Heat preservation type molten metal filtering device
By designing a rotatable filter plate structure, the problem of existing molten metal filtering devices that need to be shut down and replaced when the filter plate is blocked is solved, achieving efficient filtration of molten metal and improving production efficiency.
Patent Information
- Application Number
- CN202421630693.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The existing molten metal filtering devices need to shut down and replace the filter plate when the filter plate is blocked, resulting in low production efficiency.
An insulated molten metal filter device is designed, adopting a rotatable filter plate structure, and the worm and worm gear are driven by a motor, so that the upper and lower filter plates can be used alternately to avoid shutdown and replacement.
It is realized that when replacing one filter plate, the other filter plate can continue to perform filtration, avoid shutdown, improve production efficiency, and ensure the stability of the filter chamber and filter plate through the self-locking mechanism between the worm and the worm gear.
Smart Images
Figure CN222765756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of filtering devices, in particular to a heat-insulating molten metal filtering device. Background Art
[0002] In the prior art, when molten metal is processed, such as molten aluminum products, it is often necessary to filter the metal liquid to preliminarily remove impurities.
[0003] However, in the prior art, the traditional filtering device of this type is simply designed. When filtering through the filter plate, once the filter plate is blocked, the filter plate needs to be replaced, so the entire filtering system needs to be shut down and wait. In this way, the entire filtering efficiency is low, which will affect the overall production efficiency. Therefore, an insulated molten metal filtering device is needed to improve this problem. Utility Model Content
[0004] The purpose of the utility model is to provide a heat-insulating molten metal filtering device to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulating molten metal filtering device, comprising a fixed frame, side panels are fixedly arranged on all sides of the outer surface of the fixed frame, a filtering mechanism for filtering the molten metal is arranged inside the fixed frame, the filtering mechanism comprises a rotating shaft, a filter bin, a filter plate, and a liquid inlet, a rotating shaft is movably arranged between the side walls through a bearing, a filter bin is fixedly arranged on the outer surface of the rotating shaft, filter plates are fixedly arranged on the upper and lower ends of the outer surface of the filter bin, a liquid inlet is fixedly arranged on one side of the side plate surface, and a transmission mechanism for driving the filter bin to rotate is arranged on one side of the side plate surface.
[0006] Preferably, the transmission mechanism includes a worm gear, an electric motor, and a worm, a worm gear being fixedly provided at one end of the rotating shaft, a motor being fixedly provided on the outer surface of the side plate, a worm gear being fixedly provided at the output shaft end of the motor through a coupling, the worm gear and the worm gear being meshed with each other, the helix lead angle of the worm gear being smaller than the equivalent friction angle between the meshing teeth of the worm gear and the worm gear, and the rotating shaft, the filter bin, and the filter plate can be conveniently driven to rotate through the transmission mechanism, so that the upper and lower filter plates can be filtered alternately, so that when one filter plate is replaced, the other filter plate can continue to perform filtering work, thereby not affecting the normal use of the entire system; and because the helix lead angle of the worm gear is smaller than the equivalent friction angle between the meshing teeth of the worm gear and the worm gear, the worm gear and the worm gear can be self-locking, thus ensuring that when the motor does not rotate, the rotating shaft, the worm gear and the filter bin will not rotate autonomously, thereby ensuring the stability of the filter bin and the filter plate when in use.
[0007] Preferably, a connecting flange is fixedly provided at one end of the liquid inlet, and the liquid inlet can be conveniently connected to other pipelines through the connecting flange.
[0008] Preferably, a locking screw is provided between the filter plate and the filter bin, and the filter plate and the filter bin are fixedly connected by the locking screw. The filter plate and the filter bin can be conveniently fixedly connected together by the locking screw, and the filter plate can be disassembled and replaced at any time when it is necessary.
[0009] Preferably, a heat-insulating cavity is provided inside the side plate, and the heat transfer can be reduced through the heat-insulating cavity to play a role in heat preservation and prevent the molten metal from solidifying inside the device.
[0010] Preferably, a notch is provided on the surface of the filter bin near the liquid inlet, through which the molten metal to be filtered can be conveniently introduced into the filter bin, and then filtered through the filter plate at the lower end under the action of gravity and then flows out from the lower end of the entire device.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. When the filter plate needs to be replaced, the worm is driven by the motor to rotate, so that the worm can drive the worm wheel to rotate, so that the rotating shaft can rotate, so that the upper and lower filter plates can be replaced, and then the clean filter plate that has not participated in the filtering work can be located at the lower end of the filter bin to participate in the filtering work, and the dirty filter plate can be located at the upper end of the filter bin waiting for replacement by the staff, so that the upper and lower filter plates can be filtered alternately, so that when one filter plate is replaced, the other filter plate can continue to perform the filtering work, and the entire system can continue to inject the material to be filtered into the filter bin without stopping, thereby not affecting the normal use of the entire system.
[0013] 2. In the utility model, since the helix angle of the worm is smaller than the equivalent friction angle between the meshing teeth of the worm and the worm wheel, the worm and the worm wheel can be self-locked. This ensures that when the motor does not rotate, the rotating shaft, the worm wheel and the filter chamber will not rotate autonomously, thereby ensuring the stability of the filter chamber and the filter plate during use, and the entire filter chamber does not require other complicated fixing work. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of a heat-insulating molten metal filtering device of the utility model;
[0015] Figure 2 This is a cross-sectional view of a heat-insulating molten metal filtering device of the utility model;
[0016] Figure 3 It is a side view of a heat-insulating molten metal filtering device of the utility model.
[0017] In the figure: 1. fixed frame; 2. rotating shaft; 3. filter chamber; 4. filter plate; 5. liquid inlet; 6. worm gear; 7. motor; 8. worm; 9. connecting flange; 10. locking screw; 11. insulation cavity; 12. notch; 13. side panel. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-3 The utility model provides a technical solution: a heat-insulating molten metal filtering device, comprising a fixed frame 1, side panels 13 are fixedly arranged on all sides of the outer surface of the fixed frame 1, a filtering mechanism for filtering the molten metal is arranged inside the fixed frame 1, the filtering mechanism comprises a rotating shaft 2, a filtering bin 3, a filtering plate 4, and a liquid inlet 5, a rotating shaft 2 is movably arranged between the side walls through a bearing, a filtering bin 3 is fixedly arranged on the outer surface of the rotating shaft 2, filter plates 4 are fixedly arranged on the upper and lower ends of the outer surface of the filtering bin 3, a liquid inlet 5 is fixedly arranged on one side of the surface of the side panel 13, and a transmission mechanism for driving the filtering bin 3 to rotate is arranged on one side of the surface of the side panel 13.
[0020] The transmission mechanism includes a worm gear 6, a motor 7, and a worm 8. A worm gear 6 is fixedly provided at one end of the rotating shaft 2, and a motor 7 is fixedly provided on the outer surface of the side plate 13. A worm 8 is fixedly provided at the output shaft end of the motor 7 through a coupling. The worm 8 and the worm gear 6 are meshed with each other. The helical lead angle of the worm 8 is smaller than the equivalent friction angle between the meshing teeth of the worm 8 and the worm gear 6. The rotating shaft 2, the filter chamber 3, and the filter plate 4 can be easily driven to rotate through the transmission mechanism, so that the upper and lower filter plates can be filtered alternately. In this way, when one filter plate is replaced, the other filter plate can continue to filter, thereby not affecting the normal use of the entire system; and because the helical lead angle of the worm 8 is smaller than the equivalent friction angle between the meshing teeth of the worm 8 and the worm gear 6, the worm 8 and the worm gear 6 can be self-locked, so that when the motor 7 does not rotate, the rotating shaft 2, the worm gear 6 and the filter chamber 3 will not rotate autonomously, thereby ensuring the stability of the filter chamber 3 and the filter plate 4 when in use;
[0021] A connecting flange 9 is fixedly provided at one end of the liquid inlet 5, and the liquid inlet 5 can be conveniently connected to other pipelines through the connecting flange 9;
[0022] A locking screw 10 is provided between the filter plate 4 and the filter chamber 3, and the filter plate 4 and the filter chamber 3 are fixedly connected by the locking screw 10. The locking screw 10 can conveniently fix the filter plate 4 and the filter chamber 3 together, and the filter plate 4 can be disassembled and replaced at any time when it is necessary to disassemble and replace it;
[0023] The side plate 13 is provided with a heat-insulating cavity 11 inside, and the heat-insulating cavity 11 can reduce the heat transfer to play a role of heat preservation and prevent the molten metal from solidifying inside the device;
[0024] A notch 12 is provided on one side of the surface of the filter chamber 3 near the liquid inlet 5, through which the molten metal to be filtered can be conveniently introduced into the filter chamber 3, and then filtered through the filter plate 4 at the lower end under the action of gravity and then flow out from the lower end of the entire device;
[0025] Working principle: When using the device, the molten metal to be filtered can be introduced into the filter chamber 3 through the liquid inlet 5 and the notch 12, and then the molten metal is filtered through the filter plate 4 at the lower end under the action of gravity and then flows out from the lower end of the entire device;
[0026] When the filter plate 4 needs to be replaced after a long period of use, the motor 7 drives the worm 8 to rotate, so that the worm 8 can drive the worm wheel 6 to rotate, so that the rotating shaft 2 can rotate, so that the upper and lower filter plates 4 can be replaced, and then the clean filter plate 4 that has not participated in the filtering work can be located at the lower end of the filter chamber 3 to participate in the filtering work, while the dirty filter plate 4 can be located at the upper end of the filter chamber 3 to wait for the staff to replace it, so that the upper and lower filter plates can filter alternately, so that when one filter plate is replaced, the other filter plate can continue to filter, thereby not affecting the normal use of the entire system;
[0027] When replacing the filter plate 4 during disassembly, attention should be paid to high temperature. The filter plate 4 can be lifted with an electric hoist during disassembly. When removing the screws, wear heat-insulating gloves and use a socket wrench to disassemble in a safe position.
[0028] Furthermore, when the device is in use, since the helix angle of the worm 8 is smaller than the equivalent friction angle between the meshing teeth of the worm 8 and the worm wheel 6, the worm 8 and the worm wheel 6 can be self-locked. This ensures that when the motor 7 does not rotate, the rotating shaft 2, the worm wheel 6 and the filter chamber 3 will not rotate autonomously, thereby ensuring the stability of the filter chamber 3 and the filter plate 4 during use, and the entire filter chamber 3 does not require other complicated fixing work.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A heat-insulating molten metal filtering device, comprising a fixed frame (1), characterized in that: Side plates (13) are fixedly arranged around the outer surface of the fixed frame (1); a filtering mechanism for filtering molten metal is arranged inside the fixed frame (1); the filtering mechanism comprises a rotating shaft (2), a filtering chamber (3), a filtering plate (4), and a liquid inlet (5); a rotating shaft (2) is movably arranged between the side plates via a bearing; a filtering chamber (3) is fixedly arranged on the outer surface of the rotating shaft (2); the filtering chamber (3) is fixedly arranged at the upper end and the lower end of the outer surface of the filtering chamber (3); a liquid inlet (5) is fixedly arranged on one side of the surface of the side plate (13); and a transmission mechanism for driving the filtering chamber (3) to rotate is arranged on one side of the surface of the side plate (13).
2. The heat-insulating molten metal filtering device according to claim 1, characterized in that: The transmission mechanism comprises a worm wheel (6), a motor (7) and a worm (8); the worm wheel (6) is fixedly arranged at one end of the rotating shaft (2); the motor (7) is fixedly arranged on the outer surface of the side plate (13); the output shaft end of the motor (7) is fixedly arranged with a worm (8) via a coupling; the worm (8) and the worm wheel (6) are meshed with each other, and the helix lead angle of the worm (8) is smaller than the equivalent friction angle between the meshing teeth of the worm (8) and the worm wheel (6).
3. The heat-insulating molten metal filtering device according to claim 1, characterized in that: A connecting flange (9) is fixedly provided at one end of the liquid inlet (5).
4. The heat-insulating molten metal filtering device according to claim 1, characterized in that: A locking screw (10) is provided between the filter plate (4) and the filter chamber (3), and the filter plate (4) and the filter chamber (3) are fixedly connected via the locking screw (10).
5. The heat-insulating molten metal filtering device according to claim 1, characterized in that: A heat-insulating cavity (11) is provided inside the side plate (13).
6. The heat-insulating molten metal filtering device according to claim 1, characterized in that: A notch (12) is provided on a side of the surface of the filter bin (3) close to the liquid inlet (5).