Lifting device and heat preservation device

Abstract

The utility model relates to the technical field of heat preservation of metallurgical heat preservation pits, in particular to a lifting device and a heat preservation device. Wherein the lifting device comprises a cover plate used for lifting the heat preservation pit, and further comprises a transverse frame, a winch, a clamping jaw and a first driving motor, supporting legs are arranged at the two ends of the transverse frame, and the transverse frame is arranged on the heat preservation pit in the width direction of the heat preservation pit and used for supporting the whole lifting device above the heat preservation pit, so that the cover plate of the heat preservation pit can be conveniently lifted or put down. At least two winches are arranged on the transverse frame. The clamping jaw is connected to the winch and correspondingly arranged below the winch, and the winch controls the clamping jaw to move up and down. The first driving motor is connected to the clamping jaw and drives the clamping jaw to rotate close to or away from the cover plate, when the cover plate needs to be lifted, the first driving motor controls the clamping jaw to rotate close to the cover plate and is clamped and fixed to the bottom of the cover plate, the clamping jaw and the cover plate are driven by the winch to move upwards together, and the heat preservation pit cover plate is opened.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical insulation pit insulation technology, specifically to a lifting device and an insulation device. Background Technology

[0002] In the metallurgical process, because the capacity of the continuous casting workshop far exceeds the consumption of the rolling mill, some steel billets cannot be consumed immediately after production and need to be stored, awaiting processing in the rolling mill. However, during storage, the heat carried by the steel billets from the continuous casting workshop is gradually lost, and after entering the rolling mill, the steel billets still need to be heated to the rolling temperature, resulting in a waste of heating resources and an increase in carbon emissions.

[0003] Therefore, steel billets are usually stored in insulation pits equipped with covers. When it is necessary to remove the steel billets, the covers are opened. In existing technologies, they are usually opened by a single beam or an electric push rod. When opening the cover, the output end of the above structure must be perpendicular to the cover to open the cover by the single beam or electric push rod. There are certain requirements on the height and position of the cover of the insulation pit. Utility Model Content

[0004] This utility model was made to solve the above-mentioned technical problems. Its purpose is to provide a lifting device that enables the quick opening / closing of the cover plate of the insulation pit, thereby avoiding excessive heat loss from the insulation pit and resulting waste.

[0005] To achieve the above objectives, this utility model provides a lifting device for lifting the cover plate of an insulation pit, comprising a crossbeam with supporting legs at both ends, and arranged on the insulation pit along the width of the insulation pit; at least two winches are provided and arranged on the crossbeam; grippers are connected to the winches and correspondingly arranged below the winches; and a first drive motor is connected to the grippers and drives the grippers to rotate closer to or further away from the cover plate.

[0006] Preferably, it also includes a transmission component installed between the first drive motor and the gripper.

[0007] Preferably, the transmission component includes a reducer and a worm gear, the reducer being connected to the first drive motor, and the worm gear being connected to the gripper and the reducer.

[0008] Preferably, it further includes a movable wheel, disposed below the support leg; and a second drive motor, disposed at the edge of the support leg and connected to the movable wheel.

[0009] Preferably, it also includes an anti-collision device, which is disposed below the support leg along the traveling direction of the moving wheel.

[0010] Preferably, a laser rangefinder (not shown) is provided on the second drive motor, and a rangefinder reflector is provided on the edge of the cover plate.

[0011] Preferably, the support leg and the cross frame are welded together.

[0012] Preferably, it also includes an electrical control device, which is mounted on any of the support legs and connected to the first drive motor and the winch.

[0013] This utility model also provides a heat preservation device, including a heat preservation pit and a lifting device as described in any of the above, and further including a moving track arranged along the width direction of the heat preservation pit; the lifting device moves along the moving track.

[0014] Preferably, it also includes a steel take-up machine, an electrical control device connected to the lifting device, and a remote control device, which is communicatively connected to the electrical control device.

[0015] This utility model provides a lifting device for lifting the cover plate of an insulation pit. It includes a horizontal frame, a winch, grippers, and a first drive motor. The horizontal frame has support legs at both ends and is positioned along the width of the insulation pit to support the entire lifting device above the pit, facilitating the lifting or lowering of the cover plate. At least two winches are provided, located on either side of the horizontal frame. Grippers are connected to the winches and positioned below them, with the winches controlling their vertical movement. The first drive motor is connected to the grippers, causing them to rotate closer to or away from the cover plate. When the cover plate needs to be lifted, the first drive motor controls the grippers to rotate closer to the cover plate and engage with its bottom. The winch then drives the grippers and cover plate upwards together, opening the insulation pit cover plate. When the cover plate needs to be lowered, the winch drives the grippers and cover plate downwards to a designated position, after which the first drive motor controls the grippers to rotate away from the cover plate, releasing it and completing the placement of the cover plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the lifting device involved in one embodiment of the present utility model.

[0017] Figure 2 This is a partial structural schematic diagram of the lifting device involved in one embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the winch and grippers of a lifting device involved in one embodiment of the present invention.

[0019] Figure 4 This is a side view of a lifting device involved in one embodiment of the present invention.

[0020] Figure 5 This is a top view of the lifting device involved in one embodiment of the present invention. Detailed Implementation

[0021] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0022] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] This utility model discloses a lifting device for lifting the cover plate of an insulation pit. Please refer to [reference needed]. Figures 1 to 4In some embodiments, the lifting device includes a crossbeam 1, a winch 2, grippers 3, and a first drive motor 4. The crossbeam 1 has support legs 11 at both ends, which are arranged along the width of the insulation pit to support the entire lifting device above the pit, facilitating the lifting or lowering of the pit's cover. At least two winches 2 are provided, mounted on the crossbeam 1. Grippers 3 are connected to the winches 2 and correspondingly positioned below them, with the winches 2 controlling the vertical movement of the grippers 3. The first drive motor 4 is connected to the gripper 3, which drives the gripper 3 to rotate closer to or further away from the cover plate. When the cover plate needs to be lifted, the first drive motor 4 controls the grippers 3 on both sides of the crossbeam 1 to rotate closer to the cover plate and lock them at the bottom of the cover plate. The winch 2 drives the grippers 3 and the cover plate to move upward together, thereby opening the cover plate of the insulation pit. When the cover plate needs to be lowered, the winch 2 drives the grippers 3 and the cover plate to move downward together to the designated position. Then, the first drive motor 4 controls the grippers 3 to rotate away from the cover plate, releasing the cover plate and completing the placement of the cover plate.

[0025] Understandably, depending on the actual size of the cover plate of the insulation pit, the two winches 2 can be set on one side of the cross frame 1 or on both sides of the cross frame 1. When the winches 2 are set on one side of the cross frame 1, the distance between the winches 2 can be adjusted to expand the application scenarios of the lifting device.

[0026] Furthermore, in order to ensure that the cover plate can move relatively stably with the grippers during the lifting process, in some embodiments, four winches 2, grippers 3, and first drive motors 4 are provided, and two sets are provided on each side of the crossbeam 1. When lifting the cover plate, the grippers 3 can simultaneously grab the four corners of the cover plate, ensuring that the cover plate will not move relative to the grippers 3 as the lifting device moves, and thus fall out of the grippers 3, affecting the subsequent steel removal.

[0027] In some embodiments, the lifting device further includes a transmission component 5, which is installed between the first drive motor 4 and the gripper 3. The transmission component 5 is used to receive the driving force of the first drive motor 4 and convert the driving force into rotational force to drive the gripper 3 to rotate closer to or away from the cover plate. At the same time, it avoids the first drive motor 4 from directly driving the gripper 3, which would cause the gripper 3 to rotate excessively and damage the cover plate or the gripper 3 itself, resulting in increased costs.

[0028] Furthermore, in some embodiments, the transmission component 5 includes a reducer 51 and a worm gear 52. The reducer 51 is connected to the first drive motor 4, and the worm gear 52 is connected to the gripper 3 and the reducer 51. By providing the worm gear 52, the rotation direction of the first drive motor 4 can be different from the rotation direction of the gripper 3, and the design position possibilities of the gripper 3 and the first drive motor 4 are expanded while ensuring a certain transmission efficiency. Similarly, by providing the worm gear 52, the torque transmitted to the gripper 3 is increased. Therefore, the size of the gripper 3 can be set larger to ensure that the gripper 3 can stably hold the cover plate when clamping it, and the cover plate will not fall out between the grippers 3, thereby ensuring the effectiveness of the lifting device.

[0029] In practice, multiple insulation pits are typically arranged side-by-side. To facilitate the lifting device's rapid movement between these pits, some embodiments include a moving wheel 6 and a second drive motor 7. The moving wheel 6 is located below the support leg 11 and can move the entire lifting device, allowing it to easily reach the corresponding insulation pit for operation on the cover plate, thus reducing the labor costs associated with moving or transporting the lifting device. The second drive motor 7 is located at the edge of the support leg 11 and connected to the moving wheel 6. The second drive motor 7 drives the moving wheel 6 to move independently, further reducing the labor costs required for movement and avoiding potential safety hazards when operators move the lifting device, ensuring the safety of the entire steel removal process.

[0030] Understandably, in some embodiments, the lifting device also includes an anti-collision device 61. The anti-collision device 61 is arranged below the support leg 11 along the traveling direction of the moving wheel 6. It is used to push away any foreign objects that may be present in the traveling direction of the moving wheel 6, so as to prevent foreign objects from being rolled into the moving wheel 6 or the second drive motor 7 as the moving wheel 6 rolls, causing the moving wheel 6 to be stuck and unable to continue moving to the next insulation pit, causing the lifting device to malfunction and affecting the steel taking efficiency of the entire production line.

[0031] Furthermore, in order to automate the movement of the lifting device along the cover plate, in some embodiments, a laser rangefinder (not shown) is installed on the second drive motor 7, and a distance-measuring reflector (not shown) is installed on the edge of the cover plate. The operation of the second drive motor 7 is controlled by the laser rangefinder, which senses the distance of the distance-measuring reflector on the edge of the cover plate. When the distance sensed by the laser rangefinder gradually decreases until it reaches a certain value, the second drive motor 7 stops operating, the moving wheel 6 stops moving, and the lifting device stops at the corresponding edge of the cover plate, thereby realizing the directional movement and stopping of the entire lifting device.

[0032] Understandably, in order to enhance the overall stability of the lifting device and avoid the support leg 11 and the cross frame 1 from breaking due to insufficient rigidity of the cross frame 1 and the large mass of the winch 2, gripper 3 and other structures, in some embodiments, the support leg 11 and the cross frame 1 are welded together to further ensure the strength of the overall support structure of the lifting device and ensure the support effect of the cross frame 1 and the support leg 11.

[0033] In some embodiments, the lifting device further includes an electrical control device 8, which is mounted on any of the support legs 11 and connected to the first drive motor 4 and the winch 2. This device provides electrical control for the entire lifting device. Operators can control the movement of the entire lifting device and the clamping of the cover plate by controlling and adjusting the electrical control device 8. In case of an accident, the electrical control device 8 is equipped with an emergency button that can cut off the power with one click, ensuring the safety of the lifting device during use.

[0034] This utility model provides a heat preservation device, including a heat preservation pit and any of the aforementioned lifting devices. The lifting device is placed above the heat preservation pit for clamping, lifting, and placing the cover plate of the heat preservation pit. The heat preservation device also includes a moving track, which is set along the width direction of the heat preservation pit. The lifting device moves along the moving track, and the moving wheels 6 of the lifting device are always located on the moving track. On the one hand, the lifting device can move precisely along the predetermined moving track, improving the accuracy and efficiency of the operation and reducing the risk of the lifting device accidentally deviating from the path, thus preventing the lifting device from falling into the heat preservation pit and causing damage. On the other hand, the movement of the lifting device along the moving track further ensures the feasibility of automated movement of the lifting device, and can be controlled by the electrical control device 8, reducing the cost of manual operation.

[0035] Furthermore, in some embodiments, the insulation device also includes a steel-retrieving machine and a remote control device. The steel-retrieving machine is connected to the electrical control device 8 of the lifting device and moves together with the lifting device. Under the control of the electrical control device 8, after the lifting device clamps and lifts the cover plate of the insulation pit, the steel-retrieving machine removes the steel billet from the insulation pit. The lifting device then immediately places the cover plate back onto the insulation pit, further reducing heat loss in the insulation pit during the steel-retrieving process. The remote control device is communicatively connected to the electrical control device 8. The operator can control the electrical control device 8 through the remote control device, thereby controlling the entire insulation device. In this case, the operator can control multiple electrical control devices 8 through one remote control device, reducing the labor costs of operation and maintenance personnel.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lifting device for lifting the cover plate of an insulation pit, characterized in that, include: A cross frame, with supporting legs at both ends, is installed on the insulation pit along the width of the insulation pit; At least two winches are provided and are mounted on the crossbeam. The gripper is connected to the winch and is correspondingly positioned below the winch; A first drive motor is connected to the gripper, which drives the gripper to rotate as it moves closer to or away from the cover plate.

2. The lifting device as described in claim 1, characterized in that, Also includes: A transmission component is installed between the first drive motor and the gripper.

3. The lifting device as described in claim 2, characterized in that, The transmission component includes a reducer and a worm gear. The reducer is connected to the first drive motor, and the worm gear is connected to the gripper and the reducer.

4. The lifting device as described in claim 1, characterized in that, Also includes The movable wheels are located below the support legs; The second drive motor is located at the edge of the support leg and connected to the moving wheel.

5. The lifting device as described in claim 4, characterized in that, Also includes: A collision avoidance device is provided below the support leg along the direction of travel of the moving wheel.

6. The lifting device as described in claim 4, characterized in that, The second drive motor is equipped with a laser rangefinder, and the edge of the cover plate is equipped with a rangefinder reflector.

7. The lifting device as described in claim 1, characterized in that, The support leg and the cross frame are welded together.

8. The lifting device as described in claim 1, characterized in that, Also includes: An electrical control device is mounted on any of the support legs and connected to the first drive motor and the winch.

9. A heat preservation device, comprising a heat preservation pit and a lifting device as described in any one of claims 1-8, characterized in that, Also includes: The movable track is set along the width direction of the insulation pit; The lifting device moves along the moving track.

10. The heat preservation device as described in claim 9, characterized in that, Also includes: The steel take-up machine is connected to the electrical control device of the lifting device; A remote control device, which is communicatively connected to the electrical control device.

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