CN217930354U

CN217930354U - Magnetic encoder with shock-absorbing function

Info

Publication number: CN217930354U
Application number: CN202222283601.0U
Authority: CN
Inventors: 阮飞
Original assignee: Changzhou Samid Electromechanical Equipment Co ltd
Current assignee: Changzhou Samid Electromechanical Equipment Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-11-29
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a magnetic encoder with shock-absorbing function, which comprises an upper housing, lower casing, a sensor, be located the magnet of sensor top, the first pivot of being connected with magnet, a lid wherein for installing first pivot and covering magnet and sensor cage, a first gear of the coaxial fixed of first pivot, still be provided with one in the installation cavity with first gear engaged with second gear, a buffer board is connected through the elastic component to the subaerial of casing under second gear and the coaxial setting of a hollow second pivot, be provided with on the buffer board with first through-hole matched with second through-hole. The utility model discloses compare with traditional magnetic encoder, adopt the upper casing and the lower casing to fix sensor, first pivot, second pivot at the output of motor, can have higher structural stability. The lower shell is provided with a buffer pad connected with the elastic piece, and when the lower shell is installed on a clamp facing the motor, the buffer pad and the elastic piece can counteract the influence caused by the vibration of the motor.

Description

Magnetic encoder with shock-absorbing function

Technical Field

The utility model relates to an encoder field especially relates to a magnetic encoder with shock-absorbing function.

Background

An encoder is a device that compiles, converts signals or data into a form of signals that can be communicated, transmitted, and stored, and is a rotary transducer that converts rotational displacement into a series of digital pulse signals that can be used to control angular displacement. Rotary encoders are commonly used in motors to measure the angular velocity and displacement of the motor shaft.

In the industrial field, since the equipment/production line applied to the encoder involves various mechanical interactions, the encoder coaxially mounted with the motor is prone to displacement and data distortion due to vibration in the mechanical interaction process. And, current encoder is through fixing the one end at the output shaft through single support, and stability is relatively poor, easily receives the influence of motor vibrations. Thus, there is a need for an encoder that is resistant to vibration.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a magnetic encoder with shock-absorbing function.

In order to realize the purpose, the following technical scheme is adopted:

the utility model provides a magnetic encoder with shock-absorbing function, including the last casing of laminating each other with lower casing and go up the casing with the installation cavity of the formation between the casing down, set up the sensor in the installation cavity, be located the magnet of sensor top, with first pivot that magnet is connected, be used for the installation first pivot and general magnet with sensor cage covers lid wherein, a first coaxial fixed first gear of first pivot, still be provided with in the installation cavity one with first gear engaged with second gear, second gear and the coaxial setting of a hollow second pivot, the second pivot rotationally set up in go up the casing with down between the casing, go up the casing with all set up in on the casing under in second pivot complex first through-hole, go up the casing with all be provided with on the casing down and be used for fixing the mounting hole on motor fixture, the subaerial buffer board of connecting through the elastic component of casing down, be provided with on the buffer board with first through-hole matched with second through-hole.

Furthermore, the second rotating shaft is internally in a regular hexagon shape. The second pivot can cooperate with the output shaft of motor, when the output shaft of motor also sets up to the hexagon, can improve the stability of second pivot and motor output shaft.

Furthermore, the upper shell and the lower shell are internally provided with limiting grooves matched with the second rotating shaft. The second rotating shaft may also be stabilized in the upper and lower cases when the second rotating shaft is not connected to the motor.

Furthermore, be provided with the guide post in the upper casing, be provided with in the inferior valve body with guide post matched with guiding hole. The installation is convenient.

Furthermore, the guide post is an elastic telescopic post. The telescopic column is used for absorbing vibration energy generated by the motor.

Adopt above-mentioned scheme, the beneficial effects of the utility model are that:

this scheme reasonable in design, convenient to use, second pivot and motor coaxial arrangement are driven by the motor and are rotated, and then drive first gear, magnet and rotate, and the sensor alright in order to measure the rotational speed and the displacement of motor.

Compare with traditional magnetic encoder, adopt upper housing and lower casing to fix sensor, first pivot, second pivot at the output of motor, can have higher structural stability.

The lower shell is provided with a buffer pad connected with the elastic piece, and when the lower shell is installed on a clamp facing the motor, the buffer pad and the elastic piece can counteract the influence caused by the vibration of the motor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and 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 the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of the lower housing of FIG. 2 without the lower housing;

fig. 4 is a schematic structural view of fig. 3 without the first gear and the cover.

Wherein the figures identify the description:

1. an upper housing; 2. a lower housing; 3. a sensor; 4. a magnet; 5. a first rotating shaft; 6. a cover body; 7. a first gear; 8. a second gear; 9. a second rotating shaft; 10. a first through hole; 11. mounting holes; 12. a cushion pad; 13. an elastic member; 14. a second through hole; 15. a telescopic column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that the terms of orientation such as outside, inside and middle in the embodiments of the present invention are only relative concepts or reference the normal use state of the product, and should not be considered as limiting.

Referring to fig. 1 to 4, a magnetic encoder with a damping function includes an upper casing 1 and a lower casing 2 attached to each other and an installation cavity formed between the upper casing 1 and the lower casing 2, a sensor 3 is disposed in the installation cavity, a magnet 4 located above the sensor 3, a first rotating shaft 5 connected to the magnet 4, a cover 6 for installing the first rotating shaft 5 and covering the magnet 4 and the sensor 3, a first gear 7 is coaxially fixed to the first rotating shaft 5, a second gear 8 engaged with the first gear 7 is further disposed in the installation cavity, the second gear 8 is coaxially disposed with a hollow second rotating shaft 9, the second rotating shaft 9 is rotatably disposed between the upper casing 1 and the lower casing 2, a first through hole 10 matched with the second rotating shaft 9 is disposed on each of the upper casing 1 and the lower casing 2, an installation hole 11 for fixing on a motor fixture is disposed on each of the upper casing 1 and the lower casing 2, a buffer plate is connected to the ground of the lower casing 2 through an elastic member 13, and a second through hole 14 matched with the first through hole 10 is disposed on the buffer plate.

The second rotating shaft 9 is in a regular hexagonal shape. The second rotating shaft 9 can be matched with the output shaft of the motor, and when the output shaft of the motor is also arranged to be hexagonal, the stability of the second rotating shaft 9 and the output shaft of the motor can be improved.

The upper shell 1 and the lower shell 2 are both provided with a limit groove matched with the second rotating shaft 9. The second rotating shaft 9 may also be stabilized in the upper and

lower cases

1 and 2 when the second rotating shaft 9 is not connected to the motor.

A guide post is arranged in the upper shell 1, and a guide hole matched with the guide post is arranged in the lower shell 2. The installation is convenient.

The guide column is a telescopic column 15 with elasticity. The telescopic column 15 is used for absorbing shock energy generated from the motor.

The working principle is as follows: when the motor is installed, the first through hole 10 of the lower shell 2 penetrates through a rotating shaft of the motor, the installation hole 11 of the lower shell 2 is aligned to a hole position on a clamp of the motor, the second rotating shaft 9, the sensor 3, the magnet 4, the first rotating shaft 5 and the first gear 7 are sequentially installed, the upper shell 1 is covered, and then bolts penetrate through the installation hole 11 to fix the upper shell 1 and the lower shell 2 on the clamp of the motor. When the sensor works, the output shaft of the motor drives the second rotating shaft 9 to rotate, then the second gear 8 drives the first gear 7 to rotate, namely the magnet 4 rotates above the sensor 3, so that the sensor 3 generates corresponding voltage waveform change, and data such as the rotating speed, the displacement and the like of the motor are obtained through calculation. When the motor vibrates, the vibration is transmitted to the buffer cushion 12, when the buffer cushion 12 is made of flexible materials, part of energy is absorbed by the buffer cushion 12, and the rest is absorbed by the elastic piece 13 and the guide posts, so that the influence of the vibration on the sensor 3 is reduced.

this scheme reasonable in design, convenient to use, second pivot 9 and motor coaxial arrangement are driven by the motor and are rotated, and then drive first gear 7, magnet 4 and rotate, and sensor 3 alright with the rotational speed and the displacement that measure the motor.

Compared with the traditional magnetic encoder, the sensor 3, the first rotating shaft 5 and the second rotating shaft 9 are fixed at the output end of the motor by the upper shell 1 and the lower shell 2, and the magnetic encoder can have higher structural stability.

A buffer pad 12 connected with an elastic member 13 is provided on the lower case 2, and the buffer pad 12 and the elastic member 13 can counteract the influence of the vibration of the motor when the lower case 2 is mounted facing the jig of the motor.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a magnetic encoder with shock-absorbing function, its characterized in that, including the last casing of laminating each other with lower casing go up the casing with the installation cavity of formation between the casing down, set up the sensor in the installation cavity, be located the magnet of sensor top, with first pivot, the installation that is used for that magnet is connected first pivot and incite somebody to action magnet with sensor cage covers lid wherein, a first coaxial fixed gear of first pivot, still be provided with in the installation cavity one with first gear engaged with second gear, second gear and the coaxial setting of a hollow second pivot, the second pivot rotationally set up in go up the casing with down between the casing, go up the casing with all set up in on the casing down in the first through-hole of second pivot complex, go up the casing with all be provided with on the casing down and be used for fixing the mounting hole on the motor anchor clamps, the subaerial buffer board of connecting through the elastic component of casing down, be provided with on the buffer board with first through-hole matched with second through-hole.

2. The magnetic encoder according to claim 1, wherein the second shaft has a regular hexagonal shape.

3. The magnetic encoder with the shock-absorbing function as claimed in claim 1, wherein a limiting groove matched with the second shaft is formed in each of the upper housing and the lower housing.

4. The magnetic encoder with the shock-absorbing function as claimed in claim 1, wherein a guide post is provided in the upper housing, and a guide hole is provided in the lower housing to be engaged with the guide post.

5. The magnetic encoder according to claim 4, wherein the guide posts are elastic telescopic posts.