A drum fall arrestor based on inclined plane force conversion

Abstract

This invention relates to the field of roll winding equipment technology, specifically disclosing a roll fall prevention device based on inclined plane force conversion. The device includes a main body of the winding equipment, with a connecting end embedded in the outer wall of the main body, and a roll fixedly installed at the front end of the connecting end. A support rod is fixedly installed on one side of the connecting end on the outer wall of the main body. This invention achieves stable support after the rolls are connected, eliminating the risk of roll fall due to main cylinder failure. Utilizing the inclined plane force conversion and amplification characteristics of the wedge block, it converts horizontal thrust into vertical lifting force, enabling a low-power drive cylinder to bear the full weight of the roll and the roll material. This avoids the bulkiness and high cost of large cylinders, overcomes the bottleneck of heavy-load lifting with small power sources, and balances the needs for lightweight and compact equipment with high reliability for emergency support. It improves adaptability and economy. The sliding engagement structure ensures no deviation in lifting adjustment and stable performance, achieving comprehensive safety upgrades, power optimization, and structural efficiency improvements.

Description

Technical Field

[0001] This invention relates to the field of roll winding equipment technology, and in particular to a roll fall prevention device based on inclined plane force conversion. Background Technology

[0002] Roll winding equipment is an automated device that neatly, uniformly, and controllably winds continuous flexible rolls (such as films, paper, fabrics, metal foils, non-woven fabrics, wires and cables, etc.) into rolls after production, processing, or conveying. Its core function is to shape and store continuous materials for convenient subsequent warehousing, transportation, and secondary processing. It is the core finishing equipment in roll production lines and directly affects the winding quality and subsequent use of the rolls. As the core terminal equipment in continuous production lines for metal rolls, plastic films, and textile fabrics, the winding accuracy and operational stability of roll winding equipment directly affect product quality. In the existing technology, the design of a large drive cylinder directly connected to the drum is a common solution in the industry: the large drive cylinder is rigidly connected to the drum shaft end through the piston rod, which on the one hand undertakes the function of supporting and positioning the drum to ensure the coaxiality of the drum during the winding process; on the other hand, the extension and retraction movement of the drive cylinder realizes the lifting, lowering and changing of the drum and other actions to meet the cycle time requirements of continuous production. In actual winding operations, the drum must simultaneously bear the weight of the wound material and its own metal weight. Overload can easily lead to various failures, such as piston rod breakage, pressure drop due to damaged drive cylinder seals, cylinder cracking, and malfunctions caused by control circuit failures. Once such failures occur, the drum will lose its sole support and fall, causing serious damage to core components such as the drum and drive cylinder, and potentially damaging surrounding equipment and injuring on-site personnel, leading to major safety accidents. At the same time, the formed material will suffer severe deformation, wrinkles, and even defects such as tearing and edge damage due to the violent impact, resulting in the complete scrapping of the entire roll. The production line will be forced to shut down completely, and raw materials from upstream processes cannot be wound in time, leading to the accumulation of waste materials and a significant reduction in overall production efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a drum anti-fall device based on inclined plane force conversion, which can eliminate the risk of drum falling due to main cylinder failure. Relying on the inclined plane force conversion and amplification characteristics of the wedge block, the horizontal thrust is converted into vertical lifting force, enabling a low-power drive cylinder to bear the full weight of the drum and the roll material. This avoids the bulky equipment and high cost caused by large cylinders, and breaks through the bottleneck of heavy-load lifting with small power sources. It takes into account the needs of lightweight and compact equipment and high reliability of emergency support, improves adaptability and economy. The sliding engagement structure ensures that the lifting adjustment is without deviation and the effect is stable. It comprehensively achieves safety upgrade, power optimization and structural efficiency improvement, thereby solving the problems mentioned in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a roll fall prevention device based on inclined plane force conversion, comprising a winding equipment body, a connecting end embedded in the outer wall of the winding equipment body, and a roll fixedly installed at the front end of the connecting end, a support rod fixedly installed on one side of the connecting end of the outer wall of the winding equipment body, and an assembly plate fixedly installed at one end of the support rod, a support mechanism for stabilizing and supporting the roll is provided on one side of the assembly plate, and a stabilizing mechanism for improving the stabilization effect is provided on one side of the support mechanism, and a lubrication mechanism for lubrication is provided below the stabilizing mechanism.

[0005] Preferably, the support mechanism includes a fixed base, which is fixedly installed at the bottom end of the assembly plate, and a drive cylinder for providing adjustment power is embedded at one end of the fixed base. A slide rail for providing guide and limit is fixedly installed inside the fixed base, and a slider is slidably connected to the top end of the slide rail.

[0006] Preferably, a wedge is fixedly installed at the top of the slider, and an abutment roller is slidably connected to the top of the wedge. A miniature support for supporting the drum is fixedly installed at the top of the abutment roller.

[0007] Preferably, a positioning rod for limiting and guiding is fixedly installed at one end of the wedge block, and an anti-slip pad for anti-slip effect is fixedly installed at the top of the miniature support.

[0008] Preferably, the stabilizing mechanism includes a stabilizing frame, which is fixedly installed on one side of the slide rail at the top of the fixed base. A storage tube is embedded inside the stabilizing frame, and a connecting rod for supporting the micro tray extends out from inside the storage tube. A connecting frame for docking with the micro tray is fixedly installed at the top of the connecting rod.

[0009] Preferably, a locking ring is fixedly installed on the outer wall of one end of the connecting rod that passes through the storage tube, and a locking groove is provided on the inner wall of the storage tube for sliding engagement with the locking ring.

[0010] Preferably, a perforated plate for the flow of magnetorheological fluid is fixedly installed at the bottom inside the storage tube, and an abutment plate is slidably connected below the perforated plate inside the storage tube. A magnetostrictive spring is fixedly installed at the bottom end of the abutment plate. A shielding shell for shielding the magnetic field is sleeved on the outside of the storage tube, and an electromagnetic coil is embedded inside the shielding shell.

[0011] Preferably, the lubrication mechanism includes a movable block, which is movably connected inside the wedge block, and the movable block protrudes from the wedge block and is fixedly installed with an elastic block for elastic expansion and contraction, and a locking block is fixedly installed at one end of the elastic block.

[0012] Preferably, a pressing block for providing pressing pressure is fixedly installed on the outer wall of the locking block, and a sponge block for absorbing lubricating oil is fixedly installed on one side of the pressing block.

[0013] Preferably, a drip tube for guiding the flow of lubricating oil is fixedly installed at the bottom end of the wedge corresponding to the position of the sponge block, and a sealing head is threadedly connected to one side of the top end of the wedge.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention can achieve stable support after the drum is connected, which can eliminate the risk of the drum falling due to the failure of the main cylinder. Relying on the force conversion and amplification characteristics of the wedge block inclined surface, the horizontal thrust is converted into vertical lifting force, so that the low-power drive cylinder can carry the full weight of the drum and the roll material. This avoids the bulky equipment and high cost caused by large cylinders, and breaks through the bottleneck of heavy-load lifting with small power source. It takes into account the needs of lightweight and compact equipment and high reliability of emergency support, improves adaptability and economy. The sliding locking structure ensures that the lifting adjustment is without deviation and the effect is stable, and achieves comprehensive safety upgrade, power optimization and structural efficiency improvement. 2. This invention, through the cooperation of a stabilizing frame, a storage cylinder, a connecting rod, a connecting bracket, a locking ring, and a locking groove, maintains stability during the adjustment and support of the drum height without the risk of component detachment or loosening, effectively avoiding the risk of misalignment. Simultaneously, during telescopic adjustment, the magnetorheological fluid inside the storage cylinder is squeezed, pushing the contact plate through the perforated plate to compress the magnetostrictive spring, effectively buffering and dissipating energy and reducing impact vibration, ensuring smooth and controllable adjustment. After adjustment, the electromagnetic coil inside the shielding shell is activated to generate magnetism, simultaneously acting on the magnetorheological fluid and the spring, collaboratively achieving adaptive adjustment of viscosity and stiffness in two dimensions, improving support stability and deformation resistance, simplifying operation, shortening adjustment time, adapting to the stable support requirements of large loads, preventing load misalignment and shaking, extending component life, and ensuring reliable equipment operation. 3. In this invention, when the wedge block slides along the slide rail for adjustment, the stabilizing frame squeezes the movable block and stretches the elastic block. The stretching driving force is transmitted to the pressing block via the locking block, squeezing the sponge block that absorbs lubricating oil. The lubricating oil is then discharged through the drip pipe under pressure. The drip pipe penetrates the slider, allowing oil to drip directly onto the slide rail, achieving simultaneous automatic lubrication during adjustment. This eliminates the need for manual lubrication and improves the automation level of the equipment. Only periodic removal of the sealing head is required to replenish the lubricating oil, making maintenance simple and efficient, lowering the operational threshold, ensuring stable equipment operation, and maintaining the equipment's adjustment accuracy. It also extends the service life of components and optimizes the overall user experience. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is an overall structural view of the present invention; Figure 2 This is a schematic diagram of the wedge block of the present invention; Figure 3 This is a schematic diagram of the structure of the stabilizer frame of the present invention; Figure 4 This is a schematic diagram of the locking ring structure of the present invention; Figure 5 This is a schematic diagram of the structure of the active block of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Main body of the winding equipment; 2. Connecting end; 3. Drum; 4. Support rod; 5. Assembly plate; 6. Loading mechanism; 601. Fixed base; 602. Drive cylinder; 603. Slide rail; 604. Slider; 605. Wedge; 606. Abutment roller; 607. Miniature support; 608. Positioning rod; 609. Anti-slip mat; 7. Stabilizing mechanism; 701. Stabilizing frame; 702. Storage drum; 703 704. Connecting rod; 705. Connecting frame; 706. Engaging ring; 707. Engaging groove; 708. Hollow plate; 709. Contact plate; 710. Magnetostrictive spring; 711. Shielding shell; 712. Electromagnetic coil; 8. Lubrication mechanism; 801. Movable block; 802. Elastic block; 803. Engaging block; 804. Pressing block; 805. Sponge block; 806. Drip tube; 807. Sealing head. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a technical solution: Please see Figures 1 to 3A drum anti-fall device based on inclined plane force conversion includes a winding equipment body 1. A connecting end 2 is embedded in the outer wall of the winding equipment body 1. A drum 3 is fixedly installed at the front end of the connecting end 2. A support rod 4 is fixedly installed on one side of the connecting end 2 on the outer wall of the winding equipment body 1. An assembly plate 5 is fixedly installed at one end of the support rod 4. A support mechanism 6 for stabilizing and supporting the drum 3 is provided on one side of the assembly plate 5. A stabilizing mechanism 7 for improving the stabilization effect is provided on one side of the support mechanism 6. A lubrication mechanism 8 for lubrication is provided below the stabilizing mechanism 7. The support mechanism 6 includes a fixed seat 601, which is fixedly installed on the assembly plate. At the bottom of 5, a drive cylinder 602 for providing adjustment power is embedded in one end of the fixed base 601. A slide rail 603 for providing guidance and limiting is fixedly installed inside the lower part of the fixed base 601. A slider 604 is slidably connected to the top of the slide rail 603. A wedge 605 is fixedly installed to the top of the slider 604. An abutment roller 606 is slidably connected to the top of the wedge 605. A miniature support 607 for supporting the drum 3 is fixedly installed to the top of the abutment roller 606. A positioning rod 608 for limiting and guiding is fixedly installed to one end of the wedge 605. An anti-slip pad 609 for anti-slip effect is fixedly installed to the top of the miniature support 607.

[0020] By adopting the above technical solution, after the drum 3 is connected to the main body 1 of the winding equipment via the connecting end 2, the miniature support 607 immediately provides support. Combined with the anti-slip pad 609 for enhanced anti-slip protection, and with the support and positioning of the support rod 4, the assembly plate 5 securely locks the fixed seat 601, laying a solid structural foundation for subsequent lifting operations. After the drive cylinder 602 is activated, the drive wedge 605 slides smoothly along the slide rail 603 with the help of the slider 604, simultaneously driving the positioning rod 608 to slide along the fixed seat 601, improving the stability and smoothness of the wedge 605 adjustment process. Relying on the inclined plane force conversion characteristics, the wedge 605 contacts the roller 606 during sliding and lifts the miniature support 607 to support the drum 3, achieving a firm lift for the drum 3. This structurally eliminates the risk of the drum 3 falling due to main cylinder failure, precisely filling the safety shortcomings of the original design. Simultaneously, with the help of the wedge 605... The force amplification effect of the inclined plane can efficiently convert the horizontal thrust of the drive cylinder 602 into a vertical lifting force, enabling the low-power drive cylinder 602 to bear the entire weight of the drum 3 and the roll material. This avoids the problem of bulky equipment and high cost associated with large cylinders, and breaks through the technical bottleneck that small power sources cannot achieve heavy-load lifting. While meeting the requirements of lightweight and compact equipment design, it ensures high reliability of emergency support and greatly improves equipment adaptability and economy. In addition, the micro support 607 and the mounting plate 5 adopt a sliding engagement structure design, which not only ensures the stability of their relative positions during lifting adjustment and avoids structural displacement affecting the lifting effect, but also simplifies the installation, debugging and subsequent maintenance process, further improving the overall operating efficiency of the equipment. This achieves multiple beneficial effects in all aspects, including safety protection upgrade, power adaptation optimization and structural adaptation efficiency improvement.

[0021] Specifically, such as Figure 3 and Figure 4 As shown, the stabilizing mechanism 7 includes a stabilizing frame 701, which is fixedly installed on one side of the top slide rail 603 of the fixed base 601. A storage tube 702 is embedded inside the stabilizing frame 701. A connecting rod 703 for supporting a miniature tray 607 extends from inside the storage tube 702. A connecting frame 704 for docking with the miniature tray 607 is fixedly installed at the top of the connecting rod 703. A locking ring 705 is fixedly installed on the outer wall of the end of the connecting rod 703 that penetrates into the storage tube 702. The inner wall of the storage cylinder 702 is provided with a locking groove 706 for sliding engagement with the locking ring 705. A perforated plate 707 for the flow of magnetorheological fluid is fixedly installed at the bottom inside the storage cylinder 702. A contact plate 708 is slidably connected below the perforated plate 707 inside the storage cylinder 702. A magnetostrictive spring 709 is fixedly installed at the bottom end of the contact plate 708. A shielding shell 710 is provided on the outside of the storage cylinder 702 to shield the magnetic field. An electromagnetic coil 711 is embedded inside the shielding shell 710.

[0022] By adopting the above technical solution, the storage cylinder 702 fixed by the stabilizer 701 and the connecting rod 703 form a telescopic rod structure. Combined with the sliding engagement design of the locking ring 705 and the locking groove 706, reliable positioning can be achieved, preventing component detachment and loosening. The connecting rod 703 is fixed to the miniature support 607 by bolts and the connecting frame 704, maintaining a stable posture throughout the entire process of adjusting the height of the miniature support 607 to support the drum 3, effectively avoiding the risk of displacement. During telescopic adjustment, the connecting rod 703 squeezes the magnetorheological fluid inside the storage cylinder 702, driving the magnetorheological fluid to flow through the perforated plate 707 and push against the contact plate 708, thereby compressing the magnetostrictive spring 709, achieving efficient buffering and energy dissipation, and reducing the adjustment process. The shielding shell 710 is designed to withstand impacts and vibrations, ensuring smooth and controllable adjustment. Once adjusted, the electromagnetic coil 711 inside the shielding shell 710 is activated and generates a magnetic field, which acts simultaneously on the magnetorheological fluid and the magnetostrictive spring 709. The magnetorheological fluid quickly changes from a fluid state to a viscoelastic solid state, forming a rigid support base. The magnetostrictive spring 709 precisely matches the stiffness according to the magnetic field strength. The two work together to achieve adaptive adjustment in both viscosity and stiffness, significantly improving the overall support stability and resistance to deformation. This not only simplifies the adjustment process and shortens the adjustment time, but also adapts to the stable support requirements under heavy load conditions, effectively avoiding offset and swaying problems under load, extending the service life of components, and ensuring the reliability of equipment operation.

[0023] Specifically, such as Figure 3 and Figure 5As shown, the lubrication mechanism 8 includes a movable block 801, which is movably connected inside the wedge block 605. The movable block 801 extends out of the wedge block 605 and is fixedly installed with an elastic block 802 for elastic expansion and contraction. A locking block 803 is fixedly installed at one end of the elastic block 802. A pressing block 804 for providing pressing pressure is fixedly installed on the outer wall of the locking block 803. A sponge block 805 for absorbing lubricating oil is fixedly installed on one side of the pressing block 804. A drip tube 806 for guiding the flow of lubricating oil is fixedly installed at the bottom end of the wedge block 605 corresponding to the position of the sponge block 805. A sealing head 807 is threadedly connected to one side of the top end of the wedge block 605.

[0024] By adopting the above technical solution, when the wedge 605 slides along the slide rail 603 for adjustment, the stabilizer 701 squeezes the movable block 801 and stretches the elastic block 802. The stretching driving force of the elastic block 802 is transmitted to the pressing block 804 through the locking block 803, which applies pressure to the sponge block 805 that absorbs lubricating oil, so that the lubricating oil is squeezed out and discharged through the drip pipe 806. The drip pipe 806 passes through the slider 604 and can directly drip the lubricating oil onto the slide rail 603, allowing the equipment to automatically complete lubrication during adjustment operations, completely eliminating the need for manual lubrication and significantly improving the overall automation level. In daily operation, only the sealing head 807 needs to be removed periodically to replenish the lubricating oil, making the maintenance process simple and efficient and greatly reducing the maintenance threshold. Moreover, the locking and limiting design of the locking block 803 and the wedge 605 can effectively prevent the movable block 801 from disengaging, ensuring stable and reliable operation of the device, ensuring the adjustment accuracy of the equipment, extending the service life of the components, and further optimizing the overall user experience of the equipment.

[0025] Working principle: After the drum 3 is connected to the main body 1 of the winding equipment via the connecting end 2, it can be supported by the miniature support 607. The anti-slip pad 609 provides anti-slip protection. With the support and positioning of the support rod 4, the assembly plate 5 fixes the fixed seat 601. After the drive cylinder 602 is started, it drives the wedge 605 to slide smoothly along the slide rail 603 with the help of the slider 604. At the same time, the positioning rod 608 slides synchronously along the fixed seat 601, further improving the stability of the wedge 605 adjustment process. Through the conversion of inclined plane force, the wedge 605 slides against the roller 606 and lifts the miniature support 607 to support the drum 3, achieving stable lifting of the drum 3. The structural design completely avoids the risk of the drum 3 falling due to the failure of the main cylinder, filling the safety loopholes in the original design. At the same time, relying on the force amplification effect of the inclined surface of the wedge block 605, the horizontal thrust of the drive cylinder 602 can be efficiently converted into vertical lifting force, so that the low-power drive cylinder 602 can bear the total weight of the drum 3 and the roll material. This avoids the problem of bulky equipment and high cost caused by using a large cylinder, and solves the technical problem that a small power source cannot achieve heavy-load lifting. It takes into account both the need for lightweight equipment and the reliability of emergency support. In addition, the micro support 607 and the mounting plate 5 adopt a sliding engagement design, which can ensure the relative stability of the two during the adjustment process. The storage cylinder 702, fixed by the stabilizer 701, and the connecting rod 703 form a telescopic rod structure. Combined with the sliding engagement design of the locking ring 705 and the locking groove 706, this effectively prevents components from detaching or loosening. Simultaneously, the connecting rod 703 is fixed to the miniature support 607 by bolts via the connecting frame 704, maintaining stability during the up-and-down adjustment of the miniature support 607 to receive the reel 3, preventing displacement. During telescopic movement, the connecting rod 703 can compress the magnetorheological fluid inside the storage cylinder 702, allowing the fluid to pass through the perforated plate 70... 7. The flow and compression of the contact plate 708, in turn, compresses the magnetostrictive spring 709, which can play a role in buffering and dissipating energy during the adjustment process. After the adjustment is completed, the electromagnetic coil 711 inside the shielding shell 710 is activated to generate a magnetic field, which acts synchronously on the magnetorheological fluid and the magnetostrictive spring 709: the magnetorheological fluid changes from a fluid to a viscoelastic solid, and the magnetostrictive spring 709 changes its stiffness synchronously with the magnetic field strength. The two work together to achieve dual adjustment of viscosity and stiffness, significantly improving the overall support stability, thus adapting to high-load application scenarios. When the wedge 605 slides along the slide rail 603 for adjustment, the stabilizing frame 701 squeezes the movable block 801, causing the elastic block 802 to be stretched. The stretching driving force of the elastic block 802 drives the locking block 803 to pull the pressing block 804 to apply pressure to the sponge block 805, causing the sponge block 805, which has absorbed lubricating oil, to be squeezed out by the pressure. The lubricating oil is discharged through the drip pipe 806, which passes through the slider 604 and can drip onto the slide rail 603, achieving a self-lubricating effect during the adjustment process. No manual lubrication is required, further improving the overall automation level of the equipment. Daily maintenance only requires periodically removing the sealing head 807 to replenish the lubricating oil. Through the locking and limiting of the locking block 803 and the wedge 605, the movable block 801 can be effectively prevented from disengaging, ensuring the stable operation of the device.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drum anti-fall device based on inclined plane force conversion, comprising a winding equipment body (1), characterized in that: The outer wall of the main body (1) of the winding equipment is fitted with a connecting end (2), and a drum (3) is fixedly installed at the front end of the connecting end (2). A support rod (4) is fixedly installed on one side of the connecting end (2) of the main body (1) of the winding equipment, and an assembly plate (5) is fixedly installed at one end of the support rod (4). A support mechanism (6) for stabilizing and supporting the drum (3) is provided on one side of the assembly plate (5), and a stabilizing mechanism (7) for improving the stabilizing effect is provided on one side of the support mechanism (6). A lubrication mechanism (8) for lubrication is provided below the stabilizing mechanism (7).

2. The drum fall prevention device based on inclined plane force conversion according to claim 1, characterized in that: The support mechanism (6) includes a fixed seat (601), which is fixedly installed at the bottom of the assembly plate (5). A drive cylinder (602) for providing adjustment power is embedded at one end of the fixed seat (601). A slide rail (603) for providing guide limit is fixedly installed inside the fixed seat (601), and a slider (604) is slidably connected to the top of the slide rail (603).

3. The drum fall prevention device based on inclined plane force conversion according to claim 2, characterized in that: The top of the slider (604) is fixedly mounted with a wedge (605), and the top of the wedge (605) is slidably connected with an abutment roller (606). The top of the abutment roller (606) is fixedly mounted with a miniature support (607) for supporting the drum (3).

4. The drum fall prevention device based on inclined plane force conversion according to claim 3, characterized in that: One end of the wedge (605) is fixedly installed with a positioning rod (608) for limiting and guiding, and the top of the miniature support (607) is fixedly installed with an anti-slip pad (609) for anti-slip effect.

5. A drum fall prevention device based on inclined plane force conversion according to claim 1, characterized in that: The stabilizing mechanism (7) includes a stabilizing frame (701), which is fixedly installed on one side of the top slide rail (603) of the fixed base (601). A storage tube (702) is embedded inside the stabilizing frame (701). A connecting rod (703) for supporting the miniature tray (607) extends out from inside the storage tube (702), and a connecting frame (704) for docking with the miniature tray (607) is fixedly installed at the top of the connecting rod (703).

6. A drum fall arrestor based on inclined plane force conversion according to claim 5, characterized in that: The connecting rod (703) is inserted into the outer wall of the storage tube (702) and a locking ring (705) is fixedly installed thereon. The inner wall of the storage tube (702) is provided with a locking groove (706) for sliding engagement with the locking ring (705).

7. A drum fall prevention device based on inclined plane force conversion according to claim 5, characterized in that: The storage tube (702) has a perforated plate (707) for the flow of magnetorheological fluid fixedly installed at the bottom inside. A contact plate (708) is slidably connected to the bottom of the perforated plate (707) inside the storage tube (702). A magnetostrictive spring (709) is fixedly installed at the bottom of the contact plate (708). A shielding shell (710) for shielding the magnetic field is sleeved on the outside of the storage tube (702). An electromagnetic coil (711) is embedded inside the shielding shell (710).

8. A drum fall arrestor based on inclined plane force conversion according to claim 1, characterized in that: The lubrication mechanism (8) includes a movable block (801), which is movably connected inside the wedge block (605). The movable block (801) extends through the wedge block (605) and is fixedly installed with an elastic block (802) for elastic expansion and contraction. One end of the elastic block (802) is fixedly installed with a locking block (803).

9. A drum fall arrestor based on inclined plane force conversion according to claim 8, characterized in that: The outer wall of the locking block (803) is fixedly installed with a pressing block (804) for providing pressing pressure, and a sponge block (805) for absorbing lubricating oil is fixedly installed on one side of the pressing block (804).

10. A drum fall arrestor based on inclined plane force conversion according to claim 9, characterized in that: The wedge (605) is fixedly installed at the bottom end corresponding to the position of the sponge block (805) with a drip tube (806) for guiding the flow of lubricating oil, and a sealing head (807) is threadedly connected to one side of the top end of the wedge (605).

Images