CN211783515U - Structural encoder - Google Patents

Abstract

The utility model relates to a structure encoder, its characterized in that: including main part, pivot, waterproof sheet metal, powerful magnet, casing, circuit board, water joint, GB/T276-94 deep groove ball bearing 62900, GB3452.1-920 type rubber seal constitute, pivot, powerful magnet, casing, circuit board belong to the known supporting product in market, main part, waterproof sheet metal, GB/T276-94 deep groove ball bearing 62900, GB3452.1-920 type rubber seal, water joint adopt the ripe accessory in market, wherein the cavity of main part central point position is used for through the fixed pivot of bearing, and the outer end of pivot is the usefulness of output connection, and a powerful magnet is fixed to the other end for the magnetism sensing chip on the supply circuit board detects the pivot and rotates. A layer of waterproof thin plate is arranged between the circuit board and the main body, an O-shaped sealing ring is arranged at the joint of the thin plate and the main body, a sealing ring is also arranged at the joint of the main body and the shell, and the output cable penetrates out through a waterproof joint on the shell to block the immersion of external gas and liquid.

Description

Structural encoder

Technical Field

The utility model relates to an accurate measurement device field specifically is a structure encoder.

Background

Angular encoders are widely used as angular displacement sensors. But is limited to special application occasions, such as underwater and explosion-proof environments. At present, the angular encoder used in the above environment is mostly realized by a shaft seal ring method. The rubber sealing ring and the rotating shaft have sliding friction, the resistance is large, and a small amount of harmful gas or liquid still enters the space of the cavity of the encoder along the gap between the rubber sealing ring and the rotating shaft under large pressure to influence the normal work of the encoder.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a structural encoder has solved and has belonged to sliding friction between rubber seal and pivot, and the resistance is big, still has a small amount of harmful gas or liquid to follow in the gap entering encoder cavity space between rubber seal and the pivot under big pressure, influences the normal work of encoder, not very durable technical problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the waterproof structure comprises a main body, a rotating shaft, a waterproof sheet and a waterproof joint, wherein the rotating shaft is arranged on the main body, the waterproof sheet is positioned on a shell, a circuit board and a GB3452.1-920 type rubber sealing ring;

preferably, there is a cavity between the main body and the shaft, and GB/T276-94 deep groove ball bearing 62900 is mounted in the cavity for fixing the shaft.

Preferably, the waterproof sheet is located between the circuit board and the powerful magnet.

Preferably, the GB3452.1-920 type rubber sealing ring is arranged in a gap of the cavity of the main body.

Preferably, the watertight connector is fixed to the housing.

Advantageous effects

The utility model provides a structure encoder. Possess following beneficial effect, this technical scheme provides one kind based on structure encoder device, this kind of device can be used to under water, explosion-proof environment, equipment is difficult to damage, equipment is comparatively cheap, simple effectual solved among the background art mentioned rubber seal and pivot belong to sliding friction, the resistance is big, still have a small amount of harmful gas or liquid to follow in the gap entering encoder cavity space between rubber seal and the pivot under big pressure, influence the normal work of encoder, not very durable technical problem.

Drawings

Fig. 1 is a schematic structural diagram of a structural encoder according to the present invention.

Fig. 2 is a schematic diagram of a cross-sectional structure of a structural encoder according to the present invention.

In the figure: 1-a body; 2-a rotating shaft; 3-waterproof sheet; 4-strong magnet; 5-a shell; 6-a circuit board; 7-waterproof joints; 8-GB/T276-94 deep groove ball bearing 62900; 9-GB3452.1-920 rubber seal ring;

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 work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a structural encoder.

Example (b): the scheme mainly includes: a main body-1, a rotating shaft-2, a waterproof sheet-3 shell-5, a circuit board-6, a GB3452.1-920 rubber sealing ring-9 and a waterproof joint-7, wherein the rotating shaft-2 is fixed on a cavity of the main body-1, and the waterproof sheet-1 is positioned between the circuit board-6 and the main body-1;

it should be noted that GB/T276-94 deep groove ball bearing 62900-8 can play a role in increasing the accuracy of the rotating speed when the rotating shaft-2 rotates;

the strong magnet-4 is positioned at the rear end of the rotating shaft-2, and the circuit board-6 is connected and installed with the induction end of the strong magnet-4.

The driving structure mainly comprises: the waterproof sheet-3 is positioned between the circuit board and the powerful magnet-4, and can prevent liquid and toxic gas from corroding the circuit board-4;

the GB3452.1-920 type rubber sealing ring-9 is arranged in a gap of a cavity of the main body-1, and can prevent liquid and toxic gas from entering the main body-1 to corrode an internal structure.

The waterproof connector 7 is fixed on the shell 5 to prevent liquid or toxic gas from entering the shell 5 to corrode the internal structure.

It should be noted that, when precision measurement is needed for the equipment, GB/T276-94 deep groove ball bearing 62900-8 plays a role of fixing when the rotating shaft-2 is controlled to move, compared with the traditional rubber seal ring drive, GB/T276-94 deep groove ball bearing 62900-8 has high rotation speed and stop speed, and the measured data is more accurate, but considering that the working environment of the structure encoder has some flammable and explosive conditions, and contacts with various liquids, a waterproof joint-7 is used for the interface of the fixed structure encoder, and a plurality of GB3452.1-920 type rubber seal rings-10 are arranged inside the surrounding casing to prevent toxic and harmful liquids and gases from entering the gap of the casing-5 to affect the measurement precision.

In the specific implementation process, the powerful magnet-4 is electrically connected with the circuit board-6.

In the specific implementation process, the waterproof sheet-3 is positioned between the circuit board-6 and the powerful magnet-4 and fixed, the powerful magnet transmits the rotation force data to the circuit board-6, and the waterproof sheet-3 can further protect the whole circuit structure.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A structure encoder comprises a main body (1), a rotating shaft (2) is arranged on the main body (1), a waterproof sheet (3) is positioned on a shell (5), a circuit board (6) and a GB3452.1-920 type rubber sealing ring (9), and a waterproof joint (7) is characterized in that the rotating shaft (2) is fixed on a cavity of the main body (1), the waterproof sheet (3) is positioned between the circuit board (6) and the main body (1), a rotating structure is arranged in the shell (5), and a strong magnet (4) is arranged behind the rotating shaft structure;

the rotating structure mainly comprises: GB/T276-94 deep groove ball bearing 62900(8), rotating shaft (2);

the strong magnet (4) is positioned at the rear end of the rotating shaft (2), and the circuit board (6) is connected with the induction end of the strong magnet (4).

2. A structural encoder according to claim 1, characterised in that there is a cavity between the main body (1) and the shaft (2) in which is mounted GB/T276-94 deep groove ball bearing 62900(8) for securing the shaft (2).

3. A structural encoder according to claim 1, characterised in that the water-resistant sheet (3) is located between the circuit board (6) and the powerful magnet (4).

4. A structural encoder according to claim 1, characterised in that the rubber sealing ring (9) of the GB3452.1-920 type is fitted in a gap in the cavity of the main body (1).

5. A structural encoder according to claim 1, characterised in that the watertight joint (7) is fixed to the housing (5).

Images