CN216775372U

CN216775372U - Frequency conversion control cabinet based on PLC control

Info

Publication number: CN216775372U
Application number: CN202220016843.0U
Authority: CN
Inventors: 张栋珍; 史宏凯
Original assignee: Crowdford Wuxi Intelligent Technology Co ltd
Current assignee: Crowdford Wuxi Intelligent Technology Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-06-17
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a variable frequency control cabinet based on PLC control, and particularly relates to the technical field of power control. According to the utility model, by arranging the bidirectional motor and utilizing the characteristic of stable gear meshing transmission, the fixed plate can be driven to stretch and move in the sliding groove through the transmission part, so that the fixed plate, the supporting plate and the carrying plate can slide out of the sliding groove to be convenient for maintenance, and the device is convenient for PLC control.

Description

Frequency conversion control cabinet based on PLC control

Technical Field

The utility model relates to the technical field of power control, in particular to a variable frequency control cabinet based on PLC control.

Background

The variable frequency control cabinet is mainly used for adjusting the working frequency of equipment, reducing energy loss, stably starting the equipment and reducing the damage of large current generated when the equipment is directly started to a motor. Meanwhile, the device is provided with analog quantity input (for speed control or feedback signals), PID control, pump switching control (for constant pressure), a communication function, a macro function (different parameter settings aiming at different occasions), multi-speed and the like. The automatic control system can be widely applied to the automatic control of various occasions such as water supply, drainage, fire fighting, spraying pipe network pressurization, heating, ventilation, air conditioning, cold and hot water circulation and the like in industrial and agricultural production and various buildings.

But when the in-service use, because most variable frequency control cabinet is in airtight environment to the staff of not being convenient for overhauls the inside of the device, thereby needs PLC control easy access, consequently needs further improvement.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects in the prior art, embodiments of the present invention provide a variable frequency control cabinet based on PLC control, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a variable frequency control cabinet based on PLC control, includes the cabinet body, the sliding tray has been seted up to the inside of the cabinet body, the equal sliding connection of inner wall of sliding tray top and bottom has a fixed plate, two the fixed plate is close to one side both ends each other and passes through backup pad fixed connection, the transmission groove has been seted up to the left part of the cabinet body, the inner wall fixed mounting in transmission groove has two-way motor, be provided with moving mechanism, two between two-way motor and the fixed plate one side fixed mounting that the backup pad is close to each other has a year thing board, two the front of fixed plate just wears to establish out sliding tray fixed mounting and has the cabinet door.

In order to utilize the stable characteristics of gear engagement transmission to two-way motor can drive the fixed plate and move in the sliding tray that stretches out and draws back, thereby the backup pad that the fixed plate is connected and the thing board that carries that the backup pad is connected can all follow the sliding tray that the cabinet body was seted up and slide out the easy access, therefore the device is convenient for PLC's control, moving mechanism includes the transmission shaft of fixed connection at two-way motor output shaft, the fixed surface of transmission shaft has cup jointed drive bevel gear, the inner wall of transmission groove rotates and is connected with the axis of rotation, driven bevel gear and drive gear have been cup jointed to the fixed surface of axis of rotation, drive bevel gear is connected with driven bevel gear meshing, the fixed plate is close to the surface in transmission groove and has seted up the sawtooth recess that is rectangular evenly distributed, drive gear and sawtooth recess meshing connection.

In order to enable the transmission gear to rotate smoothly in the through groove and further to be beneficial to keeping the whole structure stable, the through groove is formed between the transmission groove and the sliding groove, the transmission gear penetrates through the inside of the through groove, and the transmission gear rotates in the inside of the through groove.

In order to make the fixing plate and the supporting plate form corresponding shapes by utilizing the shape of the sliding groove, thereby contributing to improving the supporting and explosion-proof capacity of the structure, the shape of the sliding groove is in an I shape.

In order to reduce the friction force applied to the fixing plate when the fixing plate stretches and moves in the sliding groove by utilizing the roller, the PLC is convenient to control the sliding of the fixing plate in the sliding groove through the two-way motor, the inner wall of the sliding groove is provided with a rolling groove, the inner wall of the rolling groove is connected with the roller through the rotation of the rotating shaft, and the roller penetrates through the rolling groove and contacts with the fixing plate.

In order to increase the heat dissipation speed when the fixed plate drives the supporting plate to move out of the cabinet body, the middle of the supporting plate is provided with a ventilation groove.

The utility model has the technical effects and advantages that:

1. compared with the prior art, by arranging the bidirectional motor, the bidirectional motor utilizes the characteristic of stable transmission of gear engagement, so that the transmission parts such as the driving bevel gear, the driven bevel gear, the transmission gear and the like can drive the fixing plate to extend and retract in the sliding groove, and the supporting plate connected with the fixing plate and the carrying plate connected with the supporting plate can slide out of the sliding groove formed in the cabinet body to be convenient for maintenance, so that the device is convenient for PLC control; through setting up logical groove, can make drive gear at logical inslot rotation smooth to be favorable to overall structure to remain stable.

2. Compared with the prior art, the sliding groove is arranged in an I-shaped shape, so that the fixing plate and the support plate can form a corresponding shape by utilizing the shape of the sliding groove, and the support explosion-proof capacity of the structure is improved; by arranging the roller and the rolling groove, the friction force applied to the fixing plate during the telescopic movement in the sliding groove can be reduced by using the roller, so that the PLC is convenient to control the sliding of the fixing plate in the sliding groove through the bidirectional motor; through setting up the air channel, can increase the radiating rate when the fixed plate drives the backup pad and shifts out the cabinet body.

Drawings

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

Fig. 2 is a schematic diagram of a structure of a fixed plate and a carrying plate according to the present invention.

Fig. 3 is a schematic sectional view of the cabinet of the present invention.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention.

The reference signs are: 1. a cabinet body; 2. a sliding groove; 3. a fixing plate; 4. a support plate; 5. a transmission groove; 6. a bi-directional motor; 7. a loading plate; 8. a cabinet door; 9. a drive shaft; 10. a drive bevel gear; 11. a rotating shaft; 12. a driven bevel gear; 13. a transmission gear; 14. a sawtooth groove; 15. a through groove; 16. a rolling groove; 17. a roller; 18. and (6) ventilating slots.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Like figure 1, the variable frequency control cabinet based on PLC control that figure 2 and figure 3 show, including the cabinet body 1, sliding tray 2 has been seted up to the inside of the cabinet body 1, the equal sliding connection of inner wall of 2 tops of sliding tray and bottom has fixed plate 3, two fixed plates 3 are close to one side both ends each other and pass through backup pad 4 fixed connection, driving groove 5 has been seted up to the left part of the cabinet body 1, the inner wall fixed mounting of driving groove 5 has two-way motor 6, be provided with moving mechanism between two-way motor 6 and the fixed plate 3, one side fixed mounting that two backup pads 4 are close to each other has year thing board 7, two fixed plates 3 just wear to establish 2 fixed mounting of sliding tray and have cabinet door 8 in the front.

In a preferred embodiment, as shown in fig. 3 and fig. 4, the moving mechanism includes a transmission shaft 9 fixedly connected to an output shaft of the bi-directional motor 6, a driving bevel gear 10 is fixedly sleeved on a surface of the transmission shaft 9, a rotation shaft 11 is rotatably connected to an inner wall of the transmission groove 5, a driven bevel gear 12 and a transmission gear 13 are fixedly sleeved on a surface of the rotation shaft 11, the driving bevel gear 10 is engaged with the driven bevel gear 12, a long and uniformly distributed sawtooth groove 14 is formed on a surface of the fixing plate 3 close to the transmission groove 5, and the transmission gear 13 is engaged with the sawtooth groove 14, so that the fixing plate 3 can be driven to move in the sliding groove 2 by the transmission components such as the driving bevel gear 10, the driven bevel gear 12 and the transmission gear 13 due to the stable gear engagement transmission, and thus the supporting plate 4 connected with the fixing plate 3 and the loading plate 7 connected with the supporting plate 4 can both slide out of the sliding groove 2 formed in the cabinet 1 for inspection Therefore, the device is convenient for PLC control.

In a preferred embodiment, as shown in fig. 3 and 4, a through groove 15 is formed between the transmission groove 5 and the sliding groove 2, and the transmission gear 13 is inserted into the through groove 15, and the transmission gear 13 rotates inside the through groove 15, so that the transmission gear 13 can smoothly rotate inside the through groove 15, thereby facilitating the stability of the whole structure.

In a preferred embodiment, as shown in fig. 2 and 3, the shape of the sliding groove 2 is in a shape of a round bar, so that the shape of the sliding groove 2 can be used to make the fixing plate 3 and the support plate 4 form a corresponding shape, thereby contributing to the supporting explosion-proof capability of the structure.

In a preferred embodiment, as shown in fig. 3 and 4, a rolling groove 16 is formed on the inner wall of the sliding groove 2, a roller 17 is rotatably connected to the inner wall of the rolling groove 16 through a rotating shaft, the roller 17 penetrates through the rolling groove 16 and contacts with the fixed plate 3, so that the roller 17 can be used to reduce the friction force applied to the fixed plate 3 during the telescopic movement in the sliding groove 2, and thus the PLC can control the sliding of the fixed plate 3 in the sliding groove 2 through the bidirectional motor 6.

In a preferred embodiment, as shown in fig. 1 and 2, the middle of the supporting plate 4 is opened with a ventilation slot 18 to increase the heat dissipation speed when the fixing plate 3 drives the supporting plate 4 to move out of the cabinet 1.

The working principle of the utility model is as follows: when in use, when the internal structure of the cabinet body of the variable frequency control cabinet needs to be overhauled, the PLC controls the bidirectional motor 6 to start, because the bidirectional motor 6 drives the transmission shaft 9 to rotate, the driving bevel gear 10 on the transmission shaft is meshed with the driven bevel gear 12 on the rotating shaft 11, and the driven bevel gear 12 and the transmission gear 13 are fixed on the same rotating shaft 11, so that the rotation of the transmission shaft can drive the driven bevel gear 12, the rotating shaft 11 and the transmission gear 13 in turn, the transmission gear 13 is meshed with the sawtooth grooves 14 which are uniformly distributed in a long strip shape on the fixed plate 3, the transmission gear 13 rotates to drive the fixed plate 3 to move in the sliding groove 2 in a telescopic way, therefore, the supporting plate 4 connected with the fixing plate 3 and the carrying plate 7 connected with the supporting plate 4 can slide out of the sliding groove 2 formed in the cabinet body 1 for convenient maintenance, so that the device is convenient for PLC control; through the through groove 15, the transmission gear 13 can smoothly rotate in the through groove 15, so that the whole structure is kept stable; by arranging the slide groove 2 to be in an I-shaped shape, the fixed plate 3 and the support plate 4 can be formed into corresponding shapes by utilizing the shape of the slide groove 2, thereby being beneficial to improving the supporting and explosion-proof capacity of the structure; by arranging the roller 17 and the rolling groove 16, the friction force applied to the fixed plate 3 during the telescopic movement in the sliding groove 2 can be reduced by using the roller 17, so that the PLC is convenient for controlling the fixed plate 3 to slide in the sliding groove 2 through the bidirectional motor 6; by arranging the ventilation slots 18, the heat dissipation speed can be increased when the fixed plate 3 drives the supporting plate 4 to move out of the cabinet body 1; in conclusion, the device is convenient for the PLC control and is convenient for the staff to overhaul, therefore has the practicality.

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.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a variable frequency control cabinet based on PLC control, includes the cabinet body (1), its characterized in that: sliding tray (2) have been seted up to the inside of the cabinet body (1), the equal sliding connection of inner wall of sliding tray (2) top and bottom has fixed plate (3), two fixed plate (3) are close to the both ends of one side each other and pass through backup pad (4) fixed connection, driving groove (5) have been seted up to the left part of the cabinet body (1), the inner wall fixed mounting of driving groove (5) has two-way motor (6), be provided with moving mechanism, two between two-way motor (6) and fixed plate (3) one side fixed mounting that backup pad (4) are close to each other has year thing board (7), two the front of fixed plate (3) just wears to establish out sliding tray (2) fixed mounting and has cabinet door (8).

2. The frequency conversion control cabinet based on PLC control of claim 1, characterized in that: the moving mechanism comprises a transmission shaft (9) fixedly connected to an output shaft of a two-way motor (6), a driving bevel gear (10) is sleeved on the surface of the transmission shaft (9), a rotating shaft (11) is connected to the inner wall of a transmission groove (5) in a rotating mode, a driven bevel gear (12) and a transmission gear (13) are sleeved on the surface of the rotating shaft (11) in a fixed mode, the driving bevel gear (10) is meshed with the driven bevel gear (12) in a connecting mode, a sawtooth groove (14) which is long and evenly distributed is formed in the surface, close to the transmission groove (5), of a fixing plate (3), and the transmission gear (13) is meshed with the sawtooth groove (14).

3. The PLC control-based variable frequency control cabinet according to claim 2, characterized in that: a through groove (15) is formed between the transmission groove (5) and the sliding groove (2), the transmission gear (13) penetrates through the inside of the through groove (15), and the transmission gear (13) rotates inside the through groove (15).

4. The frequency conversion control cabinet based on PLC control of claim 3, characterized in that: the shape of the sliding groove (2) is in an I shape.

5. The PLC control-based variable frequency control cabinet according to claim 4, characterized in that: the inner wall of the sliding groove (2) is provided with a rolling groove (16), the inner wall of the rolling groove (16) is rotatably connected with a roller (17) through a rotating shaft, and the roller (17) penetrates through the rolling groove (16) to be in contact with the fixing plate (3).

6. The PLC control-based variable frequency control cabinet according to claim 5, characterized in that: the middle of the supporting plate (4) is provided with a ventilation groove (18).