A medium plate loading and lifting platform

Abstract

The utility model relates to a medium plate feeding lifting platform, including the base installed in the foundation pit, the lifting oil cylinder installed on the base, the feeding platform connected with the upper end of the lifting oil cylinder and the guide assembly ensuring the up and down movement of the feeding platform along the linear direction, characterized by: the guide assembly is arranged at the four corners of the feeding platform, including the guide seat fixedly installed on the base, the guide post is installed in the center guide sleeve of the guide seat, and the upper end of the guide post is fixedly connected with the feeding platform. The utility model ensures the smooth operation of the feeding lifting platform in the lifting process, effectively reduces the extension length of the hydraulic cylinder rod by the flexible selection and replacement of the hydraulic cylinder model under the premise of not sacrificing the highest position of the lifting platform. The innovative design greatly reduces the failure rate of the equipment, saves a large amount of spare part replacement cost and time cost for enterprises, and significantly improves the economy and reliability of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of technical transformation of loading platform for sheet metal production line, and particularly relates to a lifting platform for loading medium and heavy plates. Background Technology

[0002] In the steel production process, the loading platform for medium and heavy plates plays a crucial role in supporting and transferring slab stacks. This platform is driven by hydraulic cylinders to lift and lower itself. Once raised to a predetermined height, a pusher smoothly transfers the steel billets via a pusher slide to the loading roller conveyor, thus completing the slab loading process. The structure of the loading platform typically includes key components such as a stack lifting frame, guide wheels, supports, and lifting hydraulic cylinders. Its overall structure is shown in the simplified diagram. Figure 1 As shown. However, in actual use, the original lifting mechanism design had some significant problems. First, the guiding function of the lifting mechanism was mainly undertaken by the guide wheels and the pallet lifting frame. However, due to the heavy load of the steel billets, the high-temperature environment, and the accumulation of iron oxide scale, the guide wheels frequently seized. This not only caused the lifting frame to skew and jam during lifting, but in severe cases, it could even cause the connection between the lifting frame and the loading platform to break and detach, leading to equipment downtime and seriously affecting production. Second, the height of the pallet lifting frame in the original design was set too long, which required the hydraulic cylinder to extend too far during lifting. Under poor guidance, the cylinder rod of the hydraulic cylinder was prone to deformation, leading to oil leakage and damage to the hydraulic cylinder. This not only increased the equipment failure rate but also resulted in high spare parts replacement costs and long maintenance downtime.

[0003] Therefore, this utility model is designed to improve upon existing technology by providing a guide wheel for a medium-thick plate loading and lifting platform that ensures stable operation of the loading platform during lifting. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a lifting platform for loading medium and heavy plates.

[0005] This utility model is implemented as follows: a medium-thick plate loading lifting platform includes a base installed in a foundation pit, a lifting cylinder installed on the base, a loading platform connected to the upper end of the lifting cylinder, and a guide component to ensure that the loading platform moves up and down in a straight line. The guide component is characterized in that: the guide component is set at the four corners of the loading platform, including a guide seat fixedly installed on the base, a guide post installed in the central guide sleeve of the guide seat, and the upper end of the guide post is fixedly connected to the loading platform.

[0006] More preferably, the two ends of the central guide sleeve are provided with copper sleeves.

[0007] More preferably, one end of the copper sleeve is provided with a flange.

[0008] More preferably, a flexible dust cover is provided between the upper end of the central guide sleeve and the lower end of the feeding platform.

[0009] In a further preferred embodiment, an auxiliary pit is provided at the position of the hydraulic cylinder, which is lower than the lower surface of the base, and a support seat is installed in the auxiliary pit.

[0010] More preferably, the feeding platform is provided with guide post mounting holes corresponding to the guide post positions, the upper end of the guide post extends out of the guide post mounting holes, and a guide post fixing plate is provided in the guide post mounting holes. The outer diameter of the guide post fixing plate is larger than the cross-sectional outer diameter of the end of the guide post, and it is fixed by fasteners; the upper surface of the fixing plate is lower than the upper surface of the feeding platform.

[0011] The advantages and technical effects of this utility model are as follows: Through a series of innovative designs, this utility model significantly improves the overall performance of the medium-thick plate loading platform. Specifically, this utility model adopts a design in which four guide columns cooperate with the copper sleeve installed inside the guide seat. This structure provides stable support and guidance during the lifting and lowering process of the hydraulic cylinder, ensuring the smooth operation of the entire system and effectively preventing shaking. At the same time, dustproof sealing covers are designed at the hydraulic cylinder and guide column positions. This measure effectively prevents the intrusion of debris such as iron oxide scale, reducing wear and seizure caused by debris and extending the service life of the equipment. Furthermore, this utility model optimizes the lifting stroke through a novel structural design. While meeting usage requirements, the lifting stroke is shortened from the original 1330mm to 380mm. This change significantly reduces the extension length of the hydraulic cylinder rod. The reduction in the extension length of the cylinder rod not only improves the stability of the hydraulic cylinder when in the upper position but also significantly enhances the hydraulic cylinder's resistance to lateral impacts, further improving the reliability and safety of the equipment. In summary, this invention effectively solves the problems of unstable guidance, wear and seizure, and easy deformation of hydraulic cylinder rods in the original equipment by optimizing the guide structure and lifting stroke. The new design makes the loading platform for medium and heavy plates more stable and reliable during the lifting process, improves the positioning accuracy and working efficiency of the equipment, and reduces maintenance costs and the risk of downtime due to malfunctions. The implementation of this invention provides a strong guarantee for the smooth operation of medium and heavy plate production lines and has significant technical benefits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the base structure of this utility model.

[0013] In the diagram: 1. Base; 21. Pit; 3. Lifting cylinder; 4. Feeding platform; 5. Guide assembly; 51. Guide seat; 52. Central guide sleeve; 53. Guide post; 54. Copper sleeve; 55. Flange; 56. Flexible dust cover; 22. Auxiliary pit; 23. Support seat; 41. Guide post mounting hole; 42. Guide post fixing plate. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0015] Please see Figure 1 and Figure 2 A medium-thick plate loading and unloading platform includes a base 1 installed in a pit 21, which provides a stable support foundation and reduces the space occupied by the equipment. This helps optimize workshop layout and improve space utilization for large equipment like medium-thick plate loading platforms. The pit also provides some protection for the equipment, reducing the impact of the external environment. A lifting cylinder 3 is installed on the base; a loading platform 4 is connected to the upper end of the lifting cylinder, ensuring that the driving force of the lifting cylinder is directly and efficiently transmitted to the loading platform. This connection method reduces the number of transmission components, simplifies the structure, improves transmission efficiency, and reduces the risk of equipment downtime due to component wear or failure. A guide assembly 5 ensures the loading platform moves vertically in a straight line. The guide assembly is located at the four corners of the loading platform and includes a guide seat 51 fixedly installed on the base. A guide post 53 is installed in the central guide sleeve 52 of the guide seat, and the upper end of the guide post is fixedly connected to the loading platform. The guide component in this invention is key to solving the guide wheel lock-up problem in the original design. Through the precise guidance of the guide component, the loading platform is ensured to move vertically in a straight line during lifting, avoiding instability such as skewing or shaking. This improves the stability and reliability of the equipment, guaranteeing the positioning accuracy and working efficiency of the loading platform.

[0016] More preferably, the central guide sleeve is provided with copper sleeves 54 at both ends. The copper sleeves at both ends of the central guide sleeve reduce friction and wear, improve guiding accuracy, enhance system stability, and effectively prevent seizing caused by foreign matter.

[0017] More preferably, one end of the copper sleeve is provided with a flange 55. The flange at one end of the copper sleeve facilitates connection and fixation, enhances structural stability, and also facilitates maintenance and replacement, improving the flexibility and reliability of equipment use.

[0018] Preferably, a flexible dust cover 56 is provided between the upper end of the central guide sleeve and the lower end of the feeding platform. This effectively blocks debris, protects the internal structure, reduces wear, and extends the service life of the equipment.

[0019] In a further preferred embodiment, an auxiliary pit 22, lower than the lower surface of the base, is provided at the position corresponding to the hydraulic cylinder, and a support seat 23 is installed in the auxiliary pit. This structure enhances the stability of the hydraulic cylinder, provides additional support, improves the overall reliability and durability of the equipment, and effectively ensures the smooth operation of the equipment.

[0020] Preferably, the loading platform 4 has guide post mounting holes 41 corresponding to the guide post positions. The upper end of the guide post extends out of the guide post mounting holes, and a guide post fixing plate 42 is provided inside the guide post mounting holes to ensure a stable connection between the guide post and the loading platform. After connection, welding is performed. The outer diameter of the guide post fixing plate is larger than the cross-sectional outer diameter of the guide post end and is fixed by fasteners. This provides a larger contact area and stronger fixing force, enhancing the stability of the structure. The upper surface of the fixing plate is lower than the upper surface of the loading platform to avoid interference and ensure the flatness and normal operation of the loading platform.

[0021] In summary, this invention ensures the stable operation of the loading platform during lifting. Furthermore, without sacrificing the platform's highest position, it effectively reduces the extension length of the hydraulic cylinder rod by flexibly selecting and changing the hydraulic cylinder model. This innovative design significantly reduces the equipment's failure rate, saving companies substantial spare parts replacement costs and time, and significantly improving the equipment's economy and reliability.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medium-thick plate loading lifting platform, comprising a base installed in a foundation pit, a lifting cylinder installed on the base; a loading platform connected to the upper end of the lifting cylinder, and a guide assembly for ensuring the loading platform moves up and down in a straight line, characterized in that: The guide assembly is located at the four corners of the loading platform, including a guide seat fixedly installed on the base. A guide post is installed in the central guide sleeve of the guide seat, and the upper end of the guide post is fixedly connected to the loading platform.

2. The medium-thick plate loading lifting platform according to claim 1, characterized in that: The central guide sleeve is provided with copper sleeves at both ends.

3. The medium-thick plate loading lifting platform according to claim 2, characterized in that: A flange is provided at one end of the copper sleeve.

4. The medium-thick plate loading lifting platform according to claim 1, characterized in that: A flexible dust cover is provided between the upper end of the central guide sleeve and the lower end of the feeding platform.

5. The medium-thick plate loading lifting platform according to claim 1, characterized in that: An auxiliary pit is provided at the position of the hydraulic cylinder, which is lower than the lower surface of the base, and a support seat is installed in the auxiliary pit.

6. The medium-thick plate loading lifting platform according to claim 1, characterized in that: The feeding platform is provided with guide post mounting holes corresponding to the guide post positions. The upper end of the guide post extends out of the guide post mounting holes. A guide post fixing plate is provided in the guide post mounting holes. The outer diameter of the guide post fixing plate is larger than the cross-sectional outer diameter of the end of the guide post and is fixed by fasteners. The upper surface of the fixing plate is lower than the upper surface of the feeding platform.

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