Adjustable furnace chamber of forging heating furnace

Abstract

The utility model discloses an adjustable furnace chamber of a forging heating furnace, which comprises a heating furnace body and further comprises a cavity stacking mechanism, the cavity stacking mechanism comprises an L-shaped support frame, an electric hoist, a refractory top plate, a stacking plate, a connecting cylinder, a refractory mortar pipe and a heat-resistant rod, and the L-shaped support frame is locked and mounted at the top end of the heating furnace body through a bolt; an electric hoist is installed below a transverse frame plate at the top end of the L-shaped supporting frame, a cavity stacking mechanism is arranged at a furnace box of the heating furnace body, the cavity stacking mechanism forms an adjustable furnace cavity in the heating furnace body through a building block type stacking structure, and a worker can select a stacking plate close to the height position of a metal fitting to conduct inward pushing according to the height of the metal blank. The small furnace cavity of the heating furnace body is formed by matching with the descending refractory top plate, the small-size metal blank for forging and heating in the heating furnace body can be heated by the small-volume furnace cavity, and the problem of heat loss generated when the small-size metal blank is heated by the heating furnace body through a larger furnace cavity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of forging heating furnaces, in particular to an adjustable furnace cavity of a forging heating furnace. Background Art

[0002] Forging heating furnace is a power supply device that converts 50HZ industrial frequency AC into medium frequency, converts three-phase industrial frequency AC into DC after rectification, and then converts DC into adjustable medium frequency current through frequency conversion device, supplies medium frequency alternating current flowing through capacitor and induction coil, generates high-density magnetic lines in the induction coil, cuts the metal material contained in the induction coil, and generates large eddy current in the metal material. This eddy current also has some properties of medium frequency current, that is, the free electrons of the metal itself flow in the metal body with resistance to generate heat.

[0003] When the forging heating furnace in the prior art is heating, the inner cavity size of the forging heating furnace is fixed. When a blank that is significantly smaller than the inner cavity of the heating furnace is placed in the heating furnace, the space margin in the forging heating furnace is large, which will cause heat loss problems inside the forging heating furnace, thereby causing energy waste in the forging heating furnace. For this reason, we propose a forging heating furnace with an adjustable furnace cavity. Utility Model Content

[0004] The main purpose of the utility model is to provide an adjustable furnace chamber of a forging heating furnace. A stacking chamber mechanism is arranged at the furnace box of the heating furnace body. The stacking chamber mechanism is composed of an adjustable furnace chamber in the heating furnace body with a building block-type stacking structure. Workers can select stacking plates close to the height of metal accessories for inward push according to the height of metal blanks, and cooperate with the lowered refractory top plate to form a reduced furnace chamber of the heating furnace body. Small-sized metal blanks for forging heating in the heating furnace body can be heated by the small-volume furnace chamber, avoiding the problem of heat loss caused by the heating furnace body heating small-sized metal blanks with a larger furnace chamber, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A forging heating furnace with an adjustable furnace chamber comprises a heating furnace body and a stacking chamber mechanism, wherein the stacking chamber mechanism comprises an L-shaped support frame, an electric hoist, a refractory top plate, a stacking plate, a connecting tube, a refractory mud pipe and a heat-resistant rod, wherein the top of the heating furnace body is fastened with a bolt to install the L-shaped support frame, and an electric hoist is installed below the top cross frame plate of the L-shaped support frame, a lifting rope is wound at the electric hoist, and a fixed through hole is opened at the heating furnace body below the electric hoist, a refractory top plate is placed in the heating furnace body below the fixed through hole, and the lifting rope is wound along the The fixed through holes extend into the heating furnace body and are connected with the connecting holes on the upper surface of the refractory top plate, and stacked plates for symmetrically supporting the refractory top plate are stacked in sequence in the heating furnace body below the refractory top plate. Side holes filled with refractory mud pipes are opened at the furnace walls on both sides of the heating furnace body close to the stacked plates, and heat-resistant rods are provided at the refractory mud pipes to penetrate into the heating furnace body and welded to the embedded disk in the connecting tube. The connecting tube is welded to the outside of the plate surface of the stacked plates facing the side holes, and a stop ring is welded at the tube mouth of the connecting tube to limit the embedded disk from falling out, and a heat-resistant rod is inserted into the ring hole of the stop ring.

[0007] Furthermore, the outer rod end of the heat-resistant rod passing through the refractory mud pipe and the heating furnace body is covered with a heat insulation sleeve; the refractory rod covered with the heat insulation sleeve can be held by hand, which is convenient for pushing the heat-resistant rod.

[0008] Furthermore, the diameter of the ring hole of the stop ring is larger than the diameter of the heat-resistant rod, and smaller than the diameter of the embedded disk; the stop ring allows the embedded disk to be retained in the connecting tube after the heat-resistant rod passes through.

[0009] Furthermore, a space for placing connecting tubes and stacked plates is reserved between the two sides of the refractory top plate and the heating furnace body; when the refractory top plate is lowered, the connecting tubes and stacked plates can be close to the edges of the heating furnace body on both sides of the refractory top plate, so that the refractory top plate can be smoothly lowered.

[0010] Furthermore, the plate body of the refractory top plate is a hollow plate body, and two groups of connecting holes are symmetrically opened on the top of the refractory top plate, and a suspension rope is passed through and tied between the two groups of hole cavities of the connecting holes and the refractory top plate; the refractory top plate of the hollow plate body can be connected by cooperating with the suspension ropes passed through the connecting holes.

[0011] Furthermore, the bottom of the vertical frame plate of the L-shaped support frame has a base plate, and locking bolts are provided between the base plate and the top of the heating furnace body; the L-shaped support frame is locked to the top of the heating furnace body with the base plate at the bottom of its own vertical frame plate and bolts.

[0012] Furthermore, the refractory mud tube is clamped in the hole cavity of the side hole, and the tube length of the refractory mud tube is the same as the hole cavity length of the side hole, and refractory mud is applied at the connection between the refractory mud tube and the side hole; after the refractory mud tube and the hole cavity of the side hole are clamped with equal length, the refractory mud is applied to seal the contact surface between the refractory mud tube and the side hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model arranges a stacking cavity mechanism at the furnace box of the heating furnace body. The stacking cavity mechanism forms an adjustable furnace cavity with a building block-type stacking structure in the heating furnace body. Workers can select stacking plates close to the height of metal accessories for inward push according to the height of metal blanks, and cooperate with the lowered refractory top plate to form a reduced furnace cavity of the heating furnace body. Small-sized metal blanks for forging heating in the heating furnace body can be heated by the small-volume furnace cavity, thereby avoiding the problem of heat loss caused by the heating furnace body heating small-sized metal blanks with a larger furnace cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of an adjustable furnace chamber of a forging heating furnace.

[0016] Figure 2 It is an exploded view of a stacking cavity mechanism of an adjustable furnace cavity of a forging heating furnace according to the utility model.

[0017] Figure 3 The utility model is a schematic diagram of the disassembly of an embedded plate and a connecting tube of an adjustable furnace chamber of a forging heating furnace.

[0018] In the figure: 1. Heating furnace body; 2. Stacking chamber mechanism; 3. L-shaped support frame; 4. Electric hoist; 5. Lifting rope; 6. Fixed perforation; 7. Refractory top plate; 8. Connecting hole; 9. Stacking plate; 10. Connecting tube; 11. Side hole; 12. Refractory mud pipe; 13. Heat-resistant rod; 14. Insulation sleeve; 15. Embedded plate; 16. Stop ring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-3As shown, a forging heating furnace has an adjustable furnace chamber, including a heating furnace body 1, and also includes a stacking chamber mechanism 2, the stacking chamber mechanism 2 includes an L-shaped support frame 3, an electric hoist 4, a refractory top plate 7, a stacking plate 9, a connecting tube 10, a refractory mud pipe 12 and a heat-resistant rod 13, the top of the heating furnace body 1 is fastened with an L-shaped support frame 3 by bolts, and an electric hoist 4 is installed below the top cross frame plate of the L-shaped support frame 3, a lifting rope 5 is wound at the electric hoist 4, and a fixed through hole 6 is opened at the heating furnace body 1 below the electric hoist 4, a refractory top plate 7 is placed in the heating furnace body 1 below the fixed through hole 6, and the lifting rope 5 is wound along the fixed through hole 6. It extends into the heating furnace body 1 and is connected with the connecting hole 8 on the upper plate surface of the refractory top plate 7, and the heating furnace body 1 below the refractory top plate 7 is stacked with stacked plates 9 for symmetrically supporting the refractory top plate 7 in sequence. Side holes 11 filled with refractory mud pipes 12 are opened at the furnace walls on both sides of the heating furnace body 1 near the stacked plates 9, and heat-resistant rods 13 are provided at the refractory mud pipes 12 to penetrate into the heating furnace body 1 and welded to the embedded disk 15 in the connecting tube 10. The connecting tube 10 is welded to the outside of the plate surface of the stacked plates 9 facing the side holes 11, and the tube mouth of the connecting tube 10 is welded with a stop ring 16 for limiting the disengagement of the embedded disk 15, and the ring hole of the stop ring 16 is inserted with a heat-resistant rod 13.

[0021] The outer rod end of the heat-resistant rod 13 passing through the refractory mud pipe 12 and the heating furnace body 1 is covered with a heat insulation sleeve 14; the refractory rod 13 covered with the heat insulation sleeve 14 can be held by hand, which is convenient for pushing the heat-resistant rod 13.

[0022] The diameter of the ring hole of the stop ring 16 is larger than the diameter of the heat-resistant rod 13 and smaller than the diameter of the embedded disk 15 . The stop ring 16 allows the embedded disk 15 to be retained in the connecting tube 10 after the heat-resistant rod 13 passes through.

[0023] Among them, a space is reserved between the two sides of the refractory top plate 7 and the heating furnace body 1 to accommodate the connecting tube 10 and the stacked plates 9; when the refractory top plate 7 is lowered, the connecting tube 10 and the stacked plates 9 can be close to the edge of the heating furnace body 1 on both sides of the refractory top plate 7, so that the refractory top plate 7 can be smoothly lowered.

[0024] Among them, the plate body of the refractory top plate 7 is a hollow plate body, and two groups of connecting holes 8 are symmetrically opened on the top of the refractory top plate 7, and a suspension rope 5 is passed through and tied between the two groups of hole cavities of the connecting holes 8 and the refractory top plate 7; the refractory top plate 7 of the hollow plate body can be connected by matching the connecting holes 8 with the suspension rope 5.

[0025] Among them, the L-shaped support frame 3 has a base plate at the bottom of the vertical frame plate, and locking bolts are provided between the base plate and the top of the heating furnace body 1; the L-shaped support frame 3 is locked to the top of the heating furnace body 1 with the base plate at the bottom of its own vertical frame plate and bolts.

[0026] Among them, the refractory mud tube 12 is stuck in the hole cavity of the side hole 11, and the tube length of the refractory mud tube 12 is the same as the hole cavity length of the side hole 11, and refractory mud is applied at the connection between the refractory mud tube 12 and the side hole 11; after the refractory mud tube 12 and the hole cavity of the side hole 11 are equally long, the refractory mud is applied to seal the contact surface between the refractory mud tube 12 and the side hole 11.

[0027] It should be noted that the utility model is an adjustable furnace chamber of a forging heating furnace, a stacking chamber mechanism 2 is arranged at the furnace box of the heating furnace body 1, and a hoisting furnace box door panel can be installed at the frame plate near the furnace box mouth of the heating furnace body 1 for sealing. When a small-sized metal blank is placed in the heating furnace body 1, the worker can select a stacking plate 9 close to the height of the metal accessories according to the height of the metal blank, and then hold the heat-resistant rod 13 wrapped by the heat-insulating sleeve 14 and push it into the refractory mud pipe 12 in the side hole 11, and the heat-resistant rod 13 is pressed against the connecting tube 10 with the embedded plate 15 at the stop ring 16, so that the connecting tube 10 pushes the stacking plate 9 to move, and under the push of the heat-resistant rod 13, the stacking plates 9 of this layer and the stacking plates 9 of the next few layers are symmetrically pushed toward the small-sized metal blank to stack into a wall, and then the electric hoist 4 above the L-shaped support frame 3 can be powered on, and the lifting rope 5 wound around the electric hoist 4 can lower the refractory top plate 7 from the fixed through hole 6, so that the refractory The top plate 7 is pressed on the pushed out stacking plate 9. At this time, the small-sized metal blanks for forging heating in the heating furnace body 1 can be heated by the small-volume furnace cavity, avoiding the heating furnace body 1 from heating the small-sized metal blanks with a larger furnace cavity, and avoiding the problem of large heat loss in the heating furnace body 1. The stacking plates 9 can be moved towards or separated away from each other under the push belt of the heat-resistant rod 13, so that there is an adjustable furnace cavity in the heating furnace body 1. The L-shaped support frame 3, lifting rope 5, refractory top plate 7, stacking plate 9, connecting tube 10, heat-resistant rod 13, embedded plate 15 and stop ring 16 of the utility model all need to be made of refractory metal material. When the electric hoist 4 retracts the lifting rope 5, the refractory top plate 7 can be raised in height. At the same time, when the heat-resistant rod 13 is pulled outward, the stacking plates 9 can also pull the side furnace wall close to the heating furnace body 1. When the heat-resistant rod 13 is pulled out at the refractory mud pipe 12 of the side hole 11, it is surrounded by the refractory mud pipe 12, so that not much heat is lost at this place.

[0028] It should be noted that the utility model is a forging heating furnace with an adjustable furnace chamber. The components in the utility model are all components known to technical personnel in the field, and their structures and principles are all known to technical personnel through technical manuals or through conventional experimental methods.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A forging heating furnace with an adjustable furnace chamber, comprising a heating furnace body (1), characterized in that: The invention also comprises a stacking chamber mechanism (2), wherein the stacking chamber mechanism (2) comprises an L-shaped support frame (3), an electric hoist (4), a refractory top plate (7), a stacking plate (9), a connecting tube (10), a refractory mud pipe (12) and a heat-resistant rod (13); the top of the heating furnace body (1) is fastened with an L-shaped support frame (3) by bolts, and an electric hoist (4) is installed below the top cross frame plate of the L-shaped support frame (3); a lifting rope (5) is rolled up at the electric hoist (4), and a fixed through hole (6) is opened at the heating furnace body (1) below the electric hoist (4); a refractory top plate (7) is placed in the heating furnace body (1) below the fixed through hole (6); the lifting rope (5) extends into the heating furnace body (1) along the fixed through hole (6) and is in contact with the refractory top plate (7); The connecting holes (8) on the upper plate surface of the top plate (7) are connected by binding, and stacked plates (9) for symmetrically supporting the refractory top plate (7) are sequentially stacked in the heating furnace body (1) below the refractory top plate (7), and side holes (11) filled with refractory mud pipes (12) are opened at the furnace walls on both sides of the heating furnace body (1) close to the stacked plates (9), and heat-resistant rods (13) are inserted into the heating furnace body (1) at the refractory mud pipes (12) and welded to the embedded disk (15) in the connecting tube (10), and the connecting tube (10) is welded to the outside of the plate surface of the stacked plates (9) facing the side holes (11), and a stop ring (16) for limiting the embedded disk (15) from coming out is welded at the tube mouth of the connecting tube (10), and the heat-resistant rod (13) is inserted into the ring hole of the stop ring (16).

2. The adjustable furnace chamber of a forging heating furnace according to claim 1, characterized in that: The outer rod end of the heat-resistant rod (13) passing through the refractory mud pipe (12) and the heating furnace body (1) is covered with a heat insulation sleeve (14).

3. The adjustable furnace chamber of a forging heating furnace according to claim 1, characterized in that: The diameter of the ring hole of the stop ring (16) is larger than the diameter of the rod body of the heat-resistant rod (13), and the diameter of the ring hole of the stop ring (16) is smaller than the diameter of the disc body of the embedded disc (15).

4. The adjustable furnace chamber of a forging heating furnace according to claim 1, characterized in that: A space is reserved between the two sides of the refractory top plate (7) and the heating furnace body (1) to accommodate the connecting tube (10) and the stacked plates (9).

5. The adjustable furnace chamber of a forging heating furnace according to claim 1, characterized in that: The plate body of the fire-resistant top plate (7) is a hollow plate body, and two groups of connecting holes (8) are symmetrically opened on the top of the fire-resistant top plate (7), and a suspension rope (5) is passed through and tied between the two groups of hole cavities of the connecting holes (8) and the fire-resistant top plate (7).

6. The adjustable furnace chamber of a forging heating furnace according to claim 1, characterized in that: The bottom of the vertical frame plate of the L-shaped support frame (3) is provided with a base plate, and locking bolts are provided between the base plate and the top of the heating furnace body (1).

7. The adjustable furnace chamber of a forging heating furnace according to claim 1, characterized in that: The refractory mud pipe (12) is stuck in the hole cavity of the side hole (11), and the tube length of the refractory mud pipe (12) is the same as the hole cavity length of the side hole (11). Refractory mud is applied at the connection between the refractory mud pipe (12) and the side hole (11).

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