Overheating protection device of medium-frequency electric furnace for machine tool casting

Abstract

The utility model relates to the technical field of overheating protection, and provides a medium-frequency electric furnace overheating protection device for machine tool castings, which comprises a side box, an air inlet, an air inlet screen plate, an air inlet pipe, a protection assembly, a connecting cylinder and a heat dissipation assembly, the side box is mounted on one side of a medium-frequency electric furnace body, and the air inlet is formed in one side of the side box; according to the medium-frequency electric furnace for the machine tool casting, external air can conveniently enter the side box, the air inlet net plate is detachably connected to the air inlet, impurities in the external air can be filtered out, so that the influence of the impurities on heat dissipation of internal components of the medium-frequency electric furnace for the machine tool casting is reduced, and the multiple air inlet pipes are arranged and communicate with the two sides of the side box in an array mode correspondingly; the protection assembly is arranged among the multiple air inlet pipes, the connecting cylinder is detachably connected to the other side of the medium-frequency electric furnace body, and the heat dissipation assembly is arranged on the connecting cylinder. By means of the technical scheme, the problems that in the prior art, during heat dissipation, the air blowing range to the interior of the furnace body is concentrated, and the air volume is large are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to overheat protection technical field, concretely relates to a machine tool casting is with intermediate frequency electric furnace overheat protection device. BACKGROUND

[0002] Machine tool casting refers to the part or component for machine tool manufactured through casting process, intermediate frequency electric furnace is a kind of power supply device that 50Hz alternating current is converted into intermediate frequency (300Hz above to 10000Hz), it is widely applied in machine tool casting production, intermediate frequency electric furnace generates certain heat when working, to reduce the influence of heat on normal work of intermediate frequency electric furnace, cooling water is currently used to carry out cooling protection to intermediate frequency electric furnace, but cooling water cooling can cause waste of water resources;

[0003] In order to solve the above problems, the utility model with patent announcement No. CN213335505U discloses a kind of intermediate frequency electric furnace with overheat protection structure, it is by being arranged at the bottom of furnace body driving motor, driving motor rotates fan blade, blows the airflow in the interior of furnace body, and external airflow is brought into furnace body, the air extractor of furnace body top end extracts the flowing airflow from furnace body, so that the heat flow generated by furnace body work is circulated and replaced, to reach certain heat dissipation effect, prevent intermediate frequency electric furnace temperature too high, it is although convenient to carry out certain overheat protection to intermediate frequency electric furnace, but fan blade is concentrated to the blowing range in the interior of furnace body and the air volume is relatively large, in long-term blowing, fine parts in the interior of intermediate frequency electric furnace can appear the situation of shaking setting and falling, to the normal work of intermediate frequency electric furnace It will cause influence. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of intermediate frequency electric furnace overheat protection device for machine tool casting, solve the problem that the blowing range in the interior of furnace body is concentrated and the air volume is relatively large in the heat dissipation of relevant technology.

[0005] The technical scheme of the utility model is as follows: a kind of intermediate frequency electric furnace overheat protection device for machine tool casting, including side edge box, air inlet, air inlet screen, air inlet pipe, protection assembly, connecting barrel and heat dissipation component;

[0006] The side edge box is installed at one side of intermediate frequency electric furnace body;

[0007] The air inlet is opened at one side of the side edge box;

[0008] The air inlet screen is detachably connected at the air inlet;

[0009] The air inlet pipe is provided as multiple, multiple air inlet pipes are respectively arrayed and communicated at the two sides of the side edge box;

[0010] The protection assembly is arranged between multiple air inlet pipes;

[0011] The connecting cylinder is detachably connected to the other side of the medium-frequency electric furnace body.

[0012] The heat dissipation assembly is arranged on the connecting cylinder.

[0013] Further, the protection assembly comprises:

[0014] The first fan is installed in the side box.

[0015] The mounting seat is fixedly connected between the first fan and the inner side wall of the side box.

[0016] The support pipe is communicated with the output end of the first fan.

[0017] The connecting pipes are arranged in two, and the two connecting pipes are respectively communicated between the support pipe and the plurality of air inlet pipes.

[0018] The temperature sensor is installed on the side box.

[0019] Further, the heat dissipation assembly comprises:

[0020] The second fan is installed on the outer side wall of the connecting cylinder, and the output end of the second fan is connected with the connecting cylinder.

[0021] The plurality of heat dissipation openings are arranged on the connecting cylinder.

[0022] The ventilation mesh plate is fixedly connected to the inner side wall of the connecting cylinder.

[0023] Further, a plurality of connecting blocks are fixedly connected to the connecting cylinder, and the connecting blocks are threadedly connected with connecting screws between the outer side walls of the medium-frequency electric furnace body.

[0024] Further, the side box is provided with a through hole for moving the air inlet mesh plate, and the air inlet mesh plate is symmetrically connected with two limiting strips, and the side box is provided with two limiting openings matched with the limiting strips.

[0025] Further, the top end of the air inlet mesh plate is fixedly connected with a placing plate, and the top end of the placing plate is fixedly connected with a pull ring.

[0026] The working principle and beneficial effects of the utility model are as follows:

[0027] 1. In this utility model, the combination of the side box, air inlet, connecting cylinder and multiple heat dissipation vents facilitates the flow of air in the medium frequency electric furnace for machine tool casting, so as to facilitate the circulation and replacement of hot air in the medium frequency electric furnace for machine tool casting, thereby facilitating heat dissipation of the medium frequency electric furnace for machine tool casting and providing overheat protection for the medium frequency electric furnace for machine tool casting.

[0028] 2. In this utility model, the air inlet mesh plate facilitates the filtration of impurities in the outside air, thereby ensuring the cleanliness of the outside air and reducing the impact of external impurities on the interior of the medium frequency electric furnace body for machine tool castings.

[0029] 3. In this utility model, the protective components facilitate the uniform blowing of multiple air inlets to both sides of the interior of the medium-frequency electric furnace body for machine tool castings, so as to uniformly dissipate heat inside the medium-frequency electric furnace body for machine tool castings. At the same time, the multiple air inlets facilitate the uniform distribution of air force, thereby reducing the impact of concentrated air force on the internal components of the medium-frequency electric furnace body for machine tool castings.

[0030] 4. In this utility model, the combination of the connecting cylinder and the heat dissipation component facilitates air circulation inside the medium-frequency electric furnace body for machine tool castings. At the same time, air can be blown into the inside of the medium-frequency electric furnace body for machine tool castings from the other side to improve the heat dissipation effect inside the medium-frequency electric furnace body for machine tool castings. Furthermore, the combination of multiple heat dissipation holes and multiple mesh openings on the ventilation mesh plate can further disperse the airflow, thereby improving the overheat protection effect of the medium-frequency electric furnace body for machine tool castings. Attached Figure Description

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;

[0034] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0035] Figure 4 This is a schematic diagram of the structure of the side box, air inlet pipe and connecting pipe of this utility model.

[0036] Figure 5 This is a schematic diagram of the structure of the air inlet mesh, limiting strip and pull ring of this utility model;

[0037] Figure 6 This is a schematic diagram of the structure of the connecting cylinder and the ventilation mesh plate of this utility model.

[0038] In the diagram: 1. Side box; 2. Medium frequency electric furnace body; 3. Air inlet mesh plate; 4. Air inlet pipe; 5. Connecting cylinder; 6. First fan; 7. Mounting base; 8. Support pipe; 9. Connecting pipe; 10. Temperature sensor; 11. Second fan; 12. Ventilation mesh plate; 13. Connecting block; 14. Connecting screw; 15. Limiting strip; 16. Placement plate; 17. Pull ring. Detailed Implementation

[0039] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0040] like Figures 1-6 As shown, this embodiment proposes an overheat protection device for a medium-frequency electric furnace for machine tool castings, including a side box 1, an air inlet, an air inlet mesh plate 3, an air inlet pipe 4, a protection component, a connecting cylinder 5, and a heat dissipation component. The side box 1 is installed on one side of the medium-frequency electric furnace body 2, and the air inlet is opened on one side of the side box 1 to facilitate the entry of outside air into the side box 1. The air inlet mesh plate 3 is detachably connected to the air inlet and can filter impurities in the outside air to reduce the impact of impurities on the heat dissipation of the internal components of the medium-frequency electric furnace for machine tool castings. Multiple air inlets 4 are provided, and the multiple air inlets 4 are respectively arrayed and connected to both sides of the side box 1. The protection component is disposed between the multiple air inlets 4. The connecting cylinder 5 is detachably connected to the other side of the medium-frequency electric furnace body 2, and the heat dissipation component is disposed on the connecting cylinder 5.

[0041] Specifically, the protection components include a first fan 6, a mounting base 7, a support pipe 8, a connecting pipe 9, and a temperature sensor 10. The first fan 6 is installed inside the side box 1. The mounting base 7 is fixedly connected between the first fan 6 and the inner side wall of the side box 1, allowing the first fan 6 to be stably installed inside the side box 1. The support pipe 8 is connected to the output end of the first fan 6. There are two connecting pipes 9, which are respectively connected between the support pipe 8 and multiple air inlet pipes 4. The temperature sensor 10 is installed on the side box 1. The temperature sensor 10 is electrically connected to the first fan 6 and the second fan 11 through the controller. When the temperature sensor 10 senses that the internal temperature of the medium frequency electric furnace is too high, it will send an electrical signal to start the first fan 6 or the second fan 11, or start the first fan 6 and the second fan 11 simultaneously.

[0042] When the first fan 6 is started, the first fan 6 can blow air to the plurality of air inlet pipes 4 through the support pipe 8 and the two connecting pipes 9, so as to uniformly blow air to both sides of the inside of the machine tool casting medium-frequency furnace body, thereby uniformly dissipating heat from the inside of the machine tool casting medium-frequency furnace body, and facilitating the overheat protection of the medium-frequency furnace body 2.

[0043] Further, the heat dissipation assembly comprises a second fan 11, a plurality of heat dissipation openings, and a ventilation mesh plate 12. The second fan 11 is installed on the outer side wall of the connecting cylinder 5, and the output end of the second fan 11 is connected with the connecting cylinder 5. The plurality of heat dissipation openings are arranged on the connecting cylinder 5, which facilitates the heat dissipation of the inside of the medium-frequency furnace body 2. The ventilation mesh plate 12 is fixedly connected to the inner side wall of the connecting cylinder 5. Through the ventilation mesh plate 12 and the plurality of heat dissipation openings, the impurities from the outside can be reduced from entering the inside of the medium-frequency furnace body 2.

[0044] When the first fan 6 is started and the plurality of air inlet pipes 4 blow air to the inside of the medium-frequency furnace body 2, the hot air in the inside of the medium-frequency furnace body 2 can be discharged through the ventilation mesh plate 12 and the plurality of heat dissipation openings, so as to facilitate the circulation and replacement of the hot air in the inside of the medium-frequency furnace body 2, thereby overheat protection of the medium-frequency circuit body. At the same time, the second fan 11 can also be started, so that the second fan 11 blows air to the inside of the medium-frequency furnace body 2 through the connecting cylinder 5 and the ventilation mesh plate 12, thereby blowing air to the other side of the medium-frequency furnace body 2 for heat dissipation, and the medium-frequency furnace body 2 can be overheat protected in all directions, thereby improving the overheat protection effect of the medium-frequency furnace body 2.

[0045] Further, a plurality of connecting blocks 13 are fixedly connected to the connecting cylinder 5, and a connecting screw 14 is threadedly connected between each connecting block 13 and the outer side wall of the medium-frequency furnace body 2.

[0046] The plurality of connecting screws 14 are screwed between the medium-frequency furnace body 2 and the plurality of connecting blocks 13, so that the connecting blocks 13 can be installed and removed on the medium-frequency furnace body 2, thereby facilitating the installation and removal of the connecting cylinder 5 on the medium-frequency furnace body 2, and the ventilation mesh plate 12 can be removed and cleaned.

[0047] Further, the side box 1 is provided with a through hole for moving the air inlet mesh plate 3, and the air inlet mesh plate 3 is symmetrically connected with two limiting strips 15. The side box 1 is provided with two limiting openings matched with the limiting strips 15. The top end of the air inlet mesh plate 3 is fixedly connected with a placing plate 16, and the top end of the placing plate 16 is fixedly connected with a pull ring 17.

[0048] Through the pull ring 17 to the placement plate 16 moves, can make the placement plate 16 drive the air inlet net plate 3 moves, will air inlet net plate 3 through the through hole installation on the side edge box 1, through the cooperation of limiting strip 15 and limiting mouth, it is convenient to increase the stability of air inlet net plate 3 on the side edge box 1 installation new style, in order to facilitate the impurity in the outside air filtration, also can through the pull ring 17 to the placement plate 16 moves, make the placement plate 16 drive the air inlet net plate 3 moves, will air inlet net plate 3 moves out of the side edge box 1, so that the air inlet net plate 3 can be replaced and cleaned.

[0049] In the embodiment, when the temperature sensor 10 senses that the temperature inside the intermediate frequency electric furnace body is too high, an electric signal is sent to start the first fan 6, so that the first fan 6 blows air uniformly to the support pipe 8 and the two connecting pipes 9, so that the plurality of air inlet pipes 4 blow air uniformly to both sides inside the intermediate frequency electric furnace body for machine tool castings, and the hot air inside the intermediate frequency electric furnace body 2 flows out through the ventilation net plate 12 and the plurality of heat dissipation openings, so as to facilitate the circulation and replacement of the hot air inside the intermediate frequency electric furnace body 2, thereby overheat protection of the intermediate frequency electric furnace body 2 can be realized.

[0050] At the same time, when it is necessary to improve the heat dissipation effect of the intermediate frequency electric furnace body 2, the second fan 11 is started, so that the second fan 11 blows air to the intermediate frequency electric furnace body 2 through the ventilation net plate 12, so as to dissipate heat inside the intermediate frequency electric furnace body 2 on the other side, thereby improving the heat dissipation effect of the intermediate frequency electric furnace body 2.

[0051] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An overheat protection device for a medium-frequency electric furnace used for machine tool castings, characterized in that, The utility model relates to a side box (1) is installed to the one side of intermediate frequency electric furnace body (2), the air inlet is opened to the one side of side box (1), the air inlet screen (3) is detachably connected at the air inlet, the air inlet pipe (4) is provided as a plurality of, and a plurality of air inlet pipe (4) is respectively arrayed and communicated in the two sides of side box (1), the protection assembly is arranged between a plurality of air inlet pipe (4), the connecting cylinder (5) is detachably connected in the other side of intermediate frequency electric furnace body (2), the heat dissipation assembly is arranged on connecting cylinder (5). The protection assembly includes: First fan (6) is installed in side box (1), Mounting seat (7) is fixedly connected between first fan (6) and the inner side wall of side box (1), Support pipe (8) is communicated on the output end of first fan (6), Two connecting pipes (9) are arranged, and two connecting pipes (9) are respectively communicated between support pipe (8) and a plurality of air inlet pipes (4), Temperature sensor (10) is installed on side box (1). The heat dissipation assembly includes:

2. The overheat protection device for an intermediate frequency electric furnace for machine tool casting according to claim 1, characterized in that, Second fan (11) is installed on the outer side wall of connecting cylinder (5), and the output end of second fan (11) is connected with connecting cylinder (5) through, A plurality of heat dissipation openings are arranged on the connecting cylinder (5), Ventilation screen (12) is fixedly connected on the inner side wall of connecting cylinder (5). A plurality of connecting blocks (13) are fixedly connected on the connecting cylinder (5), and a plurality of connecting blocks (13) are threadedly connected with connecting screws (14) between the outer side wall of intermediate frequency electric furnace body (2). The side box (1) is provided with a through hole for moving the air inlet screen (3), and the air inlet screen (3) is symmetrically connected with two limiting strips (15), and the side box (1) is provided with two limiting openings matched with the limiting strips (15). The top of the air inlet screen (3) is fixed with a placing plate (16), and the top of the placing plate (16) is fixedly connected with a pull ring (17).

3. The overheat protection device for an intermediate frequency electric furnace for machine tool casting according to claim 2, characterized in that, ​ ​ ​ ​ 4. The overheat protection device for an intermediate frequency electric furnace for machine tool casting according to claim 3, characterized in that, ​ 5. The overheat protection device for an intermediate frequency electric furnace for machine tool casting according to claim 4, characterized in that, ​ 6. The overheat protection device for an intermediate frequency electric furnace for machine tool casting according to claim 5, characterized in that, ​

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