Automatic protection device for bottom of furnace mouth
Technical Field
The invention relates to the field of industrial furnaces, in particular to an automatic furnace mouth bottom protection device.
Background
Technological progress of industrial furnaces plays a very important role in industrial development, and the problem of sealing a furnace door and a furnace mouth of the industrial furnaces, particularly a high-temperature heating gas furnace, is always a difficult problem in the industry.
The bottom of the furnace mouth of the industrial furnace, especially the bottom of the furnace mouth at the discharge port is generally formed by pouring refractory pouring materials, the bottom of the furnace mouth is easy to wear and collide during feeding and discharging, the sealing surface of the bottom of the furnace mouth is damaged, once the furnace door and the furnace mouth are not tightly sealed, the phenomena of wind leakage and fire leakage occur, the sealing materials of the furnace door and the furnace mouth are burnt and damaged to lose efficacy, and great economic loss is caused.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an automatic furnace mouth bottom protection device.
In order to achieve the purpose, the automatic furnace mouth bottom protection device comprises a furnace mouth, wherein a furnace door main body is arranged at the upper side of the furnace mouth, the furnace door main body is correspondingly connected with a lifting mechanism, the lower side of the furnace mouth is provided with a furnace mouth bottom table, the outer side of the furnace mouth bottom table is fixedly connected with a guide rail, a skip main body is slidably arranged on the guide rail, the skip main body consists of a skip platform and a skip chassis, the upper surface of the skip platform is level with the upper surface of the furnace mouth bottom table, connecting rollers at the lower side of the skip chassis are correspondingly arranged on the guide rail, connecting rods are rotatably connected to the two sides of the skip chassis, and the other ends of the connecting rods are rotatably connected to the left side and the right side of the front surface of the furnace door main body.
As a further description of the above technical solution:
the upper surface four corners position of skip chassis all fixedly connected with lead screw, the upper end switching of lead screw has first nut and second nut, the plate body of skip platform corresponds the cartridge on the lead screw, and first nut and second nut correspond the crimping at skip platform's upper and lower surface.
As a further description of the above technical solution:
The four corners of the lower surface of the skip chassis are respectively connected with a first rotating shaft through wheel seats in a rotating mode, a shaft body of the first rotating shaft is fixedly connected with a bearing, a third check ring is arranged on the shaft body of the first rotating shaft corresponding to the side position of the bearing, the idler wheels are correspondingly sleeved on the bearing, and a second check ring is arranged between the idler wheels and the bearing.
As a further description of the above technical solution:
One end fixedly connected with second hinge of skip chassis is connected to the connecting rod, the second hinge corresponds the cover and is put on the shaft body of first pivot, the shaft body of first pivot corresponds the outside of second hinge and is provided with the spacer, the outside position of spacer is provided with the fourth retaining ring.
As a further description of the above technical solution:
The one end fixedly connected with first hinge of furnace gate main part is connected to the connecting rod, the side surface of furnace gate main part corresponds and is provided with the second pivot, fixedly connected with hinge mount in the second pivot, first hinge corresponds and connects on the hinge mount, the both sides of second pivot all are connected with first retaining ring.
As a further description of the above technical solution:
One side of the furnace mouth bottom table is correspondingly provided with a photoelectric travel switch, the outer side of the photoelectric travel switch is provided with a protective cover, and the lower surface of the skip car body is correspondingly provided with a travel adjusting bolt.
The invention has the following beneficial effects:
1. According to the invention, the skip car obtains horizontal reciprocating traction force through lifting power of the furnace door, the skip car and the furnace door realize position interlocking and movement synchronization through the left connecting rod and the right connecting rod, the furnace door is opened to finish automatic protection of the skip car on the bottom of the furnace mouth, and the reliable sealing time between the furnace door and the bottom of the furnace mouth is prolonged.
2. The material vehicle is divided into an upper part and a lower part, the height direction of the material vehicle platform is adjustable, and the height reduction of the upper plane of the bottom of the furnace mouth caused by abrasion of the bottom of the furnace mouth can be compensated.
Drawings
FIG. 1 is a front view of an automatic furnace mouth bottom protection device;
FIG. 2 is a side cross-sectional view of an automatic furnace door of the furnace mouth bottom protection device when opened;
fig. 3 is a side sectional view of an automatic furnace door protection device for the bottom of a furnace mouth when the furnace door is closed.
Legend description:
1. The device comprises a first rotating shaft, a wheel seat, a roller, a 4, a screw rod, a 5, a first nut, a 6, a second nut, a 7, a protective cover, a 8, a first retainer ring, a 9, a hinge seat, a 10, a second rotating shaft, a 11, a furnace door opening, a 12, a photoelectric travel switch, a 13, a skip platform, a 14, a travel adjusting bolt, a 15, a skip chassis, a 16, a bearing, a 17, a second retainer ring, a 18, a third retainer ring, a 19, a fourth retainer ring, a 20, a spacer, a 22, a furnace door bottom table, a 23, a furnace door main body, a 24, a first hinge, a 25, a connecting rod, a 26, a skip main body, a 27, a second hinge, a 28 and a guide rail.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are merely for convenience of description and to simplify the description, but rather to indicate or imply that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention, and that the terms "first," "second," "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, and that, unless otherwise explicitly stated or defined, the terms "mounted," "connected," or "connected" should be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected, as being either mechanically connected, as being either directly connected, as being indirectly connected through intermediate media, or as being in communication with the inside of two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, an embodiment of the present invention provides an automatic furnace mouth bottom protection device, including a furnace mouth 11, providing a furnace mouth structure, an upper side position of the furnace mouth 11 is provided with a furnace mouth main body 23, for the furnace mouth structure, the furnace mouth main body 23 is correspondingly connected with a lifting mechanism, so as to ensure that the furnace mouth can lift up and down, a lower side position of the furnace mouth 11 is provided with a furnace mouth bottom table 22, for the furnace mouth bottom main body structure, an outer side of the furnace mouth table 22 is fixedly connected with a guide rail 28, a guide of a skip is provided, a skip main body 26 is slidably arranged on the guide rail 28, a workpiece conveying vehicle body is provided, the skip main body 26 is composed of a skip platform 13 and a skip chassis 15 together, a precondition is provided for adjusting the skip platform 13, an upper surface of the skip platform 13 is leveled with an upper surface of the furnace mouth table 22, a plane connection is ensured, a lower side connecting roller 3 of the skip chassis 15 is correspondingly arranged on the guide rail 28, both sides of the skip chassis 15 are rotatably connected with a connecting rod 25, and the other end of the connecting rod 25 is rotatably connected to left and right sides of the front surface of the furnace mouth main body 23, and reciprocating movement of the skip main body 26 is realized through lifting of the skip main body 23.
The four corners of the upper surface of the skip chassis 15 are fixedly connected with a screw rod 4, the upper end of the screw rod 4 is connected with a first nut 5 and a second nut 6 in a switching way, the plate body of the skip platform 13 is correspondingly inserted on the screw rod 4, the first nut 5 and the second nut 6 are correspondingly pressed on the upper surface and the lower surface of the skip platform 13, the height of the skip platform 13 can be adjusted through the position adjustment of the first nut 5 and the second nut 6, the four corners of the lower surface of the skip chassis 15 are respectively and rotatably connected with a first rotating shaft 1 through a wheel seat 2 to provide a rotating shaft of a roller 3, the shaft body of the first rotating shaft 1 is fixedly connected with a bearing 16 to reduce rotating friction force, the side position of the shaft body of the first rotating shaft 1 corresponding to the bearing 16 is provided with a third retaining ring 18, the roller 3 is correspondingly sleeved on the bearing 16, a second retaining ring 17 is arranged between the roller 3 and the bearing 16 to realize the position fixing of the bearing 16, the connecting rod 25 is fixedly connected with the second hinge 27 at one end of the skip chassis 15 to provide corresponding rotation connection, the second hinge 27 is correspondingly sleeved on the shaft body of the first rotating shaft 1, the spacer 20 is arranged at the outer side of the shaft body of the first rotating shaft 1 corresponding to the second hinge 27, the fourth check ring 19 is arranged at the outer side of the spacer 20, the limit of the second hinge 27 is realized through the effect of the spacer 20, the limit of the spacer 20 is realized through the effect of the first check ring 19, the connecting rod 25 is fixedly connected with the first hinge 24 at one end of the furnace door main body 23 to provide corresponding rotation connection, the side surface of the furnace door main body 23 is correspondingly provided with the second rotating shaft 10 to provide rotation connection shaft, the hinge seat 9 is fixedly connected on the second rotating shaft 10, the first hinge 24 is correspondingly connected on the hinge seat 9 to realize corresponding rotation connection, the two sides of the second rotating shaft 10 are respectively connected with the first check ring 8, the limit on the two sides is realized, the stability of the transfer position is ensured, one side of the furnace mouth bottom table 22 is correspondingly provided with a photoelectric travel switch 12, the outer side of the photoelectric travel switch 12 is provided with a protective cover 7, the lower surface of the skip car main body 26 is correspondingly provided with a travel adjusting bolt 14, and the automatic control operation is achieved through the cooperation of the travel adjusting bolt 14 and the photoelectric travel switch 12.
Working principle: the device is of a connecting rod 25 double-slide block structure, the lifting power and the stroke of a slide block A (a furnace door main body 23) are utilized to finish the horizontal reciprocating motion of a slide block B (a skip main body 26), the automatic protection of a furnace mouth bottom table 22 is realized, when the furnace door main body 23 ascends from a lower limit position, the gap between a material main body trolley 26 and a furnace mouth 11 is gradually reduced by pulling a first hinge 24, a connecting rod 25 and a second hinge 27 of the furnace door main body 23 through a first hinge 24, when a stroke adjusting bolt 14 on the skip main body 26 is close to a photoelectric travel switch 12, the skip main body 26 is close to the furnace mouth bottom table 22, the furnace door main body 23 is in a maximum opening state, the upper plane of the skip platform 13 is level with the upper plane of the furnace mouth bottom table 22, a workpiece reaching the initial temperature safely slides to the upper plane of the skip platform 13 through the upper plane of the furnace mouth bottom table 22 according to the discharging beat of the workpiece, continuous discharging or intermittent discharging can be realized, the furnace door main body 23 is opened once during continuous discharging, the skip main body 26 reciprocates once, the workpiece is discharged for a plurality of times, the furnace door main body 23 is opened once during intermittent discharging, the skip main body 26 reciprocates once, the workpiece is discharged once, the workpiece can be taken away from the skip main body 26 and then the furnace door main body 23 is closed, the workpiece can also be taken away from the skip main body 26 after the furnace door main body 23 is closed, the gap between the skip main body 26 and the furnace door 11 gradually increases when the furnace door main body 23 descends until the furnace door 11 and the furnace door main body 23 are in a sealing state, the power for reciprocating the skip main body 26 along the horizontal guide rail 28 comes from the furnace door main body 23, the power for the skip main body 26 gradually approaches the furnace door 11 comes from the lifting tension of the furnace door main body 23, the power of the skip body 26 gradually moving away from the door opening 11 comes from the gravity of the door body 23.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present invention.