Heat treatment furnace with large and small circulation systems

Abstract

The utility model relates to the technical field of heat treatment furnaces, in particular to a heat treatment furnace of a large and small circulating system, which comprises a furnace body, partition plates are uniformly and fixedly connected in the furnace body, backflow plates are uniformly and fixedly connected on the inner wall of the top end of the furnace body, and a circulating fan is arranged at the top of the furnace body. And a burner is arranged in each heat dissipation cylinder, the heat dissipation cylinders are located at the bottom ends of the circulating fans, an aging furnace is arranged on one side of the furnace body, one end of the aging furnace is connected with a heat pipeline, and a power conveying mechanism is arranged at the bottom of the furnace body and used for conveying work. According to the device, tension can be prevented from being accumulated in the transmission process of the toothed belt, breakage of the toothed belt caused by tension accumulation is avoided, then heat loss in the heat treatment process is reduced, heat loss can be avoided, it can be guaranteed that a workpiece is evenly heated, and then the heat treatment effect of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment furnace technology, specifically a heat treatment furnace with a large and small circulation system. Background Technology

[0002] A heat treatment furnace is a device used to heat treat metallic materials. Its basic principle is to change the microstructure and properties of the metallic material by heating it to a specific temperature range and then cooling it at an appropriate rate. Heating steel to above the critical temperature causes the internal structure of the steel to become austenitic. Then, through different cooling methods (such as quenching and tempering), different microstructures, such as martensite and pearlite, can be obtained, thereby changing the hardness, toughness, strength and other properties of the steel.

[0003] Currently, some existing heat treatment furnaces do not distribute heat evenly during use and cannot recycle heat, resulting in significant heat loss and being environmentally unfriendly. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the aforementioned background technology by proposing a heat treatment furnace with a large and small circulation system.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat treatment furnace with a large and small circulation system, comprising a furnace body, wherein partition plates are uniformly fixedly connected inside the furnace body, and reflux plates are uniformly fixedly connected to the inner wall of the top of the furnace body, with the reflux plates distributed between the partition plates. A circulating fan is provided at the top of the furnace body, and the bottom ends of the circulating fan are respectively located at the top of the partition plates. Four sets of heat dissipation cylinders are provided inside the furnace body, and each heat dissipation cylinder is provided with a burner inside. Each heat dissipation cylinder is located at the bottom of the circulating fan. An aging furnace is provided on one side of the furnace body, one end of which is connected to a heat pipe, and one end of the heat pipe extends to one end of the furnace body. A heat fan is provided at one end of the furnace body, and the output end of the heat fan is connected to one end of the heat pipe. Material frames are uniformly arranged inside the furnace body. Closing mechanisms are provided on both sides of the furnace body and the aging furnace for sealing the furnace body. A power conveying mechanism is provided at the bottom of the furnace body for conveying operations.

[0006] Preferably, the spacing between the circulating fan, the heat dissipation cylinder, and the burner is different, and the surface of the heat dissipation cylinder is uniformly provided with staggered heat dissipation holes, which facilitates the formation of a heating body that dissipates heat quickly without an open flame.

[0007] Preferably, the control terminals of the circulating fan and the heating fan are both electrically connected to an external power source via an external switch, which facilitates user control of the device.

[0008] Preferably, the closing mechanism includes a closing plate, a sealing door, a hydraulic cylinder, a first connecting member, a second connecting member, and a connecting rod. Closing plates are fixedly connected to the top of both sides of the furnace body and the aging furnace. A sealing door is provided at the bottom of each closing plate, and the top of each sealing door is connected to the furnace body and the aging furnace via a rotating shaft. One side of each sealing door is respectively attached to the furnace body and the aging furnace. A hydraulic cylinder is connected to the middle of each closing plate via a rotating shaft. A first connecting member is connected to the bottom of each sealing door via a rotating shaft. A second connecting member is connected to the top of each sealing door via a rotating shaft, and one end of each second connecting member is connected to the output end of the hydraulic cylinder via a rotating shaft. A connecting rod is connected to one end of each first connecting member via a rotating shaft, and one end of each connecting rod is connected to the second connecting member via a rotating shaft. The connection points of the hydraulic cylinder and the second connecting member are located outside the connection point between the second connecting member and the connecting rod, facilitating user control of the opening and closing of the sealing door and improving sealing performance.

[0009] Preferably, the output ends of the hydraulic cylinders are all electrically connected to an external power source via an external switch, making it convenient for users to control the operation of this device.

[0010] Preferably, the power transmission mechanism includes a power roller, a first gear, a second gear, a toothed belt, and a power motor. The bottom of the furnace body is evenly connected to an aging furnace via bearings, with one end of the aging furnace located on the outside of the furnace body. One end of each aging furnace is fixedly connected to a first gear, and one end of each power roller is fixedly connected to a second gear, with the second gear located on the outside of the first gear. A power motor is provided at one end of the furnace body, and the output end of the power motor is fixedly connected to a set of power rollers. Toothed belts are evenly arranged on one side of the furnace body to facilitate providing power to the device.

[0011] Preferably, the toothed belt is used to connect two adjacent sets of first gears or second gears, which can prevent the toothed belt from accumulating tension during transmission, thereby protecting the toothed belt and preventing it from breaking due to tension accumulation.

[0012] Preferably, the output terminals of the power motors are all electrically connected to an external power source via an external switch, making it convenient for users to control the operation of this device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Equipped with a power roller, first gear, second gear, toothed belt, and power motor, the material frame and workpiece can be moved, facilitating loading and unloading for users. The toothed belt connects adjacent sets of first or second gears, allowing the power roller to rotate simultaneously in the same direction. Multiple power motors provide power output, and multiple toothed belts connect adjacent sets of first or second gears, preventing tension buildup on the toothed belts during transmission and protecting them from breakage. The frequency of the entire power roller's rotation can also be controlled by multiple power motors. A closing plate, hydraulic cylinder, first connector, second connector, and connecting rod control the opening and closing of the sealing door. The hydraulic cylinder, first connector, and connecting rod also improve the sealing between the sealing door and the furnace body and aging furnace after closing, thereby reducing heat loss during the heat treatment process. The internal space of the furnace is separated by a partition plate to form a combustion chamber and a working chamber. The combustion chamber is located at the top of the partition plate, and the working chamber is located between the furnace body and the power roller. The material frame and workpiece are located in the working chamber. When the workpiece is in the working chamber inside the furnace, flames are emitted through the burner to generate heat. Because the surface of the heat dissipation cylinder is provided with several staggered heat dissipation holes, a heat-generating body with fast heat dissipation without open flame is formed. At this time, the heat generated by the heat dissipation cylinder and the burner is fully mixed and stirred and circulated inside the furnace body by the circulating fan, thereby avoiding heat loss. At the same time, the circulating fan can evenly distribute the heat generated by the heat dissipation cylinder and the burner inside the furnace body, thereby ensuring that the workpiece is heated evenly and improving the heat treatment effect of the device. Excess heat can be transported to the interior of the aging furnace through heat pipes and heat fans, thereby improving energy utilization and achieving the purpose of energy saving and environmental protection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the material frame and the power roller of this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the furnace body in this utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the power transmission mechanism in this utility model;

[0020] Figure 6 This is a three-dimensional schematic diagram of the closing mechanism in this utility model.

[0021] In the diagram: 1. Furnace body; 2. Partition plate; 3. Return plate; 4. Circulating fan; 5. Heat sink; 6. Burner; 7. Aging furnace; 8. Heat pipe; 9. Heat blower; 10. Material frame; 11. Closing plate; 12. Sealing door; 13. Hydraulic cylinder; 14. First connecting piece; 15. Second connecting piece; 16. Connecting rod; 17. Power roller; 18. First gear; 19. Second gear; 20. Toothed belt; 21. Power motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 One embodiment provided by this utility model:

[0024] A heat treatment furnace with a large and small circulation system includes a furnace body 1. Partition plates 2 are uniformly fixedly connected inside the furnace body 1. Return plates 3 are uniformly fixedly connected to the inner wall of the top of the furnace body 1, and the return plates 3 are distributed between the partition plates 2. A circulating fan 4 is installed at the top of the furnace body 1, and the bottom ends of the circulating fans 4 are all located at the top of the partition plates 2. Four sets of heat dissipation cylinders 5 are installed inside the furnace body 1, and each heat dissipation cylinder 5 has a burner 6 installed inside. Each heat dissipation cylinder 5 is located at the bottom of the circulating fan 4. An aging furnace 7 is installed on one side of the furnace body 1. One end of the aging furnace 7 is connected to a heat pipe 8, and one end of the heat pipe 8 extends to one end of the furnace body 1. A heat fan 9 is installed at one end of the furnace body 1, and the output end of the heat fan 9 is connected to one end of the heat pipe 8. Material frames 10 are uniformly arranged inside the furnace body 1. Closing mechanisms are installed on both sides of the furnace body 1 and the aging furnace 7 to seal the furnace body 1. A power conveying mechanism is installed at the bottom of the furnace body 1 for conveying operations.

[0025] Furthermore, the closing mechanism includes a closing plate 11, a sealing door 12, a hydraulic cylinder 13, a first connecting member 14, a second connecting member 15, and a connecting rod 16. Closing plates 11 are fixedly connected to the top ends of both sides of the furnace body 1 and the aging furnace 7. Sealing doors 12 are provided at the bottom ends of the closing plates 11, and the top ends of the sealing doors 12 are connected to the furnace body 1 and the aging furnace 7 via rotating shafts. One side of each sealing door 12 is respectively fitted against the furnace body 1 and the aging furnace 7. A hydraulic cylinder 13 is connected to the middle of the closing plate 11 via a rotating shaft. The bottom ends of the sealing doors 12 are connected to the first connecting member 14 via rotating shafts. The top ends of the sealing doors 12 are connected to the second connecting member 15 via rotating shafts, and one end of each second connecting member 15 is connected to the output end of the hydraulic cylinder 13 via a rotating shaft. One end of each first connecting member 14 is connected to the connecting rod 16 via a rotating shaft, and one end of each connecting rod 16 is connected to the second connecting member 16 via a rotating shaft. The hydraulic cylinder 13 and the second connecting member 15 are connected. The connection points of the hydraulic cylinder 13 and the second connecting member 15 are both located outside the connection point of the second connecting member 15 and the connecting rod 16. When the output end of the hydraulic cylinder 13 shortens, it pulls one end of the second connecting member 15 upward. Through the second connecting member 15, it pulls one end of the connecting rod 16 and the first connecting member 14 upward. At this time, it pulls the bottom end of the sealing door 12 to rotate upward. At this time, the sealing door 12 opens. Conversely, the sealing door 12 closes. After the sealing door 12 is closed, the output end of the hydraulic cylinder 13 continues to extend. At this time, through the second connecting member 15, the connecting rod 16 and the first connecting member 14, the sealing door 12 can be tightly fitted to one end of the furnace body 1. This can improve the sealing performance of the sealing door 12 with the furnace body 1 and the aging furnace 7 after it is closed, thereby reducing the heat loss in the heat treatment process, making it convenient for users to control the opening and closing of the sealing door 12, and also improving the sealing performance.

[0026] Furthermore, the power conveying mechanism includes a power roller 17, a first gear 18, a second gear 19, a toothed belt 20, and a power motor 21. An aging furnace 7 is evenly connected to the bottom of the furnace body 1 via bearings, with one end of the aging furnace 7 located outside the furnace body 1. The first gear 18 is fixedly connected to one end of each aging furnace 7. The second gear 19 is fixedly connected to one end of each power roller 17, and is located outside the first gear 18. A power motor 21 is installed at one end of the furnace body 1, and its output end is fixedly connected to a set of power rollers 17. A toothed belt 20 is evenly distributed on one side of the furnace body 1. The output end of the power motor 21 drives one set of power rollers 17 to rotate. The power rollers 17 drive another set of power rollers 17 to rotate via the first gear 18 and the toothed belt 20. Simultaneously, the first gear 18, the material frame 10, and the second gear 19 drive another set of power rollers 17 to rotate. Similarly, this drives all the power rollers 17 to rotate. The simultaneous rotation of the power rollers 17 in the same direction drives the material frame 10 and the workpiece to rotate, which facilitates the user's loading and unloading work. At the same time, the toothed belt 20 connects two adjacent sets of first gears 18 or second gears 19, which can control the power rollers 17 to rotate in the same direction. The power output is provided by multiple sets of power motors 21 and the transmission is connected to the adjacent sets of first gears 18 or second gears 19 by multiple sets of toothed belts 20. This can prevent the toothed belts 20 from accumulating tension during transmission, thus protecting the toothed belts 20 and preventing them from breaking due to tension accumulation. At the same time, the frequency of the rotation of the entire power roller 17 can be controlled by multiple sets of power motors 21, which is convenient for providing power to this device.

[0027] It should be noted that the spacing between the circulating fan 4, the heat sink 5, and the burner 6 is different. The surface of the heat sink 5 is evenly provided with staggered heat dissipation holes, which facilitates the formation of a heat-generating body with fast heat dissipation without open flame. The control terminals of the circulating fan 4 and the heat blower 9 are electrically connected to an external power source through an external switch, which is convenient for the user to control the operation of this device. The output terminals of the hydraulic cylinders 13 are also electrically connected to an external power source through an external switch, which is convenient for the user to control the operation of this device. The toothed belt 20 is used to connect two adjacent sets of first gears 18 or second gears 19, which can prevent the toothed belt 20 from accumulating tension during transmission, thereby protecting the toothed belt 20 from breakage due to tension accumulation. The output terminals of the power motor 21 are also electrically connected to an external power source through an external switch, which is convenient for the user to control the operation of this device.

[0028] The user places the workpiece inside the material frame 10, and then places the material frame 10 on top of the power roller 17. At this time, the output of the power motor 21 drives one set of power rollers 17 to rotate. The power rollers 17 drive another set of power rollers 17 to rotate through the first gear 18 and the toothed belt 20. At the same time, through the first gear 18, the material frame 10, and the second gear 19, another set of power rollers 17 is driven to rotate, and so on, thereby driving all the power rollers 17 to rotate. The simultaneous rotation of the power rollers 17 in the same direction drives the material frame 10 and the workpiece to rotate, which facilitates the user's loading and unloading work. At the same time, the toothed belt 20 connects two adjacent sets of first gears 18 or second gears 19, which can control the power rollers 17 to rotate simultaneously. Rotating in the same direction, the power output is provided by multiple sets of power motors 21, and multiple sets of toothed belts 20 connect adjacent sets of first gears 18 or second gears 19. This avoids the accumulation of tension on the toothed belts 20 during transmission, thus protecting them from breakage due to tension buildup. Simultaneously, the frequency of rotation of the entire power roller 17 can be controlled by the multiple sets of power motors 21. When the output end of the hydraulic cylinder 13 shortens, it pulls one end of the second connecting member 15 upwards. The second connecting member 15 then pulls one end of the connecting rod 16 and one end of the first connecting member 14 upwards, causing the bottom end of the sealing door 12 to rotate upwards, thus opening the sealing door 12. Conversely, the sealing door 12 closes when the sealing door 12 is closed. After the sealing door 12 is closed, the output end of the hydraulic cylinder 13 continues to extend. At this time, the sealing door 12 can be tightly fitted to one end of the furnace body 1 through the second connecting piece 15, the connecting rod 16 and the first connecting piece 14, thereby improving the sealing performance of the sealing door 12 with the furnace body 1 and the aging furnace 7 after it is closed, and thus reducing the heat loss during the heat treatment process. The partition plate 2 can separate the internal space of the furnace body 1 to form a combustion chamber and a working chamber. The combustion chamber is located at the top of the partition plate 2, and the working chamber is located between the furnace body 1 and the power roller 17. The material frame 10 and the workpiece are located in the working chamber. When the workpiece is in the working chamber inside the furnace body 1, flame is sprayed out through the burner 6. The flame generates heat. Since the surface of the heat dissipation cylinder 5 is provided with several staggered heat dissipation holes, it can form a heating body with fast heat dissipation without open flame. At this time, the heat generated by the heat dissipation cylinder 5 and the burner 6 can be fully mixed and stirred by the circulating fan 4 and then circulated inside the furnace body 1, thereby avoiding heat loss. At the same time, the circulating fan 4 can evenly distribute the heat generated by the heat dissipation cylinder 5 and the burner 6 inside the furnace body 1, thereby ensuring that the workpiece is heated evenly and thus improving the heat treatment effect of the device. The excess heat can be transported to the interior of the aging furnace 7 through the heat pipe 8 and the heat fan 9, thereby improving the energy utilization rate and achieving the purpose of energy saving and environmental protection.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat treatment furnace of a size-cycling system, characterized by, The utility model provides a kind of time effect furnace, including furnace body (1), the inside of furnace body (1) is uniformly fixedly connected with partition plate (2), the inner wall of the top of furnace body (1) is uniformly fixedly connected with backflow plate (3), and backflow plate (3) is distributed between partition plate (2), the top of furnace body (1) is provided with circulating fan (4), and the bottom end of circulating fan (4) is respectively located the top of partition plate (2), the inside of furnace body (1) is provided with four groups of heat dissipation cylinder (5), the inside of heat dissipation cylinder (5) is provided with combustion nozzle (6), the bottom end of heat dissipation cylinder (5) is respectively located circulating fan (4), one side of furnace body (1) is provided with time effect furnace (7), one end of time effect furnace (7) is connected with heat pipeline (8), and one end of heat pipeline (8) extends to one end of furnace body (1), one end of furnace body (1) is provided with heat fan (9), and the output end of heat fan (9) is connected with one end of heat pipeline (8), the inside of furnace body (1) is uniformly provided with material frame (10), the both sides of furnace body (1) and time effect furnace (7) are provided with closure mechanism, for sealing work of furnace body (1), the bottom of furnace body (1) is provided with power delivery mechanism, for conveying work.

2. The heat treatment furnace of a size-circulation system according to claim 1, characterized by: The spacing of the circulating fan (4), heat dissipation cylinder (5) and combustion nozzle (6) is different.

3. The heat treatment furnace of a size-circulation system according to claim 1, characterized in that: The control end of the circulating fan (4) and the heat fan (9) is electrically connected with the external power source through an external switch.

4. The heat treatment furnace of a size-circulation system according to claim 1, characterized in that: The closure mechanism includes a closure plate (11), a sealing door (12), a hydraulic oil cylinder (13), a first connecting piece (14), a second connecting piece (15) and a connecting rod (16), the top of the both sides of the furnace body (1) and the time effect furnace (7) is fixedly connected with the closure plate (11), the bottom end of the closure plate (11) is provided with the sealing door (12), and the top end of the sealing door (12) is connected with the furnace body (1) and the time effect furnace (7) through a rotating shaft, one side of the sealing door (12) is respectively fitted with the furnace body (1) and the time effect furnace (7), the middle part of the closure plate (11) is connected with the hydraulic oil cylinder (13) through a rotating shaft, the bottom end of the sealing door (12) is connected with the first connecting piece (14) through a rotating shaft, the top end of the sealing door (12) is connected with the second connecting piece (15) through a rotating shaft, and one end of the second connecting piece (15) is connected with the output end of the hydraulic oil cylinder (13) through a rotating shaft, one end of the first connecting piece (14) is connected with the connecting rod (16) through a rotating shaft, and one end of the connecting rod (16) is connected with the second connecting piece (15) through a rotating shaft, the connection between the hydraulic oil cylinder (13) and the second connecting piece (15) is located outside the connection between the second connecting piece (15) and the connecting rod (16).

5. A heat treatment furnace for a size-cycling system according to claim 4, characterized in that: The output end of the hydraulic oil cylinder (13) is electrically connected with the external power source through an external switch.

6. The heat treatment furnace of a size-circulation system according to claim 1, characterized by: Said power transmission mechanism includes power roller (17), first gear (18), second gear (19), toothed belt (20) and power motor (21), the bottom of the furnace body (1) is uniformly connected with aging furnace (7) through bearing, and one end of the aging furnace (7) is located outside the furnace body (1), one end of the aging furnace (7) is fixedly connected with the first gear (18), one end of the power roller (17) is fixedly connected with the second gear (19), and the second gear (19) is located outside the first gear (18), one end of the furnace body (1) is provided with power motor (21), and the output end of the power motor (21) is fixedly connected with a group of power roller (17), one side of the furnace body (1) is uniformly provided with toothed belt (20).

7. A heat treatment furnace for a size-cycling system according to claim 6, characterized in that: Said toothed belt (20) is used for connecting adjacent two groups of first gear (18) or second gear (19).

8. The heat treatment furnace of a size-circulation system according to claim 6, characterized by: The output end of the power motor (21) is electrically connected with external power supply through external switch.

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