CN210225187U

CN210225187U - Encoder installation assembly

Info

Publication number: CN210225187U
Application number: CN201921422115.4U
Authority: CN
Inventors: Xiabin Chang; 常霞彬; Hongmin Jing; 荆红民; Jun Xu; 徐军; Chen Zhang; 张晨; Kai Zhu; 朱凯
Original assignee: SHANGHAI LEIZHI MOTOR Co Ltd
Current assignee: SHANGHAI LEIZHI MOTOR Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-03-31
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses an encoder installation assembly, encoder installation assembly includes code wheel, PCB board, protection casing and motor, code wheel detachably sets up in the pivot of motor, the PCB board is direct fixed as an organic whole with the direct detachably of protection casing, protection casing detachably installs on the rear end cover of motor. The utility model discloses with PCB board direct mount on the protection casing, reduced the axial space of protection casing to the axial length of motor has been reduced, and still reduced the support components, make the structure simpler and the cost is reduced. The utility model discloses with PCB board direct mount on the protection casing, reduced the axial space of protection casing to the axial length of motor has been reduced, and still reduced the support components, make the structure simpler and the cost is reduced.

Description

Encoder installation assembly

Technical Field

The utility model relates to an encoder field, concretely relates to encoder installation assembly.

Background

With the rapid development of new automation industries such as robots, manipulators and the like, the requirements of equipment where a permanent magnet synchronous servo motor is located on the volume, the rapid response and the positioning accuracy of the motor are continuously improved; the motor is provided with a high-precision encoder to achieve the function.

Referring to fig. 1, an encoder installation assembly in the prior art generally includes a PCB, a grating support, an encoder support, a bearing, an installation elastic sheet and a shaft sleeve, and the following problems exist in the structure:

because the existence of two bearings and installation shell fragment, the holistic axial of encoder and radial dimension are great, and the whole volume of motor is just also great thereupon, and encoder head is great in addition, produces the line installation or the circulation in-process is slower, and production efficiency is not high.

Referring to fig. 2, there is also a split type encoder mounting structure in the prior art, which is composed of three parts, namely a bracket, a code wheel and a circuit board. When the encoder in the prior art is installed, firstly, the circuit board is installed on the support, then, the support provided with the circuit board is installed on the rear end cover of the motor, then, the coded disc is installed on the motor shaft to fix and complete the installation of the whole encoder, and then, the protective cover of the encoder is installed, so that the structure has the following problems:

a certain gap is required between the encoder and the rear end cover, and a certain gap is also required between the encoder and the rear cover, so that the axial length of the encoder end of the motor is larger.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem to an encoder installation assembly is provided.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an encoder installation assembly, encoder installation assembly includes code wheel, PCB board, protection casing and motor, code wheel detachably sets up in the pivot of motor, the PCB board is direct fixed as an organic whole with the direct detachably of protection casing, protection casing detachably installs on the rear end cover of motor.

In a preferred embodiment of the present invention, the protective cover is provided with a plurality of first screw holes.

In a preferred embodiment of the present invention, a mounting groove is formed in the protective cover, and the PCB is detachably fixed in the mounting groove.

In a preferred embodiment of the present invention, the shape of the seating groove is the same as that of the PCB.

In a preferred embodiment of the present invention, four connecting plates are disposed in the placing groove, each connecting plate is provided with a second screw hole, the second screw hole is correspondingly matched with any one of the bayonets on the PCB, and after the PCB is placed in the placing groove, the PCB can be detachably fixed by passing through the bayonets and the second screw holes in sequence through screws.

In a preferred embodiment of the present invention, the protective cover is formed by direct die-casting of an aluminum mold.

The utility model has the advantages that:

the utility model discloses with PCB board direct mount on the protection casing, reduced the axial space of protection casing to the axial length of motor has been reduced, and still reduced the support components, make the structure simpler and the cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art encoder mounting assembly;

FIG. 2 is a schematic view of another prior art encoder mounting assembly

Fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic structural diagram of a PCB board;

FIG. 5 is a schematic structural view of a shield;

FIG. 6 is a schematic view of the installation of the PCB and the shield;

FIG. 7 is a schematic view of the mounting of the code wheel and the motor.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

Referring to fig. 3 to 7, the present invention provides an encoder installation assembly, which includes a code wheel 100, a PCB 200, a shield 300 and a motor 400.

And a code wheel 100 detachably provided on a rotation shaft 410 of the motor 400.

The mounting between the code wheel 100 and the rotating shaft 410 can be specifically realized as follows:

the steps for assembling the code wheel 100 are processed on the rotating shaft 410, then the code wheel 100 is directly sleeved into the tail end of the rotating shaft 410 from the axial direction to the step positioning position, and fastening screws around the shaft sleeve of the code wheel 100 are locked, so that the detachable installation can be realized.

The PCB panel 200 is directly detachably fixed to the shield cap 300 as one body, and then the shield cap 300 is directly detachably mounted on the rear cover plate of the motor 400, so that a bracket is not required to be mounted, and an axial space of the shield cap is reduced, thereby reducing an axial length of the motor.

The protection cover 300, which may be embodied as a regular octagon, is provided at four horizontal sides thereof with first screw holes 310, respectively, such that it is assembled with the rear cover plate of the motor 400 by means of screws engaged with the first screw holes 310.

A disposition groove 500 is formed inside the shield cap 300, the disposition groove 500 is shaped to correspond to the PCB 200, and the PCB 200 is directly detachably fixed in the disposition groove 500.

Like this protection casing 300 can be according to actual demand, the resettlement groove 500 of seting up corresponding degree of depth, perhaps, the encoder when the installation, can directly select the protection casing 300 of resettlement groove 500 of corresponding degree of depth to need not constantly debug encoder axial installation size, improve assembly efficiency.

Four connecting plates 510 are arranged in the placing groove 500, each connecting plate 510 is provided with a second screw hole 511, and each second screw hole is correspondingly matched with any bayonet 210 on the PCB 200, so that after the PCB 200 is placed in the placing groove 500, the PCB can be detachably fixed by sequentially penetrating the bayonet 210 and the second screw holes 511 through screws, and the PCB placing groove is very convenient to install and disassemble.

In addition, a buckle may be disposed in the placement groove 500, and the buckle is detachably fixed to the bayonet 210 of the PCB 200.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an encoder installation assembly, its characterized in that, encoder installation assembly includes code wheel, PCB board, protection casing and motor, code wheel detachably sets up in the pivot of motor, the PCB board is direct fixed as an organic whole with the direct detachably of protection casing, protection casing detachably installs on the rear end cover of motor.

2. The encoder mounting assembly of claim 1, wherein said shield defines a plurality of first threaded openings.

3. An encoder mounting assembly according to claim 1, wherein the shield casing has a receiving slot therein, the PCB being removably secured in the receiving slot.

4. An encoder mounting assembly according to claim 3, wherein the seating groove is shaped identically to the PCB.

5. The encoder installation assembly of claim 4, wherein the installation slot is internally provided with four connection plates, each connection plate is provided with a second screw hole, the second screw hole is correspondingly matched with any bayonet on the PCB, and after the PCB is placed in the installation slot, the PCB can be detachably fixed by passing through the bayonet and the second screw hole in sequence through screws.

6. An encoder mounting assembly according to claim 1, wherein the shield is die cast directly from an aluminium die.