CN208847204U

CN208847204U - Bearing-free encoder

Info

Publication number: CN208847204U
Application number: CN201821049594.5U
Authority: CN
Inventors: 方国祥
Original assignee: Shanghai Hengxiang Optical Electronic Co Ltd
Current assignee: Shanghai Hengxiang Optical Electronic Co Ltd
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2019-05-10
Anticipated expiration: 2028-07-04

Abstract

The utility model discloses a kind of bearing-free encoders, including pedestal, lenticular lenses, circuit board, axle sleeve, infrared LED lamp, light-receiving chip, axle sleeve is installed on pedestal, downside outside axle sleeve is arranged with lenticular lenses, circuit board is arranged on axle sleeve above lenticular lenses, there are gaps between circuit board and axle sleeve, and it is fixed by screws on pedestal, circuit board is fixed with light-receiving chip below side, the lower section of light-receiving chip is equipped with slit plate, and infrared LED lamp is fixed in the pedestal below slit plate；Axle sleeve is equipped with installation positioning plate, and installation positioning plate is fixedly connected with pedestal and axle sleeve respectively.The utility model structure is simple, and the height distance and concentricity between grating and slit have absolute guarantee, easy to install and use, reliable and stable, does not need by other ancillary equipments, use cost and manufacturing cost substantially reduce.While solving the high disadvantage of the spoilage during existing product grating is individually wrapped in transport and stores.

Description

Bearing-free encoder

Technical field

The utility model relates to a kind of encoders, and in particular to a kind of bearing-free encoder.

Background technique

Encoder is to work out signal or data, be converted to the signal form that can be used to communication, transimission and storage Equipment.The existing bearing-free encoder course of work mainly passes through infrared light and passes through rotating grating, slit, opto-electronic receiver chip, Desired signal is then converted into export to client.Grating, the slit, opto-electronic receiver core used due to existing bearing-free encoder Piece is all isolated component, so that installing, the product requirement is relatively high, and general operation personnel can not assemble, and is needed quite There is technology just can be with, and disposable qualification rate is low, installation speed is slow.Main cause is grating and slit, opto-electronic receiver chip Between height distance and concentricity cannot disposably be installed in place, need cycled on debugging.And zero-bit tune after mounting Examination is inconvenient, if the electrical zero for installing rear encoder is inaccurate or needs to readjust installation.

Utility model content

Purpose of the utility model is to solve the above problems and provide a kind of installations, and simple, the convenient bearing-free of debugging is compiled Code device.

To achieve the above object, the utility model provides the following technical solutions:

A kind of bearing-free encoder, including pedestal, lenticular lenses, circuit board, axle sleeve, infrared LED lamp, light-receiving chip, It is characterized in that: axle sleeve is installed on the pedestal, the downside outside the axle sleeve is arranged with lenticular lenses, the axis above the lenticular lenses It puts on and is arranged with circuit board, there are gaps between the circuit board and axle sleeve, and are fixed by screws on pedestal, the circuit Light-receiving chip is fixed with below plate side, the lower section of the light-receiving chip is equipped with slit plate, below the slit plate Pedestal in be fixed with infrared LED lamp；The axle sleeve be equipped with installation positioning plate, the installation positioning plate respectively with pedestal and axis Set is fixedly connected.

Further, the infrared LED lamp is located at the downside of lenticular lenses.

Further, power supply line is connected on the infrared LED lamp.

Further, the side of the axle sleeve is equipped with the top wire hole that can be fixedly connected with motor shaft.

Further, the lenticular lenses are cirque structure.

The utility model has the beneficial effects that the utility model technical pattern advantages of simple, the height between grating and slit Distance and concentricity have absolute guarantee, easy to install and use reliable and stable, and not needing professional technician can assemble, also not It needs by other ancillary equipments, use cost and manufacturing cost substantially reduce.It solves existing product grating simultaneously individually to wrap The high disadvantage of spoilage during transport and storage.

Detailed description of the invention

Fig. 1 is the utility model schematic diagram of front three-dimensional structure；

Fig. 2 is the utility model reverse side schematic perspective view；

Fig. 3 is the positive structure schematic of Fig. 1；

Fig. 4 is the positive structure schematic of Fig. 2；

Fig. 5 is schematic cross-section at A-A in Fig. 3；

Fig. 6 is schematic cross-section at B-B in Fig. 3；

Fig. 7 is schematic cross-section at C-C in Fig. 4.

Specific embodiment

Below with reference to being specifically illustrating, the utility model is further elaborated.

As shown in figs. 1-7, a kind of bearing-free encoder of the utility model, including pedestal 1, lenticular lenses 2, circuit board 3, axis Cover 4, infrared LED lamp 10, light-receiving chip 12, it is characterised in that: axle sleeve 4 is installed, outside the axle sleeve 4 on the pedestal 1 Downside is arranged with lenticular lenses 2, is arranged with circuit board 3 on the axle sleeve 4 of 2 top of lenticular lenses, the circuit board 3 and axle sleeve 4 it Between there are gaps, and be fixed on pedestal 1 by screw 8, be fixed with light-receiving chip 12 below 3 side of circuit board, The lower section of the light-receiving chip 12 is equipped with slit plate 11, is fixed with infrared LED lamp in the pedestal 1 below the slit plate 11 10；The axle sleeve 4 is equipped with installation positioning plate 5, and the installation positioning plate 5 is solid by screw 9 and 7 with pedestal 1 and axle sleeve 4 respectively Fixed connection.

The infrared LED lamp 10 is located at the downside of lenticular lenses 2；It is connected with power supply line 13 on the infrared LED lamp 10, connects External power supply.

The side of the axle sleeve 4 is equipped with the top wire hole 6 that can be fixedly connected with motor shaft, by jackscrew by axle sleeve 4 when installation It is fixed with bearing.

The lenticular lenses 2 are cirque structure, conveniently axle sleeve are followed to rotate together.

The bearing-free encoder of the utility model passes through output increment pulse signal and 23 absolute position SSI, solution mesh Preceding servo motor and joint of robot all rely on import and installation and debugging are difficult, at high cost, supply time long problem.Product outer diameter FromAperture axis fromThickness is from 11mm-16.5mm.

When work, rotating grating piece 2, slit plate 11, opto-electronic receiver core are passed through using the infrared light that infrared LED lamp 10 emits Piece 12 is converted into pulse signal needed for client, and encoder itself is no bearing support, using motor output shaft come the centre of location, Axle sleeve 4 is driven to rotate lenticular lenses 2.Due between lenticular lenses 2 and slit plate 11 height and position and center can not determine, Therefore axle sleeve 4 and lenticular lenses 2 are fixed up with pedestal 1 by installing positioning plate 5, solving height, this is most difficult to ask with center Topic keeps it very simple using installing, and when assembly does not need by other toolings, and structure is reliable, substantially reduce use cost and Production cost, while also solving the problems, such as that lenticular lenses 2 are easy to damage in packaging and transportational process.

It should be understood by those skilled in the art that the present utility model is not limited to the above embodiments, above-described embodiment and Only illustrate the principles of the present invention described in specification, on the premise of not departing from the spirit and scope of the utility model, The utility model also has various changes and improvements, these changes and improvements both fall within the scope of the claimed invention It is interior.

Claims

1. a kind of bearing-free encoder, including pedestal, lenticular lenses, circuit board, axle sleeve, infrared LED lamp, light-receiving chip, special Sign is: axle sleeve is equipped on the pedestal, the downside outside the axle sleeve is arranged with lenticular lenses, the axle sleeve above the lenticular lenses On be arranged with circuit board, there are gaps between the circuit board and axle sleeve, and are fixed by screws on pedestal, the circuit board Light-receiving chip is fixed with below side, the lower section of the light-receiving chip is equipped with slit plate, below the slit plate Infrared LED lamp is fixed in pedestal；The axle sleeve be equipped with installation positioning plate, the installation positioning plate respectively with pedestal and axle sleeve It is fixedly connected.

2. bearing-free encoder according to claim 1, it is characterised in that: the infrared LED lamp is located under lenticular lenses Side.

3. bearing-free encoder according to claim 1, it is characterised in that: be connected with power supply line on the infrared LED lamp.

4. bearing-free encoder according to claim 1, it is characterised in that: the side of the axle sleeve is equipped with can be with motor shaft The top wire hole being fixedly connected.

5. bearing-free encoder according to claim 1, it is characterised in that: the lenticular lenses are cirque structure.