CN211377828U

CN211377828U - Encoder assembly

Info

Publication number: CN211377828U
Application number: CN201922400547.1U
Authority: CN
Inventors: 孙宝石; 荆明文; 胡文华; 范增; 刘思明; 李云鹏; 谷雨; 郝家兴; 李海洋; 付怀波; 王安国
Original assignee: Jiamusi Electric Machine Co Ltd
Current assignee: Jiamusi Electric Machine Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-28
Anticipated expiration: 2029-12-27

Abstract

The utility model provides an encoder subassembly to solve the big axle sleeve formula encoder of current cavity type and adopt axle sleeve and grating dish lug connection, along with the motor shaft becomes thick and cause component specifications such as grating dish big, the encoder specification of selecting for use just is big more, leads to the higher price of cost to be expensive. And, for some motors with large shaft running quantity, the problem of encoder damage is easily caused. The utility model comprises a first gear, a second gear, a shell and an encoder; the center of the first gear is provided with a mounting hole, the first gear is rotatably arranged in the shell, the encoder is fixed in the shell, the shaft of the encoder is fixed with the second gear, the first gear is meshed with the second gear, and a lead on the encoder extends out of the shell. The utility model has the characteristics of the fault rate is low, with low costs and the commonality is strong. The utility model discloses can adopt less encoder to be connected with the motor shaft of great major diameter.

Description

Encoder assembly

Technical Field

The utility model relates to an encoder transmission, concretely relates to encoder subassembly.

Background

An encoder is a device that compiles, converts, and/or formats signals or data into a form of signals that can be used for communication transmission and storage. The motor protection device is applied to a motor, can be used for detecting whether the motor runs according to the direction and the rotating speed of system design, and plays a role in monitoring and protecting. In recent years, in the motor ordering products of our company, products with an encoder and a brake or an overspeed switch are required to be increased gradually, and in such a case, a hollow large-shaft sleeve type encoder needs to be selected as the motor encoder, so that a small shaft is reserved after the encoder is linked to realize linkage with the brake or the overspeed switch.

At present, the structure of the existing hollow large-sleeve encoder on the market is that the shaft sleeve is directly connected with the grating disc on the encoder, the larger the required shaft hole is, the larger the specifications of elements such as the grating disc matched with the shaft hole are, the larger the specification of the selected encoder is, and the higher cost and the higher price are caused. And, because some motors self reasons can produce great axle float volume at the rotation in-process, motor shaft directly links or passes through the coupling joint with the encoder, and motor shaft and encoder all are on same axis, and the float of motor all influences the encoder greatly, leads to the encoder fault rate higher.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, and provide an encoder subassembly.

The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:

an encoder assembly includes a first gear, a second gear, a housing, and an encoder;

the center of the first gear is provided with a mounting hole, the first gear is rotatably arranged in the shell, the encoder is fixed in the shell, the shaft of the encoder is fixed with the second gear, the first gear is meshed with the second gear, and a lead on the encoder extends out of the shell.

Compared with the prior art, the utility model following beneficial effect has:

one, the utility model discloses a first gear and the connection structure of second gear drive replacement original grating dish and axle sleeve, because the motor shaft effort is not direct action epaxial at the encoder during operation, but through first gear action on the shell, avoid because the effort during operation makes the encoder receive the phenomenon of damage and take place, reduced the fault rate of encoder.

Two, to thicker motor shaft, the utility model discloses can adopt than little grating disc to pass through gear drive's form and motor shaft connection, be favorable to reduce cost, the commonality is strong.

Drawings

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

Detailed Description

Example 1: as shown in fig. 1, an encoder assembly of the present embodiment includes a first gear 1, a second gear 2, a housing 3, and an encoder 4;

processing has the mounting hole in the center of first gear 1, and first gear 1 rotates and sets up in shell 3, and encoder 4 is fixed in the shell, is fixed with second gear 2 on encoder 4's the axle, and first gear 1 and 2 intermeshing of second gear, wire on the encoder 4 stretch out from shell 3.

In this embodiment, the first gear 1 and the second gear 2 may be made of stainless steel, and are applied to the harsh environment, so as to improve the corrosion resistance.

Example 2: as shown in fig. 1, the present embodiment is different from embodiment 1 in that: in the embodiment, two side surfaces of the first gear 1 are respectively provided with a cylindrical boss 1-1 concentric with the axis of the first gear 1, each cylindrical boss 1-1 is provided with a bearing 5, and each bearing 5 is arranged inside the shell 3 and matched with the shell 3.

In the embodiment, a threaded hole penetrating through the mounting space of the first gear 1 is processed on the cylindrical boss 1-1 of the first gear 1, a jackscrew 6 is arranged in the threaded hole, and the jackscrew 6 is used for fixing a motor shaft.

In the embodiment, a key groove can be processed in the mounting hole of the first gear 1, and the first gear is manufactured into a hub form to transmit torque with a motor shaft in a key connection mode.

The housing 3 of embodiments 1 and 2 may be provided with a mounting tab for securing the housing 3 to the device.

Example 3: the present embodiment is different from embodiment 2 in that: the shell 3 in this embodiment can be further processed with a cylindrical positioning boss and a flange, the cylindrical positioning boss and the flange are concentrically arranged, and therefore the purpose of setting is convenient for a user to ensure concentricity of the motor shaft and the first gear 1 when the user is connected with equipment through the flange, so as to ensure installation accuracy.

Claims

1. An encoder assembly, characterized by: the device comprises a first gear (1), a second gear (2), a shell (3) and an encoder (4);

processing has the mounting hole in the center of first gear (1), and first gear (1) rotates and sets up in shell (3), and encoder (4) are fixed in the shell, are fixed with second gear (2) on the axle of encoder (4), and first gear (1) and second gear (2) intermeshing, and wire on encoder (4) stretches out from shell (3).

2. The encoder assembly of claim 1, wherein: two side surfaces of the first gear (1) are respectively provided with a cylindrical boss (1-1) concentric with the axis of the first gear (1), each cylindrical boss (1-1) is provided with a bearing (5), and each bearing (5) is arranged inside the shell (3) and matched with the shell (3).

3. The encoder assembly of claim 2, wherein: a threaded hole which is communicated with the mounting space of the first gear (1) is processed on the cylindrical boss (1-1) of the first gear (1), and a jackscrew (6) is arranged in the threaded hole.

4. The encoder assembly of claim 1, wherein: a key groove for connecting a motor shaft is processed on the mounting hole of the first gear (1).