Adjustable thrust bearing oil pipe support for marine diesel engine

The adjustable bracket and modular installation design solve the problems of assembly difficulties and welding loosening of fixed brackets, improving assembly efficiency and safety, and reducing manufacturing costs.

CN224497752UActive Publication Date: 2026-07-14HENGLI ENGINE (DALIAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENGLI ENGINE (DALIAN) CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing thrust bearing lubricating pipe support uses a fixed support, which leads to large dimensional deviations in the welded parts, making assembly difficult. Furthermore, long-term vibration can easily cause cracking, affecting assembly efficiency and safety.

Method used

The design employs a combination of adjustable brackets, U-shaped pipe clamps, self-locking nuts, and flange locking washers. This combination installation method replaces welding, increases the adjustable gap and support strength, and prevents loosening.

Benefits of technology

It improves assembly tolerance and efficiency, reduces manufacturing costs, enhances fastening effect, and avoids the risk of welding slag damaging the bearing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224497752U_ABST
    Figure CN224497752U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of adjustable thrust bearing lubricating oil pipe support applied to marine diesel engine, including adjustable support, U type pipe clamp, self-locking nut, hexagon bolt and flange locking gasket, the adjustable support is L type structure, is constituted by the first plate and second plate of bending connection;The U type pipe clamp sleeve is on oil pipe, and the two sides pipe of the open end of the U type pipe clamp are locked connection by self-locking nut and first plate respectively, a plurality of hexagon bolts are connected on the second plate, flange locking gasket is connected between the hexagon bolt and second plate.The utility model can effectively compensate the deviation caused by pipeline contraction after welding, reduce assembly construction difficulty, avoid the problem that assembly part is loose, effectively improve fastening effect and assembly efficiency, reduce manufacturing cost.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of bracket technology, and in particular to an adjustable thrust bearing lubricating pipe bracket for marine diesel engines. Background Technology

[0002] Currently, thrust bearing lubricating pipe supports use fixed supports, such as... Figure 1 As shown, an L-shaped flat steel bar is welded to the lubricating oil pipe body and then bolted to the inside of the main engine thrust bearing. Due to shrinkage after cooling, the welded parts exhibit significant dimensional deviations, frequently leading to assembly difficulties. Therefore, multiple refitting operations are often required during on-site construction, greatly reducing construction efficiency and assembly accuracy. Furthermore, significant vibrations occur near the thrust bearing during main engine operation. Due to welding stress at the weld joint, the support weld may crack after prolonged vibration, significantly reducing the support's stability. More seriously, weld slag falling onto the thrust bearing can scratch the bearing block, causing damage and resulting in high repair costs. Utility Model Content

[0003] To address the aforementioned technical problems, an adjustable thrust bearing lubrication pipe bracket for marine diesel engines is provided. This effectively avoids existing risks, improves assembly tolerance and convenience within limited construction space, and while ensuring a secure fastening effect, effectively improves the assembly accuracy and efficiency of the main engine. The technical means employed in this invention are as follows:

[0004] An adjustable thrust bearing lubricating pipe support for marine diesel engines includes: an adjustable support, a U-shaped pipe clamp, a self-locking nut, hexagonal bolts, and a flange locking washer. The adjustable support has an L-shaped structure, consisting of a first plate and a second plate connected by bending. The U-shaped pipe clamp is fitted onto the oil pipe, and the two sides of the open end of the U-shaped pipe clamp are respectively locked to the first plate by self-locking nuts. Multiple hexagonal bolts are connected to the second plate, and a flange locking washer is connected between the hexagonal bolts and the second plate.

[0005] Furthermore, the first plate has two first through holes, and the two tubes on both sides of the U-shaped tube clamp pass through the two first through holes respectively, and the protruding ends are connected with self-locking nuts.

[0006] Furthermore, the first through hole is an elongated hole.

[0007] Furthermore, at least one reinforcing rib is provided at the connection between the first plate and the second plate.

[0008] Furthermore, the second plate has multiple second through holes, and the hexagonal bolts are connected to the second through holes.

[0009] Furthermore, the second through hole is an elongated hole.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] The original design was a welding method, which required high welding precision and high assembly process. This utility model eliminates the process of welding the bracket to the pipe system body. By adding adjustable gaps in the vertical and front-back directions, it effectively compensates for the deviation caused by the shrinkage of the pipeline after welding, reduces the difficulty of assembly and construction. At the same time, the addition of self-locking nuts and flange locking washers avoids the problem of loosening of the components during long-term operation of the main unit, effectively improves the fastening effect and assembly efficiency, and reduces manufacturing costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the existing design.

[0014] Figure 2 This is a schematic diagram of the structure of the bracket of this utility model.

[0015] Figure 3 This is a partial structural schematic diagram of the bracket of this utility model.

[0016] In the diagram: 1. Adjustable bracket; 11. First through hole; 12. Reinforcing rib; 13. Second through hole; 2. U-shaped pipe clamp; 3. Self-locking nut; 4. Hex bolt; 5. Flange locking washer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figure 1 As shown, the original design used a welded bracket that was not adjustable and had no reinforcement design on the base plate, making construction inconvenient.

[0019] To address existing problems, this utility model provides an adjustable thrust bearing lubricating pipe bracket for marine diesel engines, relating to the assembly technology of lubricating pipe systems for thrust bearings of large marine two-stroke diesel engines. By designing an adjustable pipe clamp bracket, the lubricating pipe fastening effect is improved and the construction difficulty is reduced.

[0020] like Figure 2 As shown, this utility model discloses an adjustable thrust bearing lubrication pipe support for marine diesel engines, comprising: an adjustable support 1, a U-shaped pipe clamp 2, a self-locking nut 3, hexagonal bolts 4, and a flange locking washer 5. The adjustable support 1 has an L-shaped structure, consisting of a first plate and a second plate connected by bending. The U-shaped pipe clamp 2 is fitted onto the oil pipe, and the two sides of the open end of the U-shaped pipe clamp 2 are respectively locked to the first plate by the self-locking nuts 3. Multiple hexagonal bolts 4 are connected to the second plate, and flange locking washers 5 are connected between the hexagonal bolts 4 and the second plate.

[0021] The first plate has two first through holes 11. The two side tubes of the U-shaped tube clamp 2 pass through the two first through holes 11 respectively, and the protruding ends are connected to the self-locking nut 3. The first through hole 11 is an elongated hole.

[0022] At least one reinforcing rib 12 is provided at the connection between the first plate and the second plate.

[0023] The second plate has multiple second through holes 13, and hex bolts 4 are connected to the second through holes 13. The second through holes 13 are elongated holes.

[0024] To facilitate installation, an adjustable bracket 1 needs to be designed according to the layout of the main unit's lubrication pipes. This is achieved by adding a first elongated hole 11, a second elongated hole 13, and reinforcing ribs 12, thus enabling multi-directional adjustment and providing sufficient support strength. Figure 3 As shown.

[0025] This utility model changes the welded pipe clamp to a combined installation form. To prevent the installation parts from loosening and falling off during long-term operation, a self-locking nut 3 and a flange locking washer 5 are added.

[0026] During assembly:

[0027] 1) Assemble the main unit model using NX UG design software;

[0028] 2) Based on the layout of the main unit's lubricating oil pipes, design an adjustable bracket 1, select the diameter of the U-shaped pipe clamp 2, and determine the bracket material and mounting hole size, etc.

[0029] 3) Model and draw the utility model parts using NX UG design software;

[0030] 4) Ordering;

[0031] 5) Verify the assembly and operational effectiveness.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable thrust bearing lubrication pipe support for marine diesel engines, characterized in that, include: Adjustable bracket (1), U-shaped pipe clamp (2), self-locking nut (3), hex bolt (4) and flange locking washer (5). The adjustable bracket (1) is an L-shaped structure, consisting of a first plate and a second plate connected by bending. The U-shaped pipe clamp (2) is fitted onto the oil pipe, and the two sides of the opening end of the U-shaped pipe clamp (2) are respectively locked to the first plate by the self-locking nut (3). Multiple hex bolts (4) are connected to the second plate, and a flange locking washer (5) is connected between the hex bolts (4) and the second plate.

2. The adjustable thrust bearing lubricating pipe support for marine diesel engines according to claim 1, characterized in that, The first plate has two first through holes (11), and the two side tubes of the U-shaped tube clamp (2) pass through the two first through holes (11) respectively, and the protruding end is connected to the self-locking nut (3).

3. The adjustable thrust bearing lubricating pipe support for marine diesel engines according to claim 2, characterized in that, The first through hole (11) is an elongated hole.

4. The adjustable thrust bearing lubricating pipe support for marine diesel engines according to claim 1, characterized in that, At least one reinforcing rib (12) is provided at the connection between the first plate and the second plate.

5. The adjustable thrust bearing lubricating pipe support for marine diesel engines according to claim 1, characterized in that, The second plate has multiple second through holes (13), and the hexagonal bolts (4) are connected in the second through holes (13).

6. The adjustable thrust bearing lubricating pipe support for marine diesel engines according to claim 5, characterized in that, The second through hole (13) is an elongated hole.