CN218632874U - A excitation device screen cabinet for generator - Google Patents

Abstract

The utility model discloses an excitation device screen cabinet for a generator, relates to the field of electric power engineering, and comprises a cabinet body, one side of the cabinet body is provided with a moving assembly, the other side of the cabinet body is connected with a cabinet door, and the cabinet body An inner cavity is provided inside, an air duct is provided above the inside of the cabinet, and a fan is installed inside the air duct. The utility model uses a motor, a filter sponge, a chain, an air guiding frame, a buffer pad, a batting frame, an electric push rod and a steel wire rope to filter the incoming airflow through the filter sponge. Compared with the existing dust-proof net, the filter sponge is more The dust filtering ability is better, so as to effectively reduce the entry of dust, and the filter mainly prevents small to large impurities such as stones from entering, and then the incoming air flows through the fan and air duct into the cabinet, and at the same time prevents the air from entering the casing through the air guide frame It is convenient to clean the surface of the filter sponge so as to prevent the surface of the filter sponge from being covered with dust and reduce the impact on the airflow.

Description

An excitation device screen cabinet for a generator

technical field

The utility model relates to the field of electric power engineering, in particular to an excitation device screen cabinet for a generator.

Background technique

The excitation device refers to the electrical control device that can control and adjust the excitation current in the excitation system of the synchronous generator except for the excitation power supply. The screen cabinet is the one with the widest application range, the largest amount of installation and a relatively simple structure in the substation. Equipment and secondary systems in substations almost all need to use screen cabinets, and the excitation device will also be installed inside the screen cabinets.

In order to facilitate heat dissipation, the existing excitation device screen cabinet for generators will have multiple holes on both sides of the cabinet to facilitate air circulation and heat dissipation for electrical equipment. At the same time, it will be used with a filter to reduce the entry of dust, but the filter After the net is used for a long time, the surface is easy to be covered by dust, which will slow down the air circulation speed and affect the heat dissipation of electrical equipment. The cabinet is transported by a trolley, but it is more labor-intensive to lift the cabinet up and down when transported by a trolley, and it is also easy to fall during handling and transportation, causing damage to personnel and equipment, and it is inconvenient to use.

Utility model content

Based on this, the purpose of this utility model is to provide an excitation device screen cabinet for generators to solve the technical problems that the dust is easy to cover the filter screen and it is not easy to move.

In order to achieve the above purpose, the utility model provides the following technical solutions: a screen cabinet for an excitation device for a generator, including a cabinet body, one side of the cabinet body is provided with a moving assembly, and the other side of the cabinet body is connected to There is a cabinet door, the inside of the cabinet is provided with an inner cavity, the upper part of the cabinet is provided with an air duct, the inside of the air duct is equipped with a fan, and the outer surface and back of the cabinet are connected with ventilating The bottom side of the cabinet is connected with anti-skid feet, and the top side of the cabinet is provided with a dustproof component.

By adopting the above technical solution, the dust-proof component filters the incoming airflow through the filter sponge. Compared with the existing dust-proof net, the filter sponge has a better ability to filter dust, thereby effectively reducing dust entry, and the filter mainly prevents Stones and other small to large impurities enter, and the moving component rotates the screw by rotating the hand wheel. After the screw rotates, it drives the threaded sleeve to move up, so that the connecting rod moves up to drive the supporting legs to rotate, and then pushes the cabinet to tilt the cabinet so that The universal wheels are in contact with the ground.

Further, the dust-proof assembly includes a shell connected to the top side of the cabinet, a collection box is arranged under the inside of the shell, a filter screen is connected to the top of the shell, and a motor is installed on one side of the shell , the output end of the motor is connected with two sprockets, and there are four sprockets, two chains are respectively connected between the four sprockets, and a filter sponge is connected between the two chains , both sides of the top of the filter sponge are connected with steel wire ropes, the inside of the shell is connected with an air guide frame, the bottom of the air guide frame is connected with a buffer pad, and the inner walls of the shell are respectively equipped with four electric push rods , the output ends of the four electric push rods are connected with beaters.

By adopting the above technical solution, the incoming airflow is filtered by the filter sponge. Compared with the existing dust-proof net, the filter sponge has a better ability to filter dust, thereby effectively reducing dust entry, and the filter mainly prevents small Until large impurities enter.

Further, the moving assembly includes a mounting frame connected to one side of the cabinet body, a screw rod connected to one side of the cabinet body, and a roller connected to the lower surface of the cabinet body. The bottom of the mounting frame is penetrated with supporting legs, so A hydraulic damper runs through the bottom of the supporting leg, a spring is provided on the outer surface of the hydraulic damper, a universal wheel is connected to one end of the hydraulic damper, and a rubber sleeve is connected between the supporting leg and the universal wheel A threaded sleeve is connected to one side of the screw rod, a connecting rod is connected to one side of the screw rod, and a hand wheel is connected to one end of the screw rod.

By adopting the above technical scheme, when the cabinet needs to be moved, the screw rod is rotated by rotating the hand wheel. After the screw rod rotates, the threaded sleeve is driven up so that the connecting rod moves up to drive the supporting legs to rotate, and then the cabinet body is tilted by pushing the cabinet body Therefore, the universal wheels are in contact with the ground, which consumes less energy than lifting the cabinet, and then the universal wheels and rollers are used to facilitate the movement of the cabinet, while the center of gravity of the cabinet moves down to prevent the cabinet from tipping over when moving.

Further, the beating frame is slidably connected to the casing, and the collection box is detachably connected to the casing.

By adopting the above technical solution, after the electric push rod is activated, the beater frame is driven to reciprocate up and down to beat the filter sponge, so as to knock down the dust covered on the filter sponge, and then the dust falls into the collection box for storage for subsequent unified processing.

Further, both ends of the connecting rod are respectively rotatably connected to the supporting leg and the threaded sleeve through a rotating shaft, and the supporting leg is rotatably connected to the mounting frame through a rotating shaft.

By adopting the above technical scheme, when the cabinet needs to be moved, the screw rod is rotated by rotating the hand wheel. After the screw rod rotates, the threaded sleeve is driven up so that the connecting rod moves up to drive the supporting legs to rotate, and then the cabinet body is tilted by pushing the cabinet body In this way, the universal wheels are in contact with the ground, which consumes less energy than lifting the cabinet, and then the universal wheels and rollers are used to facilitate the movement of the cabinet.

Further, the air guide frame is in the shape of "凵", and the air guide frame is adapted to the chain.

By adopting the above technical scheme, the incoming airflow is filtered through the filter sponge, thereby effectively reducing the entry of dust, and the filter mainly prevents small to large impurities such as stones from entering, and then the incoming airflow passes through the fan and air duct into the cabinet, and at the same time The airflow is prevented from entering the inner lower part of the housing by means of the air deflector.

Further, a chute is provided under one side of the cabinet, and the threaded sleeve is slidably connected with the cabinet through the chute.

By adopting the above technical scheme, when the cabinet needs to be moved, the screw rod is rotated by rotating the hand wheel. After the screw rod rotates, the threaded sleeve is driven up so that the connecting rod moves up to drive the supporting legs to rotate, and then the cabinet body is tilted by pushing the cabinet body Thereby the universal wheel is in contact with the ground.

Further, the filter sponge is fixedly connected to two chains through two steel wire ropes, and the filter sponge is compatible with the chains.

By adopting the above technical solution, the output end of the motor drives two sprockets to rotate, and then the four sprockets rotate through the chain, and at the same time drives the filter sponge to rotate. The filter sponge is tied to the chain by a wire rope during use so as to follow the chain rotation .

In summary, the utility model mainly has the following beneficial effects:

1. The utility model filters the incoming airflow through the motor, filter sponge, chain, wind guide frame, buffer pad, beat frame, electric push rod and steel wire rope, and the filter sponge is better than the existing dust-proof net. It is said that the ability to filter dust is better, thereby effectively reducing the entry of dust, and the filter mainly prevents small to large impurities such as stones from entering, and then the incoming air flows into the cabinet through the fan and air duct, and at the same time prevents the air flow from entering through the air guide frame To the inner bottom of the shell, after the motor is started, the output end drives the two sprockets to rotate, and then the four sprockets rotate through the chain, and at the same time drive the filter sponge to rotate. The filter sponge is tied to the chain by a wire rope to follow the chain when in use. After the electric push rod is started, it drives the beater to move up and down to beat the filter sponge, so as to knock down the dust covered on the filter sponge, and then the dust falls into the collection box for subsequent unified processing. At the same time, through the setting of the buffer pad To prevent the chain from colliding with the wind guide frame when it is under the pressure of the beater, it is convenient to clean the surface of the filter sponge so as to avoid the surface of the filter sponge from being covered with dust and reduce the impact on the air flow;

2. The utility model uses the supporting legs, rubber sleeves, universal wheels, connecting rods, screw rods, rollers, springs and hydraulic dampers. When the cabinet needs to be moved, the screw rod is rotated by rotating the hand wheel, and the screw rod is driven after rotation. The threaded sleeve moves up so that the connecting rod moves up to drive the supporting legs to rotate, and then the cabinet is tilted by pushing the cabinet to make the universal wheel contact the ground, which consumes less energy than lifting the cabinet, and then passes through the universal Wheels and rollers facilitate the movement of the cabinet, and at the same time the center of gravity of the cabinet moves down to prevent the cabinet from tipping over when moving. When moving the cabinet, the spring and hydraulic damper are used to buffer the impact force to reduce the pressure on the connecting rod and avoid universal movement. When the wheel is bumpy, excessive pressure is applied to the screw rod through the connecting rod, causing the screw rod to collapse. At the same time, the rubber sleeve is used to prevent the surface of the spring and hydraulic damper from being covered with dust. The wheel rotates the screw rod in the opposite direction, so that the supporting legs can be rotated to reduce the area occupied by the screen cabinet and facilitate the movement of the screen cabinet.

Description of drawings

Fig. 1 is a schematic diagram of the closed structure of the supporting legs of the present utility model;

Fig. 2 is a schematic diagram of the expanded structure of the supporting legs of the utility model;

Fig. 3 is the schematic diagram of the sectional structure of the cabinet body of the present utility model;

Fig. 4 is an enlarged view of the structure at A in Fig. 3 of the present utility model;

Fig. 5 is a schematic diagram of a side sectional structure of the housing of the present invention;

Fig. 6 is an enlarged view of the structure at B in Fig. 5 of the present utility model;

Fig. 7 is a structural schematic diagram of the beat frame of the present invention.

In the figure: 1. Cabinet body; 2. Cabinet door; 3. Ventilation plate; 4. Inner chamber; 5. Anti-skid feet; 6. Dustproof component; 601. Shell; Motor; 605, filter sponge; 606, chain; 607, air guide frame; 608, buffer pad; 609, beater frame; 610, electric push rod; 611, sprocket wheel; 612, wire rope; 7, moving component; Frame; 702, supporting leg; 703, rubber sleeve; 704, universal wheel; 705, connecting rod; 706, screw rod; 707, hand wheel; 708, roller; 709, spring; 710, hydraulic damper; 8, wind Road; 9, fan.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

Below according to the overall structure of the utility model, its embodiment is described.

An excitation device screen cabinet for generators, as shown in Figures 1, 2, 3, 4 and 5, includes a cabinet body 1, and one side of the cabinet body 1 is provided with a moving assembly 7, which is convenient for moving the screen cabinet, and the cabinet body The other side of 1 is connected with a cabinet door 2, the interior of the cabinet 1 is provided with an inner cavity 4, an air duct 8 is opened above the interior of the cabinet 1, a fan 9 is installed inside the air duct 8, and the outer surface of the cabinet 1 and the back are connected with ventilating panels 3, the bottom side of the cabinet body 1 is connected with anti-skid feet 5, and the top side of the cabinet body 1 is provided with a dust-proof component 6, which is convenient for cleaning the surface of the filter sponge 605 so as to avoid the filter sponge 605 The surface is covered with dust.

Referring to Fig. 1, 2, 3, 4, 5, 6 and 7, the dust-proof assembly 6 includes a shell 601 connected to the top side of the cabinet body 1, a collection box 602 is arranged below the inside of the shell 601, and the top of the shell 601 is connected with A filter screen 603, a motor 604 is installed on one side of the housing 601, the output end of the motor 604 is connected with two sprockets 611, and there are four sprockets 611, and two chains are respectively connected between the four sprockets 611 606, a filter sponge 605 is connected between the two chains 606, a steel wire rope 612 is connected to both sides of the top of the filter sponge 605, an air guide frame 607 is connected to the inside of the shell 601, and a buffer pad 608 is connected to the bottom of the air guide frame 607, The inner wall of the housing 601 is respectively equipped with four electric push rods 610, and the output ends of the four electric push rods 610 are connected with a beating frame 609, which is slidingly connected with the shell 601, and the collection box 602 is disassembled and connected with the shell 601, and the wind guide The frame 607 is in the shape of "凵", and the air guide frame 607 is compatible with the chain 606, and the filter sponge 605 is fixedly connected with the two chains 606 respectively through two steel wire ropes 612, and the filter sponge 605 is compatible with the chain 606, which is convenient for The surface of the filter sponge 605 is cleaned so as to prevent the surface of the filter sponge 605 from being covered with dust and reduce the impact on the airflow.

Referring to Figures 1, 2 and 3, the moving assembly 7 includes a mounting bracket 701 connected to one side of the cabinet body 1, a screw rod 706 connected to one side of the cabinet body 1, and a roller 708 connected to the lower surface of the cabinet body 1. The bottom of the frame 701 runs through a supporting leg 702, the bottom of the supporting leg 702 runs through a hydraulic damper 710, the outer surface of the hydraulic damper 710 is provided with a spring 709, one end of the hydraulic damper 710 is connected with a universal wheel 704, and the supporting leg 702 A rubber sleeve 703 is connected with the universal wheel 704, a threaded sleeve is connected to one side of the screw rod 706, a connecting rod 705 is connected to one side of the screw rod 706, a hand wheel 707 is connected to one end of the screw rod 706, and the connecting rod 705 Both ends are rotatably connected to the supporting leg 702 and the threaded sleeve respectively through the rotating shaft, and the supporting leg 702 is rotatably connected to the mounting frame 701 through the rotating shaft. Sliding connection, easy to move the screen cabinet.

The implementation principle of this embodiment is: firstly, when the cabinet body 1 needs to be moved, the staff rotates the hand wheel 707 to rotate the screw rod 706, and after the screw rod 706 rotates, the threaded sleeve is driven to move upward so that the connecting rod 705 moves upward to drive the supporting leg 702 After turning, a staff member pushes the cabinet body 1 to tilt the cabinet body 1 so that the universal wheel 704 is in contact with the ground. At the same time, another or two staff members are required to hold the cabinet body 1 to slowly tilt the cabinet body 1 to avoid 1. Too fast tilting speed leads to excessive pressure and bending deformation of the structure. Compared with lifting the cabinet body 1, the labor consumption of the staff is less, and then the staff can move the cabinet body 1 through the universal wheels 704 and rollers 708. At the same time, due to The cabinet body 1 is tilted so that the center of gravity of the cabinet body 1 moves down to prevent the cabinet body 1 from falling over when moving. When the cabinet body 1 is moved, the spring 709 and the hydraulic damper 710 cooperate to buffer the impact force and reduce the pressure on the connecting rod 705 to avoid When the universal wheel 704 bumps, excessive pressure is applied to the threaded sleeve and the screw rod 706 through the connecting rod 705, causing the screw rod 706 to collapse. At the same time, the setting of the rubber sleeve 703 prevents the surface of the spring 709 and the hydraulic damper 710 from being covered with dust and does not need to be moved. Behind the cabinet body 1, the staff will straighten the cabinet body 1 and reversely rotate the hand wheel 707 to reverse the rotation of the screw rod 706, so that the supporting legs 702 will rotate to reduce the area occupied by the screen cabinet. In daily use, the staff will install the excitation device In the inner cavity 4, when the fan 9 is turned on, the outside air enters from the top of the casing 601 through the air duct 8 and enters the cabinet body 1 to dissipate heat from the excitation device in the cabinet body 1, and at the same time prevents the airflow from entering the casing 601 through the air guide frame 607. At the bottom of the interior, the hot air flow is then discharged through the two air-permeable panels 3, and the incoming air flow is filtered by the filter sponge 605. Compared with the dust-proof net on the existing screen cabinet, the filter sponge 605 has a better ability to filter dust , so as to effectively reduce the entry of dust, and the filter screen 603 mainly prevents small to large impurities such as stones from entering. When the motor 604 is turned on, the output end drives the two sprockets 611 to rotate, and then the four sprockets 611 are rotated through the chain 606 to drive the filter at the same time The sponge 605 rotates, and the filter sponge 605 is tied to the chain 606 through the steel wire rope 612 to rotate along with the chain 606 when in use. The dust on the filter sponge 605 is knocked off, and then the dust is dropped into the collection box 602 for storage to facilitate subsequent unified processing. Meanwhile, the setting of the buffer pad 608 prevents the chain 606 from colliding with the wind guide frame 607 to cause damage when it is subjected to pressure from the beating frame 609.

Although the embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be used in any Or multiple embodiments or examples are combined in a suitable manner, and those skilled in the art can make no creative contributions to the embodiments as required without departing from the principle and purpose of the utility model after reading this specification Amendments, replacements and variations, etc., but as long as they are within the scope of the claims of the utility model, they are all protected by the patent law.

Claims (8)

1. An excitation device screen cabinet for a generator, comprising a cabinet body (1), characterized in that a moving assembly (7) is arranged on one side of the cabinet body (1), and the cabinet body (1) The other side of the cabinet body (1) is connected with a cabinet door (2), the interior of the cabinet body (1) is provided with an inner cavity (4), and the interior of the cabinet body (1) is provided with an air duct (8), the air duct (8) A fan (9) is installed inside the channel (8), ventilating panels (3) are connected to the outer surface and back of the cabinet (1), and non-slip feet ( 5), the top side of the cabinet body (1) is provided with a dustproof component (6). 2. An excitation device screen cabinet for a generator according to claim 1, characterized in that: the dustproof assembly (6) includes a housing (601) connected to the top side of the cabinet (1), A collection box (602) is arranged under the inside of the casing (601), a filter screen (603) is connected to the top of the casing (601), and a motor (604) is installed on one side of the casing (601), Two sprockets (611) are connected to the output end of the motor (604), and there are four sprockets (611), and two chains ( 606), a filter sponge (605) is connected between the two chains (606), steel wire ropes (612) are connected to both sides of the top of the filter sponge (605), and the inside of the shell (601) is connected to The air guide frame (607), the bottom of the air guide frame (607) is connected with a buffer pad (608), and the inner wall of the casing (601) is respectively equipped with four electric push rods (610), and the four electric push rods (610) The output end of the push rod (610) is connected with a beating frame (609). 3. An excitation device screen cabinet for generators according to claim 1, characterized in that: the moving assembly (7) includes a mounting bracket (701) connected to one side of the cabinet body (1), The screw rod (706) connected to one side of the cabinet body (1) and the roller (708) connected to the lower surface of the cabinet body (1), the bottom of the installation frame (701) runs through the support leg (702), so A hydraulic damper (710) runs through the bottom of the support leg (702), the outer surface of the hydraulic damper (710) is provided with a spring (709), and one end of the hydraulic damper (710) is connected to a universal wheel (704), a rubber sleeve (703) is connected between the support leg (702) and the universal wheel (704), a threaded sleeve is connected to one side of the screw rod (706), and one side of the threaded sleeve A connecting rod (705) is connected, and a handwheel (707) is connected to one end of the screw rod (706). 4. A screen cabinet for an excitation device for a generator according to claim 2, characterized in that: the beat frame (609) is slidably connected to the casing (601), and the collection box (602) is connected to the casing (601) Disconnect the connection. 5. A screen cabinet for an excitation device for a generator according to claim 3, characterized in that: the two ends of the connecting rod (705) are respectively rotatably connected to the supporting leg (702) and the threaded sleeve through a rotating shaft, And the supporting legs (702) are rotatably connected to the installation frame (701) through a rotating shaft. 6. A screen cabinet for an excitation device for a generator according to claim 2, characterized in that: the air guide frame (607) is in the shape of "凵", and the air guide frame (607) and the chain (606) to match. 7. A screen cabinet for an excitation device for a generator according to claim 5, wherein a chute is provided under one side of the cabinet body (1), and the threaded sleeve is connected with the chute through the chute. Cabinet (1) sliding connection. 8. A screen cabinet for an excitation device for a generator according to claim 2, characterized in that: the filter sponge (605) is fixedly connected to two chains (606) through two steel wire ropes (612), respectively, And the filter sponge (605) is compatible with the chain (606).

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