CN218297032U

CN218297032U - Horseshoe-shaped magnetic induction switch

Info

Publication number: CN218297032U
Application number: CN202222875850.9U
Authority: CN
Inventors: 马迪炜
Original assignee: Stark Industrial Automation Zhejiang Co ltd
Current assignee: Stark Industrial Automation Zhejiang Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-13
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a horseshoe-shaped magnetic induction switch, which adopts the technical scheme that the horseshoe-shaped magnetic induction switch comprises a controller and a rotating head, wherein one side of the controller is provided with a horseshoe-shaped groove, the rotating head is collected at the inner side of the groove, an indicator mark is arranged on the rotating head, a magnet is also arranged in the rotating head, and the N pole of the magnet is arranged in the same direction as the arrow head of the indicator mark; a magnetic sensing element is arranged in the controller, and the magnetic sensing element is matched with the magnet and used for sensing the magnetic field generated by the magnet; still be provided with control circuit in the controller, control circuit is including single chip module and communication module, single chip module and magnetic sensing element electric connection to can feed back information to the host computer through communication module, the utility model discloses a magnetism is felt the principle and is detected the feedback to pneumatic actuator's displacement volume, does not have wearing and tearing, and life is longer, and inside magnetism is felt simple structure, and the cost is lower.

Description

Horseshoe-shaped magnetic induction switch

Technical Field

The utility model relates to a switch technical field is felt to magnetism, and it relates to a shape of a hoof magnetism more specifically feels switch.

Background

The pneumatic valve actuator is used as an automatic driving device, is driven by an air source, has longer service life than an electric actuator, is relatively lower in cost and is widely used at present; with the arrival of 4.0 industry, various industries have entered the intelligent manufacturing industry, and various automatic control and driving devices have been widely applied to various industries to replace the original traditional manual operation, wherein, to accurately control the pneumatic valve actuator, an important part is to detect the angular displacement of the rotating shaft in the driving part of the pneumatic valve actuator, and the accurate control of the pneumatic valve actuator can be realized only under the condition of ensuring the accuracy of the fed-back angular displacement.

The existing position sensing technology applied to pneumatic valve actuators generally adopts a mechanical feedback sensing mode, for example, a rotary rheostat is used together with a gear set; the angular displacement of the actuator drives the gear set to rotate and drives the rotary rheostat to rotate, the angular displacement of the current actuator (namely, the opening valve position of the valve) is determined according to the resistance value of the rheostat, the resistance change of the rheostat can well detect the rotation of the rotating shaft, but due to the reason of the rotary rheostat, abrasion easily occurs between a contact and a resistance ring after long-time use, the service life is short, a magnetic sensing switch adopting a magnetic induction principle is also arranged in the prior art, abrasion cannot be generated, the service life is long, a hall electromagnetic sensing technology is generally adopted, the cost is high, the magnetic sensing switch is mainly applied to a scene of accurately controlling the valve position, in an actual common use scene, the control on the valve position only needs to know whether the valve position is closed, opened or half-opened, and in such a situation, the high-cost magnetic sensing switch adopting the hall electromagnetic sensing technology is not necessary, and therefore, the magnetic sensing switch with low cost needs to be provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a switch is felt to shape of a hoof magnetism, the displacement volume of feeling the principle to pneumatic actuator through magnetism detects the feedback, does not have wearing and tearing, and life is longer, and simple structure is felt to inside magnetism, and the cost is lower.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a switch is felt to shape of a hoof magnetism, includes controller and rotating head, its characterized in that: a U-shaped groove is formed in one side of the controller, the rotating head is accommodated in the groove, an indicator is arranged on the rotating head, a magnet is further arranged in the rotating head, and the N pole of the magnet is arranged in the same direction as the arrow of the indicator; a magnetic sensing element is arranged in the controller, and the magnetic sensing element is matched with the magnet and used for sensing the magnetic field generated by the magnet; the controller is also internally provided with a control circuit, the control circuit comprises a singlechip module and a communication module, and the singlechip module is electrically connected with the magnetic sensing element and can feed information back to an upper computer through the communication module.

The utility model discloses further set up to: the magneto-sensitive element comprises a plurality of magneto-sensitive resistors which are arranged at equal intervals and arranged along the arc-shaped surface of the groove.

The utility model discloses further set up to: the rotary head and the controller are both fixedly arranged on an external pneumatic actuator, the rotary head is arranged on a rotary shaft of the pneumatic actuator, and the controller is arranged on a shell of the pneumatic actuator.

The utility model discloses further set up to: the controller is provided with an angle indicating ring, the angle indicating ring is arranged on the peripheral side of the groove, and the indicating marks are matched with the angle indicating ring.

The utility model discloses further set up to: the rotating head is sleeved on a rotating shaft of the pneumatic actuator and is fastened through a screw, the indicator is fixedly installed on the rotating head, and the controller is fixedly connected to a shell of the external pneumatic actuator through a screw.

To sum up, the utility model discloses following beneficial effect has:

the utility model discloses a prior art is compared, controller and rotating head have been set up, the recess of horseshoe-shaped structure has been set up on the controller, the rotating head rotates in the recess under the drive of pneumatic actuator's rotation axis, the pivoted in-process does not contact with the lateral wall of recess, make both can not take place wearing and tearing, long service life, and magnet in the rotating head is at the pivoted in-process, magnetic field intensity and direction change, the change of resistance value of the magneto sensitive element in the influence controller, the orientation of the magnetic field of magnet in the rotating head is derived according to the change of resistance value to the singlechip chip among the control circuit, feed back data to backstage upper computer, and then make things convenient for the personnel to pass through the control of computer to pneumatic actuator, the utility model discloses a lower magneto resistance cooperation magnet of cost detects the valve position, the magneto sensitive switch itself does not produce wearing and tearing, long service life.

Drawings

FIG. 1 is a schematic view of the external structure of the present embodiment;

FIG. 2 is a schematic diagram of the internal structure of the spin head and the controller according to the present embodiment;

FIG. 3 is a schematic diagram of the circuit connection structure of the magnetic sensor device of this embodiment;

fig. 4 is a block diagram of the signal transmission flow of the present embodiment.

Reference numerals: 1. a controller; 2. rotating the head; 3. a groove; 4. an indicator mark; 5. a magnet; 6. a magneto-sensitive element; 601. a magneto-resistor; 7. a single chip module; 8. an angle indicating ring; 10. a communication module; 11. an actuator body; 12. a rotating shaft; 13. a screw; 14. a circuit board; 15. an electric wire.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a shape of a hoof magnetic induction switch, as shown in fig. 1-4, including controller 1 and rotating head 2, one side of controller 1 is provided with U-shaped recess 3, and rotating head 2 is received in the inboard of recess 3, and when rotating head 2 was in the pivoted like this, the distance between inside magnet 5 of rotating head 2 and controller 1 remained unchangeable, is provided with indicator 4 on rotating head 2, still sets up magnet 5 in rotating head 2, and the arrow syntropy setting of "N" utmost point orientation and indicator 4 of magnet 5. When the magnetic controller is used, the N pole of the magnet 5 emits a magnetic field outwards and returns from the S pole of the magnet 5, the generated magnetic field can pass through the magnetic sensing element 6 arranged in the controller 1, the magnetic sensing element 6 comprises a plurality of magnetic sensing resistors 601 which are arranged at equal intervals and arranged along the arc-shaped surface of the groove 3, and the magnetic sensing resistors 601 can be semiconductor magnetic sensing resistors.

Further, taking fig. 2 as an example, three magnetoresistors 601 for sensing the magnetic field of the magnet 5 are arranged on the circuit board 14 in the control head 1, when the "N" pole of the magnet 5 is aligned to one of the magnetoresistors 601, the resistance of the magnetoresistor 601 is the largest, after being recognized by the single chip module, it can be determined which magnetoresistor 601 the "N" pole of the magnet of the rotating head and the indicator face at that time, that is, the rotation amount of the rotating shaft is determined, that is, the current valve position is determined, the specific circuit structure can refer to fig. 3 and fig. 4, wherein the magnetoresistor distribution manner of fig. 3 is only the display of the circuit structure, and is not the actual positional relationship of the three magnetoresistors, the three magnetoresistors are respectively connected to the input end of the analog-to-digital converter, the resistance values of the respective magnetoresistors are returned to the single chip through the analog-digital converter, the resistance values of the respective magnetoresistors are returned to an upper computer through the single chip and the communication module, wherein the required single chip program (acquisition of the single chip) is a common one in the prior art, the single chip program is not a completely open-chip, the single chip module, but the single chip module can be used by a power supply, and the background power supply module can be converted into a power supply control circuit for opening or a power supply for a power supply, and a power supply for a power supply.

Furthermore, the rotating head 2 and the controller 1 are both fixedly mounted on an external pneumatic actuator, the rotating head 2 is mounted on a rotating shaft 12 of the actuator body 11, the controller 1 is mounted on a housing of the actuator body, and the pneumatic actuator is a device for remotely controlling the opening and closing of the valve, so that the valve position of the valve can be detected by fixedly mounting the rotating head 2 and the controller 1 on the actuator body 11.

Furthermore, an angle indicating ring 8 is arranged on the controller 1, the angle indicating ring 8 is arranged on the peripheral side of the groove 3, the indicator 4 is matched with the angle indicating ring 8, the angle indicating ring 8 is convenient for a detection person to observe on site, and the position of the angle indicating ring 8 aligned with the arrow of the indicator 4 is the current valve position of the valve.

Furthermore, the rotating head 2 is sleeved on the rotating shaft of the pneumatic actuator and is fastened by a screw 13, the indicator 4 is fixedly installed on the rotating head 2, and the controller 1 is fixedly connected to the outer shell of the pneumatic actuator through the screw.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a switch is felt to shape of a hoof magnetism, includes controller (1) and rotating head (2), its characterized in that: a U-shaped groove (3) is formed in one side of the controller (1), the rotating head (2) is accommodated inside the groove (3), an indicator (4) is arranged on the rotating head (2), a magnet (5) is further arranged in the rotating head (2), and the N pole of the magnet (5) is arranged in the same direction as the arrow of the indicator (4); a magnetic sensing element (6) is arranged in the controller (1), and the magnetic sensing element (6) is matched with the magnet (5) and used for sensing a magnetic field generated by the magnet (5); the controller (1) is also internally provided with a control circuit, the control circuit comprises a single chip microcomputer module (7) and a communication module (10), the single chip microcomputer module (7) is electrically connected with the magnetic sensing element (6), and information can be fed back to an upper computer through the communication module (10).

2. A horseshoe magnetic inductive switch according to claim 1, wherein: the magneto-sensitive element (6) comprises a plurality of magneto-sensitive resistors (601) which are arranged, and the magneto-sensitive resistors (601) are arranged at equal intervals and along the arc-shaped surface of the groove (3).

3. A horseshoe magnetic inductive switch according to claim 1, wherein: the rotary head (2) and the controller (1) are both fixedly mounted on an external pneumatic actuator, the rotary head (2) is mounted on a rotary shaft of the pneumatic actuator, and the controller (1) is mounted on a shell of the pneumatic actuator.

4. A horseshoe magnetic inductive switch according to claim 1, wherein: the angle indicating device is characterized in that an angle indicating ring (8) is arranged on the controller (1), the angle indicating ring (8) is arranged on the peripheral side of the groove (3), and the indicating mark (4) is matched with the angle indicating ring (8).

5. A horseshoe magnetic inductive switch according to claim 3, wherein: the rotary head (2) is sleeved on a rotary shaft of the pneumatic actuator and is fastened through a screw, the indicator (4) is fixedly installed on the rotary head (2), and the controller (1) is fixedly connected to a shell of the external pneumatic actuator through a screw.