Opening device for door of heat treatment kiln

Abstract

The utility model discloses a heat treatment kiln door opening device which comprises a heat treatment kiln, a through opening is formed in the side wall of the heat treatment kiln, a protective cylinder is fixedly assembled on the side wall of the heat treatment kiln, a furnace door is inserted into the inner wall of the protective cylinder, and a furnace door opening structure is fixedly connected with the furnace door. Metal workpieces are subjected to heat treatment through the heat treatment kiln, the stability of the heat treatment kiln is guaranteed through the supporting legs, the furnace door opening structure is arranged, after the furnace door is adjusted to be opened, the side, facing the interior of the heat treatment kiln, of the furnace door is downwards buckled into the cooling pond, the furnace door is cooled through cooling water in the cooling pond, and the convenience of opening of the furnace door is guaranteed; meanwhile, the use safety of the equipment is guaranteed, risks such as scalding caused by manually opening the furnace door are effectively avoided, the heat treatment kiln is sealed through the furnace door, the working effect of the heat treatment kiln is guaranteed, meanwhile, the protection cylinder can support the furnace door to a certain degree, and the working stability and the sealing effect of the furnace door are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of opening a heat treatment kiln door, in particular to a heat treatment kiln door opening device. Background Art

[0002] Heat treatment kiln is a kind of equipment used for heat treatment of metal workpieces. It changes the physical and chemical properties of materials, such as hardness, toughness, corrosion resistance, etc., by controlling temperature and time. Heat treatment kilns usually include heating zone, insulation zone and cooling zone, as well as corresponding control systems. The heat treatment kiln door opening device is a key component to ensure that the kiln door can be opened and closed safely and reliably. Most of the existing equipment requires manual opening, and the door remains at a high temperature after opening, which is unsafe. Utility Model Content

[0003] The purpose of the utility model is to provide a heat treatment kiln door opening device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat treatment kiln door opening device, comprising a heat treatment kiln, the side wall of the heat treatment kiln is provided with a through opening, and the side wall of the heat treatment kiln is fixedly equipped with a casing, the inner wall of the casing is plugged with a furnace door, the furnace door covers the through opening of the heat treatment kiln, the lower end of the heat treatment kiln is evenly provided with three supporting legs, the side end of the heat treatment kiln is provided with a cooling pool, the cooling pool is placed on the ground, the side wall of the cooling pool is fixedly equipped with a furnace door opening structure, and the furnace door opening structure is fixedly connected to the furnace door.

[0005] Preferably, the furnace door opening structure includes a support plate, which is fixedly mounted on the side wall of the cooling pool, a top plate is fixedly mounted on the upper end of the support plate, vertical plates are fixedly mounted on both sides of the lower end of the top plate, hydraulic cylinders are rotatably mounted on the inner ends of the two vertical plates, a motor is fixedly mounted on the outer side wall of one of the vertical plates, and a motor shaft of the motor passes through the vertical plate and is connected to the hydraulic cylinder.

[0006] Preferably, a water inlet pipe is fixedly connected to the side wall of the cooling pool, and the water inlet pipe passes through the furnace door opening structure. A one-way valve is provided on the inner wall of the water inlet pipe, and the flow direction of the one-way valve is from the outside to the inside of the cooling pool.

[0007] Preferably, it further comprises a moving structure, wherein the moving structure is arranged at the lower end of the inner wall of the cooling pool;

[0008] The movable structure includes a base plate, which is fixedly mounted on the ground. Two tracks are symmetrically arranged on the surface of the base plate. Pulleys are rotatably mounted on both sides of the inner wall of the cooling pool. The pulleys are slidably mounted on the tracks. A metal block is embedded in the middle of the inner wall of the cooling pool. An electromagnet is fixedly mounted on the surface of the base plate. The electromagnet is adsorbed to the metal block and is arranged on the vertical center line of the side wall opening of the heat treatment kiln.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: heat treatment is performed on metal workpieces through a heat treatment kiln, the stability of the heat treatment kiln is ensured by supporting legs, and the furnace door opening structure is set to adjust the furnace door so that after opening, the furnace door is buckled downward into the cooling pool on the side facing the heat treatment kiln, and the furnace door is cooled by cooling water in the cooling pool, thereby ensuring the convenience of opening the furnace door and the safety of the equipment, effectively avoiding the occurrence of dangers such as burns caused by manually opening the furnace door, sealing the heat treatment kiln through the furnace door, ensuring the working effect of the heat treatment kiln, and at the same time the casing can provide certain support to the furnace door to ensure the working stability and sealing effect of the furnace door. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a planar cross-sectional view of the utility model;

[0012] Figure 3 This is a schematic diagram of the furnace door opening state;

[0013] Figure 4 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0014] In the figure: 1-heat treatment kiln, 2-support leg, 3-casing, 4-furnace door opening structure, 41-support plate, 42-top plate, 43-vertical plate, 44-motor, 45-hydraulic cylinder, 5-furnace door, 6-cooling pool, 7-water inlet pipe, 8-moving structure, 81-bottom plate, 82-track, 83-pulley, 84-electromagnet, 85-metal block. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0016] See also Figure 1-4The utility model provides a heat treatment kiln door opening device, including a heat treatment kiln 1, a side wall of the heat treatment kiln 1 is provided with a through opening, and the side wall of the heat treatment kiln 1 is fixedly equipped with a casing 3, the inner wall of the casing 3 is plugged with a furnace door 5, the furnace door 5 covers the through opening of the heat treatment kiln 1, three supporting legs 2 are evenly arranged at the lower end of the heat treatment kiln 1, a cooling pool 6 is arranged at the side end of the heat treatment kiln 1, the cooling pool 6 is placed on the ground, the side wall of the cooling pool 6 is fixedly equipped with a furnace door opening structure 4, and the furnace door opening structure 4 is fixedly connected to the furnace door 5.

[0017] The metal workpiece is heat treated by the heat treatment kiln 1, and the stability of the heat treatment kiln 1 is ensured by the support legs 2. The furnace door opening structure 4 is set to adjust the furnace door 5 so that after it is opened, the furnace door 5 is buckled downward into the cooling pool 6 on the side facing the heat treatment kiln, and the furnace door 5 is cooled by the cooling water in the cooling pool 6 to ensure the convenience of opening the furnace door 5 and the safety of the use of the equipment, effectively avoiding the danger of burns caused by manually opening the furnace door 5, and sealing the heat treatment kiln 1 by the furnace door 5 to ensure the working effect of the heat treatment kiln 1. At the same time, the casing 3 can provide certain support to the furnace door 5 to ensure the working stability and sealing effect of the furnace door 5.

[0018] The furnace door opening structure 4 includes a support plate 41, which is fixedly mounted on the side wall of the cooling pool 6. A top plate 42 is fixedly mounted on the upper end of the support plate 41, and vertical plates 43 are fixedly mounted on both sides of the lower end of the top plate 42. The inner ends of the two vertical plates 43 are rotatably mounted with hydraulic cylinders 45. The outer wall of one of the vertical plates 43 is fixedly mounted with a motor 44, and the motor shaft of the motor 44 passes through the vertical plate 43 and is connected to the hydraulic cylinder 45.

[0019] When the furnace door 5 needs to be opened, the hydraulic cylinder 45 is first opened, the piston rod is adjusted to retract into the cylinder of the hydraulic cylinder 45, and the furnace door 5 is driven to separate from the side wall opening of the heat treatment kiln 1 and the inner wall of the casing 3. After the furnace door 5 is completely separated from the inner wall of the casing 3, the motor 44 is turned on. The motor 44 uses a servo motor. At this time, the hydraulic cylinder 45 is driven to rotate by the motor and adjusted to the position as shown in the figure. Figure 3 In the configuration shown, the inner side of the furnace door 5 is immersed in the coolant in the cooling pool 6 for cooling. The support plate 41 , the top plate 42 and the vertical plate 43 can ensure the stability of the hydraulic cylinder 45 and the motor 44 .

[0020] The side wall of the cooling pool 6 is fixedly connected with a water inlet pipe 7, which passes through the furnace door opening structure 4. A one-way valve is arranged on the inner wall of the water inlet pipe 7, and the flow direction of the one-way valve is from the outside to the inside of the cooling pool 6.

[0021] The water inlet pipe 7 is connected to the water pump to facilitate the coolant to enter the cooling pool 6, and the one-way valve can effectively prevent the coolant from flowing out.

[0022] It also includes a moving structure 8, which is arranged at the lower end of the inner wall of the cooling pool 6;

[0023] The mobile structure 8 includes a base plate 81, which is fixedly mounted on the ground. Two tracks 82 are symmetrically arranged on the surface of the base plate 81. Pulleys 83 are rotatably mounted on both sides of the inner wall of the cooling pool 6. The pulleys 83 are slidably mounted on the tracks 82. A metal block 85 is embedded in the middle of the inner wall of the cooling pool 6. An electromagnet 84 is fixedly mounted on the surface of the base plate 81. The electromagnet 84 is adsorbed to the metal block 85, and the electromagnet 84 is arranged on the vertical center line of the side wall opening of the heat treatment kiln.

[0024] When the furnace door 5 is opened, in order to more conveniently take out the processed workpiece, the cooling pool can be moved to one side of the heat treatment kiln 1. At this time, the electromagnet 84 needs to be closed and the metal block 85 is not adsorbed. At this time, the pulley 83 moves on the slide rail 82. After the workpiece is taken out, the cooling pool 6 can be moved back to its original position. At this time, the electromagnet 84 is turned on. When the metal block 85 overlaps with the electromagnet 84, they attract each other to complete the position correction.

[0025] 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 heat treatment kiln door opening device, characterized in that: The invention comprises a heat treatment kiln (1), wherein the side wall of the heat treatment kiln (1) is provided with a through opening, and the side wall of the heat treatment kiln (1) is fixedly equipped with a casing (3), the inner wall of the casing (3) is plugged with a furnace door (5), and the furnace door (5) covers the through opening of the heat treatment kiln (1), and the lower end of the heat treatment kiln (1) is evenly provided with three supporting legs (2), and the side end of the heat treatment kiln (1) is provided with a cooling pool (6), and the cooling pool (6) is placed on the ground, and the side wall of the cooling pool (6) is fixedly equipped with a furnace door opening structure (4), and the furnace door opening structure (4) is fixedly connected to the furnace door (5).

2. The heat treatment furnace door opening device according to claim 1, characterized in that: The furnace door opening structure (4) comprises a support plate (41), wherein the support plate (41) is fixedly mounted on the side wall of the cooling pool (6), a top plate (42) is fixedly mounted on the upper end of the support plate (41), vertical plates (43) are fixedly mounted on both sides of the lower end of the top plate (42), hydraulic cylinders (45) are rotatably mounted on the inner ends of the two vertical plates (43), and a motor (44) is fixedly mounted on the outer side wall of one of the vertical plates (43), and a motor shaft of the motor (44) passes through the vertical plate (43) and is connected to the hydraulic cylinder (45).

3. The heat treatment furnace door opening device according to claim 1, characterized in that: The side wall of the cooling pool (6) is fixedly connected to a water inlet pipe (7), the water inlet pipe (7) passes through the furnace door opening structure (4), and the inner wall of the water inlet pipe (7) is provided with a one-way valve, and the flow direction of the one-way valve is from the outside to the inside of the cooling pool (6).

4. The heat treatment furnace door opening device according to claim 1, characterized in that: It also includes a movable structure (8), wherein the movable structure (8) is arranged at the lower end of the inner wall of the cooling pool (6); The movable structure (8) comprises a bottom plate (81), the bottom plate (81) is fixedly mounted on the ground, two tracks (82) are symmetrically arranged on the surface of the bottom plate (81), pulleys (83) are rotatably mounted on both sides of the inner wall of the cooling pool (6), the pulleys (83) are slidably mounted on the tracks (82), a metal block (85) is embedded in the middle of the inner wall of the cooling pool (6), an electromagnet (84) is fixedly mounted on the surface of the bottom plate (81), the electromagnet (84) is attracted to the metal block (85), and the electromagnet (84) is arranged on the vertical center line of the side wall opening of the heat treatment kiln.

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