemble the inner bearing sleeve, so that it can be repaired in the event of a fault, avoiding the problem of having to directly replace the alloy bearing, thereby reducing production costs.

[0021] Based on the above beneficial effects, an oil filling hole is opened on the outer wall of the outer bearing sleeve, and four oil outlet holes are opened on the inner wall of the outer bearing sleeve. Lubricating oil is injected into the oil filling hole, and then the lubricating oil flows through the oil groove to the four oil outlet holes, so that the lubricating oil is evenly distributed, thereby making the lubrication of the inner bearing sleeve more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is an overall schematic diagram of the utility model;

[0024] Figure 2 A schematic diagram of the through hole of the utility model;

[0025] Figure 3This is a schematic diagram of the buckle connection of the utility model;

[0026] Figure 4 This is an internal cross-sectional view of the outer bearing sleeve of the present invention;

[0027] Figure 5 This is a schematic diagram of the oil filling hole and the oil outlet hole of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 101. Outer bearing sleeve; 102. Inner bearing sleeve;

[0030] 201, rotating shaft; 202, through hole; 203, placement slot; 204, spring; 205, buckle;

[0031] 301, oil tank; 302, oil filling hole; 303, oil outlet hole; 304, rubber plug. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1-5 As shown, this embodiment is an alloy bearing for a ship tail shaft, comprising:

[0036] The bearing assembly includes an outer bearing sleeve 101 and an inner bearing sleeve 102;

[0037] Convenient disassembly and assembly components, which include a rotating shaft 201, a through hole 202, a placement slot 203, a spring 204, and a buckle 205;

[0038] The inner ring of the outer bearing sleeve 101 is movably connected to the inner bearing sleeve 102. The top of the outer bearing sleeve 101 is fixedly installed with a rotating shaft 201. A through hole 202 is defined in the middle of the inner bearing sleeve 102. The rotating shaft 201 movably passes through the through hole 202. Placement grooves 203 are defined on both sides of the top of the rotating shaft 201. The end surface of the placement groove 203 is fixedly connected to one end of a spring 204. The other end of the spring 204 is fixedly connected to a buckle 205.

[0039] The rotation shaft 201 cooperates with the through hole 202 to achieve a preliminary connection between the outer bearing sleeve 101 and the inner bearing sleeve 102. The placement groove 203 provides space for the installation of the spring 204 and the buckle 205.

[0040] The top end of the rotating shaft 201 protrudes from the top end of the inner bearing sleeve 102;

[0041] The position setting of the above components can ensure that the buckle 205 limits the inner bearing sleeve 102;

[0042] The diameter of the placement slot 203 is larger than the diameter of the spring 204, and the tail end of the buckle 205 is in an arc shape;

[0043] The size of the placement slot 203 and the spring 204 can ensure smooth expansion and contraction of the spring 204 in the placement slot 203, and the shape of the buckle 205 can facilitate subsequent disassembly.

[0044] Working principle: Insert the inner bearing sleeve 102 into the outer bearing sleeve 101 so that the rotating shaft 201 is aligned with the through hole 202. When the inner wall of the through hole 202 contacts the buckle 205, the buckle 205 transmits the external force to the spring 204. At this time, the spring 204 is compressed until the buckles 205 at both ends completely protrude from the through hole 202. At this time, the spring 204 is restored, and the connection between the inner bearing sleeve 102 and the outer bearing sleeve 101 is completed. When the inner bearing sleeve 102 and the outer bearing sleeve 101 need to be disassembled, press the buckles 205 at both ends. At this time, the spring 204 is compressed, and then the inner bearing sleeve 102 is pulled upward to achieve the disassembly of the inner bearing sleeve 102.

[0045] This step facilitates the subsequent disassembly of the inner bearing sleeve, thereby enabling repairs when a failure occurs, avoiding the problem of having to directly replace the alloy bearing, and reducing production costs.

[0046] See also Figure 1-5 As shown, this embodiment is based on the above embodiment 1 and further includes a lubrication component;

[0047] The lubrication assembly includes an oil groove 301;

[0048] An oil groove 301 is formed inside the outer bearing sleeve 101, and the overall cross-sectional area of ​​the oil groove 301 is circular;

[0049] The oil tank 301 is provided to receive and discharge lubricating oil.

[0050] The lubrication assembly further includes an oil filling hole 302 and an oil outlet hole 303;

[0051] An oil filling hole 302 is formed on the outer wall of the outer bearing sleeve 101, and an oil outlet hole 303 is formed on the inner wall of the outer bearing sleeve 101. There are four oil outlet holes 303 in total, and they are evenly spaced on the inner wall of the outer bearing sleeve 101. The oil groove 301, the oil filling hole 302 and the oil outlet hole 303 are connected;

[0052] The provision of the oil filling hole 302 provides a guarantee for injecting lubricating oil into the oil groove 301. The four oil outlet holes 303 are evenly spaced, so that the lubricating oil can be evenly distributed on the outer wall of the inner bearing sleeve 102.

[0053] The lubrication assembly also includes a rubber plug 304;

[0054] A rubber plug 304 is movably inserted into the middle of the oil filling hole 302;

[0055] The rubber plug 304 can seal the oil filling hole 302 to prevent external water from entering the outer bearing sleeve 101 and causing corrosion to the outer bearing sleeve 101 and the inner bearing sleeve 102;

[0056] Working principle: Remove the rubber plug 304 and inject the lubricating oil into the oil tank 301 through the oil filling hole 302. The lubricating oil is then discharged through the four oil outlet holes 303 and flows into the inner wall of the outer bearing sleeve 101. Finally, it is evenly distributed to the outer wall of the inner bearing sleeve 102 during the rotation process.

[0057] In this step, the lubricating oil flows through the oil groove to the four oil outlet holes, so that the lubricating oil is evenly distributed, thereby making the lubrication of the inner bearing sleeve more uniform.

[0058] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0059] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A ship tail shaft alloy bearing, characterized in that: include: A bearing assembly, the bearing assembly comprising an outer bearing sleeve (101) and an inner bearing sleeve (102); A convenient disassembly and assembly component, the convenient disassembly and assembly component comprising a rotating shaft (201), a through hole (202), a placement slot (203), a spring (204) and a buckle (205); The inner ring of the outer bearing sleeve (101) is movably connected to the inner bearing sleeve (102); the rotating shaft (201) is fixedly installed at the top end of the outer bearing sleeve (101); a through hole (202) is provided in the middle of the inner bearing sleeve (102); the rotating shaft (201) is movably inserted into the through hole (202); placement grooves (203) are provided on both sides of the top end of the rotating shaft (201); the end surface of the placement groove (203) is fixedly connected to one end of a spring (204); and the other end of the spring (204) is fixedly connected to a buckle (205).

2. A ship tail shaft alloy bearing according to claim 1, characterized in that: The top end of the rotating shaft (201) protrudes from the top end of the inner bearing sleeve (102).

3. A ship tail shaft alloy bearing according to claim 1, characterized in that: The diameter of the placement groove (203) is larger than the diameter of the spring (204), and the tail end of the buckle (205) is in an arc shape.

4. The alloy bearing for a ship tail shaft according to claim 1, characterized in that: Also included is a lubrication assembly; The lubrication assembly includes an oil groove (301); An oil groove (301) is provided inside the outer bearing sleeve (101), and the entire cross-sectional area of ​​the oil groove (301) is circular.

5. A ship tail shaft alloy bearing according to claim 4, characterized in that: The lubrication assembly further comprises an oil filling hole (302) and an oil outlet hole (303); An oil filling hole (302) is provided on the outer wall of the outer bearing sleeve (101), and an oil outlet hole (303) is provided on the inner wall of the outer bearing sleeve (101). There are four oil outlet holes (303) in total, which are arranged at equal intervals on the inner wall of the outer bearing sleeve (101). The oil groove (301), the oil filling hole (302), and the oil outlet hole (303) are connected.

6. A ship tail shaft alloy bearing according to claim 5, characterized in that: The lubrication assembly further includes a rubber plug (304); A rubber plug (304) is movably inserted into the middle of the oil filling hole (302).

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