Dismounting system for coal feeder access door

Abstract

The present disclosure relates to a kind of coal feeder maintenance door dismounting system, comprising: maintenance door, first connecting mechanism, second connecting mechanism and mobile support mechanism;Maintenance door is connected to the maintenance opening of coal feeder by the first connecting mechanism clamping connection;Mobile support mechanism is configured to be able to be connected by the second connecting mechanism clamping connection maintenance door, and mobile support mechanism can be close to or away from maintenance opening along the first direction, when maintenance door is located at working position, maintenance door clamping connection is connected to the maintenance opening of coal feeder, when maintenance door is located at maintenance position, maintenance door is separated from maintenance opening and is connected with mobile support mechanism by the second connecting mechanism, and with mobile support mechanism moves towards the direction away from maintenance opening.It is thus possible to quickly clamping fixation or unclamping separation of maintenance door and maintenance opening and by mobile support mechanism maintenance door is carried and away from maintenance opening, so as to solve the problem of maintenance door dismounting time-consuming and laborious, facilitate staff to enter coal feeder maintenance.

Description

Technical Field

[0001] This disclosure relates to the field of coal feeder maintenance door disassembly and assembly technology, specifically, to a coal feeder maintenance door disassembly and assembly system. Background Technology

[0002] A coal feeder used in a thermal power plant is a specialized device for transporting coal, conveying it from the raw coal hopper to the coal mill at a specific ratio and speed. A coal feeder typically consists of a feeding device, conveyor belt, feeding pipe, reducer, motor, and control system. During operation, coal enters through the feeding device, is conveyed and weighed by the conveyor belt, and then fed into the coal mill through the feeding pipe. Inspection doors are installed at both ends of the coal feeder. These doors are opened during regular maintenance and emergency repairs. The inspection doors require high sealing and explosion-proof capabilities, and are primarily sealed using multiple bolts and gaskets. Observation holes are provided on the doors to monitor the coal feeder's operation, including coal feeding. When conveying coal of poor quality or with high moisture content, blockages can easily occur at the feeder's inlet, outlet, and on the conveyor belt. Severe blockages necessitate opening both inspection doors for emergency handling; failure to address this promptly can lead to serious consequences such as coal supply interruption and shutdown.

[0003] In related technologies, the maintenance door of the coal feeder is positioned and fixed by multiple bolts. During maintenance, the large number of bolts makes maintenance and removal time-consuming and labor-intensive. At the same time, the maintenance door, once opened, relies on a single cantilever for support, and prolonged suspension can easily cause deformation. This further increases the time required for bolt calibration during installation, affecting the recovery speed of the coal mill. Summary of the Invention

[0004] The purpose of this disclosure is to provide a disassembly and assembly system for a coal feeder maintenance door, which can quickly disassemble and assemble the door to save time in emergency repairs of coal blockages, thereby at least partially solving the problems in the related technologies.

[0005] To achieve the above objectives, this disclosure provides a disassembly and assembly system for a coal feeder maintenance door, comprising: a maintenance door, a first connecting mechanism, a second connecting mechanism, and a movable support mechanism; the maintenance door is snapped and sealed to the maintenance port of the coal feeder via the first connecting mechanism; the movable support mechanism is configured to snap onto the maintenance door via the second connecting mechanism, and the movable support mechanism is capable of moving closer to or further away from the maintenance port in a first direction; the maintenance door includes a working position and a maintenance position; when the maintenance door is in the working position, the maintenance door is snapped onto the maintenance port of the coal feeder; when the maintenance door is in the maintenance position, the maintenance door is separated from the maintenance port and connected to the movable support mechanism via the second connecting mechanism, and moves away from the maintenance port along with the movable support mechanism.

[0006] Optionally, the first connecting mechanism includes a first snap-fit ​​component and a first mating component. There are multiple first snap-fit ​​components and first mating components, and they are arranged in a one-to-one correspondence. One of the first snap-fit ​​components and the first mating component is fixedly disposed on the inspection door, and the other of the first snap-fit ​​component and the first mating component is fixedly disposed on the inspection port. The first snap-fit ​​component and the first mating component cooperate to snap-fit ​​the inspection door and the inspection port.

[0007] Optionally, the first snap-fit ​​component is configured as a first buckle, the first mating component is configured as a first latch, and a plurality of the first snap-fit ​​components are arranged at intervals along the outer contour of the inspection door on the inspection door, and a plurality of the first mating components are arranged at intervals along the outer contour of the inspection port on the inspection port.

[0008] Optionally, the second connecting mechanism includes a second snap-fit ​​component and a second mating component. There are multiple second snap-fit ​​components and a one-to-one correspondence between them. One of the second snap-fit ​​components and the second mating component is fixedly disposed on the inspection door, and the other of the second snap-fit ​​component and the second mating component is fixedly disposed on the movable support mechanism. The second snap-fit ​​component and the second mating component cooperate to snap-fit ​​the inspection door to the movable support mechanism.

[0009] Optionally, the second latching member is constructed as a second buckle, the second mating member is constructed as a second latching seat, a plurality of second latching members avoid the first latching member and are all arranged at intervals along the outer contour of the inspection door on the inspection door, and a plurality of first mating members are arranged at intervals on the movable support mechanism.

[0010] Optionally, the mobile support mechanism includes a mobile trolley, the mobile trolley includes a support platform, the support platform is provided with a support frame extending along a second direction and a first drive assembly for driving the support frame to move closer to or away from the inspection port along a first direction, the second snap-fit ​​member is disposed on the support frame, and the first direction and the second direction are perpendicular to each other.

[0011] Optionally, the first drive assembly includes a lead screw and a drive component that is driven by the lead screw, and the bottom of the support frame is provided with a connecting seat, which is threadedly connected to the lead screw.

[0012] Optionally, the first drive assembly further includes two guide members extending in the same direction as the lead screw. The two guide members are disposed on the support platform and are respectively located on both sides of the lead screw. The two sides of the connecting seat are slidably sleeved on the guide members.

[0013] Optionally, the mobile support mechanism further includes a second drive assembly located below the support platform. The second drive assembly drives the support platform to move closer to or away from the mobile trolley along a second direction. The second drive assembly includes a base, a hydraulic cylinder, and a support arm. The base is fixedly connected to the bottom plate of the mobile trolley. One end of the support arm is hinged to the base, and the other end of the support arm is hinged to the support platform. The hydraulic cylinder is connected to the support arm and is used to drive the support arm to lift the support platform.

[0014] Optionally, the inspection door is provided with at least one observation window and a purging pipe for purging the observation window, and / or the side wall of the inspection door facing the inspection port is provided with a sealing strip.

[0015] The above technical solution utilizes a coal feeder maintenance door assembly / disassembly system comprising a maintenance door, a first connecting mechanism, a second connecting mechanism, and a movable support mechanism. The maintenance door is grounded and sealed to the coal feeder's maintenance port via the first connecting mechanism. The maintenance door is grounded and connected to the movable support mechanism via the second connecting mechanism. The movable support mechanism can move closer to or further away from the maintenance port in a first direction. Therefore, when the maintenance door is in the working position, it is securely connected to the coal feeder's maintenance port via the first connecting mechanism, preventing coal leakage. When the maintenance door requires maintenance... When the inspection door is in the inspection position, the movable support mechanism first approaches the inspection port and connects with the inspection door through the second connecting mechanism. At the same time, it releases the inspection door from the inspection port and moves the inspection door away from the inspection port by reversing the movement of the movable support mechanism. In this way, the inspection door can be quickly locked and fixed or released from the inspection port and the inspection door can be carried away from the inspection port by the movable support mechanism. This reduces the time-consuming and labor-intensive problem of inspection and dismantling caused by the inspection door being fixed by multiple bolts in related technologies, making it easier for staff to enter the coal feeder for inspection and improving the efficiency of inspection.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the mechanism for assembling the inspection door and inspection port provided in an exemplary embodiment of this disclosure;

[0019] Figure 2 This is a schematic diagram of the separation mechanism of the inspection door and the movable support mechanism provided in the exemplary embodiment of this disclosure;

[0020] Figure 3 This is a schematic diagram of the first position of the assembly of the access door and the movable support mechanism provided in the exemplary embodiment of this disclosure;

[0021] Figure 4 This is a schematic diagram of the second position of the assembly of the access door and the movable support mechanism provided in the exemplary embodiment of this disclosure;

[0022] Figure 5 This is a top view schematic diagram of the assembly mechanism of the inspection door and the movable support mechanism provided in the exemplary embodiment of this disclosure;

[0023] Figure 6 This is a side view schematic diagram of the mobile support mechanism provided in an exemplary embodiment of this disclosure.

[0024] Explanation of reference numerals in the attached figures

[0025] 1-Inspection door; 11-Observation window; 12-Purge pipe; 2-First connecting mechanism; 21-First snap-fit ​​component; 22-First mating component; 3-Second connecting mechanism; 31-Second snap-fit ​​component; 32-Second mating component; 4-Mobile support mechanism; 41-Mobile trolley; 42-Support platform; 43-Support frame; 431-Connecting seat; 432-; 44-First drive assembly; 441-Screw; 442-Guide component; 45-Second drive assembly; 451-Base; 452-Hydraulic cylinder; 453-Support arm; 5-Inspection port. Detailed Implementation

[0026] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0027] In this disclosure, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to the definition of the access door's usage status. For details on "first direction," please refer to [reference needed]. Figure 1 The X-direction shown, the "second direction" can be referred to in detail. Figure 1 The Y direction is shown. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not indicate sequence or importance. When the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0028] like Figures 1-6As shown, this disclosure provides a disassembly and assembly system for a coal feeder maintenance door, including: a maintenance door 1, a first connecting mechanism 2, a second connecting mechanism 3, and a movable support mechanism 4; the maintenance door 1 is grounded and sealed to the maintenance port 5 of the coal feeder through the first connecting mechanism 2; the movable support mechanism 4 is configured to be grounded and connected to the maintenance door 1 through the second connecting mechanism 3, and the movable support mechanism 4 can move closer to or further away from the maintenance port 5 in a first direction. The maintenance door 1 includes a working position and a maintenance position. When the maintenance door 1 is in the working position, the maintenance door 1 is grounded and connected to the maintenance port 5 of the coal feeder. When the maintenance door 1 is in the maintenance position, the maintenance door 1 is separated from the maintenance port 5 and connected to the movable support mechanism 4 through the second connecting mechanism 3, and moves away from the maintenance port 5 along with the movable support mechanism 4.

[0029] The above technical solution utilizes a disassembly and assembly system for the coal feeder maintenance door, comprising a maintenance door 1, a first connecting mechanism 2, a second connecting mechanism 3, and a movable support mechanism 4. The maintenance door 1 is securely connected to the coal feeder's maintenance port 5 via the first connecting mechanism 2. The maintenance door 1 is also securely connected to the movable support mechanism 4 via the second connecting mechanism 3. The movable support mechanism 4 can move closer to or further away from the maintenance port 5 in a first direction. Therefore, when the maintenance door 1 is in the working position, it is securely connected to the coal feeder's maintenance port 5 via the first connecting mechanism 2, preventing coal leakage. When the maintenance door 1 requires maintenance... When the inspection door 1 is in the maintenance position, the movable support mechanism 4 first approaches the inspection port 5 and connects with the inspection door 1 through the second connecting mechanism 3. At the same time, it releases the inspection door 1 from the inspection port 5 and moves the inspection door 1 away from the inspection port 5 by moving the movable support mechanism 4 in the opposite direction. In this way, the inspection door 1 can be quickly locked or released from the inspection port 5 and the inspection door 1 can be supported by the movable support mechanism 4 and moved away from the inspection port 5. This reduces the time-consuming and labor-intensive problem of maintenance and dismantling caused by the inspection door 1 being fixed by multiple bolts in related technologies, making it easier for staff to enter the coal feeder for maintenance and improving maintenance efficiency.

[0030] In some feasible embodiments, in order to facilitate the snap-fit ​​connection between the access door 1 and the access port 5, the first connecting mechanism 2 includes a first snap-fit ​​component 21 and a first mating component 22. There are multiple first snap-fit ​​components 21 and first mating components 22, and they are arranged in a one-to-one correspondence. One of the first snap-fit ​​components 21 and the first mating component 22 is fixedly installed on the access door 1, and the other of the first snap-fit ​​components 21 and the first mating component 22 is fixedly installed on the access port 5. The first snap-fit ​​components 21 and the first mating component 22 cooperate to snap-fit ​​the access door 1 and the access port 5. Specifically, the first snap-fit ​​component 21 can be configured as a first snap-fit, and the first mating component 22 can be configured as a first latch. The first latch is provided with a hook that mates with the first snap-fit. Multiple first snap-fits are arranged at intervals along the outer contour of the inspection door 1 on the inspection door 1, and multiple first latches are arranged at intervals along the outer contour of the inspection port 5 on the inspection port 5. Thus, when the inspection door 1 needs to be fixedly connected to the inspection port 5, multiple first snap-fits can be snapped onto the corresponding first latches. When the inspection door 1 needs to be disassembled, only the first snap-fits and the first latches need to be released. Thus, the snap-fit ​​engagement of the first snap-fits and the first latches can replace the fixing method of fixing the inspection door 1 to the inspection port 5 of the coal feeder by multiple bolts in the related technology, and can quickly realize the disassembly and assembly of the inspection door 1 and the inspection port 5.

[0031] In some feasible embodiments, to facilitate the engagement of the access door 1 with the movable support mechanism 4, the second connecting mechanism 3 includes a second engaging member 31 and a second mating member 32. There are multiple second engaging members 31 and second mating members 32, and they are arranged in a one-to-one correspondence. One of the second engaging members 31 and the second mating member 32 is fixedly disposed on the access door 1, and the other of the second engaging members 31 and the second mating member 32 is fixedly disposed on the movable support mechanism 4. The second engaging members 31 and the second mating member 32 cooperate to engage and connect the access door 1 with the movable support mechanism 4. Specifically, the second latching member 31 can be configured as a second buckle, and the second mating member 32 can be configured as a second latch. Multiple second buckles avoid the first buckle and are all arranged at intervals along the outer contour of the inspection door 1 on the inspection door 1. Multiple second latches are arranged at intervals on the movable support mechanism 4. In this way, when the inspection door 1 and the movable support mechanism 4 need to be latched together, they can be latched together by multiple second buckles and corresponding second latches. When the inspection door 1 and the movable support mechanism 4 need to be disassembled, it is only necessary to release the second buckles and the second latches.

[0032] It is understood that the above-described first latching member 21, configured as a first buckle mechanism, is illustrative. In other embodiments, the first latching member 21 can also be a retaining ring, which engages with the first card holder. Similarly, the above-described second latching member 31, configured as a second buckle mechanism, is illustrative. In other embodiments, the second latching member 31 can also be a retaining ring.

[0033] To facilitate the movement of the mobile support mechanism 4 towards or away from the access port 5 and its cooperation with the access door 1, in some feasible embodiments, the mobile support mechanism 4 includes a mobile trolley 41. The mobile trolley 41 may include a support platform 42, on which a support frame 43 extending in a second direction and a first drive assembly 44 driving the support frame 43 towards or away from the access port 5 in a first direction are provided. A second engaging member 31 is disposed on the support frame 43, and the first and second directions are perpendicular to each other. It is understood that the mobile trolley 41 may also include a vehicle body, on which four drive wheels are provided. The vehicle body may contain a built-in battery and a drive motor, which drives the four drive wheels forward or backward, allowing the mobile trolley 41 to move towards or away from the access port 5. The second engaging member 31 is fixed on the support frame 43 at a position corresponding to the second mating member 32. The first drive assembly 44 can drive the support frame 43 to move in the first direction, allowing the support frame 43 to approach the access door 1 and engage with it through the second engaging member 31 and the second mating member 32, thus engaging the access door 1 with the support frame. When maintenance is required, the maintenance door 1 is first separated from the maintenance opening 5, and the support frame 43 is moved away from the maintenance opening 5 by the reverse drive first drive assembly 44. When a larger movement distance is required, the entire moving trolley 41 can be moved away from the maintenance opening 5 to facilitate maintenance of the coal feeder. The support frame 43 can stably provide support for the maintenance door 1, avoiding the existing method of cantilevering the maintenance door 1 at the maintenance opening 5 during maintenance. Prolonged suspension can easily cause the maintenance door 1 to become misaligned, thereby increasing the disassembly and assembly time of the maintenance door 1 and reducing maintenance efficiency. In addition, the moving trolley 41 is also equipped with a controller and a control panel. The control panel can be used to control the overall movement of the moving trolley 41 and to control the first drive assembly 44 to drive the support frame 43 to move a preset distance.

[0034] To facilitate the movement of the support frame 43 closer to or further from the access port 5, in some feasible embodiments, the first drive assembly 44 includes a lead screw 441 and a drive component connected to the lead screw 441. The bottom of the support frame 43 is provided with a connecting seat 431, which is threadedly connected to the lead screw 441. Both ends of the lead screw 441 are rotatably connected to the support platform 42 via supports. The bottom end of the connecting seat 431 is threadedly connected to the lead screw 441 via an internal thread. The drive component can be a handle; thus, rotating the handle rotates the lead screw 441, causing the support frame 43 to move closer to or further from the access port 5. Alternatively, to facilitate the movement of the lead screw 441, the drive component can also be a motor; the forward and reverse rotation of the motor drives the lead screw 441 to rotate forward and reverse, thereby enabling the support frame 43 to move closer to or further from the access port 5.

[0035] To ensure smooth movement of the support frame 43, in some feasible embodiments, the first drive assembly 44 further includes two guide members 442 extending in the same direction as the lead screw 441. The two guide members 442 are disposed on the support platform 42 and located on both sides of the lead screw 441. The two sides of the connecting seat 431 are slidably sleeved on the guide members 442. The guide members 442 can be guide rods, which extend in the same direction as the lead screw 441. The connecting seat 431 is provided with guide grooves, so that the support frame 43 is slidably connected to the guide rods through the guide grooves. Thus, when the support frame 43 moves closer to or further away from the access port 5 under the drive of the drive member, the guide rods enable the support frame 43 to move smoothly.

[0036] To facilitate the adjustment of the lifting and lowering of the support frame 43, in some feasible embodiments, the mobile support mechanism 4 also includes a second drive assembly 45 located below the support platform 42. The second drive assembly 45 drives the support platform 42 to move closer to or away from the mobile trolley 41 in a second direction. The second drive assembly 45 includes a base 451, a hydraulic cylinder 452, and a support arm 453. The base 451 is fixedly connected to the base plate of the mobile trolley 41. One end of the support arm 453 is hinged to the base 451, and the other end of the support arm 453 is hinged to the support platform 42. The hydraulic cylinder 452 is connected to the support arm 453 and is used to drive the support arm 453 to lift the support platform 42. Thus, the hydraulic cylinder 452 drives the support arm 453 to tilt up to periodically support the platform 42, thereby raising the support frame 43 as a whole, so that the support frame 43 can be adapted to maintenance conditions at different heights.

[0037] To facilitate observation of the coal feeding conditions inside the coal feeder, in some feasible embodiments, the inspection door 1 is provided with at least one observation window 11 and a purging pipe 12 for purging the observation window 11. The observation window 11 is made of transparent acrylic material, and there are two observation windows 11 spaced apart along the length of the inspection door 1. In addition, to improve the sealing of the connection between the inspection door 1 and the inspection port 5, in some feasible embodiments, a sealing strip is provided on the side wall of the inspection door 1 facing the inspection port 5.

[0038] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0040] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A disassembly and assembly system for a coal feeder maintenance door, characterized in that, include: Inspection door, first connecting mechanism, second connecting mechanism, and movable support mechanism; The inspection door is connected to the inspection port of the coal feeder by the first connecting mechanism in a snap-fit ​​and sealed manner; The movable support mechanism is configured to engage with the access door via the second connecting mechanism, and the movable support mechanism can move closer to or further away from the access door along a first direction. The inspection door includes a working position and an inspection position. When the inspection door is in the working position, it is snapped into the inspection port of the coal feeder. When the inspection door is in the inspection position, it is separated from the inspection port and snapped into the movable support mechanism through the second connecting mechanism, and moves away from the inspection port along with the movable support mechanism. The first connecting mechanism includes a first snap-fit ​​component and a first mating component. There are multiple first snap-fit ​​components and first mating components, and they are arranged in a one-to-one correspondence. One of the first snap-fit ​​components and the first mating component is fixedly disposed on the inspection door, and the other of the first snap-fit ​​component and the first mating component is fixedly disposed on the inspection port. The first snap-fit ​​component and the first mating component cooperate to snap-fit ​​the inspection door and the inspection port. The first snap-fit ​​component is constructed as a first buckle, the first mating component is constructed as a first latch, and a plurality of the first snap-fit ​​components are arranged at intervals along the outer contour of the inspection door on the inspection door, and a plurality of the first mating components are arranged at intervals along the outer contour of the inspection port on the inspection port. The second connecting mechanism includes a second snap-fit ​​component and a second mating component. There are multiple second snap-fit ​​components and second mating components, and they are arranged in a one-to-one correspondence. One of the second snap-fit ​​components and the second mating component is fixedly disposed on the inspection door, and the other of the second snap-fit ​​component and the second mating component is fixedly disposed on the movable support mechanism. The second snap-fit ​​component and the second mating component cooperate to snap-fit ​​the inspection door to the movable support mechanism. The second snap-fit ​​component is constructed as a second buckle, the second mating component is constructed as a second latch, a plurality of second snap-fit ​​components avoid the first snap-fit ​​component and are all arranged at intervals along the outer contour of the inspection door on the inspection door, and a plurality of first mating components are arranged at intervals on the movable support mechanism. The mobile support mechanism includes a mobile trolley, the mobile trolley includes a support platform, the support platform is provided with a support frame extending along a second direction and a first drive assembly that drives the support frame to move closer to or away from the inspection port along a first direction, the second snap-fit ​​member is provided on the support frame, and the first direction and the second direction are perpendicular to each other.

2. The disassembly and assembly system for the coal feeder maintenance door according to claim 1, characterized in that, The first drive assembly includes a lead screw and a drive component that is connected to the lead screw. The bottom of the support frame is provided with a connecting seat, which is threadedly connected to the lead screw.

3. The disassembly and assembly system for the coal feeder maintenance door according to claim 2, characterized in that, The first drive assembly further includes two guide members extending in the same direction as the lead screw. The two guide members are disposed on the support platform and are respectively located on both sides of the lead screw. The two sides of the connecting seat are slidably sleeved on the guide members.

4. The disassembly and assembly system for the coal feeder maintenance door according to any one of claims 1-3, characterized in that, The mobile support mechanism further includes a second drive assembly located below the support platform. The second drive assembly drives the support platform to move closer to or away from the mobile trolley in a second direction. The second drive assembly includes a base, a hydraulic cylinder, and a support arm. The base is fixedly connected to the bottom plate of the mobile trolley. One end of the support arm is hinged to the base, and the other end of the support arm is hinged to the support platform. The hydraulic cylinder is connected to the support arm and is used to drive the support arm to lift the support platform.

5. The disassembly and assembly system for the coal feeder maintenance door according to claim 1, characterized in that, The inspection door is provided with at least one observation window and a purging pipe for purging the observation window, and / or The inspection door is provided with a sealing strip on the side wall facing the inspection opening.

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