Quenching furnace for heat treatment

Abstract

The utility model relates to the technical field of quenching furnaces, and discloses a quenching furnace for heat treatment, which comprises a furnace body and a furnace door, a workbench is arranged in the furnace body, a heat insulation plate matched with the furnace door is fixedly mounted in the furnace body, two groups of racks are symmetrically mounted at the bottom of the workbench, a movable rod is rotatably mounted in the furnace body, and the movable rod is rotatably mounted in the furnace body. The movable rod is fixedly provided with two sets of gears matched with the racks, and the movable rod is fixedly provided with two sets of rope wheels. A metal workpiece is placed on the workbench and sent into the furnace body to be heated, after heating is completed, the furnace door is pulled upwards, the furnace door drives the rope wheel to rotate through the connecting rope, the rope wheel drives the gear to rotate through the movable rod, the gear drives the rack to move, and then the workbench is driven to move; and a worker does not need to clamp the workpiece out of the furnace body, so that the safety of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of quenching furnaces, and in particular to a quenching furnace for heat treatment. Background Art

[0002] The quenching furnace is a key equipment in the heat treatment process, used to quickly cool metal workpieces and improve their hardness and strength. Its characteristics include various heating methods, flexible cooling medium selection, advanced temperature and speed control systems, well-designed workpiece fixtures and safety equipment, and efficient and environmentally friendly energy utilization. Choosing a suitable quenching furnace requires consideration of the workpiece material, shape, size and heat treatment effect.

[0003] With regard to the above-mentioned related technologies, the inventors believe that after the existing quenching furnace has finished heating the workpiece, since the temperature inside the furnace body and the temperature of the metal workpiece itself are both high, and the metal workpiece is located inside the furnace body, when unloading the material, it is necessary to manually use a long clamp to reach into the furnace body and clamp the workpiece out, which is very likely to cause burns to the staff and lacks certain practicality.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that a metal workpiece is located inside a furnace body and a longer clamping member needs to be used manually to extend into the furnace body and clamp the workpiece out when unloading, the present application provides a quenching furnace for heat treatment.

[0006] The present application provides a quenching furnace for heat treatment using the following technical solutions:

[0007] A quenching furnace for heat treatment comprises a furnace body and a furnace door, wherein a workbench is arranged in the furnace body, a heat insulation plate matched with the furnace door is fixedly installed in the furnace body, two groups of racks are symmetrically installed at the bottom of the workbench, a movable rod is rotatably installed in the furnace body, two groups of gears respectively matched with the racks are fixedly installed on the movable rod, two groups of through holes are symmetrically opened on the heat insulation plate, two groups of rope pulleys are fixedly installed on the movable rod, and a driving mechanism connected with the rope pulley is arranged on the furnace door.

[0008] Preferably, the driving mechanism comprises two groups of connecting ropes fixedly mounted on the bottom of the furnace door, and the connecting ropes pass through the through holes and are wound around the rope pulley.

[0009] Preferably, two groups of support plates cooperating with the heat insulation plates are fixedly installed in the furnace body, convex grooves are provided on the support plates, convex strips cooperating with the convex grooves are fixedly installed on the workbench, and a plurality of heating tubes are fixedly installed on the support plates.

[0010] Preferably, a buffer cavity is provided on the heat insulation board, and support grooves communicating with the buffer cavity are provided on both sides of the heat insulation board.

[0011] Preferably, a stopper cooperating with the rack is provided in the buffer cavity, and support bars cooperating with the support groove are fixedly mounted on both sides of the stopper.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The metal workpiece is placed on a workbench and sent into the furnace for heating. When the heating is completed, the furnace door is pulled upwards, and the furnace door drives the pulley to rotate through the connecting rope. The pulley drives the gear to rotate through the movable rod, and the gear drives the rack to move, thereby driving the workbench to move and remove it from the furnace. There is no need for workers to clamp the workpiece out of the furnace, which improves the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0015] Figure 2 is a schematic diagram of the structure inside the furnace body of the application embodiment;

[0016] Figure 3 is a cross-sectional view of a furnace body of an embodiment of the application;

[0017] Figure 4 2 is a cross-sectional view of a heat insulation board according to an embodiment of the present invention.

[0018] Explanation of the accompanying drawings: 1. furnace body; 2. furnace door; 3. workbench; 4. heat insulation board; 5. rack; 6. movable rod; 7. gear; 8. through hole; 9. pulley; 10. connecting rope; 11. support plate; 12. convex bar; 13. heating tube; 14. buffer chamber; 15. support groove; 16. block; 17. support bar. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application embodiment discloses a quenching furnace for heat treatment. Figure 1-4A quenching furnace for heat treatment comprises a furnace body 1 and a furnace door 2. A workbench 3 is arranged in the furnace body 1. A heat insulation board 4 matching with the furnace door 2 is fixedly installed in the furnace body 1. Two groups of racks 5 are symmetrically installed at the bottom of the workbench 3. A movable rod 6 is rotatably installed in the furnace body 1. Two groups of gears 7 matching with the racks 5 are fixedly installed on the movable rod 6. Two groups of through holes 8 are symmetrically opened on the heat insulation board 4. Two groups of rope pulleys 9 are fixedly installed on the movable rod 6. A driving mechanism connected with the rope pulley 9 is arranged on the furnace door 2. The driving mechanism comprises two groups of connecting ropes 10 fixedly installed at the bottom of the furnace door 2. The connecting ropes 10 pass through the through holes 8 and are wound around the rope pulleys 9. Two groups of supporting plates 11 matching with the heat insulation board 4 are fixedly installed in the furnace body 1. The supporting plates 11 are all provided with convex grooves. A convex strip 12 matching with the convex groove is fixedly installed on the workbench 3. A plurality of heating tubes 13 are fixedly installed on the supporting plate 11.

[0021] By adopting the above technical solution, the metal workpiece is placed on the workbench 3 and sent into the furnace body 1 for heating. When the heating is completed, the furnace door 2 is pulled upward by one hand, and the furnace door 2 drives the rope wheel 9 to rotate through the connecting rope 10, so that Figure 3 From the perspective of , since the connecting rope 10 is wound around the pulley 9 counterclockwise, the connecting rope 10 drives the pulley 9 to rotate counterclockwise, and the pulley 9 drives the gear 7 to rotate through the movable rod 6, and drives the rack 5 to move through the gear 7, thereby driving the workbench 3 to move and move it out of the furnace body 1, thereby exposing the workpiece to the outside of the furnace body 1, and then using the other hand to take out the workpiece on the workbench 3, there is no need for the staff to clamp the workpiece out of the furnace body 1, which improves the safety of the device, and by providing a heat insulation board 4, the gap between the furnace door 2 and the workbench 3 can be filled to prevent a large amount of heat loss.

[0022] Reference Figure 4 A buffer cavity 14 is provided on the heat insulation board 4, and support grooves 15 communicating with the buffer cavity 14 are provided on both sides of the heat insulation board 4. A stopper 16 cooperating with the rack 5 is provided in the buffer cavity 14, and support bars 17 cooperating with the support grooves 15 are fixedly installed on both sides of the stopper 16;

[0023] By adopting the above technical solution, when the gear 7 drives the rack 5 to move, the rack 5 will move synchronously with the workbench 3. Since there is a gap between the workbench 3 and the furnace door 2, the workbench 3 will not be hindered in its travel. When the rack 5 moves, it will push the stopper 16 to move until the stopper 16 is pushed out of the buffer chamber 14. Since the stopper 16 and the rack 5 adopt an integrated molding technology, the function of the stopper 16 is to close the travel space of the rack 5 to ensure the sealing of the furnace body 1, so that the rack 5 will not be hindered in its travel when moving.

[0024] The implementation principle of a quenching furnace for heat treatment in an embodiment of the present application is as follows: when heating is completed, the furnace door 2 is pulled upward, and the furnace door 2 drives the rope pulley 9 to rotate through the connecting rope 10, and the rope pulley 9 drives the gear 7 to rotate through the movable rod 6, and the gear 7 drives the rack 5 to move, thereby driving the workbench 3 to move and move it out of the furnace body 1. There is no need for the staff to clamp the workpiece out of the furnace body 1, which improves the safety of the device. When heating the next workpiece, the metal workpiece is placed on the workbench 3, and then the rack 5 is manually moved, and the rack 5 drives the workbench 3 to reset, and then the heating tube 13 can be turned on for heating.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quenching furnace for heat treatment, comprising a furnace body (1) and a furnace door (2), wherein a workbench (3) is arranged in the furnace body (1), characterized in that: A heat insulation board (4) matched with the furnace door (2) is fixedly installed in the furnace body (1), two groups of racks (5) are symmetrically installed at the bottom of the workbench (3), a movable rod (6) is rotatably installed in the furnace body (1), two groups of gears (7) respectively matched with the racks (5) are fixedly installed on the movable rod (6), two groups of through holes (8) are symmetrically opened on the heat insulation board (4), two groups of rope pulleys (9) are fixedly installed on the movable rod (6), and a driving mechanism connected with the rope pulley (9) is provided on the furnace door (2).

2. A quenching furnace for heat treatment according to claim 1, characterized in that: The driving mechanism comprises two groups of connecting ropes (10) fixedly mounted on the bottom of the furnace door (2); the connecting ropes (10) pass through the through holes (8) and are wound around the rope wheels (9).

3. A quenching furnace for heat treatment according to claim 2, characterized in that: Two groups of support plates (11) cooperating with the heat insulation plate (4) are fixedly installed in the furnace body (1), and convex grooves are provided on the support plates (11). Convex strips (12) cooperating with the convex grooves are fixedly installed on the workbench (3), and a plurality of heating tubes (13) are fixedly installed on the support plates (11).

4. A quenching furnace for heat treatment according to claim 3, characterized in that: A buffer cavity (14) is provided on the heat insulation board (4), and support grooves (15) communicating with the buffer cavity (14) are provided on both sides of the heat insulation board (4).

5. A quenching furnace for heat treatment according to claim 4, characterized in that: A stopper (16) cooperating with the rack (5) is arranged in the buffer cavity (14), and support bars (17) cooperating with the support groove (15) are fixedly mounted on both sides of the stopper (16).

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