Automatic eccentric locking device of electric furnace tapping hole opening and closing mechanism and electric furnace

Abstract

The utility model relates to an automatic eccentric locking device of an electric furnace tapping hole opening and closing mechanism and an electric furnace, and belongs to the field of metallurgical equipment. Comprising a fixedly arranged mounting seat, a driving cylinder is arranged on the mounting seat, one end of the driving cylinder is fixedly arranged on the mounting seat, the other end of the driving cylinder is connected to a rotating shaft, and the rotating shaft is arranged on a fixedly arranged support through a connecting pin and pivots around the connecting pin; the end, away from the mounting base, of the rotating shaft is connected to a fixed stop block through an eccentric locking block, and the driving cylinder drives the rotating shaft to pivot and push and pull the eccentric locking block and the fixed stop block. The utility model can solve the problems of large misoperation probability, poor manual operation environment and influence on the automatic operation of electric furnace smelting tapping when the opening and closing mechanism of the tapping hole of the electric furnace is manually locked.

Description

Technical Field

[0001] The utility model belongs to the field of metallurgical equipment and relates to an automatic eccentric locking device of an opening and closing mechanism of a steel outlet of an electric furnace and an electric furnace. Background Art

[0002] Electric furnace equipment is the core production process and equipment for short-process steel smelting. The tapping opening and closing mechanism of the electric furnace is used to open and close the tapping of the electric furnace body, and is an important production operation equipment in the electric furnace smelting process. The tapping opening and closing mechanism is affected by high temperature or leakage in the hydraulic cylinder. During production, the tapping opening and closing mechanism may open abnormally, causing serious production safety accidents. Therefore, a locking device is required to lock the tapping opening and closing mechanism to ensure production safety. When manually locked, the surrounding slag splashes and the ambient temperature is high, which is not conducive to personal safety and is not convenient for the automatic smelting operation of the electric furnace. Therefore, it is necessary to automatically lock the tapping opening and closing mechanism.

[0003] The traditional tapping opening and closing mechanism is locked manually, which consists of a locking support, a locking pin, and a locking plate. After the tapping opening and closing mechanism is closed, the locking pin is manually inserted into the locking support and the hole of the locking plate on the transmission shaft of the opening and closing mechanism. Figure 5 .

[0004] The actual use of manual locking of the opening and closing mechanism has the following problems. First, manual locking cannot achieve automatic control and automated smelting cannot be achieved. Second, when manual locking is performed, the ambient temperature is high, which affects the safety of the operator. Then, when the opening and closing mechanism of the steel outlet needs to be opened, if the operator forgets to pull out the locking pin, the locking support and the locking plate will be stuck, affecting the production smelting rhythm and the steel tapping temperature, which increases the production cost in disguised form. Finally, if the opening and closing mechanism of the steel outlet and the manual locking are opened in the wrong order, the opening and closing mechanism of the steel outlet and the locking device will be stuck, and the automation requirements of electric furnace smelting cannot be achieved. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an automatic eccentric locking device for the opening and closing mechanism of the steel-tipping port of an electric furnace and an electric furnace, so as to solve the problem that when the opening and closing mechanism of the steel-tipping port of the electric furnace is manually locked, the probability of misoperation of the opening and closing mechanism is high, the manual operation environment is poor, and the automatic operation of electric furnace smelting and steel tapping is affected.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] An automatic eccentric locking device for an electric furnace steel outlet opening and closing mechanism comprises a fixed mounting seat, a driving cylinder is arranged on the mounting seat, one end of the driving cylinder is fixedly arranged on the mounting seat, and the other end is connected to a rotating shaft, the rotating shaft is mounted on a fixed support via a connecting pin and pivots around the connecting pin; one end of the rotating shaft away from the mounting seat is connected to a fixed stopper via an eccentric locking block, and the driving cylinder drives the rotating shaft to pivot and push and pull the eccentric locking block and the fixed stopper.

[0008] Optionally, the device is applied to an opening and closing mechanism of an electric furnace steel outlet, the opening and closing mechanism of the electric furnace steel outlet is provided with a rotating shaft, and the shape of the fixed stopper matches the rotating shaft.

[0009] Optionally, a positioning baffle that cooperates with the fixed baffle is provided on the rotating shaft.

[0010] Optionally, a position sensor for determining a locked or unlocked position is provided on the driving cylinder.

[0011] Optionally, the eccentric locking block is connected to the rotating shaft via a rotating sleeve.

[0012] Optionally, a self-lubricating graphite sleeve is provided between the rotating sleeve and the rotating shaft.

[0013] Optionally, the mounting seat is detachably connected to the driving cylinder; the support is detachably connected to the rotating shaft.

[0014] Optionally, the mounting seat and the support are arranged on the electric furnace body.

[0015] Optionally, the mounting seat and the support are detachably arranged on the electric furnace body.

[0016] Optionally, the driving cylinder is an oil cylinder or a pneumatic cylinder.

[0017] Optionally, the oil cylinder or the air cylinder is cooled by water.

[0018] An electric furnace comprises an electric furnace body, on which an electric furnace tapping port opening and closing mechanism is arranged, and on which an automatic eccentric locking device of the electric furnace tapping port opening and closing mechanism is arranged, wherein the electric furnace tapping port opening and closing mechanism and the automatic eccentric locking device of the electric furnace tapping port opening and closing mechanism act independently.

[0019] The beneficial effects of the utility model are:

[0020] The utility model can realize the automatic eccentric locking device for the opening and closing mechanism of the steel tapping port of the electric furnace; the driving cylinder with a position sensor drives the rotating shaft to drive the installation position and adjustment plan of the eccentric locking block, so that the locking of the steel tapping port opening and closing mechanism has great accuracy and stability, and the closing position of the steel tapping port opening and closing mechanism is corrected. The technical status quo of the electric furnace steel tapping port requiring manual on-site locking is improved, and the working environment is improved. This technology saves manpower for electric furnace operation and creates conditions for the automatic smelting process of the electric furnace; the equipment is easy to use, the maintenance and disassembly workload is small, and the economic benefits are indirectly increased.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0023] Figure 1 A main view of an implementation form;

[0024] Figure 2 A side view of an implementation form;

[0025] Figure 3 A top view of an implementation form;

[0026] Figure 4 It is a local detail drawing of the rotating shaft;

[0027] Figure 5 It is a schematic diagram of the prior art.

[0028] Figure numerals: 1 driving cylinder, 1a first support, 1b mounting seat, 1c first connecting pin, 1d connecting joint, 2 rotating shaft, 2a second support, 2b second connecting pin, 2c self-lubricating graphite sleeve, 3 eccentric locking block, 4 fixed stopper, 5 position sensor, 6 cooling water hose, 7 electric furnace body, 8 rotating shaft of steel outlet opening and closing mechanism, 9 steel outlet opening and closing cylinder. DETAILED DESCRIPTION

[0029] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0030] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0031] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] See also Figure 1 to Figure 4 , this embodiment includes: a driving cylinder 1, a rotating shaft 2, a first support 2a, an eccentric locking block 3, a fixed stopper 4, a position sensor 5, etc. The driving cylinder 1, the eccentric locking block 3, the rotating shaft 2, and the first support 2a constitute a locking structure. The automatic locking device adopts an eccentric locking structure; the opening and closing directions of the eccentric locking block 3 and the driving cylinder 1 are adjusted according to the opening and closing directions of the opening and closing mechanism of the electric furnace outlet and the space on the electric furnace body 7; a self-lubricating graphite sleeve 2c is used between the eccentric locking block 3 and the rotating shaft 2; the rotating shaft 2 is arranged on the second support 2a through a connecting bolt and a washer matching the connecting bolt; the driving cylinder 1 is arranged on the mounting seat 1b through a connecting bolt and a washer matching the connecting bolt; the first connecting pin 1c of the driving cylinder 1 is installed, and the connecting joint 1d of the driving cylinder 1 is connected to the second connecting pin 2b on the rotating shaft 2.

[0033] The fixed stopper 4 of the automatic eccentric locking device is welded to the rotating shaft 8 of the electric furnace steel outlet opening and closing mechanism by welding; the second fixed support 2a of the rotating shaft 2 and the first fixed support 1a of the mounting seat 1b of the driving cylinder 1 are connected to the electric furnace body 7 by welding; the driving cylinder 1 is cooled by water to cool and protect the driving cylinder 1 and the position sensor 5.

[0034] The utility model relates to an automatic eccentric locking device for an opening and closing mechanism of a steel outlet of an electric furnace. A driving cylinder 1 pushes an eccentric locking block 3 through a rotating shaft 2 to form a locking device with a fixed stopper 4; it also includes a position sensor 5 connected to the driving cylinder 1, the driving cylinder is an oil cylinder or an air cylinder, which is cooled by water and is connected to a cooling water hose 6; and a driving cylinder mounting seat 1b for fixing the driving cylinder 1, a second support 2a for fixing the rotating shaft 2, and a connecting pin 2b.

[0035] The driving cylinder 1 of the utility model is connected to the first support 1a through a connecting pin 1c; the first support 1a is connected to the driving cylinder mounting seat 1b through a connecting bolt; the driving cylinder connecting joint 1d is connected to the eccentric locking block 3 through a second connecting pin 2b; the eccentric locking block 3 is connected to the rotating shaft 2 through a connecting bolt; the rotating shaft 2 is connected to the second support 2a through a connecting bolt; the above connections are independent of each other and can be disassembled separately.

[0036] The driving cylinder 1 of the utility model pushes and pulls the eccentric locking block 3 through the rotating shaft 2, and forms a locking device with the fixed stopper 4 to realize the unlocking and locking of the eccentric locking block 3; the fixed stopper 4 is fixedly installed on the rotating shaft 8 of the opening and closing mechanism of the steel outlet of the electric furnace, and is welded according to the closing position of the opening and closing mechanism of the steel outlet and the locking position of the eccentric locking block 3.

[0037] When the opening and closing mechanism of the steel outlet of the electric furnace is closed, the opening and closing mechanism of the steel outlet may not be able to close properly due to slag sticking to the steel outlet. The eccentric locking block 3 of the utility model adjusts and corrects the opening and closing mechanism of the steel outlet through the eccentric structure and the fixed stopper 4 fixedly welded on the rotating shaft 8 of the opening and closing mechanism of the steel outlet.

[0038] The eccentric locking block 3 adopts an eccentric structure to lock the mechanism. When the driving cylinder 1 fails to operate due to an abnormal fault, the second connecting pin 2b is pulled out and the eccentric locking block 3 is knocked to manually unlock the steel outlet opening and closing mechanism.

[0039] A position sensor 5 is built into the driving cylinder 1 to determine the position of the locking device. The driving cylinder 1 is cooled by water to cool and protect the position sensor 5 .

[0040] and Figure 5Compared with the prior art shown in the figure, the structure of the utility model is flexible in on-site installation and adjustment, has a firm and reliable connection, is easy to disassemble and maintain, can reduce the workload caused by manual locking of the opening and closing mechanism of the electric furnace outlet, avoids manual operation in a high-temperature splashing environment, saves labor costs, creates conditions for the automatic smelting process of the electric furnace, and indirectly increases economic benefits.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. An automatic eccentric locking device for an opening and closing mechanism of an electric furnace tapping port, characterized in that: It comprises a fixed mounting seat, on which a driving cylinder is arranged, one end of which is fixedly arranged on the mounting seat, and the other end of which is connected to a rotating shaft, and the rotating shaft is mounted on a fixed support via a connecting pin and pivots around the connecting pin; One end of the rotating shaft away from the mounting seat is connected to a fixed stopper via an eccentric locking block, and the driving cylinder drives the rotating shaft to pivot and push and pull the eccentric locking block and the fixed stopper.

2. The automatic eccentric locking device of the electric furnace tapping port opening and closing mechanism according to claim 1, characterized in that: The device is applied to an opening and closing mechanism of an electric furnace steel outlet. The opening and closing mechanism of the electric furnace steel outlet is provided with a rotating shaft, and the shape of the fixed stopper matches the rotating shaft.

3. The automatic eccentric locking device of the electric furnace tapping port opening and closing mechanism according to claim 2 is characterized in that: The rotating shaft is provided with a positioning baffle matched with the fixed baffle.

4. The automatic eccentric locking device of the electric furnace tapping port opening and closing mechanism according to claim 1, characterized in that: The driving cylinder is provided with a position sensor for determining its locking or unlocking position.

5. The automatic eccentric locking device of the electric furnace tapping port opening and closing mechanism according to claim 1, characterized in that: The eccentric locking block is connected to the rotating shaft via a rotary sleeve.

6. The automatic eccentric locking device of the electric furnace tapping port opening and closing mechanism according to claim 5, characterized in that: A self-lubricating graphite sleeve is arranged between the rotary sleeve and the rotating shaft.

7. The automatic eccentric locking device of the opening and closing mechanism of the electric furnace tapping port according to claim 1 is characterized in that: The mounting seat is detachably connected to the driving cylinder; the support is detachably connected to the rotating shaft.

8. The automatic eccentric locking device of the opening and closing mechanism of the electric furnace tapping port according to claim 1 is characterized in that: The mounting seat and the support are arranged on the electric furnace body.

9. The automatic eccentric locking device of the opening and closing mechanism of the electric furnace tapping port according to claim 1, characterized in that: The mounting seat and the support are detachably arranged on the electric furnace body.

10. An electric furnace, comprising an electric furnace body, wherein an electric furnace tapping port opening and closing mechanism is arranged on the electric furnace body, characterized in that: The electric furnace body is provided with an automatic eccentric locking device of the electric furnace steel outlet opening and closing mechanism according to any one of claims 1 to 9, and the electric furnace steel outlet opening and closing mechanism and the automatic eccentric locking device of the electric furnace steel outlet opening and closing mechanism operate independently.

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