CN218958738U

CN218958738U - Drum encoder arrangement structure

Info

Publication number: CN218958738U
Application number: CN202222677943.0U
Authority: CN
Inventors: 朱云舫; 季凯凯; 王振洲
Original assignee: Xingdesheng Technology Suzhou Co ltd
Current assignee: Xingdesheng Technology Suzhou Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-05-02
Anticipated expiration: 2032-10-11

Abstract

The utility model provides a cylinder encoder arrangement structure, includes cylinder, external rotor motor, encoder, external rotor motor are installed in the cylinder, the both ends of the stator axle of external rotor motor all extend outside the cylinder, roller cover A is installed to one end of cylinder, roller cover B is installed to the other end of cylinder, the encoder is arranged in roller cover A, and the magnetic ring of encoder and stator axle relative fixed connection, the coding unit of encoder is relative roller cover A fixed connection, roller cover A is relative cylinder fixed connection, through encoder and external rotor motor interval setting, has solved the influence of external rotor motor main magnetic field to the magnetic field that encoder magnetic ring produced when the motor works to influence the precision of encoder; secondly, the encoder is installed in an isolated manner with the motor, so that ventilation and heat dissipation of the encoder and the outer rotor motor are facilitated, and the service life of the encoder is prolonged; is beneficial to the overhaul and maintenance of the encoder.

Description

Drum encoder arrangement structure

Technical Field

The utility model relates to the technical field of rollers, in particular to a roller encoder arrangement structure.

Background

The electric roller is a novel driving device for arranging a motor inside the roller body. The device is mainly applied to fixed and movable belt conveyors, and replaces a traditional separation type driving device of a motor outside a driving roller due to the characteristics of low noise, good sealing performance, high transmission precision and the like.

In specific application, the electric roller belongs to a precise servo control system, so that the real-time rotation angle and the rotation speed of a motor are required to be precisely measured, but the traditional electric roller with the encoder is integrally arranged with the motor, and the encoder and the motor are packaged in the front and rear covers of the roller and the roller after assembly, so that the encoder and the motor are not convenient to mount and dismount; and when the two are operated, the mutual interference is large; the maintenance cost is higher, and simultaneously, the influence and the interference of the main magnetic field of the motor on the magnetic field of the magnetic ring of the encoder can influence the precision of the encoder, and the normal use of the encoder is influenced.

The prior patent discloses a detachable servo motor roller of an encoder, which comprises a roller and an outer rotor servo motor, wherein a magnetic ring of the encoder is attached outside a roller cover (a motor front end cover), and an encoding unit is fixed on a (stator) rotating shaft through an encoder bracket.

The prior patent of the utility model, the magnetic ring of the encoder is mounted in the roller cover (the front end cover of the motor), the encoder is attached to the motor, the ventilation and heat dissipation of the encoder and the motor are affected, the magnetic force of the magnetic ring of the encoder is easily weakened by heat generated during the operation of the motor, and the stability, the service life and the reliability of the encoder are reduced.

Disclosure of Invention

Aiming at the defects of the scheme, the utility model aims to provide a roller encoder arrangement structure which can not weaken the magnetic force of a magnetic ring when an outer rotor motor generates heat and prolong the service life of an encoder.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a cylinder encoder arrangement structure, includes cylinder, external rotor motor, encoder, external rotor motor are installed in the cylinder, the both ends of the stator axle of external rotor motor all extend outside the cylinder, roller closing cap A is installed to the one end of cylinder, roller closing cap B is installed to the other end of cylinder, the encoder is arranged in roller closing cap A, and the magnetic ring of encoder and the relative fixed connection of stator axle, the relative roller closing cap A fixed connection of the coding unit of encoder, roller closing cap A is relative cylinder fixed connection.

Further provided is that: the two ends of the roller sealing cover A are respectively connected with the stator shaft in a rotating way through a first bearing and a second bearing, and the roller sealing cover B is connected with the stator shaft in a rotating way through a third bearing.

Further provided is that: and the other end of the roller cover A, which is opposite to the outer rotor motor, is provided with an access hole, and the access hole is sealed with a rear cover A.

Further provided is that: the outer rotor of the outer rotor motor comprises a rotor core and a shell, wherein the rotor core is fixedly connected with the stator shaft, and the shell is fixedly connected with the roller;

one end of the shell extends to form a cavity, and the end part of the roller cover A is arranged in the cavity.

Further provided is that: the roller seal cover A is made of non-magnetic materials (such as aluminum alloy), the coding unit of the encoder is in interference fit with the roller seal cover A, the roller seal cover A is in interference fit with the shell, and the shell is fixed in interference fit with the roller.

Further provided is that: and a lead groove is formed in the circumferential surface of the stator shaft, close to the rotor core, and extends to the end part of the stator shaft, and a lead electrically connected with the rotor core passes through the lead groove.

By adopting the technical scheme, the encoder is arranged in the roller sealing cover A, one end of the shell extends to form a cavity to be in interference fit with the roller sealing cover A, and the encoder and the outer rotor motor are arranged at intervals, so that the encoder is not influenced by heat generated when the outer rotor motor works, and the magnetic force of the magnetic ring is not weakened; during the process of rotating the roller, the accuracy of encoder reading can be ensured; through encoder and motor isolation installation, be favorable to the ventilation heat dissipation of encoder and external rotor motor, improved the technical characteristics of encoder's life.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is an enlarged view of the area of FIG. 3A;

FIG. 5 is an enlarged view of the area of FIG. 3B;

fig. 6 is an enlarged view of the area of fig. 3C.

In the figure: 1. a wire; 2. a lead assembly; 31. a roller cover A; 32. a roller cover B; 41. a rear cover A; 42. a rear cover B; 4. a magnetic ring; 51. a first bearing; 52. a second bearing; 53. a third bearing; 6. a roller; 7. an outer rotor motor; 8. a housing; 9. a magnet; 10. a stator shaft; 11. a wire slot; 12. an encoder.

Detailed Description

It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

As shown in fig. 1 to 6, a drum encoder arrangement structure comprises a drum 6, an outer rotor motor 7 and an encoder 12, wherein the encoder 12 and the outer rotor motor 7 are installed in the drum 6, both ends of a stator shaft 10 of the outer rotor motor 7 extend out of the drum 6, a cover sleeve a31 is installed at one end of the drum 6, a cover sleeve B32 is installed at the other end of the drum 6, the encoder 12 is arranged in the cover sleeve a31, a magnetic ring B4 of the encoder 12 is fixedly connected with the stator shaft 10 relatively, an encoding unit of the encoder 12 is fixedly connected with the cover sleeve a31 relatively, and the cover sleeve a31 is fixedly connected with the drum 6 relatively.

The two ends of the cover sleeve A31 are respectively connected with the stator shaft 10 in a rotating way through a first bearing 51 and a second bearing 52, and the cover sleeve B32 is connected with the stator shaft 10 in a rotating way through a third bearing 53.

The other end of the sealing cover sleeve A31 opposite to the outer rotor motor 7 is provided with an access hole, and the access hole is packaged with a rear cover A41, so that the encoder 25 can be overhauled conveniently through the access hole. The outer rotor of the outer rotor motor 7 comprises a rotor core and a shell 8, the rotor core is fixedly connected with the stator shaft 10, and the shell 8 is fixedly connected with the roller 6; one end of the casing 8 extends to form a cavity, the end of the cover sleeve A31 is arranged in the cavity, synchronous rotation of the coding unit, the outer rotor and the roller 15 is guaranteed, and the structure is more compact.

The cover sleeve a31 is made of rubber material, the coding unit of the encoder 12 is in interference fit with the cover sleeve a31, the cover sleeve a31 is in interference fit with the casing 8, and the casing 8 is fixed in interference fit with the roller 6.

A lead groove 11 is formed in the circumferential surface of the stator shaft 10 near the rotor core, the lead groove 11 extends to the end of the stator shaft 10, and the lead wire 1 electrically connected with the rotor core passes through the lead groove 11.

The working principle of the roller encoder arrangement structure provided by the utility model is as follows:

the outer rotor motor 7 is started, the outer rotor motor 7 drives the roller 6 to rotate, then the encoder 12 starts to detect the rotating speed and the rotating angle of the outer rotor motor 7, in the rotating process, the stator shaft 10 is in a static state relative to the roller 6, the encoder 12 is arranged in the roller cover A31, the roller cover A31 is in interference fit with one end of the shell 8, which extends to form a cavity, so that the encoder 12 and the outer rotor motor 7 are arranged at intervals, and therefore, the magnetic force of the magnetic ring 4 of the encoder 12 is not influenced by heat generated when the outer rotor motor 7 works, the service life of the encoder 12 is prolonged, and the use flow of the whole roller encoder arrangement structure is provided.

By adopting the technical scheme, the roller encoder arrangement structure provided by the utility model has the following beneficial effects:

by installing the rear cover A41 at one end of the roller cover A31, the roller 6 is in a sealed state, the safety of the roller 6 during rotation is improved, the roller cover A31 is made of rubber materials, and the roller cover A31 is convenient to insulate heat, install and detach.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a cylinder encoder arrangement structure, includes cylinder (6), external rotor motor (7), encoder (12), outer rotor motor (7) are installed in cylinder (6), the both ends of stator shaft (10) of external rotor motor (7) all extend outside cylinder (6), characterized by: the novel roller is characterized in that a roller sealing cover A (31) is arranged at one end of the roller (6), a roller sealing cover B (32) is arranged at the other end of the roller (6), the encoder (12) is arranged in the roller sealing cover A (31), a magnetic ring (4) of the encoder (12) is fixedly connected with the stator shaft (10) relatively, a coding unit of the encoder (12) is fixedly connected with the roller sealing cover A (31) relatively, and the roller sealing cover A (31) is fixedly connected with the roller (6) relatively.

2. A drum encoder arrangement according to claim 1, characterized in that: the two ends of the roller sealing cover A (31) are respectively and rotatably connected with the stator shaft (10) through a first bearing (51) and a second bearing (52), and the roller sealing cover B (32) is rotatably connected with the stator shaft (10) through a third bearing (53).

3. A drum encoder arrangement according to claim 2, characterized in that: the other end of the roller cover A (31) opposite to the outer rotor motor (7) is provided with an access hole, and the access hole is sealed with a rear cover A (41).

4. A drum encoder arrangement according to claim 3, characterized in that: the outer rotor of the outer rotor motor (7) comprises a rotor core and a shell (8), wherein the rotor core is fixedly connected with the stator shaft (10), and the shell (8) is fixedly connected with the roller (6);

one end of the shell (8) extends to form a cavity, and one end of the roller cover A (31) is arranged in the cavity.

5. A drum encoder arrangement as claimed in claim 4, wherein: the roller sealing cover A (31) is made of rubber materials, the coding unit of the coder (12) is in interference fit with the roller sealing cover A (31), the roller sealing cover A (31) is in interference fit with the machine shell (8), and the machine shell (8) is fixed with the roller (6) in interference fit.

6. A drum encoder arrangement as claimed in claim 5, wherein: a lead groove (11) is formed in the circumferential surface of the stator shaft (10) close to the rotor core, the lead groove (11) extends to the end portion of the stator shaft (10), and a wire (1) electrically connected with the rotor core passes through the lead groove (11).