阅读说明：本技术 一种磁电转速测量装置 (Magnetoelectric rotating speed measuring device ) 是由 陈浩远 张志强 潘威 顾宝龙 赵振平 常斌 于 2019-11-19 设计创作，主要内容包括：本发明公开了一种磁电转速测量装置,包括衔铁、漆包线、骨架、二个连接柱、永磁体和导线,衔铁和永磁体在骨架的内部衔接,骨架的肩部的左右二侧侧面各有二个凹槽；肩部的左右二侧的端面上各有一个第一通孔；每一个连接柱有一个左右贯通的第二通孔,端面有第三通孔,第二通孔和第三通孔连通,连接柱分别固定在骨架的第一通孔上；两组漆包线并联绕制在骨架的颈部上,两组漆包线的二侧分别引出的两根线头分别穿过骨架一侧上的两个凹槽,引出后的线头穿过同侧连接柱的第二通孔后再从连接柱的第三通孔引出,每个连接柱的第三通孔有一根导线插入,将同一第三通孔内的二个漆包线线头和导线锡焊导通。本发明通过两组漆包线并联实现了降低阻值并增加输出。(The invention discloses a magnetoelectric rotating speed measuring device which comprises an armature, an enameled wire, a framework, two connecting posts, a permanent magnet and a lead, wherein the armature and the permanent magnet are connected in the framework, and the left side surface and the right side surface of the shoulder part of the framework are respectively provided with two grooves; the end surfaces of the left side and the right side of the shoulder part are respectively provided with a first through hole; each connecting column is provided with a second through hole which is communicated with the left and the right, the end surface of each connecting column is provided with a third through hole, the second through holes are communicated with the third through holes, and the connecting columns are respectively fixed on the first through holes of the framework; two groups of enameled wires are wound on the neck of the framework in parallel, two wire ends led out from two sides of the two groups of enameled wires respectively penetrate through two grooves on one side of the framework, the led wire ends penetrate through the second through holes of the connecting columns on the same side and then are led out from the third through holes of the connecting columns, one wire is inserted into each third through hole of each connecting column, and the two enameled wire ends and the wire in the same third through hole are connected in a tin soldering mode. According to the invention, the resistance value is reduced and the output is increased by connecting the two groups of enameled wires in parallel.)

1. A magnetoelectric rotating speed measuring device comprises an armature (1), a coil component, a permanent magnet (5) and a lead (8), and is characterized in that the coil component comprises an enameled wire (2), a framework (3) and a connecting column (4);

the surface of the framework (3) is insulated, the armature (1) is connected with the permanent magnet (5) in the framework (3), the framework (3) is divided into a neck part (33) and a shoulder part (34), and the side surfaces of the left side and the right side of the shoulder part are respectively provided with two grooves (31); the end surfaces of the left side and the right side of the shoulder part are respectively provided with a first through hole (32);

the number of the connecting columns (4) is 2, each connecting column (4) is provided with a second through hole which is through from left to right, the end face of each connecting column is provided with a third through hole, the second through holes are communicated with the third through holes, and the connecting columns are respectively fixed on the first through holes (32) of the framework (3);

two groups of enameled wires (2) are wound on the neck (33) of the framework (3) in parallel, two wire ends led out from one side of the two groups of enameled wires (2) respectively penetrate through two grooves on one side of the framework (3), two wire ends led out from the other side of the two groups of enameled wires (2) respectively penetrate through two grooves on the other side of the framework (3), the wire ends led out penetrate through a second through hole of the connecting column (4) on the same side and then are led out from a third through hole of the connecting column (4), a lead (8) is inserted into a third through hole of each connecting column (4), and the wire ends of the two enameled wires (2) in the same third through hole are conducted with a soldering tin of the lead (8).

2. The magnetoelectric rotating speed measuring device according to claim 1, characterized in that the skeleton (3) is internally provided with a first step through hole, the armature (1) passes through a front end narrow hole of the first step through hole, the permanent magnet (5) passes through a rear end wide hole of the first step through hole, and the front end of the permanent magnet (5) is tightly attached to the rear end of the armature (1).

3. The magnetoelectric rotating speed measuring device according to claim 1, characterized by further comprising a magnetic steel sleeve (7), wherein a second stepped through hole is formed in the magnetic steel sleeve (7), one end of the permanent magnet (5) is inserted into the framework (3), and the other end of the permanent magnet (5) is inserted into a front end wide hole of the second stepped through hole;

and fourth through holes are formed in two sides of the magnetic steel sleeve (7), the shaft of each fourth through hole corresponds to the shaft of the connecting column (4), the lead (8) penetrates through the fourth through hole and then is inserted into the third through hole, and pouring sealant (9) is coated in the fourth through hole to fix the relative positions of the lead (8) and the magnetic steel sleeve (7).

4. A magnetoelectric rotation speed measuring device according to claim 3, characterized by further comprising a housing (6), and the armature (1), the coil assembly, the permanent magnet (5), and the magnetic steel sleeve (7) are placed inside the housing (6).

Technical Field

The invention relates to a rotating speed measuring device, in particular to a magnetoelectric rotating speed measuring device with enameled wires connected in parallel.

Background

An engine in the aircraft is a high-speed rotating mechanical structure, the rotating speed signal of the engine needs to be monitored in real time, and the accuracy of the rotating speed signal and the reliability of a rotating speed measuring device are directly related to the working state and the safety of the aircraft. The traditional magnetoelectric rotating speed measuring device adopts a mode of winding more coils in order to pursue a large output signal, but the more the number of turns of the coil is, the larger the resistance value of the coil is, and then the acquisition and the output of a rear end signal are influenced.

Disclosure of Invention

The invention aims to provide a magnetoelectric rotating speed measuring device which can reduce resistance value enhancing signals in a parallel winding mode and can realize two-path output.

The invention aims to be realized by the following technical scheme:

a magnetoelectric rotating speed measuring device comprises an armature 1, a coil assembly, a permanent magnet 5 and a lead 8, wherein the coil assembly comprises an enameled wire 2, a framework 3 and a connecting column 4;

the surface of the framework 3 is insulated, the armature 1 and the permanent magnet 5 are connected in the framework 3, the framework 3 is divided into a neck part 33 and a shoulder part 34, and the side surfaces of the left side and the right side of the shoulder part are respectively provided with two grooves 31; the end surfaces of the left side and the right side of the shoulder part are respectively provided with a first through hole 32;

the number of the connecting columns 4 is 2, each connecting column 4 is provided with a second through hole which is communicated with the left and the right, the end surface is provided with a third through hole, the second through holes are communicated with the third through holes, and the connecting columns are respectively fixed on the first through holes 32 of the framework 3;

two groups of enameled wires 2 are connected in parallel and wound on the neck 33 of the framework 3 at the same time, so that the resistance of each group is ensured to be the same. Two ends of a thread led out from one side of the two groups of enameled wires 2 respectively pass through two grooves on one side of the framework 3, two ends of a thread led out from the other side of the two groups of enameled wires 2 respectively pass through two grooves on the other side of the framework 3, the led-out ends of the thread are led out from a third through hole of the connecting column 4 after passing through a second through hole of the connecting column 4 on the same side, a wire 8 is inserted into the third through hole of each connecting column 4, and the two ends of the enameled wires 2 in the same third through hole and the soldering tin 8 of the wire are conducted.

Preferably, the framework 3 is internally provided with a first stepped through hole, the armature 1 penetrates through a front end narrow hole of the first stepped through hole, the armature 1 is tightly nested with the stepped hole in the framework 3, the permanent magnet 5 penetrates through a rear end wide hole of the first stepped through hole, and the front end of the permanent magnet 5 is tightly attached to the rear end of the armature 1.

Preferably, the magnetoelectric rotating speed measuring device further comprises a magnetic steel sleeve 7, a second stepped through hole is formed in the magnetic steel sleeve 7, one end of the magnet 5 is inserted into the framework 3, and the other end of the permanent magnet 5 is inserted into a front-end wide hole of the second stepped through hole;

and fourth through holes are formed in two sides of the magnetic steel sleeve 7, the shafts of the fourth through holes correspond to the shafts of the connecting columns 4, the lead 8 penetrates through the fourth through holes and then is inserted into the third through holes, and pouring sealant 9 is coated in the fourth through holes to fix the relative positions of the lead 8 and the magnetic steel sleeve 7.

Preferably, the magnetoelectric rotating speed measuring device further comprises a shell 6, the armature 1, the coil assembly, the permanent magnet 5 and the magnetic steel sleeve 7 are placed inside the shell 6, and pouring sealant 9 is poured inside the shell 6 for fixation.

Compared with the prior art, the invention has the following remarkable advantages: the parallel winding can output larger signals and can reduce internal resistance, so that the design of the signal acquisition circuit is facilitated, and the acquired signals are not distorted.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of a coil assembly.

FIG. 3 is a schematic diagram of a skeleton structure.

Fig. 4 is a bottom view of the frame.

Fig. 5 is a cross-sectional view of the skeleton.

Detailed Description

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

Referring to fig. 1, 2, 3, 4, and 5, the magnetoelectric rotation speed measuring device according to the present embodiment includes an armature 1, a coil assembly, a permanent magnet 5, and a lead wire 8, where the coil assembly includes an enameled wire 2, a skeleton 3, and a connection post 4;

the surface of the framework 3 is insulated, the armature 1 and the permanent magnet 5 are connected in the framework 3, the framework can be symmetrical or asymmetrical left and right, the framework 3 is divided into a neck part 33 and a shoulder part 34, and the side surfaces of the left side and the right side of the shoulder part are respectively provided with two grooves 31; the end surfaces of the left side and the right side of the shoulder part are respectively provided with a first through hole 32;

the number of the connecting columns 4 is 2, each connecting column 4 is provided with a second through hole which is communicated with the left and the right, the end surface is provided with a third through hole, the second through holes are communicated with the third through holes, and the connecting columns are respectively fixed on the first through holes 32 of the framework 3;

two groups of enameled wires 2 are connected in parallel and wound on the neck 33 of the framework 3 at the same time, so that the resistance of each group is ensured to be the same. Two ends of a thread led out from one side of the two groups of enameled wires 2 respectively pass through two grooves on one side of the framework 3, two ends of a thread led out from the other side of the two groups of enameled wires 2 respectively pass through two grooves on the other side of the framework 3, the led-out ends of the thread are led out from a third through hole of the connecting column 4 after passing through a second through hole of the connecting column 4 on the same side, a wire 8 is inserted into the third through hole of each connecting column 4, and the two ends of the enameled wires 2 in the same third through hole and the soldering tin 8 of the wire are conducted.

When the magnetoelectric rotating speed measuring device works, the permanent magnet 5 magnetizes the armature 1, the external magnetic conduction rotating part cuts a magnetic field emitted by the armature 1, and two ends of the two groups of wound enameled wires 2 generate corresponding induced electromotive force and transmit the induced electromotive force to an external circuit through the lead 8 to output corresponding electric signals.

The framework 3 is internally provided with a first stepped through hole, the armature 1 penetrates through a front end narrow hole of the first stepped through hole, the armature 1 is tightly nested with the stepped hole in the framework 3, the permanent magnet 5 penetrates through a rear end wide hole of the first stepped through hole, and the front end of the permanent magnet 5 is tightly attached to the rear end of the armature 1.

The magnetoelectric rotating speed measuring device further comprises a magnetic steel sleeve 7, a second step through hole is formed in the magnetic steel sleeve 7, the framework 3 is inserted into one end of the magnet 5, and the front end wide hole of the second step through hole is inserted into the other end of the permanent magnet 5.

And fourth through holes are formed in two sides of the magnetic steel sleeve 7, the shafts of the fourth through holes correspond to the shafts of the connecting columns 4, the lead 8 penetrates through the fourth through holes and then is inserted into the third through holes, and pouring sealant 9 is coated in the fourth through holes to fix the relative positions of the lead 8 and the magnetic steel sleeve 7.

The magnetoelectric rotating speed measuring device also comprises a shell 6, wherein the armature 1, the coil component, the permanent magnet 5 and the magnetic steel sleeve 7 are arranged inside the shell 6, and pouring sealant 9 is poured inside the shell 6 for fixation.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.