CN215447360U

CN215447360U - Automatic screwing device for furnace cover of pit furnace

Info

Publication number: CN215447360U
Application number: CN202121847275.0U
Authority: CN
Inventors: 吴立平
Original assignee: Nanjing Suishan Xunda Furnace Technology Co ltd
Current assignee: Nanjing Suishan Xunda Furnace Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-01-07
Anticipated expiration: 2031-08-09

Abstract

The utility model relates to an automatic screwing device for a furnace cover of a pit furnace, which comprises a foundation and a furnace opening, wherein the top of the furnace opening is movably provided with the furnace cover, and a screwing assembly is movably arranged in the furnace cover; the subassembly of screwing includes motor, driving gear, ring gear, driven gear and spacing bolt, and the equal fixed mounting in both sides has the motor around the top of bell, and fixed mounting has the driving gear on the output shaft of motor, and the inside of bell rotates and is connected with the ring gear, and the outside meshing of ring gear has driven gear, and driven gear's inside fixed mounting has spacing bolt, the pit has been seted up to the inside of ground, and the bottom fixed mounting of fire door has the furnace body that is located pit inside. According to the automatic screwing device for the furnace cover of the pit furnace, after the furnace opening and the furnace cover are butted, the starting motor drives the driving gear to rotate, so that the gear ring is driven to rotate, the driven gear is further driven to rotate, the limiting bolt synchronously rotates with the driven gear, and the bolt is screwed into the threaded hole of the furnace opening after sliding downwards.

Description

Automatic screwing device for furnace cover of pit furnace

Technical Field

The utility model relates to the technical field of pit furnaces, in particular to an automatic screwing device for a furnace cover of a pit furnace.

Background

The pit furnace is a periodic operation furnace, is suitable for heat treatment of rod and long shaft parts, and has a structure that a furnace body is a cylindrical deep well, and workpieces are vertically loaded into the furnace by a special crane for heating.

The existing pit furnace is very widely applied and has the advantage of high heating efficiency, but the existing partial pit furnace is thick, heavy and wide in design for ensuring the sealing furnace cover, the furnace cover is generally closed in a manual screwing mode, the labor is wasted, the operation is complex, a large amount of manpower resources are wasted, and the pit furnace cover is inconvenient to use, so that the automatic screwing device for the pit furnace cover is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an automatic screwing device for a furnace cover of a pit furnace, which has the advantage of convenience in screwing the furnace cover and solves the problems that the design of a thick and wide furnace cover for ensuring the sealing performance of the existing part of pit furnaces is difficult, complicated to operate, wastes a large amount of human resources and is inconvenient to use because the furnace cover is generally closed in a manual screwing mode.

In order to achieve the purpose, the utility model provides the following technical scheme: an automatic screwing device for a furnace cover of a pit furnace comprises a foundation and a furnace opening, wherein the top of the furnace opening is movably provided with the furnace cover, and a screwing assembly is movably arranged in the furnace cover;

the screwing assembly comprises a motor, a driving gear, a toothed ring, a driven gear and a limiting bolt, the motors are fixedly mounted on the front side and the rear side of the top of the furnace cover, the driving gear is fixedly mounted on an output shaft of the motor, the furnace cover is connected with the toothed ring in a rotating mode, the driven gear is meshed with the outer portion of the toothed ring, and the limiting bolt is fixedly mounted inside the driven gear.

Furthermore, a pit is formed in the foundation, a furnace body located inside the pit is fixedly mounted at the bottom of the furnace opening, a connecting frame is fixedly mounted at the center of the top circle of the furnace cover, and the other end of the connecting frame is fixedly connected with the top of the foundation.

Furthermore, a movable cavity corresponding to the driving gear, the gear ring, the driven gear and the limiting bolt is formed in the furnace cover, an output shaft of the motor penetrates through the top of the furnace cover and extends into the movable cavity, and the outer portion of the output shaft of the motor is fixedly connected with the inner portion of the driving gear.

Furthermore, annular movable grooves corresponding to the gear rings are formed in the upper side and the lower side of the inner part of the furnace cover, the annular movable grooves are communicated with the movable cavity into a whole, and the gear rings are rotatably connected with the annular movable grooves.

Further, the quantity of stop bolt is greater than twenty, and is annular equidistance distribution around the outer loop of ring gear on the bell, and the bottom of stop bolt runs through the bell and extends to the inside of fire door, sets up the screw hole with stop bolt threaded connection on the fire door, and the top of stop bolt runs through and extends to the top of bell and rotates with the bell and be connected.

Furthermore, the ring gear is an annular double-faced rack, the driven gears and the limit bolts are equal in number and respectively correspond to one another one by one, the inner ring of the ring gear is meshed with the outer portion of the driving gear, and the outer ring of the ring gear is meshed with the outer portion of the driven gear.

Further, the limiting bolt is composed of a rotating shaft and a bolt, a rectangular sliding cavity corresponding to the bolt is formed in the bottom of the rotating shaft, the bolt is T-shaped, a rectangular limiting block is arranged at the top of the bolt, the outside of the rectangular limiting block is connected with the rectangular sliding cavity in a sliding mode, and the bottom of the bolt extends to the outside of the rectangular sliding cavity.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this automatic screwing device of pit furnace bell, movable chamber has been seted up on through the bell, the bell is used for supporting the subassembly of screwing, it is inseparable to be convenient for more laborsaving to screw the subassembly with fire door and bell connection, the motor is used for driving the driving gear and rotates, the ring gear is the two-sided rack of annular, the driving gear meshes with the inner ring of ring gear mutually, the quantity of motor and driving gear is two, it rotates to be convenient for better drive ring gear, driven gear meshes with the outer loop of ring gear mutually, it rotates to be convenient for the ring gear to drive driven gear after rotating, the quantity of stop cock is greater than twenty and around ring gear evenly distributed, driven gear and stop cock one-to-one, set up the screw hole corresponding with the stop cock on the fire door, driven gear is used for driving the stop cock and rotates, the bolt of stop cock slides downwards and screws with the screw hole.

2. According to the automatic screwing device for the furnace cover of the pit furnace, after the furnace opening and the furnace cover are butted, the starting motor drives the driving gear to rotate, so that the gear ring is driven to rotate, the driven gear is further driven to rotate, the limiting bolt synchronously rotates with the driven gear, and the bolt is screwed into the threaded hole of the furnace opening after sliding downwards.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic top cross-sectional view of the present invention;

FIG. 4 is a cross-sectional view of the stop bolt of the present invention;

fig. 5 is a bottom sectional view of the stop pin of the present invention.

In the figure: the furnace comprises a foundation 1, a furnace opening 2, a furnace cover 3, a screwing assembly 4, a motor 401, a driving gear 402, a toothed ring 403, a driven gear 404 and a limit bolt 405.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an automatic screwing device for a furnace cover of a pit furnace comprises a foundation 1 and a furnace opening 2, wherein the top of the furnace opening 2 is movably provided with the furnace cover 3, a screwing component 4 is movably arranged inside the furnace cover 3, a movable cavity is formed in the furnace cover 3, the furnace cover 3 is used for supporting the screwing component 4, and the screwing component 4 is used for connecting the furnace opening 2 and the furnace cover 3 tightly in a labor-saving manner;

referring to fig. 1-5, the screwing assembly 4 includes a motor 401, a driving gear 402, a toothed ring 403, a driven gear 404 and a limit bolt 405, the motor 401 is fixedly installed on both the front and rear sides of the top of the furnace cover 3, the driving gear 402 is fixedly installed on an output shaft of the motor 401, the motor 401 is used for driving the driving gear 402 to rotate, the toothed ring 403 is rotatably connected inside the furnace cover 3, the toothed ring 403 is an annular double-sided rack, the driving gear 402 is meshed with an inner ring of the toothed ring 403, the number of the motor 401 and the driving gear 402 is two, which is convenient for driving the toothed ring 403 to rotate better, the driven gear 404 is meshed outside the toothed ring 403, the driven gear 404 is meshed with an outer ring of the toothed ring 303, which is convenient for driving the driven gear 404 to rotate after the toothed ring rotates, the limit bolt 405 is fixedly installed inside the driven gear 404, the number of the limit bolts 405 is more than two 403 and is uniformly distributed around the toothed ring 403, driven gear 404 and stop cock 405 one-to-one, seted up on the fire door 2 with the corresponding screw hole of stop cock 405, driven gear 404 is used for driving stop cock 405 and rotates, stop cock 405's bolt slides down and screws with the screw hole, and, after butt joint fire door 2 and bell 3, starter motor 401 drives driving gear 402 and rotates, and then drives ring gear 403 and rotates, further drives driven gear 404 and rotates, stop cock 405 synchronous driven gear 404's rotation, make the bolt screw in the screw hole of fire door 2 after sliding down.

When in implementation, the method comprises the following steps:

1) after butt joint of the furnace mouth 2 and the furnace cover 3, a starting motor 401 drives a driving gear 402 to rotate;

2) thereby driving the gear ring 403 to rotate and further driving the driven gear 404 to rotate;

3) the stop bolt 405 synchronizes the rotation of the driven gear 404, so that the bolt slides downwards and then is screwed into the threaded hole of the furnace opening 2.

In summary, the automatic screwing device for the furnace cover of the pit furnace is provided with the movable cavity through the furnace cover 3, the furnace cover 3 is used for supporting the screwing component 4, the screwing component 4 is convenient for connecting the furnace opening 2 and the furnace cover 3 tightly in a labor-saving manner, the motor 401 is used for driving the driving gear 402 to rotate, the toothed ring 403 is an annular double-sided rack, the driving gear 402 is meshed with an inner ring of the toothed ring 403, the number of the motor 401 and the number of the driving gear 402 are two, the motor 401 and the driving gear 402 are convenient for driving the toothed ring 403 to rotate better, the driven gear 404 is meshed with an outer ring of the toothed ring 303, the driven gear 404 is convenient for driving the driven gear 404 to rotate after the toothed ring 403 rotates, the number of the limiting bolts 405 is larger than twenty, the limiting bolts are uniformly distributed around the toothed ring 403, the driven gears 404 and the limiting bolts 405 are in one-to-one correspondence, the furnace opening 2 is provided with threaded holes corresponding to the limiting bolts 405, and the limiting bolts 405 are screwed downwards and are arranged with the threaded holes.

And, after butt joint fire door 2 and bell 3, starter motor 401 drives driving gear 402 and rotates, and then drives ring gear 403 and rotates, further drive driven gear 404 and rotate, stop bolt 405 is synchronous driven gear 404's rotation, screw in the screw hole of fire door 2 after making the bolt slide down, partial current pit furnace has been solved, for guaranteeing leakproofness bell 3 design thickness and width, generally adopt the form of artifical screwing to close bell 3, hard and complex operation, waste a large amount of manpower resources, the not convenient to use's problem.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic device of screwing of pit furnace bell, includes ground (1) and fire door (2), its characterized in that: the top of the furnace mouth (2) is movably provided with a furnace cover (3), and the inside of the furnace cover (3) is movably provided with a screwing component (4);

the screwing assembly (4) comprises a motor (401), a driving gear (402), a toothed ring (403), a driven gear (404) and a limiting bolt (405), the motor (401) is fixedly mounted on the front side and the rear side of the top of the furnace cover (3), the driving gear (402) is fixedly mounted on an output shaft of the motor (401), the toothed ring (403) is connected to the inner rotation of the furnace cover (3), the driven gear (404) is meshed with the outer portion of the toothed ring (403), and the limiting bolt (405) is fixedly mounted on the inner portion of the driven gear (404).

2. The automatic screwing device for the furnace cover of the pit furnace as claimed in claim 1, wherein: the pit has been seted up to the inside of ground (1), and the bottom fixed mounting of fire door (2) has the furnace body that is located the pit inside, and the top centre of a circle department fixed mounting of bell (3) has the link, the other end of link and the top fixed connection of ground (1).

3. The automatic screwing device for the furnace cover of the pit furnace as claimed in claim 1, wherein: the furnace cover (3) is internally provided with a movable cavity corresponding to the driving gear (402), the toothed ring (403), the driven gear (404) and the limiting bolt (405), an output shaft of the motor (401) penetrates through the top of the furnace cover (3) and extends into the movable cavity, and the outside of the output shaft of the motor (401) is fixedly connected with the inside of the driving gear (402).

4. The automatic screwing device for the furnace cover of the pit furnace as claimed in claim 3, wherein: annular movable grooves corresponding to the toothed rings (403) are formed in the upper side and the lower side of the interior of the furnace cover (3), the annular movable grooves are communicated with the movable cavity into a whole, and the toothed rings (403) are rotatably connected with the annular movable grooves.

5. The automatic screwing device for the furnace cover of the pit furnace as claimed in claim 1, wherein: the quantity of stop cock (405) is greater than twenty, and is annular equidistance distribution around the outer loop of ring gear (403) on bell (3), and the bottom of stop cock (405) runs through bell (3) and extends to the inside of fire door (2), offers the screw hole with stop cock (405) threaded connection on fire door (2), and the top of stop cock (405) runs through and extends to the top of bell (3) and rotates with bell (3) and be connected.

6. The automatic screwing device for the furnace cover of the pit furnace as claimed in claim 1, wherein: the gear ring (403) is an annular double-sided rack, the driven gears (404) and the limit bolts (405) are equal in number and respectively correspond to each other one by one, the inner ring of the gear ring (403) is meshed with the outer portion of the driving gear (402), and the outer ring of the gear ring (403) is meshed with the outer portion of the driven gear (404).

7. The automatic screwing device for the furnace cover of the pit furnace as claimed in claim 1, wherein: spacing bolt (405) comprises pivot and bolt, and the smooth chamber of rectangle corresponding with the bolt is seted up to the bottom of pivot, and the bolt is T shape, and the top of bolt is provided with the rectangle stopper, and the outside and the smooth chamber sliding connection of rectangle stopper, the bottom of bolt extend to the outside in the smooth chamber of rectangle.