A sandwich heat-insulating structure for a cab of a metallurgical manufacturing crane and a control method thereof

Abstract

The application discloses a crane cab wallboard heat insulation structure, aiming to provide a metallurgical manufacturing crane cab interlayer heat insulation structure and a control method thereof, which has good heat insulation effect, can prevent the temperature in the cab from rising too fast, and reduces energy consumption. The technical scheme is that a gas bag structure is arranged in the wallboard, and the gas bag structure is extruded to restore to realize active heat exchange, so that the temperature inside the cab wall is kept low. The heat insulation colloid arranged in the heat insulation chamber can prevent the temperature from rising too fast, and improve the heat insulation effect of the wall. The gas bag structure can fill cold air inside, and can actively discharge hot air in the gas bag to the cab when the temperature of the gas in the gas bag is too high, so as to discharge the hot air into the cab and suck cold air from the cab to exchange heat, thereby cooling the heat insulation colloid synchronously. The application is suitable for the heat insulation technical field of the crane cab.

Description

Technical Field

[0001] This invention relates to a heat insulation structure for the wall panel of a crane operator's cab, and more specifically, to a sandwich heat insulation structure for a metallurgically manufactured crane operator's cab and its control method. Background Technology

[0002] Cranes can be classified into five main categories according to their movement method: fixed cranes, climbing cranes, mobile cranes, radial slewing cranes, and traveling cranes. They can also be classified into manual cranes, electric cranes, and hydraulic cranes according to their driving method.

[0003] In the metallurgical manufacturing process, due to the large volume and weight of raw materials and the high ambient temperature, a large amount of powder and pungent odors are generated during the metallurgical process. Prolonged exposure to these environments can affect the health of workers. Therefore, metallurgical cranes are usually used for large-scale metallurgical production control. Workers control the crane from the operator's cab to improve production efficiency and safety. However, during metallurgical processing, the insulation of the operator's cab walls is poor. In order to prevent metal from splashing during stamping, the operator's cab usually needs to be sealed with windows closed. An air circulation structure and air conditioning are installed inside for cooling. During metallurgical processing, due to the poor insulation of the operator's cab, the internal temperature rises rapidly. It is necessary to keep the air conditioning running at high power to maintain a low temperature inside the operator's cab, resulting in high energy consumption and failing to achieve a good high-temperature protection effect. The working environment for workers is poor. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a sandwich insulation structure and its control method for a crane operator's cab manufactured in metallurgy, which has good heat insulation effect, can prevent the temperature in the operator's cab from rising too quickly, and reduces energy consumption.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sandwich-type heat insulation structure for a crane operator's cab in metallurgical manufacturing, comprising an operator's cab frame, wherein wall panels and observation windows are respectively provided on the operator's cab frame, and a top plate and a bottom plate are respectively provided at the upper and lower ends of the operator's cab frame. The wall panels, top plate, and bottom plate are configured as hollow structures, and a heat insulation layer is further provided inside the hollow structure. The heat insulation layer has several interconnected heat insulation chambers, and some of the heat insulation chambers have heat insulation colloids relatively close to the outer end of the operator's cab and airbag structures relatively close to the inner end of the operator's cab. The airbag structures are configured to output gas into the operator's cab after being squeezed by external force.

[0006] The present invention is further configured such that: a rotating frame is provided at the bottom of the driver's cab frame, the rotating frame includes a rotating base and a connecting shaft disposed on the rotating base, the connecting shaft passes through the driver's cab frame and is fixedly connected to the bottom plate disposed in the driver's cab frame.

[0007] Preferably, the rotating base is further provided with a torsion table, which has a locked state fixed to the rotating base and a movable state that can rotate relative to the rotating base.

[0008] Preferably, each of the aforementioned heat-insulating chambers has an airflow hole facing the interior of the driver's cab. The airbag structure in the base plate extends to the outside of the base plate and is fixedly connected to the torsion table. The airbag structure in the base plate is configured to torsionally compress the airbag structure and output gas into the driver's cab when the driver's cab rotates relative to the rotating base by the locking state of the torsion table. At the same time, when the torsion table is in the moving state, it drives the torsion table to rotate to achieve reset.

[0009] Preferably, the top plate is further provided with a cooling structure, which includes an airflow channel disposed in the top plate and an air outlet disposed on the top plate, wherein the airflow channel and the heat insulation chamber are alternately arranged.

[0010] Preferably, the bottom of the driver's cab is also provided with a detection device, which is configured to detect the rotation angle of the driver's cab and control the torsion table to switch between locked and moving states.

[0011] This application also discloses a control method for a sandwich insulation structure for a crane operator's cab in metallurgical manufacturing, including the following steps: S1, start the crane, the cooling structure outputs cold air into the operator's cab, set the suitable working temperature in the operator's cab to W, and at the same time detect the temperature in the operator's cab, the detected value is W1; S2. Determine the temperature. If W1 > W, then determine that the current temperature in the driver's cab is high and increase the cooling efficiency of the cooling structure. S3. During the operation of the crane, continuously monitor the temperature W2 in the driver's cab. If W2 ≥ 1.5W, it is determined that the heat insulation effect of the driver's cab is poor, and the heat exchange control of the airbag structure is implemented. Otherwise, continue monitoring. S4. Control the torsion table to disengage from the moving state and switch to the locked state, while driving the driver's cab to rotate. Since the torsion table is in the locked state, it is fixed relative to the rotating base, so that the airbag structure on the torsion table is twisted when the driver's cab rotates, and the air inside is compressed, thereby causing the hotter gas inside the airbag structure to be discharged into the driver's cab. S5. Set the threshold value of the driver's cab rotation angle during the heat exchange process to C0. During the rotation of the driver's cab, the detection device on the rotating base detects the rotation angle of the driver's cab. The detection value is C. If C < C0, it is determined that the rotation angle of the driver's cab is small, and the driver's cab is continuously driven to rotate. Otherwise, it is determined that the current rotation angle of the driver's cab is large, and the process jumps to S6 for cooling control. S6. Maintain the rotation angle of the driver's cab and the locking of the torsion table, while increasing the cooling efficiency of the cooling structure. During the cooling process, the temperature inside the driver's cab is detected. The detected value is W3. If W3≤W, the locking of the torsion table is canceled, and the torsion table becomes a moving state. Otherwise, the temperature inside the driver's cab continues to decrease. S7. After the torsion table enters the moving state, the airbag structure in the driver's cab resets, driving the torsion table to rotate synchronously. During the rotation and reset process, the airbag structure absorbs the cooler air in the driver's cab through the airflow holes, which lowers the internal temperature of the airbag structure and prevents the hotter air from the outside from entering the driver's cab through the wall.

[0012] Preferably, the control method further includes active heat exchange control during crane operation, including the following steps: S11, during the rotation of the crane, the temperature in the driver's cab is detected, and the detected value is W4. If W4≥1.5W, it is determined that the heat insulation effect of the driver's cab wall is poor, and heat exchange control is performed on the airbag structure during rotation. S12. Lock the torsion table so that the airbag structure inside the floor is torsionally compressed during the rotation of the driver's cab. S13. Detect the rotation angle of the driver's cab. The detection value is C1. When C1=C0, pause the rotation of the driver's cab and simultaneously release the locking of the torsion table. After the torsion table is reset, rotate the driver's cab again until the crane driver's cab rotates to the set position.

[0013] By adopting the above technical solution, the following beneficial effects are achieved: 1. This application forms a sealed driver's cab structure by setting wall panels, a top panel, and a bottom panel around the outer perimeter of the driver's cab frame. The wall panels, bottom panel, and top panel are hollow structures with several interconnected heat-insulating chambers inside. These chambers are filled with heat-insulating colloid and airbag structures. The airbag structures can achieve active heat exchange through compression and recovery, maintaining a low temperature inside the driver's cab walls. The heat-insulating colloid within the heat-insulating chambers prevents excessive temperature rise and improves the wall's heat insulation effect. Specifically, during the process of heat transfer from the external environment to the driver's cab, the heat air passes through the heat-insulating colloid beforehand. After being cooled by the cooler gas in the airbags, the overall temperature of the heat-insulating colloid is low, effectively blocking the transfer of external high temperatures to the driver's cab. Simultaneously, the airbag structure can cool the heat air passing through the wall panels using the cooler gas inside. Furthermore, the airbag structure can also cool the heat air passing through the wall panels using the cooler gas inside. The system is filled with cold air and can actively expel hot air into the driver's cab and draw in cold air from the driver's cab for heat exchange when the gas temperature inside the airbag is too high. This simultaneously cools the insulation colloid, improving the insulation effect and preventing the insulation effect from weakening due to prolonged working time. In order to realize the active heat exchange function of the airbag structure, the airbag structure inside the base plate is extended to the outside of the base plate and fixedly connected to the torsion table. When the driver's cab rotates relative to the rotating base, the airbag structure remains stationary relative to the rotating base based on the locked state of the torsion table. This converts the mechanical energy of the driver's cab rotation into the power source of the airbag structure torsion, realizing the effective capture and reuse of the rotational mechanical energy during crane operation. The active heat exchange function can be triggered without the need for an additional power source, significantly reducing energy consumption. At the same time, the airflow channels of the cooling structure in the top plate and the heat insulation chamber are alternately arranged, so that the cold air delivery and heat insulation form a complementary layout in space, further improving the overall temperature control efficiency. The entire device has a compact structure and a clear working relationship between its components, which can systematically solve the technical problems of poor heat insulation, rapid temperature rise, and high air conditioning energy consumption in the driver's cab under high-temperature metallurgical conditions from a structural perspective.

[0014] 2. Furthermore, this application enables the airbag structure to achieve continuous temperature regulation through a heat exchange process within the insulation chamber. Specifically, when the airbag structure is subjected to torsional compression by the torsion table, the hotter gas formed inside due to heat exchange with the external environment is discharged into the driver's cab through airflow holes facing the driver's cab. This gas is then cooled by the air conditioning cooling structure within the driver's cab, preventing the hot gas inside the airbag structure from entering the driver's cab and causing a rise in the driver's cab temperature. Once the temperature inside the driver's cab drops to a set value, the torsion table changes from a locked state to a moving state, allowing the airbag structure to rely on its own elastic restoring force to drive the torsion table to rotate and reset. During the reset process, the airbag structure can absorb cooler gas from the driver's cab through the airflow holes, significantly reducing the internal temperature of the airbag and thus minimizing the temperature entering the driver's cab during subsequent operations. This process allows the insulation structure within the interlayer to dynamically adjust based on temperature, optimizing the insulation and cooling effect while reducing the operating power of the cooling structure and lowering energy consumption during operation.

[0015] 3. Simultaneously, during the operation of the driver's cab, this application achieves automated heat insulation maintenance and internal cooling by pre-setting a temperature threshold and controlling the driver's cab based on the temperature. During normal operation, the cooling structure maintains the temperature inside the driver's cab at the set value. If the temperature inside the driver's cab rises further, it will determine that the cooling effect of the current interlayer insulation structure is poor, and heat exchange control will be performed on the airbag structure to convert the hotter gas in the airbag structure into colder gas. During the heat exchange process, the rotation angle of the driver's cab is detected in real time to prevent damage to the airbag caused by excessive rotation angle. At the same time, in order to ensure that the internal temperature of the airbag structure is maintained at a low value after heat exchange control, the temperature inside the driver's cab is detected before the airbag structure is reset to prevent the hot gas in the original airbag structure from being discharged into the driver's cab and causing the internal temperature of the driver's cab to rise. This can extend the service life of the insulation structure after a single heat exchange control and avoid energy waste caused by multiple heat exchange controls.

[0016] 4. Furthermore, this application also discloses an active heat exchange control method during crane operation. During crane rotation, the system determines whether heat exchange control of the airbag structure is required based on the temperature inside the driver's cab. If the temperature inside the driver's cab is normal, it is determined that no heat exchange control is needed, and the torsion table is adjusted to a moving state so that the torsion table and the airbag structure connected to it can rotate synchronously without torsion compression. Conversely, if the temperature inside the driver's cab is high, it is determined that the current heat insulation effect is poor and heat exchange control is needed. Heat exchange control is performed synchronously with the rotation of the driver's cab, achieving heat exchange control while rotating. Active hot air discharge from the interlayer chamber can be completed without interrupting the normal operation of the crane. At the same time, the rotation angle is detected during the rotation of the driver's cab. After the rotation angle reaches the preset value, the rotation of the driver's cab is paused. After the torsion table is reset, rotation continues. It drives the airbag structure through the inevitable rotation process during crane operation, achieving heat insulation performance maintenance without increasing extra working time. It is suitable for working conditions where the crane needs to rotate frequently during operation. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the driver's cab structure according to an embodiment of the sandwiched heat insulation structure and control method of the driver's cab of a metallurgical manufacturing crane of the present invention. Figure 2 This is a flowchart illustrating the control method of an embodiment of the sandwiched heat insulation structure and control method for a crane operator's cab in metallurgical manufacturing according to the present invention. Figure 3 This is a flowchart of an active heat exchange control method according to an embodiment of the sandwich insulation structure and control method for a crane operator's cab in metallurgical manufacturing according to the present invention. The attached diagram is labeled as follows: 1. Wall panel; 2. Observation window; 3. Top panel; 4. Bottom panel; 5. Hollow structure; 51. Thermal insulation colloid; 52. Airbag structure; 6. Rotating frame; 61. Rotating base; 62. Connecting shaft; 63. Torsion table; 7. Airflow hole; 8. Cooling structure; 81. Airflow channel; 82. Air outlet. Detailed Implementation

[0018] Reference Figures 1 to 3 The embodiments of the present invention, namely the sandwiched heat insulation structure and control method for the operator's cab of a metallurgical manufacturing crane, are further described.

[0019] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0020] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0021] A sandwich-type heat insulation structure for a crane operator's cab in metallurgical manufacturing includes a cab frame, on which wall panels 1 and observation windows 2 are respectively provided. Top plates 3 and bottom plates 4 are respectively provided at the upper and lower ends of the cab frame. The wall panels 1, top plates 3, and bottom plates 4 are configured as hollow structures 5. A heat insulation layer is also provided inside the hollow structure 5. The heat insulation layer has several interconnected heat insulation chambers. Some of the heat insulation chambers have heat insulation colloid 51 relatively close to the outer end of the operator's cab and airbag structures 52 relatively close to the inner end of the operator's cab. The airbag structures 52 are configured to output gas into the operator's cab after being squeezed by external force.

[0022] The driver's cab frame is provided with a rotating frame 6 at the bottom. The rotating frame 6 includes a rotating base 61 and a connecting shaft 62 disposed on the rotating base 61. The connecting shaft 62 passes through the driver's cab frame and is fixedly connected to the bottom plate 4 disposed in the driver's cab frame.

[0023] Preferably, the rotating base 61 is further provided with a torsion table 63, which has a locked state fixed to the rotating base 61 and a movable state that can rotate relative to the rotating base 61.

[0024] Preferably, each of the heat-insulating chambers has an airflow hole 7 facing the interior of the driver's cab. The airbag structure 52 in the base plate 4 extends to the outside of the base plate 4 and is fixedly connected to the torsion table 63. The airbag structure 52 in the base plate 4 is configured to torsionally compress the airbag structure 52 and output gas into the driver's cab when the driver's cab rotates relative to the rotating base 61 through the locking state of the torsion table 63. At the same time, when the torsion table 63 is in the moving state, it drives the torsion table 63 to rotate to achieve reset.

[0025] Preferably, the top plate 3 is further provided with a cooling structure 8, which includes an airflow channel 81 disposed in the top plate 3 and an air outlet 82 disposed on the top plate 3. The airflow channel 81 and the heat insulation chamber are alternately arranged.

[0026] Preferably, the bottom of the driver's cab is also provided with a detection device, which is configured to detect the rotation angle of the driver's cab and control the torsion table 63 to switch between locked and moving states.

[0027] This application also discloses a control method for a sandwich insulation structure for a crane operator's cab in metallurgical manufacturing, including the following steps: S1, start the crane, the cooling structure outputs cold air into the operator's cab, set the suitable working temperature in the operator's cab to W, and at the same time detect the temperature in the operator's cab, the detected value is W1; S2. Determine the temperature. If W1 > W, then determine that the current temperature in the driver's cab is high and increase the cooling efficiency of the cooling structure. S3. During the operation of the crane, continuously monitor the temperature W2 in the driver's cab. If W2 ≥ 1.5W, it is determined that the heat insulation effect of the driver's cab is poor, and the heat exchange control of the airbag structure is implemented. Otherwise, continue monitoring. S4. Control the torsion table to disengage from the moving state and switch to the locked state, while driving the driver's cab to rotate. Since the torsion table is in the locked state, it is fixed relative to the rotating base, so that the airbag structure on the torsion table is twisted when the driver's cab rotates, and the air inside is compressed, thereby causing the hotter gas inside the airbag structure to be discharged into the driver's cab. S5. Set the threshold value of the driver's cab rotation angle during the heat exchange process to C0. During the rotation of the driver's cab, the detection device on the rotating base detects the rotation angle of the driver's cab. The detection value is C. If C < C0, it is determined that the rotation angle of the driver's cab is small, and the driver's cab is continuously driven to rotate. Otherwise, it is determined that the current rotation angle of the driver's cab is large, and the process jumps to S6 for cooling control. S6. Maintain the rotation angle of the driver's cab and the locking of the torsion table, while increasing the cooling efficiency of the cooling structure. During the cooling process, the temperature inside the driver's cab is detected. The detected value is W3. If W3≤W, the locking of the torsion table is canceled, and the torsion table becomes a moving state. Otherwise, the temperature inside the driver's cab continues to decrease. S7. After the torsion table enters the moving state, the airbag structure in the driver's cab resets, driving the torsion table to rotate synchronously. During the rotation and reset process, the airbag structure absorbs the cooler air in the driver's cab through the airflow holes, which lowers the internal temperature of the airbag structure and prevents the hotter air from the outside from entering the driver's cab through the wall.

[0028] Preferably, the control method further includes active heat exchange control during crane operation, including the following steps: S11, during the rotation of the crane, the temperature in the driver's cab is detected, and the detected value is W4. If W4≥1.5W, it is determined that the heat insulation effect of the driver's cab wall is poor, and heat exchange control is performed on the airbag structure during rotation. S12. Lock the torsion table so that the airbag structure inside the floor is torsionally compressed during the rotation of the driver's cab. S13. Detect the rotation angle of the driver's cab. The detection value is C1. When C1=C0, pause the rotation of the driver's cab and simultaneously release the locking of the torsion table. After the torsion table is reset, rotate the driver's cab again until the crane driver's cab rotates to the set position.

[0029] This application constructs a sealed driver's cab structure by enclosing a wall panel 1, a top panel 3, and a bottom panel 4 on the outer periphery of the driver's cab frame. The wall panel 1, bottom panel 4, and top panel 3 are hollow structures, each containing several interconnected heat-insulating chambers. These chambers are filled with heat-insulating colloid 51 and airbag structures 52. The airbag structures 52 actively exchange heat through compression and recovery, maintaining a low temperature inside the driver's cab walls. The heat-insulating colloid 51 within the heat-insulating chambers prevents excessive temperature rise, improving the wall's heat insulation effect. Specifically, during the transfer of hot air from the external environment to the driver's cab, the hot air passes through the heat-insulating colloid 51 beforehand. After being cooled by the cooler gas in the airbags, the heat-insulating colloid 51 has a low overall temperature, effectively blocking the transfer of external high temperatures into the driver's cab. Simultaneously, the airbag structures 52 cool the hot air passing through the wall panel 1 using the cool air inside. The airbag structures 52 are filled with cool air and can also cool the hot air passing through the wall panel 1. When the gas temperature inside the airbag is too high, it actively discharges hot air into the driver's cab and draws in cold air from the driver's cab for heat exchange, thereby simultaneously cooling the heat insulation colloid 51, improving the heat insulation effect, and avoiding the problem of the heat insulation effect weakening due to prolonged working time. At the same time, in order to realize the active heat exchange function of the airbag structure 52, the airbag structure 52 in the base plate 4 is extended to the outside of the base plate 4 and fixedly connected to the torsion table 63. When the driver's cab rotates relative to the rotating base 61, the airbag structure 52 remains stationary relative to the rotating base 61 based on the locked state of the torsion table 63. This converts the mechanical energy of the driver's cab rotation process into the power source of the airbag structure 52 torsion, realizing the effective capture and reuse of the rotational mechanical energy during crane operation. The active heat exchange function can be triggered without the need for an additional power source, significantly reducing energy consumption. Meanwhile, the airflow channel 81 of the cooling structure 8 in the top plate 3 is alternately set with the heat insulation chamber, so that the cold air delivery and heat insulation form a complementary layout in space, further improving the overall temperature control efficiency. The entire device has a compact structure and a clear working relationship between its components, which can systematically solve the technical problems of poor heat insulation, rapid temperature rise, and high air conditioning energy consumption in the driver's cab under high-temperature metallurgical conditions from a structural perspective.

[0030] Furthermore, this application enables the airbag structure 52 to achieve continuous temperature regulation through the heat exchange process within the insulation chamber. Specifically, when the airbag structure 52 is torn and compressed by the torsion table 63, the hotter gas formed inside it after heat exchange with the external environment is discharged into the driver's cab through the airflow hole 7 facing the driver's cab. It is then cooled by the air conditioning cooling structure 8 in the driver's cab, preventing the hot gas inside the airbag structure 52 from entering the driver's cab and causing the temperature inside the driver's cab to rise. After the temperature inside the driver's cab drops to a set value, the torsion table 63 changes from a locked state to a moving state, allowing the airbag structure 52 to drive the torsion table 63 to rotate and reset by its own elastic restoring force. During the reset process, it can absorb the cooler gas in the driver's cab through the airflow hole 7, significantly reducing the internal temperature of the airbag. This reduces the temperature entering the driver's cab during subsequent operations. The above process enables the insulation structure in the interlayer to be dynamically adjusted based on temperature, optimizing the insulation and cooling effect, while reducing the operating power of the cooling structure 8 and reducing energy consumption during operation.

[0031] Meanwhile, during the operation of the driver's cab, this application achieves automated heat insulation maintenance and internal cooling by pre-setting a temperature threshold and controlling the driver's cab based on the temperature. During normal operation, the cooling structure 8 maintains the temperature inside the driver's cab at the set value. If the temperature inside the driver's cab rises further, it will be determined that the cooling effect of the current interlayer heat insulation structure of the driver's cab is poor, and heat exchange control will be performed on the airbag structure 52 to convert the hotter gas in the airbag structure 52 into colder gas. During the heat exchange process, the rotation angle of the driver's cab is detected in real time to prevent damage to the airbag caused by excessive rotation angle. At the same time, in order to ensure that the internal temperature of the airbag structure 52 is maintained at a low value after heat exchange control, the temperature inside the driver's cab is detected before the airbag structure 52 is reset to prevent the hot gas in the original airbag structure 52 from being discharged into the driver's cab and causing the internal temperature of the driver's cab to rise. This can extend the service life of the heat insulation structure after a single heat exchange control and avoid energy waste caused by multiple heat exchange controls.

[0032] Furthermore, this application also discloses an active heat exchange control method during crane operation. During crane rotation, the system determines whether heat exchange control of the airbag structure 52 is required based on the temperature inside the driver's cab. If the temperature inside the driver's cab is normal, it is determined that no heat exchange control is required, and the torsion table 63 is adjusted to a moving state so that the torsion table 63 and the airbag structure 52 connected to it can rotate synchronously without torsion compression. Conversely, if the temperature inside the driver's cab is high, it is determined that the current heat insulation effect is poor and heat exchange control is required. Heat exchange control is performed synchronously with the rotation of the driver's cab, achieving heat exchange control while rotating. Active hot air discharge from the interlayer chamber can be completed without interrupting the normal operation of the crane. At the same time, the rotation angle is detected during the rotation of the driver's cab. After the rotation angle reaches the preset value, the rotation of the driver's cab is paused. After the torsion table 63 is reset, rotation continues. The airbag structure 52 is driven by the inevitable rotation process during crane operation, achieving heat insulation performance maintenance without increasing extra working time. This method is suitable for cranes that need to rotate frequently during operation.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. A sandwich-type heat insulation structure for a crane operator's cab in metallurgical manufacturing, comprising a cab frame, wherein wall panels (1) and observation windows (2) are respectively provided on the cab frame, and a top plate (3) and a bottom plate (4) are respectively provided at the upper and lower ends of the cab frame, characterized in that, The wall panel (1), top panel (3) and bottom panel (4) are configured as a hollow structure (5). The hollow structure (5) is also provided with a heat insulation layer. The heat insulation layer has several interconnected heat insulation chambers. Some of the heat insulation chambers have a heat insulation colloid (51) relatively close to the outer end of the driver's compartment and an airbag structure (52) relatively close to the inner end of the driver's compartment. The airbag structure (52) is configured to output gas into the driver's compartment after being squeezed by external force.

2. The sandwich insulation structure for a crane operator's cab in metallurgical manufacturing according to claim 1, characterized in that, The bottom of the driver's cab frame is provided with a rotating frame (6). The rotating frame (6) includes a rotating base (61) and a connecting shaft (62) disposed on the rotating base (61). The connecting shaft (62) passes through the driver's cab frame and is fixedly connected to the bottom plate (4) disposed in the driver's cab frame.

3. A sandwich-type heat insulation structure for a crane operator's cab in metallurgical manufacturing, as described in claim 2, is characterized in that... The rotating base (61) is also provided with a torsion table (63), which has a locked state that is fixed to the rotating base (61) and a movable state that can rotate relative to the rotating base (61).

4. A sandwich-type heat insulation structure for a crane operator's cab in metallurgical manufacturing, as described in claim 3, is characterized in that... Each of the heat-insulating chambers has an airflow hole (7) facing the interior of the driver's cab. The airbag structure (52) in the base plate (4) extends to the outside of the base plate (4) and is fixedly connected to the torsion table (63). The airbag structure (52) in the base plate (4) is configured to torsionally compress the airbag structure (52) and output gas into the driver's cab when the driver's cab rotates relative to the rotating base (61) by the locking state of the torsion table (63). At the same time, when the torsion table (63) is in the moving state, it drives the torsion table (63) to rotate to achieve reset.

5. A sandwich-type heat insulation structure for a crane operator's cab in metallurgical manufacturing, as described in claim 4, is characterized in that... The top plate (3) is also provided with a cooling structure (8), which includes an airflow channel (81) in the top plate (3) and an air outlet (82) on the top plate (3). The airflow channel (81) and the heat insulation chamber are alternately arranged.

6. A sandwich-type heat insulation structure for a crane operator's cab in metallurgical manufacturing, as described in claim 5, is characterized in that... The bottom of the driver's cab is also equipped with a detection device, which is configured to detect the rotation angle of the driver's cab and control the torsion table (63) to switch between locked and moving states.

7. A control method applicable to the sandwich thermal insulation structure for a crane operator's cab in metallurgical manufacturing as described in claim 6, characterized in that, Includes the following steps: S1. Start the crane, and the cooling structure outputs cold air into the driver's cab. Set the suitable working temperature in the driver's cab to W, and at the same time, detect the temperature in the driver's cab. The detected value is W1. S2. Determine the temperature. If W1 > W, then determine that the current temperature in the driver's cab is high and increase the cooling efficiency of the cooling structure. S3. During the operation of the crane, continuously monitor the temperature W2 in the driver's cab. If W2 ≥ 1.5W, it is determined that the heat insulation effect of the driver's cab is poor, and the heat exchange control of the airbag structure is implemented. Otherwise, continue monitoring. S4. Control the torsion table to disengage from the moving state and switch to the locked state, while driving the driver's cab to rotate. Since the torsion table is in the locked state, it is fixed relative to the rotating base, so that the airbag structure on the torsion table is twisted when the driver's cab rotates, and the air inside is compressed, thereby causing the hotter gas inside the airbag structure to be discharged into the driver's cab. S5. Set the threshold value of the driver's cab rotation angle during the heat exchange process to C0. During the rotation of the driver's cab, the detection device on the rotating base detects the rotation angle of the driver's cab. The detection value is C. If C < C0, it is determined that the rotation angle of the driver's cab is small, and the driver's cab is continuously driven to rotate. Otherwise, it is determined that the current rotation angle of the driver's cab is large, and the process jumps to S6 for cooling control. S6. Maintain the rotation angle of the driver's cab and the locking of the torsion table, while increasing the cooling efficiency of the cooling structure. During the cooling process, the temperature inside the driver's cab is detected. The detected value is W3. If W3≤W, the locking of the torsion table is canceled, and the torsion table becomes a moving state. Otherwise, the temperature inside the driver's cab continues to decrease. S7. After the torsion table enters the moving state, the airbag structure in the driver's cab resets, driving the torsion table to rotate synchronously. During the rotation and reset process, the airbag structure absorbs the cooler air in the driver's cab through the airflow holes, which lowers the internal temperature of the airbag structure and prevents the hotter air from the outside from entering the driver's cab through the wall.

8. The control method for a sandwich insulation structure for a crane operator's cab in metallurgical manufacturing, as described in claim 7, is characterized in that... The control method also includes active heat exchange control during crane operation, including the following steps: S11, during the crane rotation, the temperature in the driver's cab is detected, and the detected value is W4. If W4≥1.5W, it is determined that the heat insulation effect of the driver's cab wall is poor, and heat exchange control is performed on the airbag structure during rotation. S12. Lock the torsion table so that the airbag structure inside the floor is torsionally compressed during the rotation of the driver's cab. S13. Detect the rotation angle of the driver's cab. The detection value is C1. When C1=C0, pause the rotation of the driver's cab and simultaneously release the locking of the torsion table. After the torsion table is reset, rotate the driver's cab again until the crane driver's cab rotates to the set position.

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