Self-weight pressing device for furnace door

Abstract

Furnace door lifting point pull rods are installed on the two sides of a furnace door, a driving shaft is installed at one ends of the furnace door lifting point pull rods, a first driven shaft and a second driven shaft are installed on the two sides of the driving shaft, and a first pull rod is connected between the first driven shaft and the driving shaft. A second pull rod is connected between the first driven shaft and the second driven shaft, one ends of the first driven shaft and the second driven shaft are connected with the furnace door, the other ends of the first driven shaft and the second driven shaft are connected with rotating arms, the rotating arms are provided with top wheels, and a rail is arranged on the furnace body. The self-gravity of the furnace door is matched with the connecting parts for use, so that the furnace door is tightly attached to the furnace mouth, the sealing effect is achieved, high-temperature gas in the furnace can be effectively prevented from escaping from the furnace mouth through tight sealing of the furnace door and the furnace mouth, energy is saved, the high-temperature gas can be prevented from escaping to damage equipment, and the device is simple, durable and low in maintenance rate.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace doors, in particular to a furnace door deadweight pressing device. Background Art

[0002] In the high-temperature heating process of the forging heating furnace, the sealing of the furnace door is crucial. If the furnace door and the furnace mouth cannot be sealed, it will be impossible to prevent the high-temperature gas in the furnace from escaping from the furnace mouth, causing energy waste. The escape of high-temperature gas may also damage the equipment.

[0003] There are many ways to tighten the furnace door by its own weight. Commonly used methods include tightening by self-weight springs, tightening by double-track self-weight, and tightening by installing inclined irons on the furnace door tracks. The above tightening methods have the problems of high cost, poor sealing, and track jamming.

[0004] Therefore, we propose a furnace door deadweight pressing device. Utility Model Content

[0005] The purpose of the utility model is to provide a furnace door deadweight pressing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-weight pressing device for a furnace door, comprising a furnace door, furnace door hanging point pull rods are symmetrically arranged on both sides of the furnace door, one end of the furnace door hanging point pull rod extends to the outside of the furnace door, and the other end is movably connected to a horizontal active shaft through a rotating shaft, the active shaft is perpendicular to the furnace door hanging point pull rod, a passive shaft one and a passive shaft two are arranged in parallel on both sides of the active shaft, a pull rod one is movably connected between the passive shaft one and the active shaft through a rotating shaft, a pull rod two is movably connected between the passive shaft one and the passive shaft two through a rotating shaft, one end of the passive shaft one and the passive shaft two are both fixedly connected to the furnace door, and the other end is connected to a rotating arm, a top wheel is arranged and installed at the end point of the rotating arm, a track is arranged on the furnace body, and the top wheel is arranged and installed in the track.

[0007] Preferably, a limit plate 1 and a limit plate 2 are horizontally arranged and installed between the active shaft and the passive shaft 1 in sequence, and grooves are provided at corresponding positions of the limit plate 1 and the limit plate 2, and the pull rod 1 can be stuck in the grooves.

[0008] Preferably, a limit plate three and a limit plate four are horizontally installed between the active shaft and the passive shaft 2 in sequence, and rectangular limit holes are opened at corresponding positions of the limit plate one, the limit plate two, the limit plate three and the limit plate four, and the pull rod two passes through the limit holes.

[0009] Preferably, the length and width of the limiting hole are both greater than the diameter of the second pull rod.

[0010] Preferably, the two sides of the pull rod 1 are respectively arranged on the opposite sides of the active shaft and the passive shaft 1.

[0011] Preferably, both sides of the pull rod 2 are respectively arranged on the same side of the passive shaft 1 and the passive shaft 2.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the furnace door is closed, the furnace door drives the active shaft to return and rotate due to its own gravity, and the rotation of the active shaft drives the pull rod 1 to rotate, and the rotation of the pull rod 1 drives the passive shaft 1 to rotate, and the rotation of the passive shaft 1 drives the pull rod 2 to rotate, and the rotation of the pull rod 2 drives the passive shaft 2 to rotate, and the rotation of the passive shaft 1 and the passive shaft 2 drives the rotating arm to rotate, and the rotating arm drives the top wheel at the end of the rotating arm to rotate, so that the furnace door and the furnace mouth fit tightly together to play a sealing role. The tight sealing between the furnace door and the furnace mouth can more effectively prevent the high-temperature gas in the furnace from escaping from the furnace mouth, which not only saves energy, but also can prevent the high-temperature gas from escaping and damaging the equipment. This device is simple and durable, and has a low maintenance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a front view of the utility model.

[0016] In the figure: 1, furnace door; 2, furnace door hanging point tie rod; 3, active shaft; 4, passive shaft 1; 5, passive shaft 2; 6, tie rod 1; 7, tie rod 2; 8, rotating arm; 9, top wheel; 10, limit plate 1; 11, limit plate 2; 12, limit plate 3; 13, limit plate 4; 14, groove; 15, limit hole; DETAILED DESCRIPTION

[0017] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] See also Figure 1 and 2 The utility model includes a furnace door 1, and furnace door hanging point pull rods 2 are symmetrically arranged on both sides of the furnace door 1. One end of the furnace door hanging point pull rod 2 extends outside the furnace door 1, and the other end is movably connected with a horizontal active shaft 3 through a rotating shaft. The active shaft 3 is perpendicular to the furnace door hanging point pull rod 2, and a passive shaft 1 4 and a passive shaft 2 5 are arranged in parallel on both sides of the active shaft 3. A pull rod 1 6 is movably connected between the passive shaft 1 4 and the active shaft 3 through a rotating shaft, and a pull rod 2 7 is movably connected between the passive shaft 1 4 and the passive shaft 2 5 through a rotating shaft. One end of the passive shaft 1 4 and the passive shaft 2 5 are fixedly connected to the furnace door 1, and the other end is connected with a rotating arm 8. The end point of the rotating arm 8 is provided with a top wheel 9, and a track is provided on the furnace body, and the top wheel 9 is provided and installed in the track.

[0020] The two sides of the pull rod 1 6 are respectively arranged on the different sides of the active shaft 3 and the passive shaft 1 4 , and the two sides of the pull rod 2 7 are respectively arranged on the same side of the passive shaft 1 4 and the passive shaft 2 5 .

[0021] Specifically, in the present embodiment, a group of grooves are provided on the limit plate 10 and the limit plate 2 11 for the furnace door hanging point pull rod 2 to pass through the limit plate 10 and the limit plate 2 11. The furnace door hanging point pull rod 2 is in the shape of an elongated strip, and the height of the furnace door hanging point pull rod 2 is lower than the height of the groove, so as to ensure that the furnace door hanging point pull rod 2 can pass through the groove and move freely. When the furnace door 1 needs to be opened, the furnace door hanging point pull rod 2 is connected to the winch, and when the furnace door hanging point pull rod 2 is pulled, the active shaft 3 will be driven to rotate. The two sides of the pull rod 1 6 are respectively mounted on the surface of the active shaft 3 and the passive shaft 1 4 through a rotating shaft, and one end is on the outside of the active shaft 3 and the other end is on the inside of the passive shaft 1 4. The rotation of the active shaft 3 drives the rotation of the passive shaft 1 4, and the rotating arm 8 at one end of the passive shaft 1 4 will also rotate together; the two sides of the pull rod 2 7 are also respectively mounted on the surface of the passive shaft 1 4 and the passive shaft 2 5 through a rotating shaft. The rotation of the passive shaft 1 4 drives the pull rod 2 7 to rotate, and the rotation of the pull rod 7 drives the passive shaft 2 5 to rotate, and the rotating arm 8 at one end of the passive shaft 2 5 will also rotate together, and the top wheels 9 at the end points of the upper and lower rotating arms 8 will rotate a certain angle to squeeze the inner wall of the track, and the reaction force of the inner wall of the track will make the furnace door 1 leave the furnace mouth, and a gap will be generated between the furnace door 1 and the furnace mouth, realizing horizontal displacement. At this time, with the help of external force, the top wheel 9 is allowed to move along the track to realize the vertical lifting of the furnace door 1.

[0022] A limit plate 10 and a limit plate 2 11 are horizontally arranged between the active shaft 3 and the passive shaft 4 in sequence. The limit plate 10 and the limit plate 2 11 are provided with grooves 14 at corresponding positions, and the pull rod 1 6 can be inserted into the grooves 14 .

[0023] A limit plate three 12 and a limit plate four 13 are horizontally installed between the active shaft 3 and the passive shaft 2 5 in sequence. Rectangular limit holes 15 are opened at corresponding positions of the limit plate 10, the limit plate 2 11, the limit plate 3 12 and the limit plate 4 13, and the pull rod 2 7 passes through the limit hole 15.

[0024] The length and width of the limiting hole are both greater than the diameter of the pull rod 2 7 .

[0025] Specifically, in this embodiment, the grooves 14 on the horizontal limit plate 10 and the limit plate 2 11 are rectangular with openings, and the pull rod 1 6 can be stuck in the groove 14 during the movement to limit the rotation of the pull rod 1 6, so as to limit the horizontal displacement distance between the furnace door 1 and the furnace mouth;

[0026] Similarly, the pull rod 2 7 is cylindrical, and the rectangular limiting holes 15 provided on the limiting plate 1 10, the limiting plate 2 11 and the limiting plate 3 12 also limit the horizontal displacement distance between the furnace door 1 and the furnace mouth;

[0027] The above grooves 14 and the limiting holes 15 cooperate with each other to jointly limit the horizontal displacement distance between the furnace door 1 and the furnace mouth to about 2-3 cm. After leaving 2-3 cm, the furnace door can freely realize vertical lifting.

[0028] The working principle of this utility model:

[0029] When the furnace door is closed, the furnace door 1 drives the active shaft 3 to return and rotate due to its own gravity. The rotation of the active shaft 3 drives the pull rod 1 6 to rotate. The rotation of the pull rod 1 6 drives the passive shaft 1 4 to rotate. The rotation of the passive shaft 4 drives the pull rod 2 7 to rotate. The rotation of the pull rod 2 7 drives the passive shaft 2 5 to rotate. At this time, the rotation of the passive shaft 1 4 and the passive shaft 2 5 both drive the rotating arm 8 to rotate. The rotating arm 8 drives the top wheel 9 at the end of the rotating arm 8 to rotate. The top wheel 9 rotates a certain angle to squeeze the outer wall of the track. The gravity of the furnace door itself makes the furnace door fit tightly against the furnace mouth to play a sealing role. The tight sealing between the furnace door and the furnace mouth can more effectively prevent the high-temperature gas in the furnace from escaping from the furnace mouth, which not only saves energy, but also can prevent the high-temperature gas from escaping and damaging the equipment. This device is simple and durable, and has a low maintenance rate.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A furnace door deadweight pressing device, comprising a furnace door (1), characterized in that: A furnace door hanging point pull rod (2) is symmetrically arranged on both sides of the furnace door (1), one end of the furnace door hanging point pull rod (2) extends outside the furnace door (1), and the other end is movably connected to a horizontal active shaft (3) through a rotating shaft, the active shaft (3) is perpendicular to the furnace door hanging point pull rod (2), and a passive shaft (4) and a passive shaft (5) are arranged in parallel on both sides of the active shaft (3), a pull rod (6) is movably connected between the passive shaft (4) and the active shaft (3) through a rotating shaft, and a pull rod (7) is movably connected between the passive shaft (4) and the passive shaft (5) through a rotating shaft, one end of the passive shaft (4) and the passive shaft (5) are fixedly connected to the furnace door (1), and the other end is connected to a rotating arm (8), and the end point of the rotating arm (8) is provided with a top wheel (9).

2. The furnace door deadweight pressing device according to claim 1, characterized in that: A limit plate 1 (10) and a limit plate 2 (11) are horizontally arranged and installed between the active shaft (3) and the passive shaft 1 (4) in sequence, and grooves (14) are provided at corresponding positions of the limit plate 1 (10) and the limit plate 2 (11), and the pull rod 1 (6) can be inserted into the groove (14).

3. The furnace door deadweight pressing device according to claim 2, characterized in that: A limit plate three (12) and a limit plate four (13) are horizontally arranged and installed between the active shaft (3) and the passive shaft two (5) in sequence, and rectangular limit holes (15) are opened at corresponding positions of the limit plate one (10), the limit plate two (11), the limit plate three (12) and the limit plate four (13), and the pull rod two (7) passes through the limit hole (15).

4. The furnace door deadweight pressing device according to claim 3, characterized in that: The length and width of the limiting hole (15) are both greater than the diameter of the second pull rod (7).

5. The furnace door deadweight pressing device according to claim 1, characterized in that: The two sides of the pull rod 1 (6) are respectively arranged on the opposite sides of the active shaft (3) and the passive shaft 1 (4).

6. The furnace door deadweight pressing device according to claim 1, characterized in that: The two sides of the second pull rod (7) are respectively arranged on the same side of the first passive shaft (4) and the second passive shaft (5).

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