Pneumatic furnace door pressing structure

Abstract

The utility model relates to the technical field of combustion furnaces, in particular to a pneumatic furnace door pressing structure which comprises a supporting frame, a furnace door used for sealing a furnace body is arranged on the supporting frame in a sliding mode, a hoisting mechanism used for hoisting the furnace door is arranged on the upper end face of the supporting frame, and first pressing mechanisms are arranged at the upper end and the lower end of one side of the furnace body. The supporting frame is provided with a second pressing mechanism used in cooperation with the first pressing mechanism. A buffer mechanism in contact with the furnace door is arranged below the support frame; the first pressing mechanism comprises a first air cylinder and a push plate connected with the telescopic end of the first air cylinder and used for pressing the furnace door, the second pressing mechanism comprises a second air cylinder and a pressing rod connected with the telescopic end of the second air cylinder, and the pressing rod penetrates through the push plate. The pressing effect at the opening of the furnace body of the furnace door can be greatly improved, the sealing effect is further improved, the run-out phenomenon is prevented, the buffer structure at the bottom is used for buffering the furnace door when the weight of the furnace door is reduced, and the situation that the lower end face of the furnace door directly falls and deforms is prevented.

Description

Technical Field

[0001] The utility model relates to a pneumatic furnace door pressing structure, in particular to a pneumatic furnace door pressing structure, and belongs to the technical field of combustion furnaces. Background Art

[0002] Industrial furnace is an indispensable equipment in industrial metallurgical production. It is a heating equipment that can heat the objects or materials that need to be heated by burning fuel or converting electricity into heat. Industrial furnaces are also widely used, such as chemical industry, building materials, metallurgy, etc. Industrial furnaces have brought convenience to our lives.

[0003] The furnace body is sealed with a furnace door when in use. Most existing sealing methods use the gravity of the furnace door to achieve compression, which results in uneven force on the furnace door. It is easy to deform after a period of use. After deformation, the gravity compression is unstable, so the furnace door cannot fall to the bottom position, or the top of the furnace door bends outward, resulting in poor sealing and fire. The furnace door is too low, which may even affect the heating quality.

[0004] Therefore, it is urgent to improve the pneumatic furnace door clamping structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pneumatic furnace door clamping structure, which can greatly improve the clamping effect at the furnace door and furnace body opening, further improve the sealing effect, prevent fire leakage, and the furnace door uses the buffer structure at the bottom to buffer the furnace door when its own weight drops, preventing the lower end face of the furnace door from falling directly and deforming.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: a pneumatic furnace door clamping structure, including a support frame, a furnace door for sealing a furnace body is slidably arranged on the support frame, a hoisting mechanism for hoisting the furnace door is arranged on the upper end surface of the support frame, a first clamping mechanism is arranged on the upper and lower ends of one side of the furnace body, and a second clamping mechanism for cooperating with the first clamping mechanism is arranged on the support frame; a buffer mechanism in contact with the furnace door is arranged below the support frame;

[0007] The first clamping mechanism includes a first cylinder and a push plate connected to the telescopic end of the first cylinder and used to clamp the furnace door, and the second clamping mechanism includes a second cylinder and a pressure rod connected to the telescopic end of the second cylinder, and the pressure rod passes through the push plate.

[0008] Preferably, a cylinder push rod is provided at the telescopic end of the first cylinder, the push plate is fixedly connected to the cylinder push rod, the push plate extends to a side close to the support frame, a through hole for the pressure rod to pass through is opened on the push plate, a sleeve is provided on the push plate, and the sleeve is communicated with the through hole.

[0009] Preferably, a cylinder support plate for supporting the second cylinder is provided on the support frame, the telescopic end of the second cylinder is connected to a second push plate, and the pressure rod is arranged on the inner side of the second push plate and is used to penetrate the sleeve and the through hole.

[0010] Preferably, the furnace door includes a door body and sliding blocks arranged at the upper and lower ends of the door body, a movable guide rail is arranged on the inner side of the support frame, and a sliding groove is opened on the side of the sliding block close to the support frame, and the width of the sliding groove is greater than the width of the movable guide rail.

[0011] Preferably, the lifting mechanism includes a sprocket rotatably connected to the upper end of the support frame, a chain adapted to the sprocket, a counterweight block connected to one end of the chain, and a drive motor, and the end of the chain away from the counterweight block is connected to the upper end of the furnace door.

[0012] Preferably, an electric slide rail for driving the drive motor is disposed on the inner side surface of the upper end of the support frame, and the output end of the drive motor is connected to a second sprocket adapted to the chain.

[0013] Preferably, the buffer mechanism includes a base and a buffer plate connected by a compression spring, the upper end surface of the base is provided with a plurality of recessed grooves for installing the compression spring, the upper end of the compression spring is fixedly connected to the lower end surface of the buffer plate, and the upper end surface of the buffer plate is provided with a buffer rubber layer.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. When sealing the furnace body, the driving motor is used to drive the second sprocket to rotate, thereby driving the chain to move. While the chain is moving, the sprocket will also rotate, thereby driving the furnace door to descend and seal. After the furnace door is completely lowered, the first cylinder is contracted, and the cylinder push rod is used to drive the push plate to approach the furnace door and fit tightly to achieve preliminary sealing of the furnace door and the furnace body. Then, the second cylinder is extended to drive the second push plate and the pressure rod to be pushed into the sleeve and the through hole until they are against the furnace door, thereby achieving complete sealing of the furnace door and the furnace body. The double-pressure mechanism is adopted to greatly improve the sealing effect of the furnace door compression. Compared with the traditional sealing method, the new type will not easily cause the furnace door to be distorted, thereby preventing the occurrence of fire. In addition, the furnace door uses the buffer structure at the bottom when its own weight drops to buffer the furnace door, thereby preventing the lower end face of the furnace door from directly falling and deforming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the clamping mechanism of the utility model;

[0018] Figure 2 It is the front view of the utility model;

[0019] Figure 3 For the utility model Figure 2 A magnified schematic diagram;

[0020] Figure 4 It is a schematic diagram of the hoisting mechanism of the utility model;

[0021] Figure 5 It is a partial front view schematic diagram of the utility model;

[0022] Figure 6 It is a schematic diagram of a furnace door of the present utility model.

[0023] In the figure, 1-support frame; 2-furnace door; 201-door body; 3-hoisting mechanism; 4-furnace body; 5-first clamping mechanism; 6-second clamping mechanism; 7-buffer mechanism; 701-base; 702-compression spring; 703-buffer plate; 704-recessed groove; 8-first cylinder; 9-push plate; 10-second cylinder; 11-pressure rod; 12-cylinder push rod; 13-through hole; 14-cylinder support plate; 15-second push plate; 16-sleeve; 17-movable guide rail; 18-sliding block; 19-slide groove; 20-sprocket; 21-chain; 22-counterweight block; 23-drive motor; 24-electric slide rail; 25-second sprocket. DETAILED DESCRIPTION

[0024] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] like Figure 1-Figure 6As shown, the pneumatic furnace door pressing structure provided in this embodiment includes a support frame 1, on which a furnace door 2 for sealing a furnace body 4 is slidably arranged, the furnace door 2 includes a door body 201 and sliding blocks 18 arranged at the upper and lower ends of the door body 201, the inner side surface of the support frame 1 is provided with a movable guide rail 17, and a sliding groove 19 is provided on the side of the sliding block 18 close to the support frame 1, and the groove width of the sliding groove 19 is greater than the width of the movable guide rail 17, and the movable guide rail 17 only serves as an auxiliary limit sliding of the furnace door, and the groove width of the sliding groove 19 is greater than the width of the movable guide rail 17, so that the furnace door 2 can be pressed and sealed as a whole toward the furnace body 4 later;

[0026] The upper end surface of the support frame 1 is provided with a hoisting mechanism 3 for hoisting the furnace door 2, wherein the hoisting mechanism 3 comprises a sprocket 20 rotatably connected to the upper end of the support frame 1, a chain 21 adapted to the sprocket 20, a counterweight block 22 connected to one end of the chain 21, and a driving motor 23, and one end of the chain 21 away from the counterweight block 22 is connected to the upper end of the furnace door 2;

[0027] Furthermore, an electric slide rail 24 for driving the drive motor 23 is provided on the inner side surface of the upper end of the support frame 1. The output end of the drive motor 23 is connected to a second sprocket 25 adapted to the chain 21. When the hoisting mechanism 3 drives the furnace door 2 to descend and seal, the drive motor 23 is used to drive the second sprocket 25 to rotate, thereby driving the chain 21 to move. At the same time, due to the setting of the counterweight block 22, the sprocket 20 will also rotate while the chain 21 moves, so that the chain 21 always keeps a force state. When the furnace door 2 needs to be raised, the electric slide rail 24 is used to drive the drive motor 23 to slide, so that the second sprocket 25 is separated from the chain 21, and the weight of the counterweight block 22 itself will automatically pull the furnace door 2 to rise;

[0028] A first clamping mechanism 5 is provided at the upper and lower ends of one side of the furnace body 4, and a second clamping mechanism 6 for use in conjunction with the first clamping mechanism 5 is provided on the support frame 1; the first clamping mechanism 5 includes a first cylinder 8 and a push plate 9 connected to the telescopic end of the first cylinder 8 and used to clamp the furnace door 2, and the second clamping mechanism 6 includes a second cylinder 10 and a pressure rod 11 connected to the telescopic end of the second cylinder 10, and the pressure rod 11 passes through the push plate 9;

[0029] Furthermore, a cylinder push rod 12 is provided at the telescopic end of the first cylinder 8, and a push plate 9 is fixedly connected to the cylinder push rod 12. The push plate 9 extends to a side close to the support frame 1, and a through hole 13 for the pressure rod 11 to pass through is opened on the push plate 9. A sleeve 16 is provided on the push plate 9, and the sleeve 16 is communicated with the through hole 13. The sleeve 16 can improve the stability of the pressure rod 11 when it is squeezed;

[0030] Furthermore, a cylinder support plate 14 for supporting the second cylinder 10 is provided on the support frame 1, and a second push plate 15 is connected to the telescopic end of the second cylinder 10. The pressure rod 11 is provided inside the second push plate 15 and is used to penetrate the sleeve 16 and the through hole 13, so that the pressure rod 11 can abut against the furnace door 2, further improving the sealing effect of the furnace door 2.

[0031] A buffer mechanism 7 in contact with the furnace door 2 is arranged below the support frame 1; the buffer mechanism 7 includes a base 701 and a buffer plate 703 connected by a compression spring 702, and a plurality of recessed grooves 704 for installing the compression spring 702 are provided on the upper end surface of the base 701, and the upper end of the compression spring 702 is fixedly connected to the lower end surface of the buffer plate 703, and a buffer rubber layer is arranged on the upper end surface of the buffer plate 703. When the furnace door 2 descends by its own weight to seal the furnace body 4, the lower end surface of the furnace door 2 contacts the buffer plate 703, and a buffer effect is achieved by the arrangement of the buffer rubber layer and a plurality of compression springs 702.

[0032] like Figure 1-Figure 6 As shown, the principle of the pneumatic furnace door clamping structure provided in this embodiment is as follows: when the furnace body 4 is sealed, the driving motor 23 is used to drive the second sprocket 25 to rotate, thereby driving the chain 21 to move. At the same time, due to the setting of the counterweight block 22, the sprocket 20 will also rotate while the chain 21 moves, thereby driving the furnace door 2 to descend and seal. After the furnace door 2 is completely lowered, the bottom will be buffered by the buffer mechanism 7. At the same time, by utilizing the contraction of the first cylinder 8, the cylinder push rod 12 is used to drive the push plate 9 to approach the furnace door 2 and fit tightly, thereby achieving a preliminary seal between the furnace door 2 and the furnace body 4. After that, by utilizing the extension of the second cylinder 10, the second push plate 15 and the pressure rod 11 are driven to be pushed into the sleeve 16 and the through hole 13 until they are against the furnace door 2, thereby achieving a complete seal between the furnace door 2 and the furnace body 4, so that it can further improve the sealing effect of the compression of the furnace door 2.

[0033] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0034] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0035] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A pneumatic furnace door pressing structure, comprising a support frame (1), characterized in that: A furnace door (2) for sealing the furnace body (4) is slidably arranged on the support frame (1); a hoisting mechanism (3) for hoisting the furnace door (2) is arranged on the upper end surface of the support frame (1); a first clamping mechanism (5) is arranged at the upper and lower ends of one side of the furnace body (4); a second clamping mechanism (6) for cooperating with the first clamping mechanism (5) is arranged on the support frame (1); a buffer mechanism (7) in contact with the furnace door (2) is arranged below the support frame (1); The first clamping mechanism (5) comprises a first cylinder (8) and a push plate (9) connected to the telescopic end of the first cylinder (8) and used to clamp the furnace door (2); the second clamping mechanism (6) comprises a second cylinder (10) and a pressure rod (11) connected to the telescopic end of the second cylinder (10); the pressure rod (11) passes through the push plate (9).

2. The pneumatic furnace door pressing structure according to claim 1, characterized in that: The telescopic end of the first cylinder (8) is provided with a cylinder push rod (12), the push plate (9) is fixedly connected to the cylinder push rod (12), the push plate (9) extends to a side close to the support frame (1), the push plate (9) is provided with a through hole (13) for the pressure rod (11) to pass through, and the push plate (9) is provided with a sleeve (16), and the sleeve (16) is communicated with the through hole (13).

3. The pneumatic furnace door pressing structure according to claim 2 is characterized in that: The support frame (1) is provided with a cylinder support plate (14) for supporting the second cylinder (10); the telescopic end of the second cylinder (10) is connected to a second push plate (15); the pressure rod (11) is arranged on the inner side of the second push plate (15) and is used to penetrate the sleeve (16) and the through hole (13).

4. The pneumatic furnace door pressing structure according to claim 1, characterized in that: The furnace door (2) comprises a door body (201) and sliding blocks (18) arranged at the upper and lower ends of the door body (201); a movable guide rail (17) is arranged on the inner side surface of the support frame (1); a sliding groove (19) is provided on a side of the sliding block (18) close to the support frame (1); and the groove width of the sliding groove (19) is greater than the width of the movable guide rail (17).

5. The pneumatic furnace door pressing structure according to claim 1, characterized in that: The hoisting mechanism (3) comprises a sprocket (20) rotatably connected to the upper end of the support frame (1), a chain (21) adapted to the sprocket (20), a counterweight (22) connected to one end of the chain (21), and a drive motor (23); one end of the chain (21) away from the counterweight (22) is connected to the upper end of the furnace door (2).

6. The pneumatic furnace door pressing structure according to claim 5, characterized in that: An electric slide rail (24) for driving the drive motor (23) is arranged on the inner side surface of the upper end of the support frame (1); the output end of the drive motor (23) is connected to a second sprocket (25) adapted to the chain (21).

7. The pneumatic furnace door pressing structure according to claim 1, characterized in that: The buffer mechanism (7) comprises a base (701) and a buffer plate (703) connected via a compression spring (702); the upper end surface of the base (701) is provided with a plurality of recessed grooves (704) for mounting the compression spring (702); the upper end of the compression spring (702) is fixedly connected to the lower end surface of the buffer plate (703); and the upper end surface of the buffer plate (703) is provided with a buffer rubber layer.

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