CN215176951U

CN215176951U - Electric furnace door lever device

Info

Publication number: CN215176951U
Application number: CN202121166599.8U
Authority: CN
Inventors: 杨少强; 林涵勇; 徐素昌
Original assignee: Xiaogan Jinda Iron And Steel Co ltd
Current assignee: Xiaogan Jinda Iron And Steel Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-14
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses an electric furnace door lever device which realizes the up-and-down lifting of a furnace door through the lever principle, thereby realizing the opening and closing of the furnace door, having simple and labor-saving structure, playing the role of saving space and simultaneously avoiding the collision of an operator during the opening process of the furnace door; meanwhile, the furnace door supporting frame is arranged to support the furnace door, the normal lifting of the furnace door is guaranteed, and the sliding assisting structure is arranged at the side end of the furnace door to reduce the friction force between the furnace door and the furnace door supporting frame, so that the effect of saving labor is further achieved.

Description

Electric furnace door lever device

Technical Field

The utility model discloses electric arc furnace smelting technical field specifically is an electric furnace gate lever apparatus.

Background

The short-flow steelmaking process of the electric arc furnace integrates the current advanced steelmaking technology, and becomes one of two main flows of the world steel production by virtue of the advantages of the short-flow steelmaking process in the aspects of investment, efficiency, energy conservation, energy benefiting, environmental protection and the like. As is well known, scrap preheating is one of the important energy-saving techniques for electric furnace steelmaking. In recent 20 years, various improvements and optimizations are made on scrap steel preheating and electric furnace charging modes in various domestic scientific research systems, heavy industry equipment manufacturers and metallurgical enterprises.

Most of furnace doors of electric arc furnaces at the present stage adopt original hinged rotation to realize opening and closing of the furnace doors, so that in order to realize normal opening and closing of the furnace doors, enough movable space at the front end of the furnace doors of the electric arc furnaces must be guaranteed, and meanwhile, operators need to be collided when the furnace doors are opened and closed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric stove furnace gate lever apparatus to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an electric furnace door lever device is characterized by comprising

The furnace door is blocked and arranged at the inlet of the electric furnace body; a connecting rod is vertically arranged in the middle of the top end of the furnace door;

the lever structure comprises a vertical supporting rod, a balance plate and a telescopic column, wherein the vertical supporting rod is vertically arranged on the side of the furnace door and is opposite to the side of the furnace door; the balance plate is horizontally arranged above the vertical supporting rods; the connecting rods, the supporting vertical rods and the telescopic columns are sequentially hinged below the balance plate one by one along the rod body direction of the balance plate; the connecting rod and the balance plate are hinged in a rotating direction, the supporting vertical rod and the balance plate are hinged in a rotating direction, and the telescopic column and the balance plate are hinged in a rotating direction which is on the same plane; the telescopic columns are telescopic to drive the balance plate to rotate around the hinged position of the top end of the vertical supporting rod, so that the furnace door can be lifted up and down at the inlet of the electric furnace body to be opened and closed.

Furthermore, the telescopic column comprises a fixed rod and a movable rod, the bottom end of the movable rod is sleeved in the fixed rod, and the rod body of the movable rod is arranged in the fixed rod in a vertically telescopic manner; the top end of the movable rod is hinged with the balance plate.

Furthermore, the horizontal vertical distance between the telescopic column and the supporting vertical rod is smaller than the horizontal vertical distance between the connecting rod and the supporting vertical rod.

Furthermore, furnace door supporting frames are respectively arranged on two sides of the inlet of the electric furnace body, guide grooves are arranged on the opposite sides of the furnace door supporting frames, and the guide grooves are arranged in a vertical mode; the two side ends of the furnace door are correspondingly clamped in the guide grooves respectively.

Furthermore, the furnace door structure also comprises a sliding-assistant structure, wherein the sliding-assistant structure comprises a sliding block and a sliding roller, the two side ends of the furnace door are respectively fixedly provided with the sliding-assistant block through bolts, and the appearance of the sliding-assistant block is arranged corresponding to the shape of the guide groove body; the auxiliary sliding blocks are provided with a plurality of mounting grooves on the end surfaces of the side ends far away from the furnace door, and the mounting grooves are uniformly arranged one by one along the length direction of the auxiliary sliding blocks; the plurality of the sliding-assistant rollers are horizontally arranged in the mounting groove in a one-to-one correspondence manner, and the sliding-assistant rollers are circumferentially and rotatably arranged in the mounting groove along the axial direction of the sliding-assistant rollers; the roller surface of the sliding-assistant roller is arranged by protruding the groove surface of the mounting groove and is in contact with the end surface of the inner side of the guide groove.

Compared with the prior art, the beneficial effects of the utility model are that: the lifting of the furnace door is realized through the lever principle, so that the opening and closing of the furnace door are realized, the structure is simple and labor-saving, the space-saving effect is realized, and meanwhile, the collision of an operator during the opening process of the furnace door is avoided; meanwhile, the furnace door supporting frame is arranged to support the furnace door, the normal lifting of the furnace door is guaranteed, and the sliding assisting structure is arranged at the side end of the furnace door to reduce the friction force between the furnace door and the furnace door supporting frame, so that the effect of saving labor is further achieved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of fig. 1 of the present invention;

fig. 3 is an enlarged schematic structural diagram of a portion a of fig. 1 according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to the figure, the present invention provides a technical solution: an electric furnace door lever device is characterized by comprising

The furnace door 1 is arranged at the inlet of the electric furnace body 2 in a blocking way; a connecting rod 10 is vertically arranged in the middle of the top end of the furnace door 1;

the oven door comprises a lever structure 3, wherein the lever structure 3 comprises a vertical supporting rod 31, a balance plate 32 and a telescopic column 33, the vertical supporting rod 31 is vertically arranged on the side of the oven door 1, and the vertical supporting rod 31 is over against the side of the oven door 1; the balance plate 32 is horizontally arranged above the vertical support rods 31; the connecting rod 10, the supporting vertical rod 31 and the telescopic column 33 are sequentially hinged below the balance plate 32 one by one along the shaft direction of the balance plate 32; the connecting rod 10 and the balance plate 32 are hinged in the rotating direction, the supporting vertical rod 31 and the balance plate 32 are hinged in the rotating direction, and the telescopic column 33 and the balance plate 32 are hinged in the rotating direction and are arranged on the same plane; the telescopic column 33 is telescopic to drive the balance plate 32 to rotate around the hinged position of the top end of the vertical supporting rod 31, so that the furnace door 1 can be lifted up and down to be opened and closed at the inlet of the electric furnace body 2. The rotary opening and closing of the furnace door is converted into lifting opening and closing by the arrangement, and meanwhile, the lever principle is reasonably utilized, so that the structure is simple and labor-saving, the space at the inlet of the electric furnace body 2 is saved, and meanwhile, the situation that the furnace door 1 collides with an operator in the opening process is avoided.

The telescopic column 33 may be a hydraulic telescopic column; the telescopic column 33 comprises a fixed rod 331 and a movable rod 332, the bottom end of the movable rod 332 is sleeved in the fixed rod 331, and the rod body of the movable rod 332 is arranged in the fixed rod 331 in a vertically telescopic manner; the top end of the movable rod 332 is hinged with the balance plate 32; specifically, by retracting the movable rod 332, the movable rod 332 pulls the end of the balance plate 32 downward, and under the action of the lever principle, the other end of the balance plate 32 drives the oven door 1 to ascend and open; conversely, by extending the movable rod 332, the movable rod 332 pulls the end of the balance plate 32 upward, and under the action of the lever principle, the other end of the balance plate 32 drives the oven door 1 to descend and close.

The horizontal vertical distance between the telescopic column 33 and the supporting vertical rod 31 is smaller than the horizontal vertical distance between the connecting rod 10 and the supporting vertical rod 31, so that the movable rod 332 of the telescopic column 33 can realize the large lifting opening and closing of the oven door 1 with small telescopic length.

Two sides of an inlet of the electric furnace body 2 are respectively provided with a furnace door supporting frame 4, the opposite sides of the furnace door supporting frames 4 are provided with guide grooves 41, and the guide grooves 41 are arranged in a vertical mode; two side ends of the furnace door 1 are correspondingly clamped in the guide grooves 41 respectively.

The furnace door structure further comprises a sliding-assistant structure 5, wherein the sliding-assistant structure 5 comprises a sliding block 51 and a sliding roller 53, the two sides of the furnace door 1 are respectively fixedly provided with a sliding-assistant block 51 through bolts, and the appearance of the sliding-assistant block 51 corresponds to that of the guide groove 41; a plurality of mounting grooves 52 are formed in the end face of the side end of the slide-assisting block 51 far away from the furnace door 1, and the mounting grooves 52 are uniformly arranged along the length direction of the slide-assisting block 51 one by one; the plurality of the slide-assisting rollers 53 are horizontally arranged in the mounting groove 52 in a one-to-one correspondence manner, and the slide-assisting rollers 53 are circumferentially and rotatably arranged in the mounting groove 52 along the axial direction thereof; the roller surface of the sliding-assistant roller 53 protrudes out of the groove surface of the mounting groove 52 and is in contact with the innermost end surface of the guide groove 41, so that the sliding-assistant roller 53 is in rolling contact with the innermost end surface of the guide groove 41 in the lifting process of the furnace door 1, and further the friction force between the furnace door 1 and the furnace door support frame 4 further plays a role in saving labor.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An electric furnace door lever device is characterized by comprising

The furnace door (1) is arranged at the inlet of the electric furnace body (2) in a blocking manner; a connecting rod (10) is vertically arranged in the middle of the top end of the furnace door (1);

the oven door comprises a lever structure (3), wherein the lever structure (3) comprises a vertical supporting rod (31), a balance plate (32) and a telescopic column (33), the vertical supporting rod (31) is vertically arranged on the side of the oven door (1), and the vertical supporting rod (31) is over against the side of the oven door (1); the balance plate (32) is horizontally arranged above the vertical supporting rod (31); the connecting rod (10), the supporting vertical rod (31) and the telescopic column (33) are sequentially hinged below the balance plate (32) one by one along the rod body direction of the balance plate (32); the connecting rod (10) and the balance plate (32) are hinged in the rotating direction, the supporting vertical rod (31) and the balance plate (32) are hinged in the rotating direction, and the telescopic column (33) and the balance plate (32) are hinged in the rotating direction and are arranged on the same plane; the balance plate (32) is driven to rotate around the hinged position of the top end of the vertical supporting rod (31) through the stretching of the stretching column (33), and then the furnace door (1) is lifted up and down at the inlet of the electric furnace body (2) to be opened and closed.

2. The electric furnace door lever device according to claim 1, wherein: the telescopic column (33) comprises a fixed rod (331) and a movable rod (332), the bottom end of the movable rod (332) is sleeved in the fixed rod (331), and the rod body of the movable rod (332) is arranged in the fixed rod (331) in a vertically telescopic manner; the top end of the movable rod (332) is hinged with the balance plate (32).

3. The electric furnace door lever device according to claim 1, wherein: the horizontal vertical distance between the telescopic column (33) and the supporting vertical rod (31) is smaller than the horizontal vertical distance between the connecting rod (10) and the supporting vertical rod (31).

4. The electric furnace door lever device according to claim 1, wherein: two sides of an inlet of the electric furnace body (2) are respectively provided with a furnace door support frame (4), the opposite sides of the furnace door support frames (4) are provided with guide grooves (41), and the guide grooves (41) are arranged in a vertical mode; the two side ends of the furnace door (1) are correspondingly clamped in the guide grooves (41) respectively.

5. The electric furnace door lever device according to claim 4, wherein: the furnace door is characterized by further comprising a sliding assisting structure (5), wherein the sliding assisting structure (5) comprises sliding blocks (51) and sliding rollers (53), the sliding blocks (51) are fixedly arranged at two side ends of the furnace door (1) through bolts respectively, and the appearance of each sliding block (51) corresponds to the groove body of the guide groove (41); a plurality of mounting grooves (52) are formed in the end face of the side end, far away from the oven door (1), of the sliding block (51), and the mounting grooves (52) are uniformly arranged one by one along the length direction of the sliding block (51); the sliding rollers (53) are horizontally arranged in the mounting groove (52) in a one-to-one correspondence manner, and the sliding rollers (53) are circumferentially and rotatably arranged in the mounting groove (52) along the axial direction of the sliding rollers; the roller surface of the sliding roller (53) is arranged by protruding the groove surface of the mounting groove (52) and is in contact with the end surface of the inner side of the guide groove (41).