Accurate lifting device for furnace door

Abstract

The utility model discloses a precise furnace door lifting device which comprises a furnace body and a furnace door installed on the furnace body, a lifting frame is installed on the furnace body, a stepping motor is installed on the lifting frame, a lifting chain is installed at the power output end of the stepping motor, and the end, away from the stepping motor, of the lifting chain is connected with the furnace door through a winding drum. And the stepping motor is in signal connection with external control equipment. The furnace door lifting device has the advantages that the stepping motor is arranged to replace a traditional lifting motor and can receive electric pulse signals of external control equipment and convert the electric pulse signals into angular displacement or linear displacement corresponding to the electric pulse signals, so that the lifting height of the furnace door can be accurately controlled, unnecessary manpower loss is avoided, the actual production requirement is met, and the production efficiency is improved. And meanwhile, the furnace door can be stably lifted through the sliding grooves formed in the rails, and the operation stability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace door lifting devices, in particular to a furnace door precision lifting device. Background Art

[0002] The drive system for electric furnace doors is typically mounted on the bridge columns. The motor, through a reduction gearbox, drives the drum and wire rope, moving the furnace door up and down, thereby raising and lowering it. A counterweight is also provided to reduce transmission power. Chain drive is used because the upper furnace roof experiences higher temperatures. Chains are safer and more reliable than wire ropes, have a longer service life, and offer greater flexibility. However, careful attention should be paid to the quality of the chain during use to prevent accidents caused by breakage.

[0003] Some existing furnace door lifting devices are mainly controlled by the induction signal of the proximity switch. However, during actual use, the induction device of the lifting equipment is easily blocked by accumulated dust, resulting in the induction of the signal, which can easily cause the equipment to malfunction, requiring frequent maintenance and consuming a certain amount of manpower. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of some existing furnace door lifting devices that are mainly controlled by the induction signal of the proximity switch, and then the induction device of the lifting equipment is easily blocked by accumulated dust during actual use, resulting in no induction signal, which easily causes the equipment to malfunction, requires frequent maintenance, and consumes a certain amount of manpower, and provides a precise furnace door lifting device.

[0005] The purpose of the utility model is achieved through the following technical solutions: a furnace door precision lifting device, comprising a furnace body and a furnace door installed on the furnace body, a lifting frame installed on the furnace body, a stepping motor installed on the lifting frame, a lifting chain installed at the power output end of the stepping motor, the end of the lifting chain away from the stepping motor is connected to the furnace door through a reel, and the stepping motor is connected to the external control device signal;

[0006] A track is installed on the furnace body, and a slide groove is opened in the track. The furnace door is installed in the slide groove. The furnace door is slidably connected to the slide groove through a pulley. By setting a stepper motor instead of the traditional lifting motor, it can receive the electrical pulse signal of the external control device and convert it into the corresponding angular displacement or linear displacement, so as to accurately control the lifting height of the furnace door, avoid unnecessary manpower loss, and meet actual production needs. At the same time, the slide groove in the track can make the furnace door lift stably and improve the stability of equipment operation.

[0007] A further technical solution is that a sealing groove corresponding to the track is opened in the slide groove, and a sealing strip slidingly connected to the sealing groove is installed on the furnace door. By setting the sealing groove and the sealing strip, the furnace body and the furnace door can be sealed, thereby improving the sealing of the furnace body, avoiding heat energy dissipation, and saving energy.

[0008] A further technical solution is to install corresponding infrared transmitters and infrared receivers in the track. By matching the infrared transmitters and infrared receivers, the position of the furnace door in the track can be monitored to avoid malfunction of the furnace door and further improve safety.

[0009] A further technical solution is that two sets of ear plates symmetrical about the furnace door are installed on the top of the furnace door. The two sets of ear plates are respectively connected to the lifting chains, and the lifting chains are located on the central axis of the furnace door. By arranging the lifting chain located on the central axis of the furnace door and cooperating with the two sets of ear plates, the balance of the furnace door during lifting is ensured, thereby making the operation of the furnace door more stable.

[0010] A further technical solution is that a waterproof plate is installed on the inner side of the furnace door close to the furnace body, and the furnace door is fixed to the waterproof plate by rivets. By setting the waterproof plate, the waterproof performance of the furnace door can be improved, and by setting the rivets, the installation strength of the waterproof plate can be improved.

[0011] The utility model has the following advantages: the utility model can receive the electrical pulse signal of the external control device and convert it into the corresponding angular displacement or linear displacement by setting a stepper motor instead of the traditional lifting motor, so as to accurately control the lifting height of the furnace door, avoid unnecessary manpower loss, and meet actual production needs. At the same time, the sliding groove in the track can make the furnace door lift stably and improve the stability of the equipment operation. The furnace body and the furnace door can be sealed by setting the sealing groove and the sealing strip, thereby improving the sealing of the furnace body, avoiding heat energy dissipation, and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic cross-sectional view of the overall structure of the utility model;

[0013] Figure 2 This is a partial cross-sectional schematic diagram of the furnace door structure of the present invention;

[0014] Figure 3 For the utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0015] Figure 4 For the utility model Figure 2 A magnified schematic diagram of structure B in the figure.

[0016] Figure 5 It is a top view schematic diagram of the track cross-sectional structure of the present invention.

[0017] In the figure, 1. furnace body; 2. furnace door; 3. lifting frame; 4. stepping motor; 5. reel; 6. lifting chain; 7. track; 8. pulley; 9. infrared transmitter; 10. slide; 11. ear plate; 12. sealing groove; 13. rivet; 14. waterproof board; 15. sealing strip; 16. infrared receiver; 17. brush. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1 to 5 As shown, a furnace door precision lifting device includes a furnace body 1 and a furnace door 2 mounted on the furnace body 1. A lifting frame 3 is mounted on the furnace body 1, and a stepping motor 4 is mounted on the lifting frame 3. A lifting chain 6 is mounted on the power output end of the stepping motor 4. The end of the lifting chain 6 away from the stepping motor 4 is connected to the furnace door 2 through a reel 5. The stepping motor 4 is connected to the external control device signal.

[0025] A track 7 is installed on the furnace body 1, and a slide groove 10 is opened in the track 7. The furnace door 2 is installed in the slide groove 10. The furnace door 2 is slidably connected to the slide groove 10 through a pulley 8. By setting a stepper motor 4 instead of a traditional lifting motor, it can receive the electrical pulse signal of the external control device and convert it into the corresponding angular displacement or linear displacement, so that the lifting height of the furnace door 2 can be accurately controlled, avoiding unnecessary manpower loss and meeting actual production needs. At the same time, the slide groove 10 in the track 7 can make the furnace door 2 stably lifted, thereby improving the stability of equipment operation.

[0026] A sealing groove 12 corresponding to the track 7 is opened in the slide groove 10, and a sealing strip 15 slidingly connected to the sealing groove 12 is installed on the furnace door 2. By setting the sealing groove 12 and the sealing strip 15, the furnace body 1 and the furnace door 2 can be sealed, thereby improving the sealing performance of the furnace body 1, avoiding heat dissipation, and saving energy.

[0027] Corresponding infrared transmitters 9 and infrared receivers 16 are installed in the track 7. By matching the infrared transmitters 9 and the infrared receivers 16, the position of the furnace door 2 in the track 7 can be monitored to avoid malfunction of the furnace door 2 and further improve safety.

[0028] Two sets of ear plates 11 symmetrical with respect to the furnace door 2 are installed on the top of the furnace door 2. The two sets of ear plates 11 are respectively connected to the lifting chain 6, and the lifting chain 6 is located on the central axis of the furnace door 2. By arranging the lifting chain 6 located on the central axis of the furnace door 2 and cooperating with the two sets of ear plates 11, the balance of the furnace door 2 during lifting is ensured, thereby making the operation of the furnace door 2 more stable.

[0029] A waterproof plate 14 is installed on the inner side of the furnace door 2 near the furnace body 1. The furnace door 2 is fixed to the waterproof plate 14 by rivets 13. The waterproof performance of the furnace door 2 can be improved by providing the waterproof plate 14, and the installation strength of the waterproof plate 14 can be improved by providing the rivets 13.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A furnace door precision lifting device, comprising a furnace body (1) and a furnace door (2) mounted on the furnace body (1), characterized in that: A lifting frame (3) is installed on the furnace body (1), a stepping motor (4) is installed on the lifting frame (3), a lifting chain (6) is installed at the power output end of the stepping motor (4), and the end of the lifting chain (6) away from the stepping motor (4) is connected to the furnace door (2) through a reel (5), and the stepping motor (4) is connected to the external control device signal; A track (7) is installed on the furnace body (1), a slide groove (10) is provided in the track (7), the furnace door (2) is installed in the track (7), and the furnace door (2) is slidably connected to the track (7) via a pulley (8).

2. The furnace door precision lifting device according to claim 1, characterized in that: A sealing groove (12) corresponding to the track (7) is provided in the slide groove (10), and a sealing strip (15) slidably connected to the sealing groove (12) is installed on the furnace door (2).

3. The furnace door precision lifting device according to claim 1, characterized in that: A corresponding infrared transmitter (9) and an infrared receiver (16) are installed in the track (7).

4. The furnace door precision lifting device according to claim 1, characterized in that: Two groups of ear plates (11) symmetrical with respect to the furnace door (2) are installed on the top of the furnace door (2), and the two groups of ear plates (11) are respectively connected to the lifting chains (6), and the lifting chains (6) are arranged on the central axis of the furnace door (2).

5. The furnace door precision lifting device according to claim 1, characterized in that: A waterproof plate (14) is installed on the inner side of the furnace door (2) close to the furnace body (1), and the furnace door (2) is fixed to the waterproof plate (14) via rivets (13).

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