Automatic folding smelting furnace mouth heat preservation cover plate and smelting furnace

Abstract

The invention relates to the technical field of smelting furnace heat preservation, and provides an automatic folding smelting furnace opening heat preservation cover plate and a smelting furnace, the automatic folding smelting furnace opening heat preservation cover plate comprises a front cover, a rear cover and a driving assembly, and the front cover is hinged to the rear cover; the top of the furnace body is provided with two fixing seats which are arranged in parallel, the end, away from the front cover, of the rear cover is rotationally arranged on the fixing seats through a turnover shaft, the driving assembly comprises a large gear, a small gear, a connecting rod and a power source, the large gear is rotationally arranged on the fixing seats, the small gear is fixed to the turnover shaft, and the connecting rod is connected with the power source. The large gear is meshed with the small gear, the power source drives the large gear to rotate, one end of the connecting rod is hinged to the front cover, the other end of the connecting rod is hinged to the fixing base, and the hinged point of the connecting rod on the fixing base and the small gear are arranged in a spaced mode. The automatic folding smelting furnace mouth heat preservation cover plate has the advantages of being small in occupied space and high in environment application capacity.

Description

Technical Field

[0001] The present application belongs to the technical field of thermal insulation covers, and more specifically, to an automatic folding thermal insulation cover plate for a smelting furnace mouth and a smelting furnace. Background Art

[0002] Using the induction of materials The electric furnace that heats or melts the material is called an induction furnace. Induction furnaces are usually divided into and Under the action of the alternating electromagnetic field in the induction furnace, the material produces Thus, the heating or melting effect is achieved. The induction furnace has an electrical efficiency of more than 90%. , alloy, It has outstanding advantages in alloys, heat-resistant, corrosion-resistant, wear-resistant alloys and pure metals, and its application is becoming more and more common. The general melting temperature can reach above 1750℃, and the temperature for refractory materials is even higher. With the advancement of technology, although the indicators of induction furnaces in environmental protection and energy saving are constantly improving, and even research and application have been made in furnace mouth insulation (thermal radiation isolation, weakening heat convection), it is found through consulting the data that such applications are limited to covering in atmospheric environment, and no design scheme suitable for insulation covering of vacuum induction melting furnaces has been found so far.

[0003] For example, the patent with application number 201620513391.1 discloses a transmission structure for the insulation cover of an induction furnace. The design purpose of the patent is to use an electric push rod to realize the opening and closing of the insulation cover to the furnace mouth, so as to reduce the heat loss caused by heat radiation. However, the transmission structure needs to reserve a large space on the side of the insulation cover, which makes the transmission structure occupy a large space and has certain limitations in applicable occasions. Moreover, the flipping angle range of the insulation cover is small. When the electric furnace is shaking the ladle (generally used in the metal smelting process) and pouring the ladle, the insulation furnace cover needs to be fully opened before it can proceed. In addition, there is no such large installation space around the vacuum furnace, and the transmission structure of the insulation cover of the induction furnace is not suitable. Summary of the invention

[0004] In view of the deficiency of the insulation cover transmission structure in the prior art that occupies a large space, the purpose of the embodiment of the present application is to provide an automatic folding smelting furnace mouth insulation cover, which has the advantages of occupying a small space and having strong environmental adaptability.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide an automatic folding smelting furnace mouth insulation cover, including a front cover, a rear cover and a driving assembly, the front cover and the rear cover are hinged; two parallel fixed seats are provided on the top of the furnace body, and the end of the rear cover away from the front cover is rotatably set on the fixed seat through a flip axis, and the driving assembly includes: a large gear, a small gear, a connecting rod and a power source, the large gear is rotatably set on the fixed seat, the small gear is fixed on the flip axis, the large gear and the small gear are meshed, the power source drives the large gear to rotate, one end of the connecting rod is hinged on the front cover, and the other end is hinged on the fixed seat, and the hinge point of the connecting rod on the fixed seat is located at a distance from the small gear.

[0006] In one embodiment, the power source includes a crank and a linear drive member, one end of the crank is fixed to the large gear, and the other end is connected to the piston rod of the linear drive member.

[0007] In one embodiment, the linear drive member is an electric push rod, a pneumatic cylinder or an oil cylinder.

[0008] In one embodiment, the large gear is rotatably disposed on a fixed seat via a rotating shaft.

[0009] In one embodiment, first fixing arms are fixedly provided on both sides of the rear cover, and the first fixing arms are fixedly connected to the flip shaft; second fixing arms are provided on both sides of the front cover, and the second fixing arms are hinged to the rear cover through a pin shaft.

[0010] In one embodiment, one end of the connecting rod is hinged to the side surface of the front cover through a first fixed shaft, and the other end of the connecting rod is hinged to the fixing seat through a second fixed shaft.

[0011] Another object of the present application is to provide a smelting furnace, comprising a furnace body and the automatic folding smelting furnace mouth insulation cover as described above.

[0012] The beneficial effects of an automatic folding smelting furnace mouth insulation cover and a smelting furnace provided by the present application are:

[0013] 1. The insulation cover is divided into a front cover and a rear cover, which are hinged and have a simple and exquisite structure: the unfolded area is large and the furnace mouth is effectively covered; after folding, the space occupied is small, and the space occupied is the idle space above the furnace body, which is very convenient for installation and layout; the insulation cover has been applied to vacuum induction melting furnaces, and can achieve furnace mouth coverage insulation and thermal radiation isolation in a vacuum furnace environment, which is the first in the industry;

[0014] 2. The thermal insulation cover is divided into a foldable front cover and a flat rear cover, and a connecting rod and a fixing seat are used to form a spatial four-link structure, so that the thermal insulation cover occupies less space when opened;

[0015] 3. The large gear is driven to rotate by the power source, and the large gear and the small gear are meshed to realize the opening, parking and closing of the insulation cover. The gear ratio is used to reduce the power requirement, and the opening and closing of the insulation cover is more flexible;

[0016] 4. Since the entire driving mechanism is arranged on the furnace body, such a melting furnace can realize the actions of flip casting, shaking the ladle, etc. synchronously, and has a good application prospect;

[0017] 5. The special significance of the folding insulation cover also lies in energy conservation, environmental protection and safety: covering the furnace mouth can reduce heat loss, which is beneficial to the heat accumulation and temperature rise of the electric furnace, saving electricity and reducing pollution (time); the heat radiation isolation of the furnace mouth is beneficial to the safety of the working environment, including personnel safety and equipment safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of a top view of the structure of an automatically foldable smelting furnace mouth insulation cover provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the front structure of an automatic folding smelting furnace mouth insulation cover provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of a flip-open structure of an automatic folding smelting furnace mouth insulation cover provided in an embodiment of the present application;

[0022] Figure 4 A simplified schematic diagram of the state transformation of an automatically foldable smelting furnace mouth insulation cover provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the top view of the smelting furnace provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the state of the smelting furnace provided in an embodiment of the present application being turned over and unloaded.

[0025] Among them, the reference numerals in the figure are:

[0026] 1. Front cover; 2. Rear cover; 3. Big gear; 4. Small gear; 5. Connecting rod; 6. Fixed seat; 7. Turning shaft; 8. Crank handle; 9. Rotating shaft; 10. First fixed arm; 11. Second fixed arm; 12. Pin shaft; 13. First fixed shaft; 14. Second fixed shaft; 15. Furnace body; 16. Furnace mouth; 17. Discharging shaft. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, 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, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] like Figure 1-Figure 6 As shown, a smelting furnace provided in an embodiment of the present application is now described in detail. The smelting furnace comprises a furnace body 15 and an automatically foldable smelting furnace mouth insulation cover plate arranged on the top of the furnace body 15. A furnace mouth 16 is arranged on the top of the furnace body 15, and the automatically foldable smelting furnace mouth insulation cover plate is used to open and close the furnace mouth 16; a pouring shaft 17 is also arranged on one side of the top of the furnace body 15, which is used to realize the smelting furnace to perform actions such as flip casting and shaking the ladle.

[0032] like Figure 1-Figure 4As shown, in this embodiment, the automatic folding smelting furnace mouth insulation cover comprises a front cover 1, a rear cover 2 and a driving assembly, wherein two driving assemblies are provided and are located on both sides of the front cover 1 and the rear cover 2; the front cover 1 and the rear cover 2 are hinged, and the furnace mouth 16 can be closed when the front cover 1 and the rear cover 2 are laid flat, and can be automatically folded and located on one side of the furnace mouth 16 when opened. Two parallel and symmetrically arranged fixing seats 6 are provided on the top of the furnace body 15, and one end of the rear cover 2 away from the front cover 1 is rotatably arranged on the two fixing seats 6 through a flip shaft 7.

[0033] In this embodiment, the driving assembly includes: a large gear 3, a small gear 4, a connecting rod 5 and a power source. The large gear 3 is rotatably set on the fixed seat 6, and the small gear 4 is fixed on the flip shaft 7. The large gear 3 and the small gear 4 are meshed, and the power source drives the large gear 3 to rotate. One end of the connecting rod 5 is hinged on the front cover 1, and the other end is hinged on the fixed seat 6. The hinge point of the connecting rod 5 on the fixed seat 6 is spaced from the position of the small gear 4, so that the two hinge points of the connecting rod 5, the rotation point of the small gear 4, and the hinge points of the front cover 1 and the rear cover 2 constitute a spatial four-bar structure. In this embodiment, the hinge point of the connecting rod 5 on the fixed seat 6 is lower than the hinge point of the front cover 1 and the rear cover 2. The connecting rod 5 is a non-linear rod with a certain bend. The lower end of the connecting rod 5 is on the fixed seat 6, and the higher end of the connecting rod 5 is on the front cover 1, in order to facilitate the flattening of the thermal insulation cover.

[0034] When the power source drives the large gear 3 to rotate, the small gear 4 is driven to rotate through the meshing action of the gears, and the small gear 4 synchronously drives the flip shaft 7 to rotate, and the flip shaft 7 drives the rear cover 2 to rotate, and the rear cover 2 cooperates with the connecting rod 5 to pull the front cover 1 to rotate, thereby realizing the overall movement of the front cover 1 and the rear cover 2. The movement state is as follows: Figure 4 As shown, point A is the hinge point of the connecting rod 5 on the fixed seat 6, point B is the rotation point of the pinion 4, point C is the hinge point of the front cover 1 and the rear cover 2, and point D is the hinge point of the connecting rod 5 and the front cover 1. Points A and B are fixed hinge points.

[0035] In this embodiment, the power source includes a crank 8 and a linear drive member (not shown in the figure), one end of the crank 8 is fixed to the large gear 3, and the other end is hinged to the piston rod of the linear drive member. The linear drive member is an electric push rod, a cylinder or an oil cylinder.

[0036] In this embodiment, the large gear 3 is rotatably arranged on the fixed seat 6 via the rotating shaft 9. First fixed arms 10 are symmetrically fixed on both sides of the rear cover 2, and the first fixed arms 10 are fixedly connected to the flip shaft 7; second fixed arms 11 are symmetrically arranged on both sides of the front cover 1, and the second fixed arms 11 are hinged to the rear cover 2 via a pin 12. One end of the connecting rod 5 is hinged to the side of the front cover 1 via a first fixed shaft 13, and the other end of the connecting rod 5 is hinged to the fixed seat 6 via a second fixed shaft 14.

[0037] Specifically, in this embodiment, the gear ratio of the large gear 3 to the small gear 4 is 5:2, such as the number of teeth of the large gear 3 is 60, and the number of teeth of the small gear 4 is 24. In this embodiment, the rotation angle of the rear cover 2 (closed to fully open) is 170°, at which time, the swing angle of the crank 8 is 68°, and the linear travel of the linear drive member is 94 mm.

[0038] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automatic folding smelting furnace mouth insulation cover, characterized in that: The invention comprises a front cover (1), a rear cover (2) and a driving assembly, wherein the front cover (1) and the rear cover (2) are hinged; two parallel fixed seats (6) are arranged on the top of the furnace body (15); one end of the rear cover (2) away from the front cover (1) is rotatably arranged on the fixed seat (6) through a flip shaft (7); the driving assembly comprises a large gear (3), a small gear (4), a connecting rod (5) and a power source; the large gear (3) is rotatably arranged on the fixed seat (6); the small gear (4) is fixed on the flip shaft (7); the large gear (3) and the small gear (4) are meshed; the power source drives the large gear (3) to rotate; one end of the connecting rod (5) is hinged on the front cover (1) and the other end is hinged on the fixed seat (6); the hinge point of the connecting rod (5) on the fixed seat (6) is located at a distance from the small gear (4).

2. The automatic folding smelting furnace mouth insulation cover according to claim 1, characterized in that: The power source comprises a crank (8) and a linear drive member, one end of the crank (8) is fixed on the large gear (3), and the other end is connected to the piston rod of the linear drive member.

3. The automatic folding smelting furnace mouth insulation cover according to claim 2, characterized in that: The linear drive member is an electric push rod, a pneumatic cylinder or an oil cylinder.

4. The automatic folding smelting furnace mouth insulation cover according to claim 1, characterized in that: The large gear (3) is rotatably arranged on the fixed seat (6) via a rotating shaft (9).

5. The automatic folding smelting furnace mouth insulation cover according to claim 4, characterized in that: First fixing arms (10) are fixedly provided on both sides of the rear cover (2), and the first fixing arms (10) are fixedly connected to the flip shaft (7); second fixing arms (11) are provided on both sides of the front cover (1), and the second fixing arms (11) are hinged to the rear cover (2) via a pin shaft (12).

6. The automatic folding smelting furnace mouth insulation cover according to claim 5, characterized in that: One end of the connecting rod (5) is hinged to the side of the front cover (1) via a first fixed shaft (13), and the other end of the connecting rod (5) is hinged to the fixing seat (6) via a second fixed shaft (14).

7. A smelting furnace, characterized in that: It comprises a furnace body (15) and an automatically foldable melting furnace mouth insulation cover as claimed in any one of claims 1 to 6.

Images