CN210898832U

CN210898832U - Magnetic ring encoder structure of permanent magnet synchronous traction machine

Info

Publication number: CN210898832U
Application number: CN201922255127.9U
Authority: CN
Inventors: 江振河; 梁昌勇; 李红文; 杨良才
Original assignee: Hepu Power Co ltd
Current assignee: Hepu Power Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-06-30
Anticipated expiration: 2029-12-16

Abstract

A magnetic ring encoder structure of a permanent magnet synchronous tractor comprises an encoder and an encoder magnetic ring which are arranged on a motor with an end cover, and is characterized in that the encoder magnetic ring is arranged on a main shaft of the motor penetrating out of the end cover in an interference manner or through a fastener, the encoder is arranged on the end cover and forms induction with the encoder magnetic ring, and a dustproof cover with a wire outlet hole is arranged outside the end cover. Compared with the prior art, the utility model, have need not through taper hole or flange fixed, can avoid the encoder to beat and the advantage of host computer vibration.

Description

Magnetic ring encoder structure of permanent magnet synchronous traction machine

Technical Field

This patent belongs to permanent-magnet machine technique.

Background

The encoder is used as a component part on the traction machine and plays an important role in the running condition of the traction machine. The most popular traction machines in the market are encoders using sine and cosine signals, such as heidham ERN1387, cheng 53C 9. The installation mode is a conical shaft type. Through the taper hole of direct mount on the main shaft or flange is fixed, this kind of structure is higher to the concentricity and the requirement of beating of taper hole and flange, and is more complicated on the technology, and the taper hole is inside difficult for wasing moreover, and the impurity that drops easily influences the assembly effect. When the machining accuracy cannot be satisfied, the encoder is likely to bounce, the main machine vibrates, and the riding comfort is reduced.

Disclosure of Invention

The utility model aims at providing an it need not be fixed, can avoid the encoder to beat and the magnetic ring encoder structure of the synchronous hauler of permanent magnetism of host computer vibration through taper hole or flange.

The device of the patent is realized as follows: the motor with the end cover comprises an encoder and an encoder magnetic ring which are arranged on a motor with the end cover, and is characterized in that the encoder magnetic ring is arranged on a main shaft of the motor which penetrates out of the end cover in an interference manner or through a fastening piece, the encoder is arranged on the end cover and forms induction with the encoder magnetic ring, and a dustproof cover with a wire outlet hole is arranged outside the end cover.

The matching surface of the encoder magnetic ring and the matching surface of the bearing are machined in one tool, the concentricity is high, the requirement on the installation precision of the encoder magnetic ring is easily met, and therefore the encoder jumping and the host machine vibration can be avoided.

Compared with the application technology, the utility model, have need not through taper hole or flange fixed, can avoid the encoder to beat and the advantage of host computer vibration.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the encoder and the radial induction structure of the encoder magnetic ring shown in FIG. 1A.

Detailed Description

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

as shown in the figure, the utility model discloses a realize like this, including installing encoder 3, encoder magnetic ring 4 on the motor 2 that has end cover 1, its special character lies in encoder magnetic ring 4 interference or installs on wearing out the main shaft 5 of motor 2 outside end cover 1 through the fastener, encoder 3 then sets up on end cover 1 and its response face 3a forms the response with the response face 4a of encoder magnetic ring 4, is provided with the shield 7 of opening wire hole 6 outside end cover 1.

Claims

1. A magnetic ring encoder structure of a permanent magnet synchronous tractor comprises an encoder and an encoder magnetic ring which are arranged on a motor with an end cover, and is characterized in that the encoder magnetic ring is arranged on a main shaft of the motor penetrating out of the end cover in an interference manner or through a fastener, the encoder is arranged on the end cover and forms induction with the encoder magnetic ring, and a dustproof cover with a wire outlet hole is arranged outside the end cover.