CN205537691U

CN205537691U - A upper bearing assembly structure for through -hole encoder

Info

Publication number: CN205537691U
Application number: CN201620034861.6U
Authority: CN
Inventors: 陶勇
Original assignee: Shanghai Ayan Industry System Co ltd
Current assignee: Shanghai Ayan Industry System Co ltd
Priority date: 2016-01-14
Filing date: 2016-01-14
Publication date: 2016-08-31
Anticipated expiration: 2026-01-14

Abstract

The utility model provides an upper bearing assembly structure for through -hole encoder, including shell, rotation axis, hollow code wheel and circuit board, be provided with the bearing in the outside of rotation axis, wherein, the upper portion of shell is passed through the flange and is linked to each other with the bearing, and the lower part of shell is direct continuous with the bearing, simultaneously, all be provided with groove structure in the inboard of flange and shell, and the inboard of flange and shell is fixed in to the outer lane of bearing through groove structure, in addition, be provided with the convex shoulder structure in the outside of rotation axis, and the inner circle of bearing is fixed in the outside of rotation axis through the convex shoulder structure, the outside of rotation axis then all is located as for hollow code wheel and circuit board. Owing to adopted above -mentioned technique, the utility model discloses the stability of encoder signal in can assurance work, simultaneously very big enhancement the antidetonation move with the ability of shocking resistance, improved the electric stability and the mechanical heavy load nature of structure promptly to satisfy the working property of encoder under heavily loaded environment, make the range of application of encoder more extensive.

Description

A kind of upper bearing (metal) for through hole encoder assembles structure

Technical field

This utility model relates to through hole encoder techniques field, particularly relates to a kind of for through hole encoder Bearing assembling structure.

Background technology

At present, existing through hole encoder uses the homonymy that two bearings are arranged on flange, and the rotation of through hole Rotating shaft only has one end mounted on bearings, the code-disc of the hollow shape of intermediate ends installation encoder, and the other end Unsettled；This kind of structure easily causes following problem during actually used:

One, the rotary shaft radial wobble of through hole, makes encoder code disc shake increase, causes jitter, Signal accuracy is poor.

Two, one end can only be had in the rotary shaft of through hole to have convex shoulder (if there is convex shoulder at two ends, it is impossible to install In bearing) so that resist axial float can only direction by the convex shoulder of rotary shaft, and another direction is only Can by the glue of rotary shaft and bearing inner race viscous and degree, service life it cannot be guaranteed that.

Utility model content

In order to solve the problems referred to above, this utility model provides a kind of upper bearing (metal) for through hole encoder to assemble knot Structure, it is ensured that the stablizing of code device signal in work, strengthens anti-vibration and shock proof simultaneously greatly Ability, thus meet encoder service behaviour under heavy duty environment so that the range of application of encoder is more Extensively.

Above-mentioned a kind of upper bearing (metal) for through hole encoder assembles structure, including shell, rotary shaft, hollow Code-disc and circuit board, the outside of described rotary shaft is provided with bearing；Wherein, the top of described shell is passed through Flange is connected with bearing, and the bottom of described shell is directly connected with bearing；The inner side of described flange and shell is equal Being provided with groove structure, the inner side of flange and shell is fixed on by groove structure in the outer ring of described bearing；Institute The outside stating rotary shaft is provided with convex shoulder structure, and the inner ring of described bearing is fixed on rotary shaft by convex shoulder structure Outside；Described hollow code-disc and circuit board are respectively positioned on the outside of rotary shaft.

In said structure, described circuit board fits in the inner side step surface of shell.

In said structure, the outside at described rotary shaft top is cased with retaining ring.

In said structure, the quantity of described bearing is 2.

Advantage of the present utility model and having the beneficial effects that: this utility model provides and a kind of encodes for through hole The upper bearing (metal) assembling structure of device, possesses advantages below:

One, electric stability；Encoder is high-accuracy signal feedback components, and the stability of signal is and essence Really property is to weigh the important parameter of encoder quality, and reliable and stable being rotated in of code-disc is played here to pass Important effect, this utility model can significantly improve the stability of encoder code disc；

Two, machinery heavy duty；This utility model can significantly improve shock resistance and the impact resistance of encoder, Thus improve the service life of encoder, the signal stabilization of encoder can also be improved simultaneously.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below, Accompanying drawing in description is only embodiments more of the present utility model, for those of ordinary skill in the art, On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of upper bearing (metal) assembling structure in this utility model.

In figure: 1, shell 2, rotary shaft 3, bearing 4, flange

5, retaining ring 6, circuit board 7, hollow code-disc

Detailed description of the invention

Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is further described.With Lower embodiment is only used for clearly illustrating the technical solution of the utility model, and can not limit this with this The protection domain of utility model.

As it is shown in figure 1, this utility model describes a kind of upper bearing (metal) for through hole encoder assembles structure, Including shell 1, rotary shaft 2, hollow code-disc 7 and circuit board 6, the outside of rotary shaft 2 is provided with 2 Individual bearing 3.

Wherein, the top of shell 1 is connected with bearing 3 by flange 4, and its underpart is then direct and bearing 3 It is connected；

Meanwhile, as shown in the a-quadrant in Fig. 1, it is provided with groove knot in the inner side of flange 4 and shell 1 Structure so that flange 4 and the inner side of shell 1 can be fixed on by this groove structure in the outer ring of bearing 3；

Additionally, as shown in the B region in Fig. 1, be provided with convex shoulder structure in the outside of rotary shaft 2 so that The inner ring of bearing 3 is fixed on the outside of rotary shaft 2 by this convex shoulder structure；And above-mentioned hollow code-disc 7 He Circuit board 6 is respectively positioned on the outside of rotary shaft 2, it is preferred that circuit board 6 fits in the inner side step of shell 1 Surface.

Further, the outside at rotary shaft 2 top in this utility model is also cased with retaining ring 5.

In this utility model, the principle of upper bearing (metal) assembling structure is as follows:

After flange 4 and shell 1 close and be screwed, whole rotary shaft 2 is just by two bearings 3 Inner ring blocks, and eliminates axial float, and the two ends of rotary shaft 2 have the screens of bearing 3 respectively, so also disappearing Except radial-play；Simultaneously as the most any further one end of rotary shaft 2 is vacant state, therefore can show The shock resistance of the enhanced encoder write and impact resistance.

Further, after the device for elimination of axial-and radial-play of whole rotary shaft 2 is eliminated, the stability of code-disc will Significantly improving, precision is consequently also strengthened, so the solid shafting outside through hole type encoder can appointing from through hole No matter meaning, while passing, passes from which side of through hole and fixes, the shock resistance of encoder both sides and shock resistance energy Power all as, too increase the installation multiformity of product so that range of application is more extensive.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all Within protection domain of the present utility model should be included in.

Claims

1. for a upper bearing (metal) assembling structure for through hole encoder, including shell, rotary shaft, hollow code-disc And circuit board, the outside of described rotary shaft is provided with bearing；It is characterized in that, the top of described shell leads to Crossing flange to be connected with bearing, the bottom of described shell is directly connected with bearing；Described flange and the inner side of shell Being provided with groove structure, the inner side of flange and shell is fixed on by groove structure in the outer ring of described bearing； The outside of described rotary shaft is provided with convex shoulder structure, and the inner ring of described bearing is fixed on rotation by convex shoulder structure The outside of axle；Described hollow code-disc and circuit board are respectively positioned on the outside of rotary shaft.

A kind of upper bearing (metal) for through hole encoder assembles structure, and its feature exists In, described circuit board fits in the inner side step surface of shell.

A kind of upper bearing (metal) for through hole encoder assembles structure, and its feature exists In, the outside at described rotary shaft top is cased with retaining ring.

A kind of upper bearing (metal) for through hole encoder assembles structure, and its feature exists In, the quantity of described bearing is 2.