CN113346418B

CN113346418B - Self-adaptive cable abrasion-proof device

Info

Publication number: CN113346418B
Application number: CN202110508458.8A
Authority: CN
Inventors: 陈凯; 王乾; 金亮; 马寅魏
Original assignee: Beijing Aerospace Technology Institute
Current assignee: Beijing Aerospace Technology Institute
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-10-18
Anticipated expiration: 2041-05-11
Also published as: CN113346418A

Abstract

The invention discloses a self-adaptive cable abrasion-proof device, which consists of two identical split protection bodies (1), wherein each split protection body (1) is of a horn-shaped structure, and corners are subjected to chamfering treatment; the smaller diameter ends of the two split protection bodies (1) are close to each other, and the protected cable is wrapped in the middle; the self-adaptive elastic sheet (2) is arranged in the split protection body (1), and the self-adaptive elastic sheet (2) is an elastic metal sheet and can adapt to cables with different diameters; during the installation, compress tightly self-adaptation shell fragment (2) on the cable, during the dismantlement, self-adaptation shell fragment (2) resets under the spring action for its and cable separation, the cable can deviate from smoothly. The device can adapt to cable structures with different diameters, has good universality, has the functions of high temperature resistance and vibration resistance, and can be applied to various cable protection occasions.

Description

Self-adaptive cable abrasion-proof device

Technical Field

The invention relates to an anti-abrasion device, in particular to an anti-abrasion device for a cabin-penetrating through hole part of an aircraft or ground equipment cable.

Background

The cabin body of the aircraft or the ground equipment has a large number of control cables or power supply cables, the large number of cables sometimes need to penetrate through the whole or partial cabin body structure, and the cabin body is spliced by adopting a segmented structure for the preparation of the structure or other functional requirements, so that a large number of cable cabin penetrating holes exist. Cables need to be run through these holes to other cabin locations. However, vibration or motor overload of the cabin (or the body) cannot be avoided in most cases during operation of the aircraft or the ground equipment, which results in a risk of abrasion at the cable through hole, and the abrasion results in loss of control of the equipment and loss of power supply capacity, which is extremely fatal for the aircraft or the ground equipment. Therefore, there is a need to create a simple and effective method to eliminate the risk points where a large number of cable penetrations may cause wear.

Disclosure of Invention

The invention provides a cable abrasion-proof device which has high temperature resistance and vibration resistance and can be applied to various cable protection occasions.

A self-adaptive cable abrasion-proof device is composed of two identical split protection bodies 1, wherein each split protection body 1 is of a horn-shaped structure, and corners are subjected to chamfering treatment; the two split protective bodies 1 are in threaded connection at the end with the smaller diameter, and the protected cable is wrapped in the middle; the self-adaptive elastic sheet 2 is arranged in the split protective body 1, and the self-adaptive elastic sheet 2 is an elastic sheet and can adapt to cables with different diameters; during the installation, compress tightly self-adaptation shell fragment 2 on the cable, during the dismantlement, self-adaptation shell fragment 2 resets under the elasticity effect for it separates with the cable, and the cable can deviate from smoothly.

Furthermore, a sliding limiting groove 7 is formed in the split protective body 1, sliding limiting rods are arranged at two ends of the self-adaptive elastic sheet and comprise rod bodies and rod heads, the rod bodies are fixed on the split protective body 1, and the diameters of the rod heads are larger than the width of the limiting groove.

Further, the outer part of the smaller diameter end of the split protection body 1 is provided with threads, and a screw lock hoop 3 with threads on the inner surface is installed on the split protection body; when the spiral lock hoop 3 rotates, the self-adaptive elastic sheet is tightly pressed on the cable through the elastic sheet mandril 4; one end of the elastic sheet ejector rod 4 is of a threaded structure, the other end of the elastic sheet ejector rod is of a smooth round head, a long circular groove is formed in the middle of the ejector rod, and a rotating shaft is inserted in the middle of the long circular groove, so that the elastic sheet ejector rod can rotate around the rotating shaft; the internal thread of the spiral lock hoop 3 is matched with the thread at the top of the elastic sheet mandril 4, and the smooth round head is contacted with the self-adaptive elastic sheet 2.

Furthermore, a circle of helical teeth is arranged on the side face of the helical lock hoop 3, the anti-loosening stop rod 5 is tightly pressed on the helical teeth on one side of the helical lock hoop 3 through the reset spring 6, in the process of tightly pressing the self-adaptive elastic sheet 2, the helical lock hoop 3 is rotated, the anti-loosening stop rod 5 slides through the inclined plane of the helical teeth, and when the self-adaptive elastic sheet 2 is rotated to a state of tightly pressing a cable, the anti-loosening stop rod 5 prevents the lock hoop from reversely rotating.

The protected cable is wrapped in the middle through the split protection body structure, and then the self-adaptive elastic sheet is tightly pressed by the spiral lock hoop so as to be tightly attached to the protected cable. The device can adapt to cable structures with different diameters, has good universality, has the functions of high temperature resistance and vibration resistance, and can be applied to various cable protection occasions.

Drawings

FIG. 1: the invention discloses a front view of an embodiment of a cable abrasion-proof device;

FIG. 2 is a schematic diagram: the embodiment of the cable abrasion-proof device is in a sectional view;

FIG. 3: the invention discloses a three-dimensional drawing of an external structure of an embodiment of a cable abrasion-proof device;

FIG. 4 is a schematic view of: the internal structure of the embodiment of the cable abrasion-proof device is a three-dimensional diagram;

wherein:

1. a precession type split protection body; 2. a self-adaptive spring plate; 3. a spiral locking collar; 4. a spring plate ejector rod; 5. an anti-loosening stop lever; 6. a return spring; 7. a sliding limit groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, in an embodiment of the device for preventing abrasion of a cable according to the present invention, a screw-in type split protective body 1 structure is adopted to coat a protected cable in the middle of a cable cabin-through hole, a spiral locking hoop 3 rotates a spring ejector rod 4 in a rotation process, the spring ejector rod 4 is a long rod member with a long circular groove and a thread at one end, the spring ejector rod 4 presses an adaptive spring 2 in the split protection 1 onto the cable along with the rotation of the spring ejector rod, the adaptive spring 2 can adapt to cables with different diameters, and after the adaptive spring 2 is pressed in place, the spiral locking hoop 3 with inclined teeth is fixed through a locking stop rod 5 to prevent the spring from being separated in a vibration environment. When the device is disassembled, the reset 6 spring is pressed to lift the anti-loosening stop rod 5, the spiral lock hoop 3 rotates reversely to drive the elastic piece ejector rod 4 to rotate, and the self-adaptive elastic piece 2 resets under the action of elastic force, so that the self-adaptive elastic piece is separated from the cable, and the cable can be smoothly separated. The whole device can reliably and effectively protect the cable at the via hole position from being damaged and ensure the normal work of the cable.

The material body of precession formula components of a whole that can function independently protection body 1 has the tubaeform structure of abrasionproof, the protection effect of preventing colliding with, and its corner is handled through the chamfer, and the material can be metal or nonmetal, specifically can decide according to the application scene, and the less end of diameter has the screw thread.

The self-adaptive elastic sheet 2 is made of an elastic metal sheet structure, limiting rods are arranged at two ends of the self-adaptive elastic sheet, and the limiting rods can slide in the long circular grooves of the split type protective bodies.

The inner surface of the spiral lock hoop 3 is provided with threads, the side surface of the spiral lock hoop 3 is provided with a circle of helical teeth, and the internal threads of the spiral lock hoop 3 are matched with the threads at the top of the elastic sheet ejector rod 4.

One end of the elastic sheet ejector rod 4 is of a threaded structure, the other end of the elastic sheet ejector rod is of a smooth round head, a long round groove is formed in the middle of the ejector rod, and a rotating shaft is inserted in the middle of the long round groove, so that the elastic sheet ejector rod 4 can rotate around the rotating shaft;

the anti-loosening stop rod 6 is tightly pressed on the helical teeth on one side of the helical lock hoop 3 through the reset spring 6, the helical lock hoop 3 is rotated in the process of tightly pressing the self-adaptive elastic sheet 2, the anti-loosening stop rod 6 can slide through the helical teeth, and when the self-adaptive elastic sheet 2 is rotated to a state of tightly pressing a cable, the anti-loosening stop rod 6 can effectively prevent the helical lock hoop 3 and prevent the elastic sheet from loosening;

the sliding limiting rod is provided with a rod body and a rod head, the rod body structure is fixed on the split protection body 1, the diameter of the rod head is larger than the width of the sliding limiting groove 7, and the self-adaptive elastic sheet 2 is guaranteed not to be separated when sliding.

The device of the invention can be more clearly shown by three-dimensional diagrams of the external and internal structures of the embodiment of the cable abrasion-proof device of the invention shown in fig. 3 and 4;

during the application, adopt precession formula components of a whole that can function independently protection body 1 structure will be protected the cable cladding in the centre, spiral lock hoop 3 makes shell fragment ejector pin 4 rotatory at the rotation in-process, shell fragment ejector pin 4 has slot and one end threaded long member, along with shell fragment ejector pin 4's rotation, shell fragment ejector pin 4 compresses tightly self-adaptation shell fragment 2 in the protection on the cable, and self-adaptation shell fragment 2 can adapt to the cable of different diameters, self-adaptation shell fragment 2 compresses tightly the back of targetting in place, spiral lock hoop 3 that will have skewed tooth through locking stop lever 5 is fixed, prevent that the shell fragment under the vibration environment from breaking away from. When the device is disassembled, the reset spring 6 is pressed to lift the anti-loosening stop rod 5, the spiral lock hoop 3 rotates reversely to drive the elastic sheet ejector rod 4 to rotate, and the self-adaptive elastic sheet 2 resets under the action of elasticity, so that the self-adaptive elastic sheet 2 is separated from the cable, and the cable can be smoothly separated.

The method is simple and flexible to implement, can be implemented at any stage of cable laying, can be applied to the anti-abrasion protection of the cabin-penetrating through hole part of the aircraft or the ground equipment cable, and can also be applied to any scene with the anti-abrasion protection of the cable, and the cable is prevented from being abraded or damaged in the scenes such as vibration, so that the control of the whole system or the safe operation of a circuit is influenced.

The above embodiments are only for explaining and explaining the technical solution of the present invention, but should not be construed as limiting the scope of the claims. It should be clear to those skilled in the art that any simple modifications or substitutions based on the technical solutions of the present invention can be made to obtain new technical solutions, which fall within the scope of the present invention.

Claims

1. The self-adaptive cable abrasion-proof device is characterized by comprising two identical split protection bodies (1), wherein each split protection body (1) is of a horn-shaped structure, and corners are subjected to chamfering treatment; the two split protection bodies (1) are in threaded connection at the end with the smaller diameter, and the protected cable is covered in the middle; the self-adaptive elastic sheet (2) is arranged in the split protection body (1), and the self-adaptive elastic sheet (2) is an elastic sheet and can adapt to cables with different diameters; during the installation, compress tightly self-adaptation shell fragment (2) on the cable, during the dismantlement, self-adaptation shell fragment (2) resets under the spring action for its and cable separation, the cable can deviate from smoothly.

2. The self-adaptive cable wear prevention device according to claim 1, wherein the split protection body (1) is provided with a sliding limit groove (7), sliding limit rods are arranged at two ends of the self-adaptive elastic sheet and comprise rod bodies and rod heads, the rod bodies are fixed on the split protection body (1), and the diameter of the rod heads is larger than the width of the limit groove.

3. An adaptive cable wear prevention device according to claim 1 or 2, characterized in that the split body (1) has a thread on the outside of the smaller diameter end, on which a screw lock collar (3) with a thread on the inner surface is mounted; when the spiral lock hoop (3) rotates, the self-adaptive elastic sheet is tightly pressed on the cable through the elastic sheet ejector rod (4); one end of the elastic sheet ejector rod (4) is of a threaded structure, the other end of the elastic sheet ejector rod is a smooth round head, a long round groove is formed in the middle of the ejector rod, and a rotating shaft is inserted in the middle of the long round groove, so that the elastic sheet ejector rod can rotate around the rotating shaft; the internal thread of the spiral lock hoop (3) is matched with the thread at the top of the elastic sheet ejector rod (4), and the smooth round head is contacted with the self-adaptive elastic sheet (2).

4. The self-adaptive cable abrasion-proof device according to claim 3, wherein the side of the spiral lock hoop (3) is provided with a circle of helical teeth, the anti-loose stop rod (5) is pressed on the helical teeth on one side of the spiral lock hoop (3) through the return spring (6), during the pressing process of the self-adaptive elastic sheet (2), the spiral lock hoop (3) is rotated, the anti-loose stop rod (5) slides through the helical teeth, and when the self-adaptive elastic sheet (2) is rotated to a state of pressing the cable, the anti-loose stop rod (5) prevents the lock hoop from reversing.