Manual control device for liquid receiving opening flashboard of holding furnace

Abstract

The manual control device comprises a vertical flashboard which is connected to the liquid receiving opening of the heat preservation furnace in a lifting and sliding mode, a machine frame is erected on the liquid receiving opening of the heat preservation furnace, the flashboard is connected to the machine frame in a lifting and sliding mode, and a driving mechanism used for driving the flashboard to ascend and descend is installed on the machine frame. The rack comprises vertical sliding frames which are arranged on the two sides of an outlet of a liquid receiving opening of the heat preservation furnace in a bilateral symmetry mode, a horizontal sliding connecting rod is arranged at the upper end of the vertical gate plate, and the two ends of the sliding connecting rod are connected to the vertical sliding frames on the corresponding sides in a sliding mode respectively. The pneumatic control device is simple in structure, reasonable in design, low in cost and high in safety, when the pneumatic control device for the gate plate at the liquid receiving opening of the holding furnace fails, the gate plate can be manually controlled to be opened and closed in time, the situation that high-temperature molten aluminum overflows out of the launder, personal injury of operators or equipment loss is caused is avoided, and specialized and safe production is facilitated.

Description

Technical Field

[0001] The utility model relates to a manual control device for a liquid receiving port gate of a heat preservation furnace. Background Art

[0002] Currently, during converter operation in the melting and casting production process, the holding furnace's liquid inlet gate control device utilizes a pneumatic control mechanism. When molten aluminum from the smelting furnace is transferred to the holding furnace, if the control cylinder for the gate fails and the gate cannot open normally, high-temperature aluminum can overflow from the launder, causing personal injury to operators or equipment damage, posing a high safety risk. To address this issue, a manual control device for the holding furnace's liquid inlet gate has been designed and manufactured. If the pneumatic control mechanism fails, the gate can be manually opened and closed, significantly reducing the risk of aluminum leakage from the launder. Utility Model Content

[0003] In view of this, the purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a manual control device for the liquid receiving gate of an insulation furnace. The manual control device has a simple structure, reasonable design, low cost, and high safety, which is conducive to quickly manually controlling the opening and closing of the gate when the gate pneumatic control device fails.

[0004] The utility model is implemented by the following scheme: a manual control device for the gate plate of the liquid receiving port of an insulation furnace: it includes a vertical gate plate that is lifted and slidably connected to the liquid receiving port of the insulation furnace, a frame is mounted on the liquid receiving port of the insulation furnace, the gate plate is lifted and slidably connected to the frame, and a driving mechanism for driving the gate plate to lift is installed on the frame.

[0005] Furthermore, the frame includes vertical sliding frames symmetrically arranged on both sides of the liquid receiving port of the insulation furnace, and a horizontal sliding connecting rod is provided at the upper end of the vertical gate plate, and the two ends of the sliding connecting rod are respectively slidably connected to the vertical sliding frames on the corresponding sides.

[0006] Furthermore, a bearing mounting frame is horizontally placed between the upper ends of the two vertical sliding frames, the driving mechanism is installed on the bearing mounting frame, and the left and right sides of the bearing mounting frame extend out of the area between the two vertical sliding frames to form a cantilever mounting frame.

[0007] Furthermore, a cylinder fixing seat is installed under the end of the cantilever mounting frame, and the driving mechanism includes a chain transmission mechanism and a cylinder. The cylinder is vertically installed on the side of the cylinder fixing seat, and the chain transmission mechanism is installed on the load-bearing mounting frame and the cantilever mounting frame. The two ends of the chain on the chain transmission mechanism are respectively connected to the movable end of the cylinder and the middle part of the sliding connecting rod.

[0008] Furthermore, the chain transmission mechanism includes two sprockets and a chain, one of the sprockets is connected to the end of the cantilever mounting frame for vertical rotation corresponding to the cylinder, and the other sprocket is connected to the load-bearing mounting frame for vertical rotation corresponding to the gate plate. The chain is assembled on the two sprockets, and the two ends of the chain are guided vertically downward through the sprockets on the same side and connected to the movable end of the cylinder or the middle of the sliding connecting rod.

[0009] Furthermore, a manual drive mechanism is provided on the cantilever mounting frame between the two sprockets, and the manual drive mechanism includes a screw rod, a handwheel is screwed onto the outside of the screw rod, and the handwheel is rotatably connected to the cantilever mounting frame. The lower end of the screw rod passes through the cantilever mounting frame, and the upper end of the screw rod is rotatably connected to a groove wheel, and the wheel groove on the groove wheel resists the chain.

[0010] Furthermore, a U-shaped seat is installed on the upper end of the screw, with both ends of the U-shaped seat facing upward, the bottom of the U-shaped seat is fixed to the upper end of the screw, and the groove wheel is rotatably connected between the two vertical parts of the U-shaped seat.

[0011] Furthermore, the handwheel includes a rotating sleeve, the inner hole of the rotating sleeve is provided with a thread that cooperates with the screw, and a plurality of outwardly inclined connecting rods are arranged at intervals on the outer periphery of one end of the rotating sleeve, and the outer ends of adjacent connecting rods are connected by arc connecting rods. A rotating hole is provided on the upper surface of the cantilever mounting frame corresponding to the rotating sleeve, and a through hole is provided on the lower surface of the cantilever mounting frame corresponding to the screw. The axial core line of the through hole is the same as the axial core line of the rotating hole, the through hole is connected to the rotating hole, the diameter of the through hole is smaller than the diameter of the rotating hole, and a step surface for the rotating sleeve to abut is formed at the connection between the through hole and the rotating hole.

[0012] Furthermore, the upper end of the vertical gate plate is connected to the outer wall of the sliding connecting rod through a plurality of structural connecting rods. The length of the sliding connecting rod is greater than the horizontal length of the vertical gate plate. A vertical sliding groove is provided at the end of the corresponding sliding connecting rod on the vertical sliding frame.

[0013] Furthermore, a limit rod is inserted horizontally between the middle parts of the front sides of the two vertical sliding frames, a horizontal limit plate facing forward is installed on the upper end of the vertical gate corresponding to the limit rod, and a plug-in sleeve is provided at the end of the limit rod corresponding to the middle part of the front side of the vertical sliding frame.

[0014] Compared with the existing technology, the utility model has the following beneficial effects: simple structure, reasonable design, low cost, high safety. When the pneumatic control device of the gate plate of the liquid receiving port of the holding furnace fails, the gate plate can be manually and promptly controlled to open and close, thereby preventing high-temperature aluminum liquid from overflowing the flow channel and causing personal injury to operators or equipment loss, thereby facilitating professional and safe production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0017] Figure 3 This is a side view of the structure of the sheave and U-shaped seat assembly according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic top view of the limiting mechanism of an embodiment of the utility model.

[0019] In the figure: 1-insulating furnace; 2-vertical gate; 3-frame; 4-driving mechanism; 5-vertical sliding frame; 6-sliding connecting rod; 7-structural connecting rod; 8-vertical slide; 9-limiting rod; 10-horizontal limiting plate; 11-plug-in sleeve; 12-bearing mounting frame; 13-cantilever mounting frame; 14-cylinder fixing seat; 15-cylinder; 16-sprocket; 17-chain; 18-manual driving mechanism; 19-screw; 20-handwheel; 21-grooved wheel; 22-U-shaped seat; 23-rotating sleeve; 24-connecting rod; 25-handwheel handle; 26-rotating hole; 27-through hole; 28-guide groove; 29-guide limit block. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] like Figure 1-4 As shown, a manual control device for the gate of the liquid receiving port of an insulation furnace includes a vertical gate 2 that is slidably connected to the liquid receiving port of the insulation furnace 1, and the lifting and lowering of the vertical gate realizes the opening and closing of the liquid receiving port of the insulation furnace. A frame 3 is provided on the liquid receiving port of the insulation furnace, and the gate is slidably connected to the frame. A driving mechanism 4 for driving the gate to lift is installed on the frame, and the gate is lifted and lowered by the driving mechanism.

[0024] The cam is connected to the vertical sliding frame 5 by the vertical sliding frame 5, and the two ends of the cam are connected to the vertical sliding frame 5 on the vertical side by the vertical sliding frame 5. The vertical gate is limited by the horizontal limit plate and the limit rod.

[0025] In this embodiment, for the sake of reasonable design, a load-bearing mounting frame 12 is placed horizontally between the upper ends of the two vertical sliding frames, and the driving mechanism is installed on the load-bearing mounting frame. The left and right sides of the load-bearing mounting frame extend out of the area between the two vertical sliding frames to form a cantilever mounting frame 13, that is, the driving mechanism is installed in the area between the load-bearing mounting frame and the cantilever mounting frame.

[0026] In this embodiment, in order to realize the pneumatic lifting of the vertical gate, a cylinder fixing seat 14 is installed under the end of the cantilever mounting frame, and the driving mechanism includes a chain transmission mechanism and a cylinder 15. The cylinder is vertically installed on the side of the cylinder fixing seat, and the chain transmission mechanism is installed on the load-bearing mounting frame and the cantilever mounting frame. The two ends of the chain on the chain transmission mechanism are respectively connected to the movable end of the cylinder and the middle part of the sliding connecting rod. When in use, the chain on the chain transmission mechanism is driven to move by the extension and contraction of the cylinder to realize the lifting or lowering of the vertical gate; more specific structure of the chain transmission mechanism The chain transmission mechanism includes two sprockets 16 and a chain 17, one of which is connected to the end of the cantilever mounting frame by vertical rotation corresponding to the end of the cylinder, and the other sprocket is connected to the load-bearing mounting frame by rotation corresponding to the middle part of the upper end of the vertical gate plate. The load-bearing mounting frame can be provided with a through-hole for the chain to pass through. The chain is assembled on the two sprockets, and the two ends of the chain are guided vertically downward by the sprockets on the same side and connected to the movable end of the cylinder or the middle part of the sliding connecting rod. Through the cooperation of the chain and the sprocket, the overall movement process is made smoother, and the extension and contraction of the cylinder drives the pneumatic lifting of the vertical gate plate.

[0027] In this embodiment, in order to be able to manually control the opening and closing of the gate in time when the cylinder fails, so as to avoid the high-temperature aluminum liquid overflowing the launder and causing personal injury to the operators or equipment loss, a manual drive mechanism 18 is provided between the two sprockets on the cantilever mounting frame, and the manual drive mechanism includes a screw 19, and a handwheel 20 is screwed to the outside of the screw, and the handwheel is rotatably connected to the cantilever mounting frame. The lower end of the screw passes through the cantilever mounting frame, that is, the screw is driven to rise and fall by the rotation of the handwheel, and the upper end of the screw is rotatably connected to a groove wheel 21, and the wheel groove on the groove wheel is against the chain. By rising or falling of the screw, the groove wheel can lift the middle part of the chain. At this time, due to the failure of the cylinder, the chain end on one side of the cylinder end is fixed, and the middle part of the chain is lifted, so that the chain on the sprocket corresponding to the vertical gate plate rises and lifts the vertical gate plate. On the contrary, since the groove wheel descends, the chain no longer lifts the vertical gate plate, and the vertical gate plate descends under the action of gravity.

[0028] In this embodiment, in order to specifically realize the installation of the groove wheel, a U-shaped seat 22 is installed at the upper end of the screw, with both ends of the U-shaped seat facing upward, the bottom of the U-shaped seat is fixed to the upper end of the screw, and the groove wheel is rotatably connected between the two vertical parts of the U-shaped seat through a pin shaft.

[0029] In this embodiment, in order to realize the lifting and lowering of the screw driven by the handwheel, its specific structure is as follows: the handwheel includes a rotating sleeve 23, and the inner hole of the rotating sleeve is provided with a thread that cooperates with the screw, that is, the inner thread of the rotating sleeve cooperates with the screw to realize the lifting and lowering of the screw by rotating the rotating sleeve. A plurality of outwardly inclined connecting rods 24 are arranged at intervals on the outer periphery of one end of the rotating sleeve, and the outer ends of adjacent connecting rods are connected by arc connecting rods to form a handwheel handle 25. A rotating hole 26 is provided on the upper surface of the cantilever mounting frame corresponding to the rotating sleeve. When in use, the non-connecting rod end of the rotating sleeve is rotatably connected to the rotating hole, and the handwheel handle extends out of the rotating hole, and the rotating hole does not penetrate the cantilever. Arm mounting bracket, a through hole 27 is provided on the lower surface of the cantilever mounting bracket corresponding to the screw, the axial core line of the through hole is the same as the axial core line of the rotating hole, the through hole is connected to the rotating hole, which is convenient for the screw to extend, and the diameter of the through hole is smaller than the diameter of the rotating hole, so that the connection between the through hole and the rotating hole forms a step surface for the rotating sleeve to abut. When in use, it is necessary to grasp the U-shaped seat and then turn the handwheel to prevent the screw from rotating with the rotation of the handwheel. Of course, a vertical guide groove 28 can also be provided on the outer periphery of the screw along the axial direction, and a guide limit block 29 is provided in the through hole corresponding to the guide groove. The guide limit block cooperates with the guide groove to prevent the screw from rotating with the rotation of the handwheel.

[0030] In this embodiment, when in use, the steps for manually opening the gate plate are: first pull out the limit rod above the vertical gate plate, rotate the handwheel to make the chain rise and drive the vertical gate plate below to rise, and when it rises to the upper limit position to confirm that the vertical gate plate is fully opened, insert the limit rod to prevent the vertical gate plate from falling; the steps for manually closing the gate plate are: first pull out the limit rod on the front side of the vertical gate plate, rotate the handwheel to make the chain descend, and then under the action of gravity, the vertical gate plate below descends, and when it descends to the lower limit position to confirm that the vertical gate plate is fully closed, insert the limit rod.

[0031] If words such as "first" and "second" are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish between components. Unless otherwise stated, the above words have no special meaning.

[0032] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0033] In addition, the orientations or positional relationships indicated by terms such as "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" used in any of the technical solutions disclosed in the above-mentioned utility model are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this patent, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this patent. Unless otherwise stated, the terms used to indicate shapes used in any of the technical solutions disclosed in the above-mentioned utility model include shapes that are approximate, similar, or close to them.

[0034] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A manual control device for the gate of a liquid receiving port of a holding furnace, characterized by: It includes a vertical gate plate that is lifted and slidably connected to the liquid receiving port of the holding furnace, a frame is mounted on the liquid receiving port of the holding furnace, the gate plate is lifted and slidably connected to the frame, and a driving mechanism for driving the gate plate to lift is installed on the frame; The frame includes vertical sliding frames symmetrically arranged on both sides of the liquid receiving port outlet of the holding furnace; A load-bearing mounting frame is horizontally placed between the upper ends of the two vertical sliding frames, and the driving mechanism is mounted on the load-bearing mounting frame. The left and right sides of the load-bearing mounting frame extend out of the area between the two vertical sliding frames to form a cantilever mounting frame; The driving mechanism includes a chain transmission mechanism, and the chain transmission mechanism includes two sprockets and a chain; A manual drive mechanism is provided on the cantilever mounting frame between the two sprockets, and the manual drive mechanism includes a screw rod, a hand wheel is screwed onto the outside of the screw rod, and the hand wheel is rotatably connected to the cantilever mounting frame, the lower end of the screw rod passes through the cantilever mounting frame, and the upper end of the screw rod is rotatably connected to a groove wheel, and the wheel groove on the groove wheel resists the chain.

2. The manual control device for the liquid receiving port gate of the holding furnace according to claim 1, characterized in that: A horizontal sliding connecting rod is provided at the upper end of the vertical gate plate, and both ends of the sliding connecting rod are respectively slidably connected to the vertical sliding frame on the corresponding side.

3. The manual control device for the liquid receiving port gate of the holding furnace according to claim 2, characterized in that: A cylinder fixing seat is installed under the end of the cantilever mounting frame, and the driving mechanism also includes a cylinder, which is vertically installed on the side of the cylinder fixing seat. The chain transmission mechanism is installed on the load-bearing mounting frame and the cantilever mounting frame, and the two ends of the chain on the chain transmission mechanism are respectively connected to the movable end of the cylinder and the middle part of the sliding connecting rod.

4. The manual control device for the liquid receiving port gate of the holding furnace according to claim 3, characterized in that: One sprocket is connected to the end of the cantilever mounting frame for vertical rotation corresponding to the cylinder, and the other sprocket is connected to the load-bearing mounting frame for vertical rotation corresponding to the gate plate. The chain is assembled on the two sprockets, and the two ends of the chain are guided vertically downward through the sprockets on the same side and connected to the movable end of the cylinder or the middle of the sliding connecting rod.

5. The manual control device for the liquid receiving port gate of the holding furnace according to claim 1, characterized in that: A U-shaped seat is installed on the upper end of the screw, with both ends of the U-shaped seat facing upwards. The bottom of the U-shaped seat is fixed to the upper end of the screw, and the groove wheel is rotatably connected between the two vertical parts of the U-shaped seat.

6. The manual control device for the liquid receiving port gate of the holding furnace according to claim 1, characterized in that: The handwheel includes a rotating sleeve, an inner hole of the rotating sleeve is provided with a thread that cooperates with the screw, a plurality of outwardly inclined connecting rods are arranged at intervals on the outer periphery of one end of the rotating sleeve, and the outer ends of adjacent connecting rods are connected by arc connecting rods, a rotating hole is provided on the upper surface of the cantilever mounting frame corresponding to the rotating sleeve, and a through hole is provided on the lower surface of the cantilever mounting frame corresponding to the screw, the axial core line of the through hole is the same as the axial core line of the rotating hole, the through hole is connected to the rotating hole, the diameter of the through hole is smaller than the diameter of the rotating hole, and a step surface for the rotating sleeve to abut is formed at the connection between the through hole and the rotating hole.

7. The manual control device for the liquid receiving port gate of the holding furnace according to claim 2, characterized in that: The upper end of the vertical gate plate is connected to the outer wall of the sliding connecting rod through a plurality of structural connecting rods. The length of the sliding connecting rod is greater than the horizontal length of the vertical gate plate. A vertical sliding groove is provided at the end of the corresponding sliding connecting rod on the vertical sliding frame.

8. The manual control device for the liquid receiving port gate of the holding furnace according to claim 2, characterized in that: A limit rod is inserted horizontally between the middle parts of the front sides of the two vertical sliding frames. A horizontal limit plate facing forward is installed on the upper end of the vertical gate corresponding to the limit rod. A plug-in sleeve is provided at the end of the limit rod corresponding to the middle part of the front side of the vertical sliding frame.

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