CN212646905U

CN212646905U - Calibrating device for relay

Info

Publication number: CN212646905U
Application number: CN202020721716.1U
Authority: CN
Inventors: 余胜飞; 李国涛; 胡志敏
Original assignee: Huangshan Wangrong Electronics Co ltd
Current assignee: Huangshan Wangrong Electronics Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2021-03-02
Anticipated expiration: 2030-05-06

Abstract

The utility model belongs to the relay field specifically discloses a calibrating device for relay, including the relay body, the middle part is provided with a screw rod in the relay body, and the screw rod is gone up the screw thread adaptation cover and is equipped with the removal guide block; a guide plate is arranged at the top in the relay body, a fixed seat is arranged at the bottom in the electrical appliance body, a plurality of wiring output terminals are embedded into the fixed seat at equal intervals, one end of each wiring output terminal inserted into the relay body is connected with a conducting contact through a first connecting guide rod, and the lower end of the movable guide block is connected with a switching contact which is matched and attached with each conducting contact through a second connecting guide rod; the upper part of the conducting contact is cut to form a pressing part and a supporting part; and a displacement sensor is arranged on the movable guide block, each wiring output terminal is electrically connected with the control display module respectively, and the control end of the stepping motor is connected with the speed regulator. The utility model discloses the switching contact closely contacts when being connected with the break-over contact, but the delay deviation of automated inspection relay and carry out the calibration.

Description

Calibrating device for relay

Technical Field

The utility model relates to a relevant field of relay specifically is a calibrating device for relay.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

The time relay can be divided into an on-time delay type time relay and an off-time delay type time relay according to the delay type, and the contact action mode of the time relay can be divided into instantaneous action and delay action. After the power-on time delay type time relay is powered on, time delay is started immediately, after the set time delay time is reached, the control unit outputs a control signal, the contact state of the relay is switched, and the contact state is restored immediately after the relay is powered off. After the power-off delay type time relay is powered on, the contact state of the relay is immediately switched, the relay immediately starts to delay after being powered off, and after the set delay time is reached, the control unit outputs a control signal, so that the contact state of the relay is recovered.

After the existing relay is used for a long time, the contact of the existing relay is easy to have poor contact and delay deviation, and the circuit conversion precision of the relay is influenced. Therefore, the relay needs to rely on external test equipment for detection and calibration, but the relay cannot find errors in time and automatically calibrate, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a calibrating device for relay to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a calibration device for a relay comprises a relay body, wherein a screw rod is arranged in the middle of the inside of the relay body, one end of the screw rod is rotatably connected with the inner wall of the relay body through a bearing seat, the other end of the screw rod is connected with the output end of a stepping motor correspondingly fixed on the inner wall of the relay body, and a movable guide block is sleeved on the screw rod in a thread fit manner; a guide plate is arranged on the top in the relay body along the direction parallel to the screw rod, and a wiring input terminal connected with a power supply line connected with the guide plate is arranged on the top of the relay body; a fixed seat is arranged at the bottom in the relay body along the direction parallel to the screw rod, a plurality of wiring output terminals for leading out current are embedded in the fixed seat at equal intervals, one end of each wiring output terminal inserted into the relay body is connected with a conducting contact through a first connecting guide rod, and the lower end of the movable guide block is connected with a switching contact which is matched and attached with each conducting contact through a second connecting guide rod; the upper part of the conducting contact is cut to form a pressing part at the upper end and a supporting part at the lower end; and a displacement sensor is arranged on the movable guide block, each wiring output terminal is electrically connected with the control display module respectively, and the control end of the stepping motor is connected with the speed regulator.

Preferably, the bottom surface of the guide plate is provided with a guide chute with an opening facing the screw, and the upper end of the movable guide block is connected with a limiting guide rod embedded in the guide chute to slide.

Preferably, the fixing seat is provided with a fastening plate for reinforcing and fixing each wiring output terminal, and the fixing seat and the fastening plate are both made of insulating materials.

Preferably, the number of the wiring output terminals is three, the wiring output terminal in the middle is connected with the circuit breaker, and the wiring output terminals on the two sides are connected to different switching circuits.

Preferably, a plurality of buffer grooves with upward openings are formed in the supporting portion at equal intervals, a plurality of guide rods inserted into the buffer grooves are connected to positions corresponding to the bottom surface of the pressing portion, and compression springs are sleeved on the guide rods between the pressing portion and the supporting portion.

Preferably, the whole of the conducting contact and the switching contact are both spherical structures, and the opposite ends of the conducting contact and the switching contact are respectively cut to form horizontal connecting surfaces.

Preferably, the control display module is used for displaying the time delay switching time of the switching contact and each conducting contact, and the displacement sensor, the control display module and the control end of the speed regulator are respectively connected with the integrated master control panel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model uses the linear thread drive to switch the contact between the contact and each conducting contact, the conducting contact is divided into the upper compressing part and the lower supporting part, the compressing part and the supporting part are connected by the compression spring, so that the contact is tight when the switching contact is connected with the conducting contact, and the good contact state is kept; meanwhile, the guide rod on the bottom surface of the pressing part is inserted into the buffer groove of the supporting part, so that the stability of the pressing part is ensured, the position deviation is avoided, and the contact precision is high.

2. The utility model discloses a control display module real-time supervision switching contact switching's time delay switching time to compare with system setting time, and with signal transmission to integrated total control panel, when surpassing and setting for the deviation scope, integrated total control panel triggers the speed regulator and adjusts step motor's rotational speed, changes the removal speed of removal guide block, thereby the time delay switching time of adjustment switching contact makes it be in setting for the within range; the delay deviation of the relay can be automatically detected and calibrated, and the use is convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of a specific structure of the on contact according to the present invention.

In the figure: 1. a relay body; 2. a screw; 3. a bearing seat; 4. a stepping motor; 5. moving the guide block; 6. a guide plate; 7. a guide chute; 8. a limiting guide rod; 9. a fixed seat; 10. a wiring output terminal; 11. a fastening plate; 12. a first connecting guide rod; 13. conducting the contact; 14. a second connecting guide rod; 15. a switching contact; 16. a pressing part; 17. a support portion; 18. a buffer tank; 19. a guide rod; 20. a compression spring; 21. a connecting surface; 22. a displacement sensor; 23. controlling a display module; 24. a speed regulator; 25. and a wiring input terminal.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a calibrating device for a relay comprises a relay body 1, wherein a screw rod 2 is arranged in the middle of the inside of the relay body 1, one end of the screw rod 2 is rotatably connected with the inner wall of the relay body 1 through a bearing seat 3, the other end of the screw rod is connected with the output end of a stepping motor 4 correspondingly fixed on the inner wall of the relay body 1, and a movable guide block 5 is sleeved on the screw rod 2 in a thread matching manner; a guide plate 6 is arranged at the top in the relay body 1 along the direction parallel to the screw rod 2, and a wiring input terminal 25 connected with a power supply line connected with the guide plate 6 is arranged at the top of the relay body 1; a fixed seat 9 is arranged at the bottom in the relay body 1 along the direction parallel to the screw rod 2, a plurality of wiring output terminals 10 for leading out current are embedded in the fixed seat 9 at equal intervals, one end of each wiring output terminal 10 inserted into the relay body 1 is connected with a conducting contact 13 through a first connecting guide rod 12, and the lower end of the movable guide block 5 is connected with a switching contact 15 which is matched and attached with each conducting contact 13 through a second connecting guide rod 14; the conductive contact 13 is formed by cutting the upper part to form a pressing part 16 at the upper end and a supporting part 17 at the lower end; the displacement sensor 22 is installed on the movable guide block 5, each wiring output terminal 10 is electrically connected with the control display module 23, and the control end of the stepping motor 4 is connected with the speed regulator 24.

Furthermore, the bottom surface of the guide plate 6 is provided with a guide chute 7 with an opening facing the screw rod 2, and the upper end of the movable guide block 5 is connected with a limit guide rod 8 embedded in the guide chute 7 and sliding.

Further, a fastening plate 11 for reinforcing and fixing each of the connection output terminals 10 is mounted on the fixing base 9, and both the fixing base 9 and the fastening plate 11 are made of an insulating material.

Furthermore, three wiring output terminals 10 are provided, the middle wiring output terminal 10 is connected with a circuit breaker, and the wiring output terminals 10 at two sides are connected to different switching circuits.

Furthermore, a plurality of buffer grooves 18 with upward openings are formed in the supporting portion 17 at equal intervals, a plurality of guide rods 19 inserted into the buffer grooves 18 are connected to positions corresponding to the bottom surface of the pressing portion 16, and compression springs 20 are sleeved on the guide rods 19 between the pressing portion 16 and the supporting portion 17.

Further, the conducting contact 13 and the switching contact 15 are both spherical structures as a whole, and the opposite ends of the two are respectively cut to form a horizontal connecting surface 21.

Further, the control display module 23 is configured to display the time delay switching time of the switching contact 15 and each conducting contact 13, and the control ends of the displacement sensor 22, the control display module 23, and the speed regulator 24 are respectively connected to the integrated general control panel.

The working principle is as follows: the integrated master control panel is connected with a server terminal and can be used for setting the deviation range of delay switching time of the switching contact 15 and each conducting contact 13 and connecting the wiring input terminal 25 and the wiring output terminal 10 with corresponding circuits outside, and the guide plate 6, the limiting guide rod 8, the movable guide block 5, the second connecting guide rod 14, the switching contact 15, the conducting contact 13 and the first connecting guide rod 12 are all made of conductor materials and are sequentially connected to form a conductive path between the wiring input terminal 25 and the wiring output terminal 10.

When the circuit is switched, the stepping motor 4 is started to drive the screw rod 2 to rotate, so that the movable guide block 5 moves, the connection switching of the switching contact 15 among the conducting contacts 13 is realized, and the displacement sensor 22 on the movable guide block 5 is used for detecting the translation distance of the movable guide block 5 and sending a moving signal to the integrated general control panel for accurately controlling the starting and stopping distance of the movable guide block 5; the conducting contact 13 is divided into an upper pressing part 16 and a lower supporting part 17, and the pressing part 16 and the supporting part 17 are connected through a compression spring 20, so that the switching contact 15 is tightly contacted when being connected with the conducting contact 13, and a good contact state is kept; meanwhile, the guide rod 19 on the bottom surface of the pressing part 16 is inserted into the buffer groove 18 of the supporting part 17, so that the stability of the pressing part 16 is ensured, the position deviation is avoided, and the contact precision is high.

The time delay switching time of the contact switching of the switching contact 15 is monitored in real time through the control display module 23, compared with the system set time, and a signal is sent to the integrated master control panel, when the time delay switching time exceeds the set deviation range, the integrated master control panel triggers the speed regulator 24 to regulate the rotating speed of the stepping motor 4, and the moving speed of the moving guide block 5 is changed, so that the time delay switching time of the switching contact 15 is adjusted to be within the set range; the delay deviation of the relay can be automatically detected and calibrated, and the use is convenient.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

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

1. A calibrating device for a relay is characterized by comprising a relay body (1), wherein a screw rod (2) is arranged in the middle of the inside of the relay body (1), one end of the screw rod (2) is rotatably connected with the inner wall of the relay body (1) through a bearing seat (3), the other end of the screw rod is connected with the output end of a stepping motor (4) correspondingly fixed on the inner wall of the relay body (1), and a movable guide block (5) is sleeved on the screw rod (2) in a threaded fit manner; a guide plate (6) is arranged on the top of the relay body (1) along the direction parallel to the screw rod (2), and a wiring input terminal (25) connected with a power supply line connected with the guide plate (6) is arranged on the top of the relay body (1); a fixed seat (9) is installed at the bottom in the relay body (1) along the direction parallel to the screw rod (2), a plurality of wiring output terminals (10) for current derivation are embedded in the fixed seat (9) at equal intervals, one end of each wiring output terminal (10) inserted into the relay body (1) is connected with a conducting contact (13) through a first connecting guide rod (12), and the lower end of the movable guide block (5) is connected with a switching contact (15) which is in fit joint with each conducting contact (13) through a second connecting guide rod (14); the conducting contact (13) is formed by cutting the upper part to form a pressing part (16) at the upper end and a supporting part (17) at the lower end; and a displacement sensor (22) is arranged on the movable guide block (5), each wiring output terminal (10) is electrically connected with a control display module (23), and the control end of the stepping motor (4) is connected with a speed regulator (24).

2. The relay calibration device according to claim 1, wherein: the bottom surface of the guide plate (6) is provided with a guide chute (7) with an opening facing the screw rod (2), and the upper end of the movable guide block (5) is connected with a limiting guide rod (8) which is embedded into the guide chute (7) and slides.

3. The relay calibration device according to claim 1, wherein: and the fixing seat (9) is provided with a fastening plate (11) for reinforcing and fixing each wiring output terminal (10), and the fixing seat (9) and the fastening plate (11) are both made of insulating materials.

4. The relay calibration device according to claim 1, wherein: the number of the wiring output terminals (10) is three, the wiring output terminal (10) in the middle is connected with the circuit breaker, and the wiring output terminals (10) on two sides are connected into different switching circuits.

5. The relay calibration device according to claim 1, wherein: a plurality of buffer grooves (18) with upward openings are formed in the supporting portion (17) at equal intervals, a plurality of guide rods (19) inserted into the buffer grooves (18) are connected to the corresponding positions of the bottom surface of the pressing portion (16), and compression springs (20) are sleeved on the guide rods (19) between the pressing portion (16) and the supporting portion (17).

6. The relay calibration device according to claim 1, wherein: the whole of the conducting contact (13) and the switching contact (15) are both spherical structures, and the opposite ends of the conducting contact and the switching contact are respectively cut to form a horizontal connecting surface (21).

7. The relay calibration device according to claim 1, wherein: the control display module (23) is used for displaying the time delay switching time of the switching contact (15) and each conducting contact (13), and the control ends of the displacement sensor (22), the control display module (23) and the speed regulator (24) are respectively connected with the integrated master control panel.