Vibration isolator applied to aero-engine transportation

By designing a through-hole connection between the elastic rope and the two-layer fixed block structure in the aero-engine vibration isolator, the problem of uneven stiffness in the existing technology is solved, achieving multi-directional uniform load bearing and enhanced vibration reduction effect, and improving service life.

CN223575151UActive Publication Date: 2025-11-21GUIYANG CHANGZHILIN ENGINE PARTS MFG CO LTD
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Patent Information

Application Number
CN202423297541.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-11-21
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing aircraft engine vibration isolators have uneven stiffness when subjected to lateral vibrations and impacts, resulting in poor service life and vibration reduction effect.

Method used

A vibration isolator consisting of an upper fixed block and a lower fixed block was designed. The fixed blocks are provided with through holes and are connected by an elastic rope in a spiral to form a multi-directional uniform load. Two layers of fixed blocks are stacked and connected by fixing bolts. The elastic rope has joints at both ends to ensure uniform load-bearing at multiple angles.

Benefits of technology

It achieves uniform vibration stiffness and impact stiffness in multiple directions, enhances the service life and damping effect of the vibration isolator, and adapts to complex transportation environments.

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Abstract

The utility model relates to the technical field of air transportation, in particular to a vibration isolator applied to aero-engine transportation. Comprising an upper fixing block and a lower fixing block, the upper fixing block and the lower fixing block are arranged in parallel, a plurality of through holes with uniform distances are formed in the upper fixing block and the lower fixing block, and an elastic rope penetrating through the through holes is arranged between the upper fixing block and the lower fixing block. The elastic rope spirally penetrates through the through holes to be wound on the two fixing blocks, the upper fixing block and the lower fixing block are designed to be circular, the through holes are formed in the two fixing blocks, and the elastic rope penetrating through the through holes to be connected is arranged, so that it can be ensured that the vibration isolator has the effect of bearing force evenly in multiple directions; the problem that the vibration rigidity and the impact rigidity in the lateral direction are not equal is effectively solved, the service life of the vibration isolator is prolonged, and the damping effect generated when the vibration isolator is jolted in the transportation process is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to aviation transportation technical field, concretely relates to a vibration isolator for aero-engine transportation. BACKGROUND

[0002] The aero-engine can be transported by sea, land and air, but no matter which mode of transportation is adopted, the aero-engine cannot be separated from the vibration isolator and must take vibration isolation measures.

[0003] In the prior art, for example: China patent announcement No. CN217271601U discloses a steel wire rope vibration isolator, which comprises two clamping plates arranged in parallel and a steel wire rope clamped by the clamping plates, and the steel wire rope is spirally wound on the clamping plates, characterized in that: the end of the steel wire rope is welded with a rope head sleeve, and the rope head sleeve abuts against the clamping plate, so that the impact can be effectively isolated under the extrusion of external force.

[0004] However, the existing vibration isolator has a single bearing direction, and the lateral vibration stiffness and impact stiffness are uneven. In view of this, the vibration isolator for aero-engine transportation is proposed. UTILITY MODEL CONTENTS

[0005] The utility model discloses a vibration isolator for aero-engine transportation, which solves the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides a vibration isolator for aero-engine transportation, which comprises an upper fixed block and a lower fixed block, the upper fixed block and the lower fixed block are arranged in parallel, a plurality of through holes with uniform distance are arranged on the upper fixed block and the lower fixed block, an elastic rope is arranged between the upper fixed block and the lower fixed block and passes through the through holes, and the elastic rope is spirally wound on the two fixed blocks through the through holes.

[0007] As a further improvement of the technical solution, the upper fixed block and the lower fixed block are both formed by two layers of fixed blocks stacked, the two layers of fixed blocks are oppositely provided with threaded mounting holes, and the two layers of fixed blocks are fixedly connected by fixed bolts passing through the threaded mounting holes.

[0008] As a further improvement of the technical solution, the elastic rope is provided with a plurality of elastic ropes.

[0009] As a further improvement of the technical solution, an elastic rope joint is arranged at the head-to-tail connection of the elastic rope.

[0010] As a further improvement of the technical solution, the elastic rope is a steel wire rope.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The vibration isolator, the upper fixed block and the lower fixed block adopt a circular design, through the setting of through holes on the two fixed blocks and the elastic ropes connected through the through holes, can ensure that the vibration isolator has the effect of uniform force bearing in multiple directions, effectively solves the problem that the vibration stiffness and impact stiffness in the lateral direction are not equal, and enhances the service life of the vibration isolator and the damping effect generated when facing bumps in the transportation process. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a perspective view of the overall structure of the utility model;

[0014] Figure 2 It is a front view of the overall structure of the utility model;

[0015] Figure 3 It is a lower view of the overall structure of the utility model;

[0016] The meanings of various reference numerals in the drawings are as follows:

[0017] 1, upper fixed block; 2, lower fixed block; 3, through hole; 4, elastic rope; 5, threaded mounting hole; 6, fixed bolt; 7, elastic rope joint. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] In the description of the utility model, it should be understood that the positions or location relationships indicated by the terms "upper", "lower", "parallel" and the like are based on the positions or location relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0020] In addition, in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly and specifically limited.

[0021] Please refer to Figure 1 Figure 2As shown in the utility model provides a kind of vibration isolator applied to aeroengine transport, including upper fixed block 1 and lower fixed block 2, the upper fixed block 1 and the lower fixed block 2 are arranged in parallel, the upper fixed block 1 and the lower fixed block 2 are provided with multiple distance uniform through-hole 3, the upper fixed block 1 and lower fixed block 2 between are provided with elastic rope 4 passing through through-hole 3, the elastic rope 4 spiral passes through the through-hole 3 and is wound on the two fixed blocks, the upper fixed block and lower fixed block are all circular design, and parallel arrangement is carried out, and multiple through-holes are provided on the two fixed blocks, and elastic rope is wound by through-hole, to ensure that the vibration isolator can realize multidirectional, multi-angle uniform bearing effect.

[0022] Please refer to Figures 1-3 As shown in the utility model further, the upper fixed block 1 and the lower fixed block 2 are both two-layer fixed blocks, and the two-layer fixed blocks are oppositely provided with threaded mounting holes 5, and the two-layer fixed blocks are fixedly connected by fixing bolts 6 passing through the threaded mounting holes 5, by setting the upper fixed block and the lower fixed block as two-layer fixed blocks, the stability of the device can be enhanced, and the device is convenient to disassemble and install.

[0023] Please refer to Figures 1-3 As shown in the utility model further, the elastic rope 4 is provided with multiple elastic ropes, to enhance the bearing limit of the vibration isolator, and further, the elastic rope 4 is provided with elastic rope joints 7 at the head and tail connection positions of the elastic rope, to effectively fix the connection position of the elastic rope and avoid damage.

[0024] In summary, the working principle of the present application is as follows:

[0025] The upper and lower fixed blocks are provided, and the two fixed blocks are both two-layer fixed blocks, and are fixedly connected by fixing bolts, and the elastic rope is uniformly and spirally wound between the upper fixed block and the lower fixed block through the through-hole, and the head and tail of the elastic rope are connected by the elastic rope joint, to form a continuous and uniformly wound ring, so that the structure can bear vertical compression load, 45° compression load and lateral shear load, and the lateral vibration stiffness and impact stiffness are almost equal

[0026] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model, and are not intended to limit the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An isolator for use in the transport of an aeroengine, characterised in that: The utility model provides a kind of fixed block, including upper fixed block (1) and lower fixed block (2), the upper fixed block (1) and the lower fixed block (2) are arranged in parallel, a plurality of uniform distance through holes (3) are provided on the upper fixed block (1) and the lower fixed block (2), and the elastic rope (4) is arranged between the upper fixed block (1) and lower fixed block (2) and passes through through hole (3), and the elastic rope (4) is spirally wound on the two fixed blocks by passing through the through hole (3).

2. The vibration isolator for use in transporting an aeroengine according to claim 1, characterized in that: The upper fixed block (1) and the lower fixed block (2) are both two-layer fixed blocks, and the two-layer fixed blocks are oppositely provided with threaded mounting holes (5), and the two-layer fixed blocks are fixedly connected by fixed bolts (6) passing through the threaded mounting holes (5).

3. A vibration isolator for use in the transport of an aeroengine according to claim 2, characterised in that: The elastic rope (4) is provided with multiple elastic ropes.

4. The vibration isolator for use in transporting an aeroengine according to claim 1 or 3, characterized in that: The elastic rope (4) is provided with an elastic rope joint (7) at the head and tail connection.

5. A vibration isolator for use in the transport of an aeroengine according to claim 4, characterised in that: The elastic rope (4) is a steel wire rope.

Citation Information

Patent Citations

  • Steel wire rope vibration isolator

    CN217271601U