CN217406868U

CN217406868U - Analog output device based on DCS system

Info

Publication number: CN217406868U
Application number: CN202221245432.5U
Authority: CN
Inventors: 朱崇团; 王小东; 穆永松
Original assignee: Hangzhou Instrument Control Technology Co ltd
Current assignee: Hangzhou Instrument Control Technology Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-09-09
Anticipated expiration: 2032-05-20

Abstract

The utility model belongs to the field of analog output modules, in particular to an analog output device based on a DCS system, which comprises a bottom plate; the bottom plate is provided with a connecting block, the bottom plate is provided with a dismounting mechanism, and the connecting block is arranged on the bottom plate through the dismounting mechanism; through the structural design of dismouting mechanism, when the converter breaks down and needs to dismantle the maintenance, it drives the worm rotation to rotate the piece soon, worm drive worm wheel rotates, thereby rotation has been in the drive picture, at the cam rotation in-process, because the effect of first spring, the inserted block leaves the slot, can take off connecting block and converter body, during the installation, set up the connecting block through first constant head tank and first constant head tank piece, it drives the cam rotation to rotate the piece soon, the cam oppression inserted block is inserted and is established the slot and do not, spacing to the connecting block, accomplish the installation, the function of making things convenient for the dismouting converter fast has been realized, the inconvenient problem of carrying out the dismouting of present majority's converter has been solved.

Description

Analog quantity output device based on DCS system

Technical Field

The utility model relates to an analog output module field specifically is an analog output device based on DCS system.

Background

The DCS system is a multistage computer system which is composed of a process control stage and a process monitoring stage and takes a communication network as a link, the DCS system controls an output module through an analog quantity signal, and the output module comprises a frequency converter, an electromagnetic valve and other devices.

The frequency converter is an electric control device which applies frequency conversion technology and micro-electronic technology and controls the alternating current motor by changing the frequency mode of the working power supply of the motor, and the DCS system can realize the function of controlling various electric devices by controlling the frequency converter.

However, most of the existing frequency converters are inconvenient to disassemble and assemble, and when the frequency converters are in failure and need to be disassembled for maintenance, the disassembling and assembling operation is complicated; therefore, an analog quantity output device based on the DCS system is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate the not enough of prior art, the inconvenient problem of carrying out the dismouting of present most converter, the utility model provides an analog output device based on DCS system.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to an analog output device based on DCS system, which comprises a bottom plate; the bottom plate is provided with a connecting block, the bottom plate is provided with a dismounting mechanism, the connecting block is mounted on the bottom plate through the dismounting mechanism, the connecting block is fixedly connected with a frequency converter body, and the frequency converter body is provided with a ventilating plate;

the dismouting mechanism includes four first fixed plates of rigid coupling on the bottom plate, adjacent two rotate through the bearing between the first fixed plate and be connected with the pivot, the one end rigid coupling of pivot has the worm wheel, rotate through the bearing on the bottom plate and connect the worm, worm and worm wheel meshing, the one end rigid coupling of worm has the piece of revolving, the surperficial rigid coupling of pivot has the cam, the rigid coupling has four second fixed plates on the bottom plate, sliding insert on the second fixed plate and be equipped with T shape pole, the one end rigid coupling of T shape pole has first movable plate, the rigid coupling has first spring between first movable plate and the second fixed plate, first spring housing is in the outside of T shape pole, the rigid coupling has the inserted block on the first movable plate, the slot has been seted up on the connecting block, the inserted block is inserted and is established in the slot.

Preferably, be equipped with on the converter body and be used for carrying out spacing subassembly to the ventilating board, spacing subassembly includes the third fixed plate of rigid coupling on the converter body, it is equipped with two guide bars to slide to insert on the third fixed plate, the one end rigid coupling of guide bar has the connecting plate, the other end rigid coupling of guide bar has the second movable plate, the rigid coupling has the second spring between second movable plate and the third fixed plate, the second spring housing is established in the outside of guide bar, the rigid coupling has the connecting rod on the second movable plate, the rigid coupling has two racks on the connecting rod, it is connected with two rotation posts to rotate through the bearing on the converter body, the top rigid coupling of rotation post has the gear, wheel and rack toothing, the rigid coupling has the clamp plate on the rotation post, the clamp plate contacts with the ventilating board.

Preferably, four first positioning grooves are formed in the bottom plate, four first positioning blocks are fixedly connected to the connecting block, and the first positioning blocks are inserted into the first positioning grooves.

Preferably, a first round hole is formed in the second fixing plate, and the T-shaped rod penetrates through the first round hole in a sliding manner.

Preferably, four second positioning grooves are formed in the frequency converter body, four second positioning blocks are fixedly connected to the ventilation plate, and the second positioning blocks are inserted into the second positioning grooves.

Preferably, a second round hole is formed in the third fixing plate, and the guide rod penetrates through the second round hole in a sliding manner.

The utility model discloses an useful part lies in:

1. the utility model discloses a structural design of dismouting mechanism, when the converter breaks down and needs to dismantle the maintenance, the rotation revolves the piece and drives the worm rotation, worm drive worm wheel rotates, thereby drive the rotation in the picture, in the cam rotation process, because the effect of first spring, the inserted block leaves the slot, can take off connecting block and converter body, during the installation, set up the connecting block through first constant head tank and first locating piece, the rotation revolves the piece and drives the cam rotation, the cam oppresses the inserted block and inserts and establish in the slot, spacing to the connecting block, accomplish the installation, realized the function of quick convenient dismouting converter, solved the inconvenient problem of carrying out the dismouting of present most converters, improved the dismouting efficiency to the converter;

2. the utility model discloses a structural design of spacing subassembly, when having attached to the dust in the hole of ventilating board and needing to dismantle the clearance, the pulling connecting plate, the connecting plate drives rack motion, the rack drives the clamp plate and rotates, make the clamp plate leave the ventilating board, can take off the ventilating board, during the installation, the pulling connecting plate, set up the ventilating board through second constant head tank and second locating piece, loosen the connecting plate, under the effect of second spring, the clamp plate is pressed in the top of ventilating board, carry on spacingly to the ventilating board, accomplish the installation, the function of making things convenient for the dismouting ventilating board fast has been realized, the adaptability of converter has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 overall structure diagram according to a first embodiment;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the first embodiment;

FIG. 3 is a schematic structural diagram of a base plate according to the first embodiment;

FIG. 4 is a schematic structural diagram of a frequency converter body and a connecting block according to the first embodiment;

fig. 5 is a schematic structural view of a ventilation board according to the first embodiment;

fig. 6 is a schematic perspective view of the second embodiment.

In the figure: 1. a base plate; 2. connecting blocks; 3. a frequency converter body; 4. a ventilation board; 5. a first fixing plate; 6. a rotating shaft; 7. a worm gear; 8. a worm; 9. rotating the block; 10. a cam; 11. a second fixing plate; 12. a T-shaped rod; 13. a first moving plate; 14. a first spring; 15. inserting a block; 16. inserting slots; 17. a third fixing plate; 18. a guide bar; 19. a connecting plate; 20. a second moving plate; 21. a second spring; 22. a connecting rod; 23. a rack; 24. rotating the column; 25. a gear; 26. pressing a plate; 27. a first positioning groove; 28. a first positioning block; 29. a first circular hole; 30. a second positioning groove; 31. a second positioning block; 32. a second circular hole; 33. mounting a block; 34. and (7) mounting holes.

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.

Example one

Referring to fig. 1-5, an analog output device based on DCS system includes a base plate 1; the bottom plate 1 is provided with a connecting block 2, the bottom plate 1 is provided with a dismounting mechanism, the connecting block 2 is mounted on the bottom plate 1 through the dismounting mechanism, the connecting block 2 is fixedly connected with a frequency converter body 3, and the frequency converter body 3 is provided with a ventilating plate 4;

the disassembly and assembly mechanism comprises four first fixed plates 5 fixedly connected on a bottom plate 1, a rotating shaft 6 is connected between every two adjacent first fixed plates 5 in a rotating mode through a bearing, a worm wheel 7 is fixedly connected to one end of the rotating shaft 6, a worm 8 is connected to the bottom plate 1 in a rotating mode through a bearing, the worm 8 is meshed with the worm wheel 7, a rotary block 9 is fixedly connected to one end of the worm 8, a cam 10 is fixedly connected to the surface of the rotating shaft 6, four second fixed plates 11 are fixedly connected to the bottom plate 1, a T-shaped rod 12 is slidably inserted into the second fixed plates 11, a first movable plate 13 is fixedly connected to one end of the T-shaped rod 12, a first spring 14 is fixedly connected between the first movable plate 13 and the second fixed plates 11, the first spring 14 is sleeved on the outer side of the T-shaped rod 12, an insertion block 15 is fixedly connected to the first movable plate 13, and an insertion groove 16 is formed in a connecting block 2, the insert block 15 is inserted into the slot 16;

when the frequency control device works, the DCS can control the frequency of the frequency converter body 3 through an analog quantity signal, so that the operation of power equipment is controlled, when the frequency converter body 3 needs to be disassembled for maintenance due to faults, the rotating block 9 is rotated, the rotating block 9 drives the worm 8 to rotate, the worm 8 drives the worm wheel 7 to rotate, the worm wheel 7 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the cam 10 to rotate, under the action of the first spring 14, the first moving plate 13 moves backwards, the first moving plate 13 drives the inserting block 15 to leave the slot 16, the connecting block 2 and the frequency converter body 3 can be taken down, the installation is carried out after maintenance, the connecting block 2 is positioned and arranged on the bottom plate 1, the rotating block 9 is rotated, the cam 10 is driven to rotate, the cam 10 presses the first moving plate 13 to move, the inserting block 15 is inserted into the slot 16, and the installation is finished.

The frequency converter body 3 is provided with a limiting component for limiting the ventilating plate 4, the limiting component comprises a third fixing plate 17 fixedly connected on the frequency converter body 3, two guide rods 18 are slidably inserted into the third fixing plate 17, one end of each guide rod 18 is fixedly connected with a connecting plate 19, a second moving plate 20 is fixedly connected to the other end of the guide rod 18, a second spring 21 is fixedly connected between the second moving plate 20 and the third fixed plate 17, the second spring 21 is sleeved outside the guide rod 18, the second moving plate 20 is fixedly connected with a connecting rod 22, two racks 23 are fixedly connected on the connecting rod 22, two rotating columns 24 are rotatably connected on the frequency converter body 3 through bearings, a gear 25 is fixedly connected to the top end of the rotating column 24, the gear 25 is meshed with the rack 23, a pressure plate 26 is fixedly connected to the rotating column 24, and the pressure plate 26 is in contact with the ventilating plate 4;

when the ventilating board 4 works for a long time, dust can be attached to the holes of the ventilating board 4, which is not beneficial to heat dissipation and ventilation of the frequency converter body 3, the ventilating board 4 needs to be detached for cleaning, the connecting board 19 is pulled, the connecting board 19 drives the guide rod 18 to move, the guide rod 18 drives the second moving board 20 to move, the second moving board 20 drives the connecting rod 22 to move, the connecting rod 22 drives the rack 23 to move, the rack 23 drives the gear 25 to rotate, the gear 25 drives the rotating column 24 to rotate, the rotating column 24 drives the pressing board 26 to rotate, so that the pressing board 26 is away from the upper part of the ventilating board 4, the ventilating board 4 can be detached for cleaning, when the connecting board 19 is pulled during installation, the ventilating board 4 is arranged on the frequency converter body 3 according to the second positioning groove 30 and the second positioning block 31, the connecting board 19 is loosened, and under the action of the second spring 21, the pressing board 26 rotates to the ventilating board 4, and (5) finishing the installation.

Four first positioning grooves 27 are formed in the bottom plate 1, four first positioning blocks 28 are fixedly connected to the connecting block 2, and the first positioning blocks 28 are inserted into the first positioning grooves 27;

during operation, in the process of installing the frequency converter body 3, the first positioning block 28 is inserted into the first positioning groove 27 to play a positioning role, so that the insertion block 15 is just inserted into the insertion groove 16.

A first round hole 29 is formed in the second fixing plate 11, and the T-shaped rod 12 penetrates through the first round hole 29 in a sliding manner;

in operation, during the movement of the first moving plate 13, the T-shaped rod 12 slides in the first circular hole 29 to limit the first moving plate 13 in the horizontal direction.

Four second positioning grooves 30 are formed in the frequency converter body 3, four second positioning blocks 31 are fixedly connected to the ventilating plate 4, and the second positioning blocks 31 are inserted into the second positioning grooves 30;

during operation, in the process of installing the ventilation board 4, the second positioning block 31 is inserted into the second positioning groove 30 to play a positioning role.

A second round hole 32 is formed in the third fixing plate 17, and the guide rod 18 penetrates through the second round hole 32 in a sliding manner;

in operation, during the movement of the second moving plate 20, the guide bar 18 slides in the second circular hole 32 to limit the second moving plate 20 in the horizontal direction.

Example two

Referring to fig. 6, in a first comparative example, as another implementation manner of the present invention, four mounting blocks 33 are fixedly connected to the bottom plate 1, and the mounting blocks 33 are provided with mounting holes 34; in operation, the base plate 1 can be mounted to a location via the mounting holes 34 and bolts during initial installation.

The working principle is as follows: when the frequency converter is in failure and needs to be dismounted for maintenance, the DCS system can control the frequency of the frequency converter body 3 through an analog quantity signal so as to control the operation of power equipment, when the frequency converter body 3 is rotated, the rotating block 9 is rotated to drive the worm 8 to rotate, the worm 8 drives the worm wheel 7 to rotate, the worm wheel 7 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the cam 10 to rotate, under the action of the first spring 14, the first moving plate 13 moves back, the first moving plate 13 drives the inserting block 15 to leave the slot 16, so that the connecting block 2 and the frequency converter body 3 can be dismounted, the maintenance is carried out, the installation is carried out, the connecting block 2 is arranged on the bottom plate 1 according to the first positioning groove 27 and the first positioning block 28, the rotating block 9 is rotated to drive the cam 10 to rotate, the cam 10 presses the first moving plate 13 to move, the inserting block 15 is inserted into the slot 16 to complete the installation, and the use time of the ventilating plate 4 is longer, dust can be attached to the hole of ventilating board 4 in, be unfavorable for the heat dissipation ventilation of converter body 3, need dismantle ventilating board 4 and clear up, pulling connecting plate 19, connecting plate 19 drives the motion of guide bar 18, guide bar 18 drives the motion of second movable plate 20, second movable plate 20 drives connecting rod 22 motion, connecting rod 22 drives rack 23 motion, rack 23 drives gear 25 and rotates, gear 25 drives rotation post 24 and rotates, rotation post 24 drives clamp plate 26 and rotates, make clamp plate 26 leave ventilating board 4 top, can take off ventilating board 4 and clear up, during the installation, pulling connecting plate 19, set up ventilating board 4 on converter body 3 according to second constant head tank 30 and second locating piece 31, loosen connecting plate 19, under the effect of second spring 21, clamp plate 26 rotates on ventilating board 4, accomplish the installation.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. An analog quantity output device based on DCS system is characterized in that: comprises a bottom plate (1); the frequency converter is characterized in that a connecting block (2) is arranged on the bottom plate (1), a dismounting mechanism is arranged on the bottom plate (1), the connecting block (2) is installed on the bottom plate (1) through the dismounting mechanism, a frequency converter body (3) is fixedly connected onto the connecting block (2), and a ventilating plate (4) is arranged on the frequency converter body (3);

the dismouting mechanism includes four first fixed plates (5) of rigid coupling on bottom plate (1), adjacent two rotate through the bearing between first fixed plate (5) and be connected with pivot (6), the one end rigid coupling of pivot (6) has worm wheel (7), rotate through the bearing on bottom plate (1) and connect worm (8), worm (8) and worm wheel (7) meshing, the one end rigid coupling of worm (8) has spiral block (9), the surface rigid coupling of pivot (6) has cam (10), the rigid coupling has four second fixed plates (11) on bottom plate (1), it inserts and is equipped with T shape pole (12) to slide on second fixed plate (11), the one end rigid coupling of T shape pole (12) has first movable plate (13), the rigid coupling has first spring (14) between first movable plate (13) and second fixed plate (11), first spring (14) cover is established in the outside of T shape pole (12), an inserting block (15) is fixedly connected to the first moving plate (13), an inserting groove (16) is formed in the connecting block (2), and the inserting block (15) is inserted into the inserting groove (16).

2. The analog quantity output device based on the DCS system of claim 1, wherein: the limiting device is characterized in that a limiting component used for limiting the ventilating plate (4) is arranged on the frequency converter body (3), the limiting component comprises a third fixing plate (17) fixedly connected to the frequency converter body (3), two guide rods (18) are slidably inserted into the third fixing plate (17), a connecting plate (19) is fixedly connected to one ends of the guide rods (18), a second moving plate (20) is fixedly connected to the other ends of the guide rods (18), a second spring (21) is fixedly connected between the second moving plate (20) and the third fixing plate (17), the second spring (21) is sleeved on the outer side of each guide rod (18), a connecting rod (22) is fixedly connected to the second moving plate (20), two racks (23) are fixedly connected to the connecting rod (22), two rotating columns (24) are rotatably connected to the frequency converter body (3) through bearings, and gears (25) are fixedly connected to the top ends of the rotating columns (24), the gear (25) is meshed with the rack (23), a pressing plate (26) is fixedly connected to the rotating column (24), and the pressing plate (26) is in contact with the ventilating plate (4).

3. The analog quantity output device based on the DCS system of claim 2, wherein: four first positioning grooves (27) are formed in the bottom plate (1), four first positioning blocks (28) are fixedly connected to the connecting block (2), and the first positioning blocks (28) are inserted into the first positioning grooves (27).

4. The DCS-based analog quantity output apparatus according to claim 3, wherein: a first round hole (29) is formed in the second fixing plate (11), and the T-shaped rod (12) penetrates through the first round hole (29) in a sliding mode.

5. The analog quantity output device based on the DCS system according to claim 4, wherein: four second positioning grooves (30) are formed in the frequency converter body (3), four second positioning blocks (31) are fixedly connected to the ventilating plate (4), and the second positioning blocks (31) are inserted into the second positioning grooves (30).

6. The analog quantity output device based on the DCS system of claim 5, wherein: and a second round hole (32) is formed in the third fixing plate (17), and the guide rod (18) penetrates through the second round hole (32) in a sliding manner.