Multi-point pressing type sealing device for furnace door of electrothermal furnace

Abstract

The utility model discloses a multipoint pressing type electrothermal furnace door sealing device, which comprises a trolley and a plurality of pressing units, the pressing units are respectively arranged at different positions of a furnace door, and the pressing units comprise a single-point pressing unit and a double-point pressing unit. Corner area gaps and middle area gaps between a furnace opening or a boss arranged in a furnace body and a furnace door are sealed respectively, and all-directional pressing sealing of the furnace door on multiple areas of the electric heating furnace is achieved. The electric push rod and the parallelogram hinge mechanism are used for sealing the furnace door, an air source device and auxiliary equipment needed by a pneumatic connecting rod mechanism are avoided, and the space utilization rate is increased; the double-point pressing arm is driven by a hydraulic rod of the electric push rod to drive the sealing cover plate to move in an arc shape, the system is started in sequence during sealing, a gap formed between the furnace door and the furnace body can be covered, and all-directional pressing sealing of the furnace door is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric heating furnace door sealing technical field, concretely is a kind of multi-point compression type electric heating furnace door sealing device. BACKGROUND

[0002] As shown in Figure 7 Electric heating furnace is the box type structure of two ends opening, cross section is door type, and furnace is divided into multiple areas, and boss is arranged at the partition of each area.

[0003] Furnace door sealing device is generally composed of furnace door, driving assembly arranged on furnace door, sealing element and compression arm, and the furnace door sealing device of the prior art is mostly compressed by self-weight or uses pneumatic linkage mechanism to compress, the sealing property of furnace door compressed by self-weight is poor, and long time use under high temperature can easily make furnace door deformation, damage sealing effect, lead to energy waste, the furnace door is compressed and sealed using pneumatic linkage mechanism, needs additional gas source device and auxiliary element, and sealing is generally carried out in blocks, often multiple pneumatic linkage mechanisms are used as driving assembly, and corresponding air cylinder is required, not only the space capacity requirement is huge, and sealing step is complicated.

[0004] Industrial production increasingly requires intelligentization and precision, but the installation position of traditional furnace door sealing device is fixed, generally only compressed and sealed at fixed position, cannot meet diversified demand, in addition, the existing furnace door sealing device can only realize compression and sealing on inclined plane or parallel plane, cannot realize diagonal and full coverage sealing of gap between furnace door and furnace body. INVENTION CONTENTS

[0005] In view of the above-mentioned shortcomings and deficiencies, the utility model provides a kind of multi-point compression type electric heating furnace door sealing device, can realize the compression and sealing of furnace body outer wall and furnace body inside arbitrary area, diagonal sealing can also be realized, and space utilization is high.

[0006] In order to achieve the above purpose, the technical scheme of the utility model of a kind of multi-point compression type electric heating furnace door sealing device, including trolley and multiple compression units, multiple compression units are respectively installed at different positions of furnace door, the compression unit includes single-point compression unit and double-point compression unit two kinds, respectively seal the corner area gap and middle area gap between the boss arranged in furnace mouth or furnace body and furnace door, realize the all-round compression and sealing of furnace door to electric heating furnace multiple areas.

[0007] The furnace door and trolley can be detachably installed, the furnace door enters the furnace body through the trolley, and the compression and sealing of the furnace door in the furnace body is completed in any area of the furnace body through the compression unit and the boss inside the furnace body.

[0008] The pressing unit comprises a mounting channel steel, a sealing cover plate, a pressing arm and an electric push rod, one end of the pressing arm is welded and fixed with the sealing cover plate, the other end is hinged with a telescopic hydraulic rod of the electric push rod, the electric push rod is fixed together with the mounting channel steel through a push rod support; a parallelogram hinge mechanism is arranged on the pressing arm, and the parallelogram hinge mechanism is connected together with the mounting channel steel through a hinge support.

[0009] The single-point pressing unit is provided with a group of mounting channel steels, pressing arms and parallelogram hinge mechanisms, the sealing cover plate of the single-point pressing unit is a right-angle shape which is fitted with the upper end face corner area of the furnace door, heat-resistant fiber cotton is arranged on the two sides of the sealing cover plate, and the pressing head of the pressing arm is welded at the middle corner of the sealing cover plate.

[0010] The double-point pressing unit is provided with two groups of mounting channel steels, pressing arms and parallelogram hinge mechanisms, the two groups of pressing arms are fixed at the two ends of the horizontal rod to form double-point pressing arms, the two groups of pressing arms are arranged at the two ends of the electric push rod, the sealing cover plate of the double-point pressing unit is a linear type which is fitted with the middle area of the upper end face of the furnace door, and the pressing heads are welded on the sealing cover plate.

[0011] The mounting channel steel is detachably mounted at different positions of the furnace door through bolts.

[0012] The utility model has the following beneficial effects and advantages:

[0013] 1. The multi-point pressing type furnace door sealing device of the electric heating furnace adopts an electric push rod and a parallelogram hinge mechanism to seal the furnace door, avoids the gas source device and auxiliary equipment required by the pneumatic connecting rod mechanism, and improves the space utilization rate.

[0014] 2. The single-point and double-point pressing arms are driven by the telescopic hydraulic rod of the electric push rod to drive the sealing cover plate to move in an arc shape, the system is sequentially started during sealing, the gap between the furnace door and the furnace body can be covered, and the furnace door is sealed in all directions.

[0015] 3. The whole device is driven by a trolley, the sealing device can be pressed and sealed in any area of the furnace body through the transfer function of the trolley, the sealing mode is high in efficiency and energy saving, and the working efficiency of the electric heating furnace can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structure schematic view after the utility model is connected with the furnace door.

[0017] Figure 2 It is a single-point pressing unit structure schematic view of the utility model.

[0018] Figure 3 It is a double-point pressing unit structure schematic view of the utility model.

[0019] Figure 4 It is the position structure schematic diagram of the relaxed state of the utility model;

[0020] Figure 5 It is the principle schematic diagram of the relaxed state and the compacting state switching process of the utility model;

[0021] Figure 6 It is the state schematic diagram of the trolley and the furnace door connection ready to compact the furnace door of the utility model;

[0022] Figure 7 It is the furnace body structure schematic diagram of the electric heating furnace.

[0023] Among them, 1 is the furnace mouth, 2 is the boss, 100 is the single-point compacting unit, 101 is the single-point electric push rod, 102 is the single-point push rod support, 103 is the single-point parallelogram hinge mechanism, 104 is the single-point hinge support, 105 is the single-point compacting arm, 106 is the single-point sealing cover plate, 107 is the single-point installation channel steel, 108 is the heat-resistant fiber cotton; 200 is the double-point compacting unit, 201 is the double-point electric push rod, 202 is the double-point push rod support, 203 is the double-point parallelogram hinge mechanism, 204 is the double-point hinge support, 205 is the double-point compacting arm, 206 is the double-point sealing cover plate, 207 is the double-point installation channel steel, 300 is the furnace door, 400 is the trolley. DETAILED DESCRIPTION

[0024] The utility model will be further described below in conjunction with the drawings of the specification. As shown in Figure 1 The utility model discloses a multi-point compacting type electric heating furnace furnace door sealing device, including trolley 400 and multiple compacting units, multiple compacting units are detachably installed at different positions of furnace door 300 respectively, the compacting unit includes two kinds of single-point compacting unit and double-point compacting unit, respectively seals the clearance of the edge corner area and the clearance of the middle area between furnace mouth 1 or the boss 2 arranged in the furnace body and furnace door 300, realizes the all -round compacting sealing of furnace door 300 to multiple areas of electric heating furnace;Furnace door 300 and trolley 400 are detachably installed, and furnace door 300 enters the furnace body through trolley 400, and the compacting unit and the boss 2 in the furnace body interior complete the compacting sealing of furnace door in any area in the furnace body.

[0025] Further, as Figure 2As shown, the single-point pressing arm 105 of the single-point pressing unit 100 is welded and fixed with the single-point sealing cover plate 106, a hinge hole is opened in the middle of the single-point pressing arm 105, one end of the single-point four-bar hinge mechanism 103 is hinged with the hinge hole in the middle of the single-point pressing arm 105, the other end is hinged with the single-point hinge support 104, the bottom of the single-point electric push rod 101 is hinged with the single-point push rod support 102, the bottom of the single-point push rod support 102 is welded with the single-point mounting channel steel 107, the tail of the single-point pressing arm 105 is hinged with the hydraulic rod of the single-point electric push rod 101, when the hydraulic rod of the single-point electric push rod 101 is extended, the single-point four-bar hinge mechanism 103 moves, pushes the single-point pressing arm 105 to move in an arc shape, the single-point sealing cover plate 106 welded on the single-point pressing arm 105 presses the furnace wall, realizes the pressing and sealing of the edge corner area of the furnace door and the furnace mouth 1 and the boss 2.

[0026] Further, as shown in Figure 3 The double-point pressing arm 205 of the double-point pressing unit 200 is welded and fixed with the double-point sealing cover plate 206, a hinge hole is opened in the middle of the double-point pressing arm 205, a group of double-point four-bar hinge mechanisms 203 are hinged on both sides, one end of the double-point four-bar hinge mechanism 203 is hinged with the hinge hole in the middle of the double-point pressing arm 205, the other end is hinged with the double-point hinge support 204, the bottom of the double-point electric push rod 201 is hinged with the double-point push rod support 202, the bottom of the double-point push rod support 202 is welded with the double-point mounting channel steel 207, the tail of the double-point pressing arm 205 is hinged with the hydraulic rod of the double-point electric push rod 201, when the hydraulic rod of the double-point electric push rod 201 is extended, the double-point four-bar hinge mechanism 203 moves, pushes the double-point pressing arm 205 to move in an arc shape, the double-point sealing cover plate 206 welded on the double-point pressing arm 205 presses the furnace wall, realizes the pressing and sealing of the middle area of the upper end surface of the furnace door. The single-point and double-point pressing arms are driven by the hydraulic rod of the electric push rod, which drives the sealing cover plate to move in an arc shape, and the sealing system is started in sequence, which can cover the gap between the furnace door 300 and the furnace mouth 1 or the boss 2, and realize the full-range pressing and sealing of the furnace door and the furnace body.

[0027] Further, as shown in Figures 4-5 The single-point pressing unit 100 and the double-point pressing unit 200 need to be coordinated to realize the pressing and relaxation of the furnace door 300, as shown in Figure 6As shown, when the workpiece needs to be sealed and heated, the trolley 400 carries the furnace door 300 and the relaxed sealing device to the appropriate position of the furnace mouth 1 or the boss 2 in the furnace body, and then the two sets of single-point pressing units 100 are simultaneously actuated to press into place, and then the three sets of double-point pressing units 200 can be simultaneously actuated to complete the pressing and sealing of the entire end surface of the furnace door 300. When the workpiece heat treatment is completed, the three sets of double-point pressing units 200 are simultaneously actuated to relax, and then the two sets of single-point pressing units 100 can be loosened, at which time the entire device completes the sealing and loosening process of the furnace door once.

[0028] Further, the five sets of pressing units are connected to the front end surface of the furnace door 300 through mounting channel steels, the furnace door 300 and the pressing units form an integral whole, and the bottom support channel steels are welded to the trolley 400, and the middle part of the support channel steels is connected to the furnace door 300 through bolts to strengthen the support.

[0029] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can make changes, modifications, replacements and modifications to the above-mentioned embodiments within the scope of the utility model.

Claims

1. A multi-point pinch-type electric furnace door sealing device, characterized by: The trolley and the plurality of compression units are installed at different positions of the furnace door, and the compression units include single-point compression units and double-point compression units, which seal the corner gap and the middle gap between the convex platform arranged in the furnace mouth or the furnace body and the furnace door, and realize the overall compression sealing of the furnace door to the multiple areas of the electric heating furnace.

2. A multi-point pinch-type electric furnace door sealing device according to claim 1, characterized in that: The furnace door and the trolley are detachably installed, the furnace door enters the furnace body through the trolley, and the compression sealing of the furnace door of the electric heating furnace in any area of the furnace body is completed through the compression units and the convex platform inside the furnace body.

3. A multi-point pinch-type electric furnace door sealing device according to claim 1, characterized in that: The compression unit includes a mounting channel steel, a sealing cover plate, a compression arm and an electric push rod, one end of the compression arm is welded and fixed with the sealing cover plate, the other end is hinged with the telescopic hydraulic rod of the electric push rod, the electric push rod is fixed together with the mounting channel steel through a push rod support, and a parallelogram hinge mechanism is arranged on the compression arm.

4. A multi-point pinch-type electric stove door sealing device according to claim 3, characterized in that: The single-point compression unit is provided with a group of mounting channel steel, compression arm and parallelogram hinge mechanism, the sealing cover plate of the single-point compression unit is a right-angle shape matched with the corner area of the upper end surface of the furnace door, heat-resistant fiber cotton is arranged on both sides of the sealing cover plate, and the compression head of the compression arm is welded at the middle corner of the sealing cover plate.

5. A multi-point pinch-type electric stove door sealing device according to claim 3, characterized in that: The double-point compression unit is provided with two groups of mounting channel steel, compression arm and parallelogram hinge mechanism, the two groups of compression arms are fixed at both ends of the crossbar to form double-point compression arms, the two groups of compression arms are arranged at both ends of the electric push rod, the sealing cover plate of the double-point compression unit is a straight line type matched with the middle area of the upper end surface of the furnace door, and the compression heads are welded on the sealing cover plate.

6. A multi-point pinch-type electric stove door sealing device according to claim 3, characterized in that: The mounting channel steel is detachably installed at different positions of the furnace door through bolts.

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