CN219714736U - Rotating shaft suitable for collecting target data and system with same - Google Patents

Abstract

According to the rotating shaft suitable for collecting target data, the electromagnetic shielding layer is electrically connected with the rotating shaft body to wrap the flexible collecting plate in the rotating shaft body, so that an electromagnetic shielding effect is formed, the accuracy of obtaining the target data is improved, meanwhile, the packaging layer number of the data collecting assembly is reduced, particularly the layer number of the electromagnetic shielding layer which is difficult to bond is reduced, the packaging thickness is reduced, the peeling risk of each layer of the rotating shaft in the rotating process is further reduced, and the packaging stability of the data collecting assembly is greatly improved; in another aspect, the present utility model provides a spindle testing system, including a spindle adapted to collect target data as described above.

Description

Rotating shaft suitable for collecting target data and system with same

Technical Field

The utility model relates to the field of data acquisition, in particular to a rotating shaft suitable for acquiring target data and a system with the rotating shaft.

Background

Helicopter drive shaft torque and vibration testing is a critical task for flight test qualification. In the prior art, a flexible acquisition board can be installed on a transmission shaft at present, so that target data of the transmission shaft can be acquired. In general, electromagnetic shielding of the flexible acquisition board is required to acquire accurate target data. In the prior art, the method for electromagnetic shielding of the flexible acquisition board is to place copper foil layers on the inner side and the outer side of the flexible acquisition board and wrap the flexible acquisition board therein. However, the helicopter transmission shaft is fast in the rotational speed, and the rotation process of the helicopter transmission shaft can generate strong centrifugal force, and the copper foil layers are not easy to bond relatively, so that the peeling risk in the rotation process can be greatly improved by the double-layer copper foil layer structure, and the technical problem to be solved in the field is solved by how to reduce the peeling risk of each layer while ensuring the electromagnetic shielding effect.

Disclosure of Invention

Accordingly, there is a need for a spindle adapted to collect target data, including:

a rotating shaft body;

the data acquisition assembly comprises a flexible acquisition plate and an electromagnetic shielding layer, wherein the flexible acquisition plate is used for acquiring target data of the rotating shaft, the electromagnetic shielding layer is fixed to the rotating shaft body and is electrically connected with the rotating shaft body, an electromagnetic shielding cavity is formed between the electromagnetic shielding layer and the rotating shaft body, and the flexible acquisition plate is arranged in the electromagnetic shielding cavity and is fixedly installed relative to the rotating shaft body.

The rotating shaft body is made of conductive materials at least in the installation area of the data acquisition component.

So set up, electromagnetic shield layer is connected with pivot body electricity and wraps up flexible acquisition board wherein to formed electromagnetic shield effect, increased the accuracy of acquireing target data, also reduced the encapsulation number of piles of data acquisition subassembly simultaneously, especially reduced the number of piles of the electromagnetic shield layer that is difficult to bond, reduced encapsulation thickness, and then reduced the pivot and rotated the peeling risk that each layer produced in the in-process, improved the stability of data acquisition subassembly encapsulation greatly. In an embodiment of the utility model, the data acquisition assembly further includes a first insulating protection layer, wherein the first insulating protection layer is fixedly connected to the outer peripheral surface of the rotating shaft body, and at least part of the first insulating protection layer is located between the rotating shaft body and the flexible acquisition board in an inner-outer direction.

So set up, first insulating protection layer has played the effect of insulating flexible collection board and pivot body to play the effect of protection pivot body outer peripheral face.

In one embodiment of the present utility model, the data acquisition assembly further includes a first stress layer, where the first stress layer is wrapped on the outer side of the flexible acquisition board and is connected to the rotating shaft body and/or the first insulating protection layer on two sides of the flexible acquisition board along the axial direction of the rotating shaft body, and at least part of the first stress layer is located between the flexible acquisition board and the electromagnetic shielding layer in the inner and outer directions.

So set up, first atress layer can be firmly be fixed in the pivot body with the flexible collection board on, prevent to rotate in-process flexible collection board and peel off to play the effect of protection flexible collection board.

In an embodiment of the utility model, the data acquisition assembly further includes a second stress layer, where the second stress layer is wrapped on the outer side of the first stress layer and is connected to the rotating shaft body and/or the first insulating protection layer on two sides of the second stress layer along the axial direction of the rotating shaft body, and at least part of the second stress layer is located between the first stress layer and the electromagnetic shielding layer in the inner and outer directions.

So set up, the second atress layer can be firmly fixed in the pivot body with first atress layer on, prevents to rotate in-process first atress layer and peels off, and then also makes flexible collection board connect more firmly to the effect of protecting first atress layer has been played.

In an embodiment of the utility model, a sealing glue layer is disposed at a connection position of the second stress layer and the rotating shaft body and/or the first insulating protection layer.

So set up, the seal gum layer can make the inside and the air isolation of second atress layer, and then prevents to rotate the in-process air and get into the inside and then the peeling off risk that produces of second atress layer.

In one embodiment of the present utility model, the data acquisition assembly further includes a first buffer layer fixedly connected to an outer side of the first insulating protection layer, the flexible acquisition board is fixedly connected to an outer side of the first buffer layer, and the first buffer layer is located between the first insulating protection layer and the flexible acquisition board in an inner-outer direction.

So set up, the inboard that first buffer layer can flexible collection board does not have the air to get into to for flexible collection board provides the cushioning effect, protect it not damaged by centrifugal force's change.

In an embodiment of the utility model, the data acquisition assembly further includes a protection layer, the protection layer is wrapped on the outer side of the electromagnetic shielding layer, and two ends of the protection layer are respectively connected with the rotating shaft body along the axial direction of the rotating shaft body.

The protective layer can increase the toughness of the surface of the data acquisition component, plays a role in preventing water and dust, and plays a role in protecting the electromagnetic shielding layer.

In one embodiment of the present utility model, the rotating shaft adapted to collect target data further includes a coil assembly, the coil assembly is electrically and/or communicatively connected to the data collection assembly, and the coil assembly and the data collection assembly are spaced apart along the axial direction of the rotating shaft body. In one embodiment of the present utility model, the coil assembly includes a power supply coil, a communication coil, a second insulating protection layer, a second buffer layer, a third stress layer, and a fourth stress layer, where the second insulating protection layer is fixedly connected to an outer peripheral surface of the rotating shaft body, the second buffer layer is fixedly connected to an outer side of the second insulating protection layer, the power supply coil and the communication coil are fixedly connected to an outer side of the second buffer layer, the third stress layer is coated on an outer side of the power supply coil and the communication coil and is respectively connected to the rotating shaft body and/or the second insulating protection layer at two ends of the third stress layer along an axial direction of the rotating shaft body, and the fourth stress layer is coated on an outer side of the third stress layer and is respectively connected to the rotating shaft body and/or the second insulating protection layer at two ends of the third stress layer along an axial direction of the rotating shaft body.

Another aspect of the present utility model provides a spindle testing system comprising a spindle adapted to collect target data as described above.

Drawings

FIG. 1 is a perspective view of a spindle adapted to collect target data in accordance with an embodiment of the present utility model;

FIG. 2 is a front view of a spindle adapted to collect target data according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of FIG. 2;

reference numerals:

1. a rotating shaft body; 2. a data acquisition component; 21. a flexible acquisition board; 22. an electromagnetic shielding layer; 23. a first insulating protective layer; 24. a first stress layer; 25. a second stress layer; 26. a sealant layer; 27. a first buffer layer; 28. a protective layer; 3. a coil assembly; 31. a power supply coil; 32. a communication coil; 33. a second insulating protective layer; 34. a second buffer layer; 35. a third stress layer; 36. and a fourth stress layer.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

A spindle adapted to collect target data according to an aspect of the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1-2, a spindle suitable for acquiring target data according to an embodiment of the present utility model includes a spindle body 1, a data acquisition assembly 2, and a coil assembly 3.

The shaft body 1 is generally made of conductive material, typically metal material, such as iron, steel, copper, etc. It should be noted that, the shaft body 1 is made of conductive material only in the installation area of the data acquisition component 2, and other non-conductive materials are also included in the protection scope of the present utility model.

As shown in fig. 3, the data acquisition assembly 2 includes a flexible acquisition board 21 and an electromagnetic shielding layer 22 for acquiring target data of the rotating shaft, the electromagnetic shielding layer 22 is fixed to the rotating shaft body 1 and electrically connected with the rotating shaft body 1, an electromagnetic shielding cavity is formed between the electromagnetic shielding layer 22 and the rotating shaft body 1, and the flexible acquisition board 21 is disposed in the electromagnetic shielding cavity and is fixedly mounted relative to the rotating shaft body 1.

It should be noted that, the flexible acquisition board 21 is typically a flexible circuit board containing test target data electronic components; the electromagnetic shielding layer is made of conductive materials, usually metal materials such as copper, silver, iron and the like, and can also be directly sprayed conductive paint; the existing rotating shaft body 1 for the helicopter is usually sprayed with insulating paint, so that the insulating paint on the rotating shaft body 1 needs to be partially or completely removed so as to electrically connect the rotating shaft body 1 with the electromagnetic shielding layer 22, and the insulating paint on the surface of the rotating shaft body 1 is usually removed along one circle of the rotating shaft body 1 in two areas which are axially separated by a certain distance on the outer peripheral surface of the rotating shaft body 1 respectively, so that the rotating shaft body 1 is electrically connected with the electromagnetic shielding layer 22; in general, the flexible collecting plate 21 and the electromagnetic shielding layer 22 are disposed around the rotating shaft body 1, but the utility model does not exclude the embodiment in which the flexible collecting plate 21 and/or the electromagnetic shielding layer 22 are not disposed around the rotating shaft body 1, such as around 1/2, 3/4, etc., which falls within the protection scope of the utility model.

It can be appreciated that the electromagnetic shielding layer 22 is electrically connected with the rotating shaft body 1 to wrap the flexible collecting plate 21 therein, thereby forming an electromagnetic shielding effect, increasing the accuracy of acquiring target data, reducing the number of packaging layers of the data collecting assembly 2, particularly reducing the number of layers of the electromagnetic shielding layer 22 which are difficult to adhere, reducing the packaging thickness, further reducing the peeling risk generated by each layer in the rotating process of the rotating shaft, and greatly improving the packaging stability of the data collecting assembly 2.

In some embodiments, as shown in fig. 3, the data acquisition assembly 2 further includes a first insulating protection layer 23, where the first insulating protection layer 23 is fixedly connected to the outer peripheral surface of the rotating shaft body 1, and a portion of the first insulating protection layer 23 is located between the rotating shaft body 1 and the flexible acquisition board 21 in the inner-outer direction.

Generally, the first insulation protection layer 23 is disposed around the rotation shaft body 1, but the utility model does not exclude the embodiment in which the first insulation protection layer 23 is not disposed around the rotation shaft body 1, such as around 1/2, 3/4, etc., which are all within the scope of the utility model; preferably, in the axial direction of the rotating shaft body 1, the width of the first insulating protection layer 23 is larger than the width of the flexible collecting plate 21, so that all the areas of the flexible collecting plate 21 are positioned at the outer side of the flexible collecting plate, and the insulating effect is ensured; preferably, the first insulating protective layer 23 is a paper tape, for example a 3M 2308 paper tape is used.

It is understood that the first insulating protective layer 23 plays a role of insulating the flexible collecting plate 21 from the rotating shaft body 1 and plays a role of protecting the outer circumferential surface of the rotating shaft body 1.

In some embodiments, as shown in fig. 3, the data acquisition assembly 2 further includes a first stress layer 24, where the first stress layer 24 is wrapped around the outer side of the flexible acquisition board 21 and is connected to the rotating shaft body 1 and/or the first insulating protection layer 23 on two sides of the first stress layer along the axial direction of the rotating shaft body, and a portion of the first stress layer 24 is located between the flexible acquisition board 21 and the electromagnetic shielding layer 22 in the inner-outer direction.

Generally, the first stress layer 24 is disposed around the rotation shaft body 1, but the present utility model does not exclude embodiments in which the first stress layer 24 is not disposed around the rotation shaft body 1, such as around 1/2, 3/4, etc., which are all within the scope of the present utility model; preferably, the first stress layer 24 is a high toughness structural adhesive layer, such as SW-9-6 resin epoxy.

It can be appreciated that the first stress layer 24 can firmly fix the flexible collecting plate 21 on the rotating shaft body 1, prevent the flexible collecting plate 21 from peeling off during the rotation process, and play a role in protecting the flexible collecting plate 21.

In some embodiments, the data acquisition assembly 2 further includes a second stress layer 25, where the second stress layer 25 is wrapped around the outer side of the first stress layer 24 and is connected to the rotating shaft body 1 and/or the first insulating protection layer 23 on two sides of the second stress layer along the axial direction of the rotating shaft body, and a portion of the second stress layer 25 is located between the first stress layer 24 and the electromagnetic shielding layer 22 in the inner-outer direction.

Generally, the second stress layer 25 is disposed around the rotation shaft body 1, but the present utility model does not exclude the embodiment in which the second stress layer 25 is not disposed around the rotation shaft body 1, such as around 1/2, 3/4, etc., which are all within the protection scope of the present utility model; preferably, the second stress layer 25 is a fibrous tape, such as 3M 8915 fibrous tape.

It can be understood that the second stress layer 25 can firmly fix the first stress layer 24 on the rotating shaft body 1, so as to prevent the first stress layer 24 from being peeled off in the rotating process, further make the connection of the flexible collecting plate 21 more firm, and play a role in protecting the first stress layer 24.

In some embodiments, the connection between the second stress layer 25 and the rotating shaft body 1 and/or the first insulating protection layer 23 is provided with a sealant layer 26, for example, formed by using an ailite 411 sealant layer water coating.

It can be appreciated that the sealant layer 26 can isolate the interior of the second stress layer 25 from air, so as to prevent the risk of peeling caused by air entering the interior of the second stress layer 25 during rotation.

In some embodiments, the data acquisition assembly 2 further includes a first buffer layer 27, the first buffer layer 27 being fixedly connected to the outer side of the first insulating protection layer 23, the flexible acquisition board 21 being fixedly connected to the outer side of the first buffer layer 27, the first buffer layer 27 being located between the first insulating protection layer 23 and the flexible acquisition board 21 in the inner-outer direction.

Generally, the first buffer layer 27 is disposed around the rotation shaft body 1, but the present utility model does not exclude the embodiment in which the first buffer layer 27 is not disposed around the rotation shaft body 1, such as around 1/2, 3/4, etc., which are all within the protection scope of the present utility model; preferably, the first buffer layer 27 is a double-sided tape, for example, a 9080A double-sided tape using 3M.

It will be appreciated that the first cushioning layer 27 is capable of providing no air ingress inside the flexible acquisition board 21 and providing cushioning to the flexible acquisition board 21, protecting it from damage by variations in centrifugal force.

In some embodiments, the data acquisition assembly 2 further includes a protective layer 28, the protective layer 28 is wrapped on the outer side of the electromagnetic shielding layer 22, and two ends of the protective layer 28 are respectively connected with the rotating shaft body 1 along the axial direction of the rotating shaft body 1. Generally, the protection layer 28 is disposed around the rotation shaft body 1, but the utility model does not exclude the embodiment in which the protection layer 28 is not disposed around the rotation shaft body 1, such as around 1/2, 3/4, etc., which are all within the protection scope of the utility model; preferably, the protective layer 28 is a sprayed three-way paint.

It will be appreciated that the protective layer 28 may increase the toughness of the surface of the data acquisition assembly 2, act as a waterproof and dust-proof layer, and act as a protective electromagnetic shield 22.

In some embodiments, the spindle adapted to acquire target data further comprises a coil assembly 3, wherein the coil assembly 3 is electrically and/or communicatively connected to the data acquisition assembly 2, and the coil assembly 3 and the data acquisition assembly 2 are spaced apart along the axial direction of the spindle body 1.

In some embodiments, the coil assembly 3 includes a power supply coil 31, a communication coil 32, a second insulating protection layer 33, a second buffer layer 34, a third stress layer 35, and a fourth stress layer 36, where the second insulating protection layer 33 is fixedly connected to the outer peripheral surface of the rotating shaft body 1, the second buffer layer 34 is fixedly connected to the outer side of the second insulating protection layer 33, the power supply coil 31 and the communication coil 32 are fixedly connected to the outer side of the second buffer layer 34, the third stress layer 35 is wrapped on the outer sides of the power supply coil 31 and the communication coil 32 and is respectively connected to the rotating shaft body 1 and/or the second insulating protection layer 33 at two ends of the third stress layer 35 in the axial direction of the rotating shaft body, the fourth stress layer 36 is wrapped on the outer sides of the rotating shaft body and is respectively connected to the rotating shaft body 1 and/or the second insulating protection layer 33 at two ends of the coil assembly 3 in the axial direction of the rotating shaft body, and the structure and function of each layer of the coil assembly 3 are similar to those of the data acquisition assembly 2, and the detailed description is omitted.

In another aspect, the present utility model provides a spindle testing system, including a spindle adapted to collect target data as described above.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A spindle adapted to collect target data, comprising:

a spindle body (1);

the data acquisition assembly (2), the data acquisition assembly (2) comprises a flexible acquisition board (21) and an electromagnetic shielding layer (22) which are used for acquiring target data of the rotating shaft, the electromagnetic shielding layer (22) is fixed to the rotating shaft body (1) and is electrically connected with the rotating shaft body (1), an electromagnetic shielding cavity is formed between the electromagnetic shielding layer (22) and the rotating shaft body (1), and the flexible acquisition board (21) is arranged in the electromagnetic shielding cavity and is fixedly installed relative to the rotating shaft body (1);

the rotating shaft body (1) is made of conductive materials at least in the installation area of the data acquisition component (2).

2. The spindle adapted for acquiring target data according to claim 1, characterized in that the data acquisition assembly (2) further comprises a first insulating protective layer (23), the first insulating protective layer (23) being fixedly connected to the outer circumferential surface of the spindle body (1), at least part of the first insulating protective layer (23) being located between the spindle body (1) and the flexible acquisition board (21) in an inner-outer direction.

3. The spindle adapted for acquiring target data according to claim 2, characterized in that the data acquisition assembly (2) further comprises a first stress layer (24), the first stress layer (24) is coated on the outer side of the flexible acquisition board (21) and is respectively connected with the spindle body (1) and/or the first insulating protection layer (23) at two sides of the spindle body (1) along the axial direction, and at least part of the first stress layer (24) is located between the flexible acquisition board (21) and the electromagnetic shielding layer (22) in the inner-outer direction.

4. A spindle suitable for acquiring target data according to claim 3, characterized in that the data acquisition assembly (2) further comprises a second stress layer (25), the second stress layer (25) being coated on the outer side of the first stress layer (24) and being connected to the spindle body (1) and/or the first insulating protection layer (23) on both sides thereof in the axial direction of the spindle body (1), respectively, at least part of the second stress layer (25) being located between the first stress layer (24) and the electromagnetic shielding layer (22) in the inner and outer direction.

5. The spindle adapted for acquiring target data according to claim 4, characterized in that a joint of the second stress layer (25) with the spindle body (1) and/or the first insulating protective layer (23) is provided with a sealing glue layer (26).

6. The spindle adapted for acquiring target data according to claim 2, characterized in that the data acquisition assembly (2) further comprises a first buffer layer (27), the first buffer layer (27) being fixedly connected to the outside of the first insulating protection layer (23), the flexible acquisition board (21) being fixedly connected to the outside of the first buffer layer (27), the first buffer layer (27) being located between the first insulating protection layer (23) and the flexible acquisition board (21) in the inner-outer direction.

7. The rotating shaft suitable for collecting target data according to claim 1, wherein the data collecting assembly (2) further comprises a protective layer (28), the protective layer (28) is coated on the outer side of the electromagnetic shielding layer (22), and two ends of the protective layer (28) are respectively connected with the rotating shaft body (1) along the axial direction of the rotating shaft body (1).

8. The spindle adapted for acquiring target data according to claim 1, characterized in that the spindle adapted for acquiring target data further comprises a coil assembly (3), the coil assembly (3) being electrically and/or communicatively connected to the data acquisition assembly (2), the coil assembly (3) and the data acquisition assembly (2) being spaced apart along the axis of the spindle body (1).

9. The rotating shaft suitable for collecting target data according to claim 8, wherein the coil assembly (3) comprises a power supply coil (31), a communication coil (32), a second insulating protection layer (33), a second buffer layer (34), a third stress layer (35) and a fourth stress layer (36), the second insulating protection layer (33) is fixedly connected to the outer peripheral surface of the rotating shaft body (1), the second buffer layer (34) is fixedly connected to the outer side of the second insulating protection layer (33), the power supply coil (31) and the communication coil (32) are fixedly connected to the outer side of the second buffer layer (34), the third stress layer (35) is coated on the outer sides of the power supply coil (31) and the communication coil (32) and is respectively connected with the rotating shaft body (1) and/or the second insulating protection layer (33) at two ends of the rotating shaft body (1) along the axial direction, and the fourth stress layer (36) is coated on the outer side of the third stress layer (35) and is respectively connected with the second protection layer (33) and/or the insulating protection layer (1) along the axial direction of the rotating shaft body (1).

10. A spindle testing system comprising a spindle adapted to collect target data according to any one of claims 1 to 9.