CN220018549U

CN220018549U - Multi-turn encoder

Info

Publication number: CN220018549U
Application number: CN202223604338.7U
Authority: CN
Inventors: 叶义青
Original assignee: Suzhou Chengke Automatic Control Equipment Co ltd
Current assignee: Suzhou Chengke Automatic Control Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-11-14
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a multi-turn encoder comprising: the transmission mechanism comprises a plurality of gears meshed with each other, the magnetic parts are arranged on the gear disc, and the magnetic parts are driven to rotate through cascade gear transmission, so that electromagnetic induction occurs between the magnetic parts and the chip; the novel multi-turn encoder is connected with the driving wheel and the driven wheel in a gear meshing way, is simple in structure, convenient to install and easy to maintain and replace, and magnetic steel on the driven wheel is driven by the gear to slowly rotate to react with the magneto-electricity sensing chip, so that the functional requirements of small turns of the multi-turn encoder can be met more accurately.

Description

Multi-turn encoder

Technical Field

The utility model relates to the technical field of encoders, in particular to a multi-turn encoder.

Background

In order to achieve the requirement of the number of turns, the photoelectric sensor or the magnetic angle sensor is matched with a circuit for transmitting electric signal pulses to detect the rotation angle corresponding to the small number of turns, the built-in circuit is complex and easy to break, elements are arranged on a circuit board for welding, the size is large, and the encoder is difficult to detach and maintain and inconvenient to install due to the sealing requirement of the encoder.

Disclosure of Invention

In view of the above-mentioned problems in the prior art, a novel multi-turn encoder is now provided,

the specific technical scheme is as follows:

a novel multi-turn encoder is designed, comprising: the magnetic component is installed on the gear disc, and the magnetic component is driven to rotate through cascade gear transmission, so that electromagnetic induction occurs between the magnetic component and the chip.

Preferably, the plurality of gears meshed with each other comprise a driving wheel and a driven wheel, and the widths of the driving wheel and the driven wheel are the same.

Preferably, the driving wheel is axially sleeved with a rotating shaft, and the rotating shaft and an output shaft of the driving device keep the same axis.

Preferably, the magnetic component is magnetic steel fixedly installed on the central shaft of the driven wheel.

Preferably, the length of the central shaft is greater than the width of the wheel disc of the driven wheel, and an axial groove is formed in the central shaft.

Preferably, the circuit board is further included, the chip is fixedly installed on the circuit board, and the chip is a magneto-electric sensing chip.

Preferably, the driven wheel is disposed in parallel with the circuit board.

Preferably, the magneto-electric sensing chip and the magnetic steel are kept in the same axis and are placed oppositely.

Preferably, the pitch circle diameter of the driving wheel is smaller than the pitch circle diameter of the driven wheel.

Preferably, the tooth width of the driving wheel is slightly wider than that of the driven wheel.

The technical scheme has the following advantages or beneficial effects:

the novel multi-turn encoder is connected with the driving wheel and the driven wheel in a gear meshing way, is simple in structure, convenient to install and easy to maintain and replace, and magnetic steel on the driven wheel is driven by the gear to slowly rotate to react with the magneto-electricity sensing chip, so that the functional requirements of small turns of the multi-turn encoder can be met more accurately.

Drawings

FIG. 1 is a block diagram of a multi-turn encoder according to the present utility model;

fig. 2 is a schematic diagram of a multi-turn encoder according to the present utility model.

Legend description:

1 driving wheel, 2 driven wheel, 3 magneto-electricity sensing chip, 4 magnet steel, 5 rotation axis, 6 circuit board.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

Referring to fig. 1-2, a multi-turn encoder includes: the magnetic component is arranged on the gear disc and is driven to rotate through cascade gear transmission, so that electromagnetic induction occurs between the magnetic component and the chip.

The gears meshed with each other comprise a driving wheel 1 and a driven wheel 2, and the widths of the driving wheel 1 and the driven wheel 2 are the same.

The driving wheel 1 is axially sleeved with the rotating shaft 5, and the rotating shaft 5 and the output shaft of the driving device keep the same axis.

The magnetic component is a magnetic steel 4 fixedly arranged on the central shaft of the driven wheel 2.

The length of the central shaft is larger than the width of the wheel disc of the driven wheel 2, and an axial groove is formed in the central shaft.

The circuit board 6 is fixedly arranged on the circuit board 6, and the chip is the magneto-electricity sensing chip 3.

The driven wheel 2 is placed in opposite parallel with the wiring board 6.

The magneto-electric sensing chip 3 and the magnetic steel 4 are kept in the same axis and oppositely placed.

The pitch circle diameter of the driving wheel 1 is smaller than that of the driven wheel 2, the pitch circle diameter of the driven wheel 2 can be set to be 3 times of that of the driving wheel 1, the rotation of the rotating shaft 5 drives the driving wheel 1 to synchronously rotate, so that the driven wheel 2 is driven to slowly rotate, and the main shaft only rotates for 1 circle when the driven shaft rotates for 3 circles; the smooth and accurate action of gear engagement of the driving wheel 1 and the driven wheel 2 is achieved, so that the magnetic steel 4 on the driven wheel 2 rotates slowly, and further the functional requirement of small turns of the multi-turn encoder can be met more accurately.

The tooth width of the driving wheel 1 is slightly wider than that of the driven wheel 2, the force born by the pinion and the large gear are the same in size and the same in moment, the torsion born by the pinion is larger, the bearing capacity is relatively low, and the bearable load strength can be properly improved by enlarging the width of the pinion for safety.

Working principle: referring to fig. 1-2, the diameter of the driven wheel 2 is 3 times that of the driving wheel 1, and the rotation of the rotating shaft 5 drives the driving wheel 1 to synchronously rotate, so that the driven wheel 2 is driven to slowly rotate, and when the driven shaft rotates for 3 circles, the main shaft rotates for 1 circle; the magnetic steel 4 on the driven wheel 2 rotates slowly and reacts with the magneto-electric sensing chip 3, so that the functional requirement of small turns of the multi-turn encoder can be met more accurately.

The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.

Claims

1. A multi-turn encoder, characterized by: comprising the following steps: the magnetic component is arranged on the gear disc and driven to rotate through cascade gear transmission, so that electromagnetic induction occurs between the magnetic component and the chip.

2. A multi-turn encoder as claimed in claim 1, wherein: the gears meshed with each other comprise a driving wheel (1) and a driven wheel (2), and the widths of the driving wheel (1) and the wheel discs of the driven wheel (2) are the same.

3. A multi-turn encoder as claimed in claim 2, wherein: the driving wheel (1) is axially sleeved with the rotating shaft (5), and the rotating shaft (5) and an output shaft of the driving device keep the same axis.

4. A multi-turn encoder as claimed in claim 2, wherein: the magnetic component is a magnetic steel (4) fixedly arranged on the central shaft of the driven wheel (2).

5. A multi-turn encoder as defined in claim 4, wherein: the length of the central shaft is larger than the width of the wheel disc of the driven wheel (2), and an axial groove is formed in the central shaft.

6. A multi-turn encoder as defined in claim 4, wherein: the circuit board (6) is fixedly arranged on the circuit board (6), and the chip is a magneto-electric sensing chip (3).

7. A multi-turn encoder as defined in claim 6, wherein: the driven wheel (2) and the circuit board (6) are arranged in parallel relatively.

8. A multi-turn encoder as defined in claim 6, wherein: the magneto-electric sensing chip (3) and the magnetic steel (4) are kept in the same axis and are placed oppositely.

9. A multi-turn encoder as claimed in claim 2, wherein: the pitch circle diameter of the driving wheel (1) is smaller than that of the driven wheel (2).

10. A multi-turn encoder as claimed in claim 9, wherein: the tooth width of the driving wheel (1) is slightly wider than that of the driven wheel (2).