Ash removal device for observation window of coal feeder

Abstract

The utility model belongs to the technical field of general cleaning of coal feeders, and particularly relates to a coal feeder observation window deashing device which comprises an observation window body, and the middle of a glass window of the observation window body is fixedly connected with the front end of a fixing cylinder. When the observation window body is cleaned, coal ash attached to the observation window can be blown away through airflow sprayed out of the nozzle, the first motor is controlled to work, and the first motor is used for driving the rotating plate to rotate to comprehensively clean the interior of the observation window; subsequently, an electric push rod is controlled to extend to push a front scraping plate to extend out of a through groove to be in contact with the rear side of the observation window, at the moment, a rotating plate rotates to drive the scraping plate to rotate in a manner of being attached to the observation window to clean attached coal ash again, and the ash cleaning effect of the device on the observation window is effectively improved; in addition, the device adopts a cleaning mode that coal ash is removed through air flow firstly and then scraped through the scraper, and therefore the situation that a large amount of coal ash is attached into fluff on the scraper, the service life of the scraper is shortened, and the cleaning effect is improved is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal feeder general cleaning technical field, concretely relates to a coal feeder observation window ash removal device. BACKGROUND

[0002] In order to facilitate the observation of the running condition inside the coal feeder, an observation window is designed on the front and rear door panels of the coal feeder. Since coal dust is generated during coal conveying inside the coal feeder, and the inside of the coal feeder is under positive pressure, coal dust is inevitably raised during coal dust conveying, and the coal dust will adhere to the glass surface of the observation window, affecting observation. The central part of the existing observation window is provided with a manually rotatable scraping strip cleaner. The scraping strip of the scraping strip cleaner has fluff attached to the glass surface of the observation window. The coal dust adhering to the glass surface is cleaned by rotating the scraping strip to drive the fluff.

[0003] The above-mentioned cleaning method directly uses the fluff on the scraping strip to clean the coal dust. During the cleaning process, a large amount of coal dust will adhere to the fluff on the scraping strip. When the fluff has a large amount of coal dust adhering thereto after long-term use of the scraping strip, the coal dust mixed in the fluff on the scraping strip will fall and adhere to the observation window again when the scraping strip is used to clean the observation window, resulting in poor cleaning effect of the observation window. Therefore, the scraping strip needs to be frequently replaced to ensure the cleaning effect, which requires the staff to frequently disassemble and assemble the observation window, and the workload of the relevant staff is large. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a coal feeder observation window ash removal device, which can preliminarily clean the coal dust adhering to the observation window by using airflow, and then wipe and clean the observation window by using the scraping strip, so as to reduce the amount of coal dust adhering to the fluff on the scraping strip, prolong the maintenance period of the scraping strip, and replace the scraping strip for use without disassembling the observation window, further reducing the maintenance period of the device and the workload of the relevant staff.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A coal feeder observation window ash removal device, comprising an observation window body, the middle part of the glass window of the observation window body is fixedly connected with the front end of a fixed cylinder, the rear end of the fixed cylinder is rotatably connected with the middle part of the front side of a rotating plate through a sealing bearing, a ventilation cavity, a connecting cavity and an installation cavity are sequentially formed in the inside of the rotating plate from left to right, a fixing frame and four scraping plates are sleeved in the installation cavity, and the front end of the scraping plate on the front side penetrates through a through groove and is lapped with the rear side of the glass window of the observation window body.

[0007] A plurality of nozzles are fixedly arranged on the left side of the front side of the rotating plate and are communicated with the ventilation cavity, and the right end of the ventilation cavity is fixedly connected with the left end of a connecting pipe.

[0008] The right end of the connecting pipe is rotatably connected with the rear end of the ventilation pipe through a sealing bearing, and the ventilation pipe is sleeved on the middle part of the fixed cylinder and is arranged concentrically with the fixed cylinder.

[0009] The front side of the ventilation pipe is fixedly connected with the middle part of the connecting frame, and the rear end of the connecting frame is fixedly connected with the front end surface of the fixed cylinder.

[0010] The opposite ends of the plurality of scrapers are connected with a plurality of connecting seats through bolts respectively, and the opposite ends of the plurality of connecting seats are fixedly connected with the outer side surface of the rotating shaft.

[0011] The two sides of the rotating shaft are rotatably connected with the left and right side surfaces of the fixed frame through bearings respectively, and the right side of the rotating shaft is fixedly connected with the gear one.

[0012] The gear one is meshingly connected with the gear two, the gear two is fixedly arranged on the output shaft of the motor two, and the right end of the motor two is fixedly connected with the fixed frame.

[0013] The rear end of the fixed frame is fixedly connected with the front ends of the two electric push rods simultaneously, and the rear ends of the two electric push rods are fixedly connected with the rear side surface of the mounting cavity.

[0014] The input ends of the two electric push rods and the motor two are electrically connected with the outer ring of the conductive slip ring, the inner ring of the conductive slip ring is fixedly connected with the rear end of the outer side surface of the ventilation pipe, the motor two is a stepping motor, and the position and angle of the rotating shaft and the plurality of scrapers are fixed by using the self-locking function of the stepping motor.

[0015] The upper surface of the rotating plate is provided with an inspection groove in communication with the mounting cavity, the inspection groove is sleeved with the bottom end of the cover plate, the upper end of the cover plate is connected with the upper surface of the rotating plate through bolts, the rear side surface of the rotating plate is fixedly connected with the output shaft of the motor one in the middle part, the rear end of the motor one is fixedly connected with the bottom end of the supporting frame, the upper end of the supporting frame is fixedly connected with the window frame of the observation window body, and the left end of the mounting cavity is provided with a threading hole in communication with the connecting cavity.

[0016] The technical effects achieved by the utility model are as follows:

[0017] This invention features ventilation chambers and mounting chambers on the left and right sides of a rotating plate. The ventilation chambers contain nozzles, and the mounting chambers contain a fixing frame, a rotating shaft, and four scrapers. When cleaning the observation window, the user connects the ventilation pipe to an external fan, using the fan, ventilation pipe, and connecting pipe to input airflow into the ventilation chambers. The airflow from the nozzles then blows away the coal ash adhering to the observation window. Simultaneously, the motor drives the rotating plate to thoroughly clean the inside of the observation window. Subsequently, the electric push rod extends, pushing the front scraper out of the slot and contacting the rear side of the observation window. The rotation of the rotating plate then causes the scraper to rotate against the observation window, further cleaning the adhering coal ash. This effectively improves the cleaning effect on the observation window. Furthermore, the device employs a cleaning method that first uses airflow to remove the coal ash and then uses scrapers to scrape it off, thus avoiding a large amount of coal ash adhering to the lint on the scraper, reducing its lifespan and cleaning effect.

[0018] This invention connects motor 2 to the rotating shaft via gears 1 and 2. When a large amount of coal ash adheres to the fibers on the scraper, reducing its cleaning effectiveness, the user can control the electric push rod to retract, moving the fixing frame and four scrapers backward. Then, the motor 2 is controlled to rotate the rotating shaft 90 degrees using gears 1 and 2, adjusting the position of the four scrapers. This allows the new, unused scrapers to rotate to the front of the rotating shaft, aligning with the through groove. The electric push rod is then extended, allowing the new scraper to extend from the through groove and contact the observation window. Once all four scrapers have been used, the observation window is removed, and the scrapers are replaced simultaneously. This extends the disassembly and assembly cycle of the observation window during maintenance, effectively reducing the workload of maintenance personnel and improving the convenience of maintaining the device. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0021] Figure 3 This is a front view structural diagram of the rotating plate in this utility model;

[0022] Figure 4 This is a top view cross-sectional structural diagram of the rotating plate in this utility model;

[0023] Figure 5 This is a schematic diagram of the right-side cross-sectional structure of the rotating plate in this utility model;

[0024] Figure 6 This is a structural schematic diagram of the fixing frame in this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1, observation window body; 2, ventilation pipe; 3, connecting frame; 4, rotating plate; 5, motor one; 6, support frame; 7, fixed cylinder; 8, nozzle; 9, scraper; 10, through slot; 11, cover plate; 12, ventilation cavity; 13, connecting pipe; 14, conductive slip ring; 15, connecting cavity; 16, electric push rod; 17, mounting cavity; 18, fixing frame; 19, maintenance slot; 20, threading hole; 21, gear one; 22, rotating shaft; 23, motor two; 24, gear two; 25, connecting seat. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear and obvious, the following will be specifically described with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model.

[0028] As shown in Figures 1-6 A coal feeder observation window ash removal device, including observation window body 1, the middle part of the glass window of observation window body 1 is fixedly connected with the front end of fixed cylinder 7, the rear end of fixed cylinder 7 is rotatably connected with the middle part of the front side of rotating plate 4 through a sealing bearing, the inside of rotating plate 4 is sequentially provided with ventilation cavity 12, connecting cavity 15 and mounting cavity 17 from left to right, fixed frame 18 and four scrapers 9 are sleeved in mounting cavity 17, the front end of front scraper 9 passes through through slot 10 and overlaps with the rear side of the glass window of observation window body 1.

[0029] Further, a plurality of nozzles 8 are fixedly arranged on the left side of the front side of rotating plate 4 and are communicated with ventilation cavity 12, and the right end of ventilation cavity 12 is fixedly connected with the left end of connecting pipe 13.

[0030] Further, the right end of connecting pipe 13 is rotatably connected with the rear end of ventilation pipe 2 through a sealing bearing, ventilation pipe 2 is sleeved in the middle part of fixed cylinder 7 and ventilation pipe 2 is concentrically arranged with fixed cylinder 7, ventilation pipe 2 is communicated with ventilation cavity 12 by arranging connecting pipe 13, when motor one 5 drives rotating plate 4 to rotate, the right end of connecting pipe 13 rotates around the rear end of ventilation pipe 2, so that ventilation pipe 2 is communicated with ventilation cavity 12 while rotating plate 4 rotates, when the inside of the glass window of the observation window is cleaned, the user can connect ventilation pipe 2 with an external fan, input airflow into ventilation cavity 12 by using the fan, ventilation pipe 2 and connecting pipe 13, and blow off the coal ash attached to the observation window by using the airflow sprayed by nozzle 8, so as to avoid that a large amount of coal ash is attached in the fluff on scraper 9, thereby reducing the service life and cleaning effect of scraper 9.

[0031] Further, the front side of ventilation pipe 2 is fixedly connected with the middle part of connecting frame 3, and the rear end of connecting frame 3 is fixedly connected with the front side end surface of fixed cylinder 7.

[0032] Further, opposite ends of the four scrapers 9 are connected with a plurality of connecting seats 25 through bolts, and opposite ends of the plurality of connecting seats 25 are fixedly connected with the outer side of the rotating shaft 22.

[0033] Further, the rotating shaft 22 is rotatably connected with the left and right side surfaces of the fixed frame 18 through bearings on both sides of the rotating shaft 22, and the right side of the rotating shaft 22 is fixedly connected with the gear one 21. The motor two 23 is drivingly connected with the rotating shaft 22 through the gear one 21 and the gear two 24. When a large amount of coal ash is attached to the fluff on the scraper 9, causing the cleaning effect to decrease, the user can control the electric push rod 16 to retract to drive the fixed frame 18 and the four scrapers 9 to move backward, and then control the motor two 23 to work to drive the rotating shaft 22 to rotate by ninety degrees to adjust the position of the four scrapers 9, so that the brand new scraper 9 is rotated to the front side of the rotating shaft 22 corresponding to the through slot 10, and then the electric push rod 16 is controlled to extend so that the brand new scraper 9 extends out of the through slot 10 and contacts the observation window, thereby prolonging the disassembly period of the observation window during maintenance of the device, effectively reducing the workload of maintenance personnel and improving the convenience of maintenance of the device.

[0034] Further, the gear one 21 is meshingly connected with the gear two 24, the gear two 24 is fixedly arranged on the output shaft of the motor two 23, and the right end of the motor two 23 is fixedly connected with the fixed frame 18.

[0035] Further, the rear end of the fixed frame 18 is fixedly connected with the front ends of the two electric push rods 16, and the rear ends of the two electric push rods 16 are fixedly connected with the rear side of the mounting cavity 17.

[0036] Further, the input ends of the two electric push rods 16 and the motor two 23 are electrically connected with the outer ring of the conductive slip ring 14, the inner ring of the conductive slip ring 14 is fixedly connected with the rear end of the outer side of the ventilation pipe 2, and the motor two 23 is a stepping motor. By arranging the conductive slip ring 14 on the ventilation pipe 2 and electrically connecting the conductive slip ring 14 with the electric push rod 16 and the motor two 23, the electric push rod 16 and the motor two 23 are kept in electrical connection with the external power supply and the controller when the rotating plate 4 drives the electric push rod 16 and the motor two 23 to rotate, avoiding the entanglement of the connecting wires.

[0037] Further, the upper surface of the rotating plate 4 is provided with an inspection groove 19 communicated with the mounting cavity 17 on the right side, the inspection groove 19 is sleeved with the bottom end of the cover plate 11, the upper end of the cover plate 11 is connected with the upper surface of the rotating plate 4 through bolts, the middle part of the rear surface of the rotating plate 4 is fixedly connected with the output shaft of the motor one 5, the rear end of the motor one 5 is fixedly connected with the bottom end of the support frame 6, the upper end of the support frame 6 is fixedly connected with the window frame of the observation window body 1, the left end of the mounting cavity 17 is provided with a threading hole 20 communicated with the connecting cavity 15, the threading hole 20 is provided on the left end of the mounting cavity 17 communicated with the connecting cavity 15, so that the power line of the electric push rod 16 and the motor two 23 can pass through the threading hole 20 and be connected with the conductive slip ring 14.

[0038] The working principle of the utility model is that when the inside of the observation window glass window is cleaned, the user can first control the electric push rod 16 to retract to drive the fixed frame 18 and the scraper 9 to move backward, so that the scraper 9 is separated from the glass window, then the user can connect the ventilation pipe 2 with the external fan, input the airflow into the ventilation cavity 12 by using the fan, the ventilation pipe 2 and the connecting pipe 13, blow off the attached coal ash on the observation window by using the airflow sprayed by the nozzle 8, control the motor one 5 to work to drive the rotating plate 4 to rotate and clean the inside of the observation window, then control the electric push rod 16 to extend to drive the front scraper 9 to extend out of the through groove 10 and contact the rear side of the observation window, at this time, the rotating plate 4 is used to drive the scraper 9 to rotate and clean the attached coal ash again, stop the motor one 5 and the fan after the glass window is cleaned.

[0039] When the front scraper 9 of the rotating shaft 22 is attached with a large amount of coal ash, the cleaning effect is reduced, the user can control the electric push rod 16 to retract to drive the fixed frame 18 and the four scrapers 9 to move backward, then control the motor two 23 to work to drive the rotating shaft 22 to rotate by 90 degrees by using the gear one 21 and the gear two 24, adjust the positions of the four scrapers 9, so that the unused scraper 9 is rotated to the front side of the rotating shaft 22 and corresponds to the through groove 10, then control the electric push rod 16 to extend, so that the new scraper 9 extends out of the through groove 10 and contacts the observation window, when the multiple scrapers 9 in the mounting cavity 17 are all contaminated, the user can disassemble the observation window body 1, take out the observation window body 1 and the rotating plate 4 from the coal feeder, then the user can disassemble the cover plate 11, disassemble and separate the scraper 9 and the connecting seat 25 through the inspection groove 19, and install the new scraper 9 and the connecting seat 25 by using the bolts.

[0040] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A coal feeder observation window cleaning device, comprising an observation window body (1), characterized in that: The middle part of the glass window of the observation window body (1) is fixedly connected to the front end of the fixing cylinder (7). The rear end of the fixing cylinder (7) is rotatably connected to the middle of the front side of the rotating plate (4) through a sealed bearing. The interior of the rotating plate (4) is provided with a ventilation cavity (12), a connecting cavity (15) and an installation cavity (17) from left to right. The installation cavity (17) is fitted with a fixing frame (18) and four scrapers (9). The front end of the scraper (9) on the front side passes through the through groove (10) and overlaps with the rear side of the glass window of the observation window body (1).

2. The ash removal device for the observation window of a coal feeder according to claim 1, characterized in that: Multiple nozzles (8) are fixedly installed on the left side of the front side of the rotating plate (4) and communicate with the ventilation cavity (12). The right end of the ventilation cavity (12) is fixedly connected to the left end of the connecting pipe (13).

3. The ash removal device for the observation window of a coal feeder according to claim 2, characterized in that: The right end of the connecting pipe (13) is rotatably connected to the rear end of the ventilation pipe (2) through a sealed bearing. The ventilation pipe (2) is sleeved in the middle of the fixed cylinder (7) and the ventilation pipe (2) and the fixed cylinder (7) are concentrically arranged.

4. The ash removal device for the observation window of a coal feeder according to claim 3, characterized in that: The front side of the ventilation pipe (2) is fixedly connected to the middle part of the connecting frame (3), and the rear end of the connecting frame (3) is fixedly connected to the front end face of the fixed cylinder (7).

5. The ash removal device for the observation window of a coal feeder according to claim 1, characterized in that: The opposite ends of the multiple scrapers (9) are respectively connected to multiple connecting seats (25) by bolts, and the opposite ends of the multiple connecting seats (25) are fixedly connected to the outer side of the rotating shaft (22).

6. The ash removal device for the observation window of a coal feeder according to claim 5, characterized in that: The two sides of the rotating shaft (22) are rotatably connected to the left and right sides of the fixed frame (18) respectively through bearings, and the right side of the rotating shaft (22) is fixedly connected to the gear (21).

7. The ash removal device for the observation window of a coal feeder according to claim 6, characterized in that: The gear one (21) meshes with the gear two (24), the gear two (24) is fixedly mounted on the output shaft of the motor two (23), and the right end of the motor two (23) is fixedly connected to the fixing frame (18).

8. The ash removal device for the observation window of a coal feeder according to claim 7, characterized in that: The rear end of the fixed frame (18) is simultaneously fixedly connected to the front end of the two electric push rods (16), and the rear ends of the two electric push rods (16) are fixedly connected to the rear side of the mounting cavity (17).

9. The ash removal device for the observation window of a coal feeder according to claim 8, characterized in that: The input ends of the two electric push rods (16) and the second motor (23) are electrically connected to the outer ring of the conductive slip ring (14). The inner ring of the conductive slip ring (14) is fixedly connected to the rear end of the outer side of the ventilation pipe (2). The second motor (23) is a stepper motor.

10. The ash removal device for the observation window of a coal feeder according to claim 1, characterized in that: The upper surface of the rotating plate (4) has a maintenance groove (19) on the right side that communicates with the mounting cavity (17). The maintenance groove (19) is sleeved with the bottom end of the cover plate (11). The upper end of the cover plate (11) is connected to the upper surface of the rotating plate (4) by bolts. The middle of the rear side of the rotating plate (4) is fixedly connected to the output shaft of the motor (5). The rear end of the motor (5) is fixedly connected to the bottom end of the support frame (6). The upper end of the support frame (6) is fixedly connected to the window frame of the observation window body (1). The left end of the mounting cavity (17) has a wire hole (20) that communicates with the connecting cavity (15).

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