Extended pedal structure for medium-frequency induction furnace

Abstract

The utility model provides an extension pedal structure for a medium-frequency induction furnace, which comprises a pedal plate, an extension plate and a driving mechanism, the pedal plate is laid on the top of a furnace body of the medium-frequency induction furnace, one side of the pedal plate is provided with an accommodating cavity, the driving mechanism is arranged in the accommodating cavity, and the driving mechanism is used for driving the extension plate to extend or retract. And the length of the pedal plate can be adjusted. When the extension plate extends out, the length of the pedal plate is increased, the extension plate can be used for an operator to stand, the standing space of the operator is enlarged, the operator can stand on the pedal plate and can stand on the extension plate, and therefore it can be guaranteed that the space for the operator to repair the furnace nozzle on the pedal plate is enough; when the extension plate does not need to be used, the extension plate is driven by the driving mechanism to be retracted, and interference between the extension plate and a furnace front structural part, a ladle and the like when the furnace body of the medium-frequency induction furnace topples is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medium frequency induction furnaces, in particular to an extended pedal structure for medium frequency induction furnaces. Background Art

[0002] The medium frequency induction furnace is composed of the furnace body, coil, relay and other main parts. The furnace body includes the furnace shell, foot pedal, furnace nozzle (containing refractory cement), etc. After the metal is dissolved and the dissolved metal solution is poured out, the furnace nozzle will be washed and damaged to a certain extent, so the furnace nozzle needs to be repaired regularly. When repairing the furnace nozzle, the operator needs to stand on the foot pedal to operate. However, in order to ensure that the furnace body does not interfere with the front structure of the furnace, the iron ladle, etc. during the tilting process, the size of the foot pedal cannot be too large, thereby limiting the repair space of the furnace nozzle, resulting in a small operating space for the operator on the foot pedal and inconvenient operation. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model proposes an extended pedal structure for a medium frequency induction furnace, which can ensure that the operator has enough space on the pedal to repair the furnace nozzle without interfering with the furnace front structural parts, molten iron ladle, etc.

[0004] The technical solution of the utility model is achieved in this way:

[0005] An extended pedal structure for a medium frequency induction furnace comprises a pedal, an extension plate and a driving mechanism. The pedal is laid on the top of a furnace body of the medium frequency induction furnace. A receiving cavity is provided on one side of the pedal. The driving mechanism is arranged in the receiving cavity. The driving mechanism is used to drive the extension plate to extend or retract so as to adjust the length of the pedal.

[0006] Preferably, the driving mechanism comprises a hydraulic cylinder, a piston rod of the hydraulic cylinder is connected to the extension plate.

[0007] Preferably, the hydraulic cylinder is horizontally arranged in the accommodating cavity, and the extension plate is slidably arranged in the accommodating cavity so that the extension plate can be extended or retracted into the accommodating cavity.

[0008] Preferably, a guide rail is provided on at least one side of the extension plate, and a guide groove matching the guide rail is provided in the accommodating cavity.

[0009] Preferably, a detachable guardrail is provided on a side of the extension plate away from the hydraulic cylinder.

[0010] Preferably, one end of the piston rod of the hydraulic cylinder is tilted upward, the middle of the extension plate is hinged to the piston rod of the hydraulic cylinder, and the upper end of the extension plate is hinged to the end surface of the foot pedal so that the extension plate can be in a vertical state or a horizontal state.

[0011] Preferably, the driving mechanism further comprises a hydraulic station arranged on one side of the medium frequency induction furnace, and the hydraulic station is connected to the hydraulic cylinder via an oil pipe.

[0012] Preferably, the driving mechanism also includes a hydraulic cylinder control circuit for controlling the movement of the hydraulic cylinder. The medium frequency induction furnace includes a tilting operating table arranged on one side of the furnace body. The hydraulic cylinder control circuit is interlocked with the control circuit of the tilting operating table. When the tilting operating table controls the furnace body to tilt, the hydraulic cylinder control circuit controls the hydraulic cylinder to extend or retract the extension plate.

[0013] Preferably, a control button is provided on the tilting operation table of the medium frequency induction furnace, the control button is electrically connected to the driving mechanism, and the control button controls the driving mechanism to drive the extension plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By arranging an extension plate and a driving mechanism, a foot pedal is provided with a accommodating cavity, and the extension plate is driven by the driving mechanism so that the extension plate can be extended or retracted; when the extension plate is extended, the length of the foot pedal is increased, and the extension plate is provided for the operator to stand, thereby expanding the standing space of the operator. The operator can stand not only on the foot pedal but also on the extension plate, thereby ensuring that the operator has enough space to repair the furnace nozzle on the foot pedal; when the extension plate is not needed, the extension plate is driven by the driving mechanism to be retracted, thereby avoiding interference between the extension plate and the front structural parts, the molten iron ladle, etc. of the furnace when the furnace body of the medium frequency induction furnace is tilted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0018] Figure 3 This is a structural schematic diagram of the first embodiment of the utility model in a furnace body tilting state;

[0019] Figure 4 This is a structural schematic diagram of the second embodiment of the utility model in which the extension plate is in a vertical state;

[0020] Figure 5 This is a structural schematic diagram of the second embodiment of the utility model in which the extension plate is in a horizontal state.

[0021] Figure ID:

[0022] 1- foot pedal; 101- accommodating chamber; 2- extension plate; 3- hydraulic cylinder; 4- guide rail; 5- hinged seat; 6- guardrail; 7- hydraulic station; 8- furnace body; 9- furnace nozzle; 10- tilting operating table; 11- molten iron ladle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment 1

[0026] See also Figure 1 and Figure 2 An extended footrest structure for a medium frequency induction furnace includes a footrest 1, an extension plate 2 and a driving mechanism. The footrest 1 of the medium frequency induction furnace is laid on the top of the furnace body 8 of the medium frequency induction furnace. A receiving cavity 101 is provided on one side of the footrest 1. The driving mechanism is arranged in the receiving cavity 101. The driving mechanism is connected to the extension plate 2 so that the extension plate 2 can be extended or retracted, thereby adjusting the length of the footrest 1. Specifically, the footrest is laid on the top of the furnace body of the medium frequency induction furnace by welding.

[0027] By providing an extension plate 2 and a driving mechanism, the extension plate 2 is driven by the driving mechanism to extend or retract the extension plate 2, thereby adjusting the length of the foot pedal 1; when the extension plate 2 is extended, the length of the foot pedal 1 is increased, and the extension plate 2 is provided for the operator to stand, thereby expanding the standing space of the operator, and the operator can stand not only on the foot pedal 1 but also on the extension plate 2, thereby ensuring that the operator has enough space to repair the furnace nozzle on the foot pedal; when the extension plate 2 is not needed, the extension plate 2 is driven by the driving mechanism to retract the extension plate, thereby avoiding interference between the extension plate 2 and the front structural parts, the iron ladle, etc. of the furnace when the furnace body of the medium frequency induction furnace is tilted.

[0028] Specifically, the driving mechanism includes a hydraulic cylinder 3, a piston rod of which is connected to the extension plate 2, and the hydraulic cylinder 3 can drive the extension plate 2 to move when it is extended and retracted, so that the extension plate 2 can be extended or retracted, thereby adjusting the length of the footrest 1. In order to make the extension plate 2 move stably, two hydraulic cylinders 3 are provided in this embodiment, which are arranged in parallel in the accommodating chamber 101, and the two hydraulic cylinders 3 act on the extension plate 2 at the same time.

[0029] In this embodiment, the hydraulic cylinder 3 is horizontally arranged in the accommodating chamber 101, and the extension plate 2 is slidably arranged in the accommodating chamber 101 so that the extension plate 2 can be extended or retracted into the accommodating chamber 101. When the hydraulic cylinder 3 is extended and retracted, it can drive the extension plate 2 to slide so that the extension plate 2 can be extended or retracted into the accommodating chamber 101. When the extension plate 2 is extended out of the accommodating chamber 101, the extension plate 2 can be used for the operator to stand, which expands the standing space of the operator. The operator can stand not only on the foot pedal 1, but also on the extension plate 2, so as to ensure that the operator has enough space to repair the furnace nozzle on the foot pedal; when the extension plate 2 is not needed, the extension plate 2 is driven by the driving mechanism to retract the extension plate into the accommodating chamber 101, so as to avoid the interference of the extension plate 2 with the front structure of the furnace, the iron ladle, etc. when the furnace body of the medium frequency induction furnace is tilted.

[0030] Preferably, at least one side of the extension plate 2 is provided with a guide rail 4, and the accommodating chamber 101 is provided with a guide groove that cooperates with the guide rail 4, which is not shown in the figure. The guide rail 4 and the guide groove cooperate with each other to guide the sliding of the extension plate 2, prevent the extension plate 2 from sliding and deviating, and help improve the sliding stability of the extension plate 2. In this embodiment, guide rails 4 are provided on both sides of the extension plate 2, and two guide grooves are correspondingly provided in the accommodating chamber 101, which can further improve the sliding stability of the extension plate 2. In addition, the guide rail 4 can be provided on the top surface of the extension plate 2, and a guide groove can be provided at a corresponding position in the accommodating chamber 101, which can also improve the sliding stability of the extension plate 2.

[0031] Preferably, considering the safety of the operator when performing furnace nozzle repair work on the extension plate 2, the present embodiment provides a detachable guardrail 6 on the side of the extension plate 2 away from the hydraulic cylinder 3. The guardrail 6 is installed before the furnace nozzle repair work is performed to prevent the occurrence of falling accidents.

[0032] Preferably, the driving mechanism further includes a hydraulic station 7 arranged on one side of the medium frequency induction furnace, and the hydraulic station 7 is connected to the hydraulic cylinder 3 through an oil pipe. The hydraulic station is a hydraulic device composed of a driving motor, a hydraulic pump, an oil tank, a solenoid valve and other components, and its main function is to convert mechanical energy into hydraulic energy, provide hydraulic power for the hydraulic cylinder 3, and thus drive the extension plate 2 to slide along the guide rail 4.

[0033] See also Figure 2When in use, the piston rod of the hydraulic cylinder 3 is first driven to extend through the driving mechanism, and the extension plate 2 is pushed out of the accommodating chamber 101 by the piston rod of the hydraulic cylinder 3, so that the extension plate 2 extends out of the accommodating chamber 101 to expand the operating space of the operator, and then the guardrail 6 is installed on the side of the extension plate 2 away from the hydraulic cylinder 3. At this time, the operator can stand on the extension plate 2 to repair the furnace nozzle; after the furnace nozzle repair operation is completed, the guardrail 6 is first removed, and then the piston rod of the hydraulic cylinder 3 is driven to retract through the driving mechanism. The extension plate 2 moves with the piston rod of the hydraulic cylinder 3 and retracts into the accommodating chamber 101 to avoid interference between the extension plate 2 and the front structure of the furnace, the iron ladle, etc. when the furnace body of the medium frequency induction furnace is tilted.

[0034] It should be noted that if the extension plate 2 extends out of the accommodating cavity 101 when the tilting operation table 10 controls the furnace body 8 to tilt, the extension plate 2 will collide with the ladle 11 or the front structure of the furnace, thereby damaging the equipment. Figure 3 Therefore, after the furnace nozzle repair operation is completed, the extension plate 2 is retracted into the accommodating cavity 101 to avoid collision.

[0035] Preferably, the driving mechanism also includes a hydraulic cylinder control circuit for controlling the action of the hydraulic cylinder 3. The medium frequency induction furnace includes a tilting operation platform 10 arranged on one side of the furnace body 8. The tilting operation platform 10 is used to control the furnace body 8 to tilt. The hydraulic cylinder control circuit is interlocked with the control circuit of the tilting operation platform 10. When the tilting operation platform 10 controls the furnace body 8 to tilt, the hydraulic cylinder control circuit controls the hydraulic cylinder 3 to retract the extension plate 2 into the accommodating chamber 101 to prevent the extension plate 2 from extending during the process of the furnace body 8 tilting and interfering with the ladle and the like to cause a malfunction. The hydraulic cylinder control circuit is interlocked with the control circuit of the tilting operation platform 10 to set the precondition that the extension plate 2 can be operated to be operated only when the tilting operation platform 10 does not control the furnace body 8 to tilt. Whether the furnace body 8 tilts is identified by the opening and closing of the furnace body seat limit switch. When the furnace body seat limit switch is closed, the furnace body 8 does not tilt, and the extension plate 2 can be operated at this time. When the furnace body seat limit switch is opened, the furnace body 8 tilts, and the extension plate 2 cannot be operated at this time. In this embodiment, a hinged structure is provided on the side wall of the furnace body 8 to drive the furnace body 8 to rotate so as to realize the tilting of the furnace body 8. The tilting operating platform 10 controls the tilting of the furnace body 8 through the hinged structure. The hinged structure is a prior art and will not be described in detail here.

[0036] Preferably, in order to improve the convenience of operation, a control button is provided on the tilting operation table 10 of the medium frequency induction furnace, the control button is electrically connected to the driving mechanism, and the control button controls the driving mechanism to drive the extension plate 2. Specifically, the control button controls the switching of the solenoid valve on the hydraulic station 7, thereby controlling the extension and retraction of the piston rod of the hydraulic cylinder 3 to control the movement of the extension plate 2.

[0037] Embodiment 2

[0038] See also Figure 4In this embodiment, one end of the piston rod of the hydraulic cylinder 3 is tilted upward, the middle of the extension plate 2 is hinged to the piston rod of the hydraulic cylinder 3, and the upper end of the extension plate 2 is hinged to the end surface of the footrest 1 so that the extension plate 2 can be in a vertical state or a horizontal state. Among them, the middle of the extension plate 2 is provided with a hinge seat 5, and the middle of the extension plate 2 can be hinged to the piston rod of the hydraulic cylinder 3 through the hinge seat 5.

[0039] When in use, the piston rod of the hydraulic cylinder 3 is driven to extend obliquely through the driving mechanism. At this time, since the upper end of the extension plate 2 is hinged to the end surface of the footrest 1 and the middle part of the extension plate 2 is hinged to the piston rod of the hydraulic cylinder 3, the extension plate 2 can be flipped from a vertical state to a horizontal state (see Figure 5 ), at this time, the extension plate 2 is in the extended state, which increases the length of the footrest 1, and the operator can stand on the extension plate 2 to repair the furnace nozzle; after the furnace nozzle repair operation is completed, the piston rod of the hydraulic cylinder 3 is driven by the driving mechanism to retract obliquely, and the extension plate 2 is driven by the piston rod of the hydraulic cylinder 3 to flip from the horizontal state to the vertical state (see Figure 4 ), at this time, the extension plate 2 is in a retracted state, which can prevent the extension plate 2 from interfering with the furnace front structural parts, molten iron ladle, etc. when the furnace body of the medium frequency induction furnace is tilted.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extended footrest structure for a medium frequency induction furnace, characterized in that: The invention comprises a foot pedal (1), an extension plate (2) and a driving mechanism, wherein the foot pedal (1) is laid on the top of a furnace body (8) of a medium frequency induction furnace, a receiving cavity (101) is provided on one side of the foot pedal (1), and the driving mechanism is arranged in the receiving cavity (101), and the driving mechanism is used to drive the extension plate (2) to extend or retract so as to adjust the length of the foot pedal (1).

2. The extended footrest structure for a medium frequency induction furnace according to claim 1, characterized in that: The driving mechanism comprises a hydraulic cylinder (3), and a piston rod of the hydraulic cylinder (3) is connected to the extension plate (2).

3. The extended footrest structure for a medium frequency induction furnace according to claim 2, characterized in that: The hydraulic cylinder (3) is horizontally arranged in the accommodating cavity (101), and the extension plate (2) is slidably arranged in the accommodating cavity (101) so that the extension plate (2) can be extended or retracted into the accommodating cavity (101).

4. The extended footrest structure for a medium frequency induction furnace according to claim 3, characterized in that: A guide rail (4) is provided on at least one side of the extension plate (2), and a guide groove matching the guide rail (4) is provided in the accommodating cavity (101).

5. The extended footrest structure for a medium frequency induction furnace according to claim 3, characterized in that: A detachable guardrail (6) is provided on one side of the extension plate (2) away from the hydraulic cylinder (3).

6. The extended footrest structure for a medium frequency induction furnace according to claim 2, characterized in that: One end of the piston rod of the hydraulic cylinder (3) is tilted upward, the middle part of the extension plate (2) is hinged to the piston rod of the hydraulic cylinder (3), and the upper end of the extension plate (2) is hinged to the end surface of the foot pedal (1) so that the extension plate (2) can be in a vertical state or a horizontal state.

7. The extended footrest structure for a medium frequency induction furnace according to claim 2, characterized in that: The driving mechanism further comprises a hydraulic station (7) arranged on one side of the medium frequency induction furnace, and the hydraulic station (7) is connected to the hydraulic cylinder (3) via an oil pipe.

8. The extended footrest structure for a medium frequency induction furnace according to claim 7, characterized in that: The driving mechanism also includes a hydraulic cylinder control circuit for controlling the movement of the hydraulic cylinder (3); the medium frequency induction furnace includes a tilting operating table (10) arranged on one side of the furnace body (8); the hydraulic cylinder control circuit is interlocked with the control circuit of the tilting operating table (10); when the tilting operating table (10) controls the furnace body (8) to tilt, the hydraulic cylinder control circuit controls the hydraulic cylinder (3) to extend or retract the extension plate (2).

9. The extended footrest structure for a medium frequency induction furnace according to claim 8, characterized in that: A control button is provided on the tilting operating table (10) of the medium frequency induction furnace, the control button is electrically connected to the driving mechanism, and the control button controls the driving mechanism to drive the extension plate (2).

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