CN209279993U

CN209279993U - A kind of encoder shield shell

Info

Publication number: CN209279993U
Application number: CN201822229910.3U
Authority: CN
Inventors: 蒋海峰
Original assignee: Changchun Jimin Optical Instruments Co Ltd
Current assignee: Changchun Jimin Optical Instruments Co Ltd
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2019-08-20
Anticipated expiration: 2028-12-28

Abstract

The utility model provides a kind of encoder shield shell, it include: pedestal and shell, the pedestal is slidably connected with the shell, the shell is divided into first shell and second shell, described first shell one end and second shell one end are slidably connected and are fixed with resilient mounting, the first shell other end is slidably connected with the second shell other end by shell door, the first semicircular part is equipped in the first shell, the second semicircular part is equipped in the second shell, the first shell and second shell distal medial are respectively equipped with shielded layer, the pedestal is fixed with cam gear, encoder is placed between first shell and second shell, the folding of first shell and second shell is driven by cam gear, it can clamp or discharge encoder, because shielded layer setting to encoder resist outer signal play the role of it is effective.

Description

A kind of encoder shield shell

Technical field

The utility model relates to encoder techniques field more particularly to a kind of encoder shield shells.

Background technique

Rotary encoder (also referred to herein simply as encoder) is usually a kind of device for detecting rotating mechanism revolving speed, example Such as detecting the revolving speed of machine shaft, lathe shaft.

In the prior art, the installation of encoder is usually a kind of rigid connection.That is, encoder axis is connected by connector It is connected to the revolving part (such as machine shaft) of rotating mechanism, while encoder body is connected to rotation by fasteners such as bolts The fixing piece (such as electric machine casing or the bracket etc. being fixedly connected with electric machine casing) of mechanism.It is this due to being rigid connection Mounting means just proposes very high requirement to the concentricity between encoder axis and revolving part.In other words, if encoder axis Concentricity between revolving part is bad, in the encoder course of work, i.e., when revolving part drives encoder axis to rotate together, The centre of gyration line and the center line of encoder itself of encoder axis are inconsistent, and encoder axis is caused to generate in encoder body Vibration is shaken, and long-time service will damage encoder, especially high-precision encoder.

Encoder (encoder) be by signal (such as bit stream) or data organization, being converted to can be used to communicates, transmits and deposit The equipment of the form of storage.Encoder is a kind of device for angular displacement or straight-line displacement being converted into electric signal, is that will be displaced conversion It is transformed into counting pulse at periodic electric signal, then this electric signal, the size of displacement is indicated with the number of pulse.It is existing Encoder there is a problem of anti-external signal interference performance difference.

Utility model content

The purpose of this utility model is to solve anti-external signal interference performance difference technical problem existing for encoder, is provided A kind of encoder shield shell, with the good technical effect of anti-external signal interference performance.

Technical solution provided by the utility model are as follows:

A kind of encoder shield shell, comprising: pedestal and shell, the pedestal are slidably connected with the shell, the shell Body includes first shell and second shell, and described first shell one end and second shell one end are slidably connected and are fixed with rebound Device, the first shell other end are slidably connected with the second shell other end by shell door, and the is equipped in the first shell One semicircular part, the second shell is interior to be equipped with the second semicircular part, the first shell and second shell distal medial difference Equipped with shielded layer, the pedestal is fixed with cam gear；

The cam gear includes motor, and the motor is fixedly installed on the base, the motor power output end It is fixedly connected with shaft one end, the shaft other end is fixedly connected with cam, and the cam face is pears type.

Preferably, the resilient mounting includes the first telescopic rod, and first telescopic rod one end is fixed with second shell Connection, the first telescopic rod other end are fixedly connected with movable plate one end, between first telescopic rod and movable plate respectively It is fixedly connected with the first both ends of the spring, the first shell is equipped with telescopic cavity, and the movable plate can live in the telescopic cavity Dynamic, the movable plate other end is fixedly connected with second telescopic rod one end, and the second telescopic rod other end is fixed with telescopic cavity Connection, described the is preferably, and the cam gear quantity is 2.

Preferably, waveform anti-skid device is equipped in first half-round and second half-round.

Preferably, conducting foam is equipped in the shell door.

Preferably, the shielded layer is 3 layers.

Preferably, at least one kind of in filling conducting foam, copper foil and alclad sheet in the shielded layer.

The beneficial effects of the utility model embody in the following areas:

The utility model provides a kind of encoder shield shell, comprising: pedestal and shell, the pedestal and the shell are sliding Dynamic connection, the shell are divided into first shell and second shell, and described first shell one end is slidably connected with second shell one end And it is fixed with resilient mounting, and the first shell other end is slidably connected with the second shell other end by shell door, and described It is equipped with the first semicircular part in one shell, is equipped with the second semicircular part, the first shell and second shell in the second shell Body distal medial is respectively equipped with shielded layer, and the pedestal is fixed with cam gear, and encoder is placed in first shell and Between two shells, the folding of first shell and second shell is driven by cam gear, can clamp or discharge encoder, because of screen Cover the setting of layer to encoder resist outer signal play the role of it is effective.

Detailed description of the invention

Fig. 1 is a kind of encoder shield shell structural schematic diagram.

Specific embodiment

The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation Book text can be implemented accordingly.

As shown in Figure 1, a kind of encoder shield shell, comprising: pedestal 9 and shell, the shell are divided into 1 He of first shell Second shell 2, the pedestal 9 are slidably connected with the shell, and the first shell 1 and 2 bottom of second shell are equipped with sliding block, institute Pedestal 9 is stated equipped with sliding rail, the sliding block and sliding rail are slidably matched, so that first shell 1 and second shell 2 can be in institutes It states pedestal 9 relatively or is away from each other movement, described 1 one end of first shell is slidably connected and is fixed with 2 one end of second shell Resilient mounting 6, the resilient mounting 6 can play buffer function when relative motion occurs for first shell 1 and second shell 2, and First shell 1 and second shell 2 occur to away from when can retract original place, 1 other end of first shell and second shell 2 The other end is slidably connected by shell door 3, and conducting foam is equipped in the shell door 3, and it is semicircle to be equipped with first in the first shell 1 Portion 11, the second shell 2 is interior to be equipped with the second semicircular part 21, sets in first half-round 11 and second half-round 21 There is waveform anti-skid device, can protect encoder and stepped up and will not be damaged.The first shell 1 and second shell 2 Distal medial is respectively equipped with shielded layer, and the shielded layer is 3 layers, respectively first screen layer 12, secondary shielding layer 13, third screen Layer 14, the 4th shielded layer 22, the 5th shielded layer 23, the 6th shielded layer 24 are covered, the maskable signal of filling in each shielded layer Substance, the maskable semiochemicals be conducting foam, copper foil or alclad sheet, shielding action, the pedestal can be effectively played It is fixed with cam gear 2, the cam gear quantity is 2, is divided into for the first cam gear 4 and the second cam gear 9, institute Stating cam gear includes motor, and the motor is fixed on the pedestal 9, the motor power output end and shaft one end It is fixedly connected, the shaft other end is fixedly connected with cam, and the cam face is pears type, is rotated by motor rotate driving Axis rotation, to be rotated with moving cam, because cam is that pears type can drive the shell on pedestal 9 in cam rotation process Movement.

The resilient mounting 6 includes the first telescopic rod 61, described first telescopic rod, 61 one end and the fixed company of second shell 2 Connect, 61 other end of the first telescopic rod is fixedly connected with 63 one end of movable plate, first telescopic rod 61 and movable plate 63 it Between be fixedly connected respectively with 62 both ends of the first spring, the first shell 1 be equipped with telescopic cavity 16, the movable plate 63 can be in institute It is movable in telescopic cavity 16 to state, and 63 other end of movable plate is fixedly connected with 64 one end of the second telescopic rod, second telescopic rod 64 other ends are fixedly connected with telescopic cavity 16, solid with second spring both ends respectively between second telescopic rod 64 and movable plate 63 Fixed connection, the setting of the first telescopic rod 61 and the second telescopic rod 64, it is ensured that spring occurs elastic deformation or restores elastic shape Stability when change.

In use, 1 He of first shell is worked as in the driving of cam gear 4 when encoder 8 is put into first shell 1 and second shell 2 When relative motion occurs for second shell 2,6 first spring of resilient mounting and second spring carry out elastic compression, when needing to take out When encoder 8, cam gear 4 is rotated, and resilient mounting 4 drives first shell 1 and second shell 2 to be away from each other and do exercises When, encoder can be taken out at this time.

It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above Listed utilization.It can be applied to various fields suitable for the present invention completely.For those skilled in the art, Other modifications may be easily implemented.Therefore without departing from the general concept defined in the claims and the equivalent scope, this reality It is not limited to specific details and legend shown and described herein with novel.

Claims

1. a kind of encoder shield shell characterized by comprising pedestal and shell, the pedestal and shell sliding connect It connects, the shell includes first shell and second shell, and described first shell one end and second shell one end are slidably connected and consolidate Surely it is equipped with resilient mounting, the first shell other end is slidably connected with the second shell other end by shell door, the first shell It is equipped with the first semicircular part in vivo, is equipped with the second semicircular part in the second shell, the first shell and second shell are remote End inside is respectively equipped with shielded layer, and the pedestal is fixed with cam gear；

The cam gear includes motor, motor fixed setting on the base, the motor power output end with turn Axis one end is fixedly connected, and the shaft other end is fixedly connected with cam, and the cam face is pears type.

2. a kind of encoder shield shell according to claim 1, which is characterized in that the resilient mounting is stretched including first Contracting bar, first telescopic rod one end are fixedly connected with second shell, and the first telescopic rod other end and movable plate one end are solid Fixed connection, is fixedly connected respectively with the first both ends of the spring between first telescopic rod and movable plate, sets in the first shell There is telescopic cavity, the movable plate can be movable in the telescopic cavity, and the movable plate other end is fixed with second telescopic rod one end Connection, the second telescopic rod other end is fixedly connected with telescopic cavity, respectively with the between second telescopic rod and movable plate Two both ends of the spring are fixedly connected.

3. a kind of encoder shield shell according to claim 1, which is characterized in that the cam gear quantity is 2.

4. a kind of encoder shield shell according to claim 1, which is characterized in that first half-round and described Waveform anti-skid device is equipped in two half-rounds.

5. a kind of encoder shield shell according to claim 1, which is characterized in that be equipped with conductive bubble in the shell door Cotton.

6. a kind of encoder shield shell according to claim 1, which is characterized in that the shielded layer is 3 layers.

7. a kind of encoder shield shell according to claim 1, which is characterized in that the conductive bubble of filling in the shielded layer It is at least one kind of in cotton, copper foil and alclad sheet.