Furnace door closing assembly of aluminum alloy preheating furnace

Abstract

The utility model discloses an aluminum alloy preheating furnace door closing assembly which comprises a power assembly and a furnace door for sealing a furnace opening, and a locking arm is fixedly arranged on the side, away from the furnace opening, of the furnace door. The power assembly is connected with the locking arm and drives the locking arm to move in the first direction. The first direction is the direction that the furnace door faces or deviates from the furnace opening. The preheating furnace is better in sealing performance, and energy consumption increase caused by loss of a large amount of heat in the preheating furnace is avoided; the temperature in the furnace is uniform, and the product quality is improved; the structure is more stable and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of forging preheating, in particular to a furnace door closing component of an aluminum alloy preheating furnace. Background Art

[0002] Before forging, forgings generally need to be preheated in a heating furnace. Therefore, a forging heating furnace is an indispensable processing equipment in forging. In order to save space, the furnace door on the existing forging heating furnace is usually in the form of a movable door, which fits with the furnace body of the forging heating furnace through a clamping mechanism.

[0003] CN203184569U discloses a trolley-type forging heating furnace, which is provided with a cylinder clamping device, which includes a cylinder fixedly connected to a furnace door column, a front end of a piston rod of the cylinder being hinged to a rear end of a pressure rod, a middle part of the pressure rod being hinged to a support on the column, and a front end of the pressure rod acting on an outer wall of the furnace door; when in use, the cylinder clamping device is started so that the front end of the pressure rod applies pressure to the furnace door into the furnace body, the furnace door is displaced into the furnace body by force, and the furnace door seals the furnace mouth to achieve a sealing effect.

[0004] The structural design of the above-mentioned public document connects one end of the pressure rod to the fulcrum of the forging heating furnace, pushing the furnace door and the furnace body to press tightly. Compared with the overall area of ​​the furnace door, the force application point and force application position of the fulcrum on the furnace door are limited, which can easily cause the part of the furnace door other than the fulcrum to be loosely connected with the furnace body. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide an aluminum alloy preheating furnace door closing component with better sealing performance, thereby avoiding a large amount of heat loss in the preheating furnace and increasing energy consumption; the temperature in the furnace is heated evenly and the product quality is improved; the structure is more stable and the service life is long.

[0006] In order to achieve the above technical effects, the technical solution of the utility model is:

[0007] A furnace door closing assembly for an aluminum alloy preheating furnace comprises a power assembly and a furnace door for sealing a furnace opening, wherein a locking arm is fixedly arranged on a side of the furnace door away from the furnace opening; the power assembly is connected to the locking arm and drives the locking arm to move along a first direction; the first direction is the direction of the furnace door toward or away from the furnace opening.

[0008] A preferred technical solution is that the locking arm includes a pressure rod and a connecting rod, the pressure rod is fixedly connected to the furnace door, and the connecting rod is connected between the pressure rod and the power assembly.

[0009] A preferred technical solution is that it also includes a first guide rail and a lifting device, the connecting rod is connected to the first guide rail and moves along the first guide rail, the power assembly is connected to the first guide rail; and the lifting device is connected to the furnace door.

[0010] A preferred technical solution is that the first guide rail includes a guide rail section I and a guide rail section II which are split and butt-jointed along the length direction, and the guide rail section II is connected between the power assembly and the locking arm.

[0011] A preferred technical solution is that it also includes furnace door columns, which are arranged on both sides of the furnace door, and the guide rail section I is fixedly connected to the furnace door columns.

[0012] A preferred technical solution is that it also includes a second guide rail, which is fixedly connected to the furnace door column and extends along the first direction, and the guide rail section II is connected to the second guide rail and moves along the second guide rail.

[0013] A preferred technical solution is that the guide rail section II is rotationally connected to the power assembly.

[0014] A preferred technical solution is that a side of the furnace door facing away from the furnace opening is provided with transverse reinforcing ribs and / or longitudinal reinforcing ribs, and the pressure rod is fixedly connected to the transverse reinforcing ribs and / or the longitudinal reinforcing ribs.

[0015] A preferred technical solution is to further include a support member, wherein the support member is arranged on a base surface directly below the furnace door in the vertical direction.

[0016] The preferred technical solution is that a crossbeam is connected between the top ends of the two furnace door columns, the lifting device is arranged on the crossbeam, and the lifting device is connected to the furnace door to control the furnace door to move in the vertical direction.

[0017] The advantages and beneficial effects of the utility model are as follows: by setting a power component and a locking arm, the power component drives the locking arm to drive the furnace door to move along a first direction, thereby realizing the opening and closing of the furnace door; the driving force provided by the power component is transmitted to the furnace door through the locking arm, and the larger the contact area between the furnace door and the locking arm, the larger the force-bearing surface on the furnace door.

[0018] On the one hand, the furnace door and the locking arm are subjected to force through surface contact, the furnace door abuts the furnace opening more tightly and has better sealing, thus avoiding a large amount of heat loss in the preheating furnace and causing an increase in energy consumption.

[0019] On the other hand, based on force transmission, the circumferential edges of the furnace door can be subjected to force, avoiding the situation where the edge of the furnace door away from the locking arm is not pressed tightly against the furnace mouth and the sealing effect of the circumferential edge of the furnace door is different, resulting in uneven heating in the furnace and affecting product quality.

[0020] The structure of the furnace door closing assembly of the utility model is more stable, the connection between the locking arm and the furnace door is not easily damaged by force, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the furnace door closing assembly of the aluminum alloy preheating furnace in the embodiment;

[0022] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 3 yes Figure 1 The main view of

[0024] Figure 4 yes Figure 1 A top view of the

[0025] Figure 5 It is a schematic diagram of the structure of the first guide rail when the furnace door and the furnace mouth are not pressed tightly;

[0026] Figure 6 It is a schematic diagram of the structure of the first guide rail when the furnace door and the furnace mouth are pressed tightly;

[0027] In the figure: 1. furnace door; 2. furnace mouth; 3. furnace door column; 4. power assembly; 5. support seat; 6. crossbeam; 7. lifting device;

[0028] 30, locking arm; 301, pressure rod; 302, connecting rod;

[0029] 40. first guide rail; 401. guide rail section I; 402. guide rail section II;

[0030] 50. second guide rail; 51. movable part;

[0031] 60. Transverse reinforcement ribs; 61. Longitudinal reinforcement ribs. DETAILED DESCRIPTION

[0032] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise specified, “plurality” means more than two; the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, etc., indicating directions or positional relationships, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] like Figure 1 As shown, an embodiment of a furnace door closing assembly for an aluminum alloy preheating furnace includes a power assembly 4 and a furnace door 1 that seals a furnace opening 2, and a locking arm 30 is fixedly arranged on the side of the furnace door 1 that is away from the furnace opening 2; the power assembly 4 is connected to the locking arm 30 and drives the locking arm 30 to move along a first direction; the first direction is the direction of the furnace door 1 toward or away from the furnace opening 2.

[0036] The furnace door 1 and the furnace opening 2 are opened and closed by arranging the locking arm 30 and the power assembly 4 .

[0037] The power assembly 4 drives the locking arm 30 to move in a first direction. When the power assembly 4 is extended, the furnace door 1 and the furnace opening 2 are in a separated state. When the power assembly 4 is retracted, the furnace door 1 and the furnace opening 2 are in a compressed state.

[0038] In this embodiment, there are four locking arms 30, two of which are respectively arranged on the left and right sides of the furnace door. The two locking arms on the same side of the furnace door are at the same distance from the power assembly along the first direction, ensuring the stability of the furnace door when it moves up and down in the vertical direction.

[0039] Optionally, the power component 4 is a pneumatic cylinder, an oil cylinder, etc.

[0040] like Figure 1-2 As shown, in another preferred embodiment, the locking arm 30 includes a pressure rod 301 and a connecting rod 302 , the pressure rod 301 is fixedly connected to the furnace door 1 , and the connecting rod 302 is connected between the pressure rod 301 and the power assembly 4 .

[0041] A pressure rod 301 is provided to increase the force-bearing area on the furnace door 1; a connecting rod 302 is provided to achieve the transmission of driving force.

[0042] like Figure 1-3 As shown, in another preferred embodiment, it also includes a first guide rail 40 and a lifting device 7, the connecting rod 302 is connected to the first guide rail 40 and moves along the first guide rail 40, the power assembly 4 is connected to the first guide rail 40; the lifting device 7 is connected to the furnace door 1.

[0043] A lifting device 7 is provided to provide a driving force for the furnace door 1 to move in the vertical direction; a first guide rail 40 is provided to provide a guiding function for the furnace door 1 to move in the vertical direction.

[0044] The connecting rod 302 is controlled to move along the first guide rail 40 by the lifting device 7, thereby driving the furnace door 1 connected to the connecting rod 302 to move along the first guide rail 40; the direction of movement along the first guide rail 40 is the vertical direction.

[0045] The first guide rail 40 is driven to move along the first direction by the power assembly 4 to realize the opening and closing of the furnace door 1 and the furnace opening 2 .

[0046] like Figure 5-6 As shown, in another preferred embodiment, the first guide rail 40 includes a guide rail section I 401 and a guide rail section II 402 which are split and connected along the length direction, and the guide rail section II 402 is connected between the power assembly 4 and the locking arm 30 .

[0047] In this embodiment, the guide rail section I 401 is fixed relative to the base surface.

[0048] In this embodiment, the furnace door 1 is initially lifted by a lifting device. To lock the furnace door 1, in the first stage, the furnace door 1 is lowered to a specified height by the lifting device 7; in the second stage, the guide rail section II 402 is driven by the power component 4 to move in the first direction, thereby driving the furnace door 1 connected to the locking arm 30 to move in the first direction.

[0049] The specified height is along the first direction, and the furnace door 1 can completely cover the furnace opening 2 .

[0050] like Figure 5 As shown, in the first stage, the furnace door 1 moves in the vertical direction, and at this time, the guide rail section I 401 and the guide rail section II 402 are butted against each other, so as to facilitate the transition of the locking arm 30 from the guide rail section I 401 to the guide rail section II 402 .

[0051] like Figure 6 As shown, in the second stage, the furnace door 1 moves along the first direction, and at this time, the guide rail section I 401 and the guide rail section II 402 are separated.

[0052] Preferably, Figure 5-6 As shown, the joint between the guide rail section I 401 and the guide rail section II 402 is beveled, and the beveled surface of the guide rail section I 401 faces the power assembly 4. Compared with the cross section, the beveled surface has a larger range for limiting the relative position between the guide rail section I 401 and the guide rail section II 402.

[0053] like Figure 1-3 As shown, in another preferred embodiment, it also includes furnace door columns 3, which are arranged on both sides of the furnace door 1, and the guide rail section I 401 is fixedly connected to the furnace door columns 3.

[0054] The furnace door column 3 is provided to fix the position of the guide rail section Ⅰ401 to ensure that the furnace door 1 only moves in a vertical direction during the movement along the guide rail section Ⅰ401, thereby preventing the furnace door 1 from shifting left and right.

[0055] like Figure 1-3 As shown, in another preferred embodiment, it also includes a second guide rail 50, which is fixedly connected to the furnace door column 3 and extends along the first direction, and the guide rail section II 402 is connected to the second guide rail 50 and moves along the second guide rail 50.

[0056] The second guide rail 50 is fixed at a limited position by the furnace door column 3, and the length direction of the second guide rail 50 is consistent with the first direction.

[0057] Optionally, the guide rail section II 402 is fixedly connected with a movable member 51 , and the movable member 51 is movably connected to the second guide rail 50 and moves along the length direction of the second guide rail 50 to achieve the approach and distance between the furnace door 1 and the furnace opening 2 .

[0058] The second guide rail 50 cooperates with the guide rail section II 402 to enable the furnace door 1 connected to the guide rail section II 402 to move along the first direction, thereby enabling the furnace door 1 and the furnace opening 2 to be opened and closed.

[0059] like Figure 2 , Figure 4 As shown, in another preferred embodiment, the guide rail section II 402 is rotationally connected to the power assembly 4.

[0060] When the connecting rod 302 moves along the guide rail section II 402 , it drives the guide rail section II 402 to move up and down. In order to limit the large-scale up and down movement of the guide rail section II 402 , in addition to being limited by the connected second guide rail 50 , it is also limited by the connected power assembly 4 .

[0061] The purpose of the rotational connection is to provide space for slight movement and deformation of the guide rail section II 402 in the vertical direction, and to provide a buffer force for the connecting rod 302 to move up and down along the guide rail section II 402 .

[0062] Optionally, the guide rail section II 402 is connected to the power assembly 4 via a pin or a rotating shaft.

[0063] like Figure 1-2 As shown, in another preferred embodiment, a side of the furnace door 1 facing away from the furnace opening 2 is provided with transverse reinforcing ribs 60 and / or longitudinal reinforcing ribs 61 , and the pressure rod 301 is fixedly connected to the transverse reinforcing ribs 60 and / or longitudinal reinforcing ribs 61 .

[0064] By connecting the pressure rod 301 with the reinforcing ribs, the driving force of the power assembly 4 can be transmitted along the pressure rod 301 to the transverse reinforcing ribs 60 or the longitudinal reinforcing ribs 61 of the furnace door 1, and then to the circumferential edge of the furnace door 1, thereby more comprehensively pressing the furnace mouth along the circumferential edge of the furnace door and improving the sealing of the furnace mouth.

[0065] like Figure 2 As shown, in another preferred embodiment, it further comprises a support member 5, which is arranged on a base surface directly below the furnace door 1 in the vertical direction.

[0066] A support member 5 is provided to provide support for the furnace door 1 when the lifting device 7 controls the furnace door 1 to descend. On the other hand, it serves as a reference for the furnace door 1 to descend to a specified position in a vertical direction. When the furnace door 1 descends to a specified distance, the lifting device 7 stops operating, the furnace door 1 stops descending, and the power assembly 4 starts working.

[0067] The specified distance is when the furnace door 1 is lowered to the point where the furnace door 1 can completely cover the furnace opening 2 along the first direction.

[0068] like Figure 1-2 As shown, in another preferred embodiment, a crossbeam 6 is connected between the top ends of the two furnace door columns 3, and a lifting device 7 is arranged on the crossbeam 6. The lifting device 7 is connected to the furnace door 1 to control the furnace door 1 to move in the vertical direction.

[0069] The lifting device 7 is arranged above the furnace door 1; in this embodiment, the lifting device 7 is connected to the furnace door 1 by a chain.

[0070] like Figure 1-6 As shown, the working process of the furnace door closing assembly of the aluminum alloy preheating furnace of the utility model is: the lifting device 7 drives the furnace door 1 connected thereto to move downward along the first guide rail 40, and when the furnace door 1 reaches a specified distance, the lifting device 7 stops running; the power component 4 works to drive the guide rail section II 402 connected to the locking arm 30 of the furnace door 1 along the length direction of the second guide rail 50, and finally realizes the locking of the furnace door 1 and the furnace mouth 2.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A door closing assembly for an aluminum alloy preheating furnace, characterized in that: The invention comprises a power assembly (4) and a furnace door (1) for sealing a furnace opening (2); a locking arm (30) is fixedly arranged on a side of the furnace door (1) facing away from the furnace opening (2); the power assembly (4) is connected to the locking arm (30) and drives the locking arm (30) to move along a first direction; the first direction is the direction in which the furnace door (1) is directed toward or away from the furnace opening (2).

2. The aluminum alloy preheating furnace door closing assembly according to claim 1, characterized in that: The locking arm (30) comprises a pressure rod (301) and a connecting rod (302); the pressure rod (301) is fixedly connected to the furnace door (1); and the connecting rod (302) is connected between the pressure rod (301) and the power assembly (4).

3. The aluminum alloy preheating furnace door closing assembly according to claim 2, characterized in that: It also includes a first guide rail (40) and a lifting device (7), wherein the connecting rod (302) is connected to the first guide rail (40) and moves along the first guide rail (40), and the power assembly (4) is connected to the first guide rail (40); and the lifting device (7) is connected to the furnace door (1).

4. The aluminum alloy preheating furnace door closing assembly according to claim 3, characterized in that: The first guide rail (40) comprises a guide rail section I (401) and a guide rail section II (402) which are split and butt-jointed along the length direction, and the guide rail section II (402) is connected between the power assembly (4) and the locking arm (30).

5. The aluminum alloy preheating furnace door closing assembly according to claim 4, characterized in that: It also includes furnace door columns (3), which are arranged on both sides of the furnace door (1), and the guide rail section I (401) is fixedly connected to the furnace door columns (3).

6. The aluminum alloy preheating furnace door closing assembly according to claim 5, characterized in that: It also includes a second guide rail (50), which is fixedly connected to the furnace door column (3) and extends along the first direction, and the guide rail section II (402) is connected to the second guide rail (50) and moves along the second guide rail (50).

7. The aluminum alloy preheating furnace door closing assembly according to claim 4, characterized in that: The guide rail section II (402) is rotationally connected to the power assembly (4).

8. The aluminum alloy preheating furnace door closing assembly according to claim 2, characterized in that: A transverse reinforcing rib (60) and / or a longitudinal reinforcing rib (61) is provided on the side of the furnace door (1) facing away from the furnace opening (2), and the pressure rod (301) is fixedly connected to the transverse reinforcing rib (60) and / or the longitudinal reinforcing rib (61).

9. The aluminum alloy preheating furnace door closing assembly according to claim 1, characterized in that: It also comprises a supporting member (5), wherein the supporting member (5) is arranged on a base surface directly below the furnace door (1) in the vertical direction.

10. The aluminum alloy preheating furnace door closing assembly according to claim 5, characterized in that: A crossbeam (6) is connected between the top ends of the two furnace door uprights (3), and the lifting device (7) is arranged on the crossbeam (6). The lifting device (7) is connected to the furnace door (1) to control the furnace door (1) to move in a vertical direction.

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