Self-starting stay wire flywheel type inerter

Abstract

The utility model discloses a self-starting stay wire flywheel type inerter which comprises a spiral guide rod, an upper end pull rope, a guide rod frame, a sliding joint, an upper end thrust bearing, a flywheel, a lower end thrust bearing, a spring, a tray and a lower end pull rope, a cross rod at the bottom of the guide rod frame is arranged in a groove in the top surface of the sliding joint; a pin shaft is arranged at the upper part of the sliding joint; the bottom of the sliding connector is supported on the top face of a flywheel through an upper end thrust bearing, and the flywheel is installed on a tray through a lower end thrust bearing and a spring. A bottom cross rod of the guide rod frame is fixedly connected with the upper end of the spiral guide rod; the lower end of the spiral guide rod sequentially penetrates through the sliding connector, the upper end thrust bearing, the flywheel and the lower end thrust bearing to be fixedly connected with the tray. The bottom of the tray is connected with the upper end of a lower end pull rope which is connected with a cross rod at the top of the guide rod frame; the lower end of the lower-end pull rope or the upper end of the upper-end pull rope is fixed; and the spiral guide rod is screwed with the flywheel. The damping device is simple in structure, low in manufacturing cost, small in machining difficulty and good in damping effect.

Description

Technical Field

[0001] This utility model belongs to the field of inertial container technology, specifically relating to a self-starting pull-wire flywheel inertial container. Background Technology

[0002] Building structural components may experience significant vibrations under strong winds and earthquakes, jeopardizing structural safety. Inertial devices with displacement amplification capabilities, such as ball screws, have been extensively studied. When combined with dampers, they can improve energy efficiency, reduce component vibration, and better achieve structural vibration reduction goals.

[0003] An inertial container has the function of amplifying displacement. An inertial capacitive system formed by combining an inertial container and a damper has greater internal deformation than the deformation at its installation location. When generating the same amplitude, it has significantly improved energy consumption efficiency compared to using a damper alone, achieving a better vibration reduction effect.

[0004] Common implementation mechanisms in existing inertial navigation systems include rack and pinion mechanisms, ball screw mechanisms, and planetary gear mechanisms. These inertial navigation systems all face the problem of high friction between rigid components, and the parts require high-precision machining processes, resulting in high machining difficulty and thus increasing the overall manufacturing cost. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a self-starting cable flywheel inertial container with simple structure, low manufacturing cost, easy processing, and good vibration reduction effect.

[0006] The technical solution adopted by this utility model is: a self-starting pull-wire flywheel inertia container, including a spiral guide rod, an upper pull rope, a guide rod frame, a sliding joint, an upper thrust bearing, a flywheel, a lower thrust bearing, a spring, a tray, and a lower pull rope; the guide rod frame is a square frame formed by four rods connected together; the sliding joint is a columnar structure with a through hole in the center; the guide rod frame is located in a vertical plane, and the crossbar at the bottom of the guide rod frame is placed in a groove on the top surface of the sliding joint; a pin is provided at the upper part of the sliding joint, and the pin passes through the groove to prevent the crossbar at the bottom of the guide rod frame from being pulled out of the groove. The sliding joint is disengaged from the groove; the bottom of the sliding joint is supported on the top surface of the flywheel by the upper thrust bearing, the bottom surface of the flywheel is supported on the lower thrust bearing, and the bottom surface of the lower thrust bearing is mounted on the tray by a spring; the bottom crossbar of the guide rod frame is fixedly connected to the upper end of the spiral guide rod; the lower end of the spiral guide rod passes through the sliding joint, the upper thrust bearing, the flywheel, and the lower thrust bearing in sequence and is fixedly connected to the tray; the bottom of the tray is connected to the upper end of the lower pull rope, and the upper pull rope is connected to the crossbar at the top of the guide rod frame; the lower end of the lower pull rope or the upper end of the upper pull rope is fixed; the spiral guide rod is screwed to the flywheel.

[0007] Furthermore, the spiral guide rod includes a hollow round rod and two spiral blades disposed on the side of the hollow round rod.

[0008] Furthermore, a guide rod hole is provided at the center of the flywheel. The guide rod hole is a through hole, which includes a round hole portion that mates with the hollow round rod and two square hole portions that mate with the two helical blades respectively. The round hole portion is connected to the two square hole portions. The helical guide rod mates with the guide rod hole.

[0009] Furthermore, the upper end of the upper pull rope is connected to the upper pull ring; the lower end of the lower pull rope is connected to the lower pull ring, and the upper or lower pull ring is fixed.

[0010] Furthermore, the bottom crossbar of the guide rod frame is set horizontally.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention has a simple structure and low manufacturing cost. It eliminates the need for high-precision components such as gears, racks, and ball screws, making processing easier and further reducing manufacturing costs. The invention employs a helical guide rod and flywheel structure. The inertial effect generated by the flywheel's rotational inertia is far greater than the inertial effect of its physical mass. Therefore, this invention can generate a large inertial force with a relatively small physical mass, achieving an inertial enhancement effect and providing excellent vibration reduction. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention.

[0014] Figure 2 This is a structural diagram of the sliding joint of this utility model.

[0015] Figure 3 This is a structural diagram of the flywheel of this utility model.

[0016] Figure 4 This is a structural diagram of the spiral guide rod of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1-4 As shown, this utility model includes a spiral guide rod 10, an upper pull ring 1, an upper pull rope 2, a guide rod frame 3, a sliding joint 5, an upper thrust bearing 6, a flywheel 7, a lower thrust bearing 8, a spring 9, a tray 12, a lower pull rope 13, and a lower pull ring 11. The guide rod frame 3 is a square frame formed by four rods connected together. The sliding joint 5 is a columnar structure with a through hole 51 in the center, which can be a cylinder or a columnar structure with a polygonal cross-section. The spiral guide rod 10 includes a hollow round rod 101 and two spiral blades 102 disposed on the side of the hollow round rod.

[0019] The guide rod frame 3 is located in a vertical plane. The horizontal bar at the bottom of the guide rod frame 3 is horizontally positioned and placed in the groove 52 on the top surface of the sliding joint 5. The groove 52 is located directly above and communicates with the through hole 51. A pin 4 is provided at the upper part of the sliding joint 5. The pin 4 passes through the groove 52 and prevents the bottom horizontal bar of the guide rod frame 3 from coming out of the groove 52. The bottom of the sliding joint 5 is supported on the top surface of the flywheel 7 by the upper thrust bearing 6. The bottom surface of the flywheel 7 is supported on the lower thrust bearing 8. The bottom surface of the lower thrust bearing 8 is mounted on the tray 12 by two springs 9.

[0020] The crossbar at the bottom of the guide rod frame 3 is fixedly connected to the upper end of the spiral guide rod 10. The lower end of the spiral guide rod 10 passes through the sliding joint 5, the upper thrust bearing 6, the flywheel 7, and the lower thrust bearing 8 in sequence and is fixedly connected to the tray 12. The bottom of the tray 12 is connected to the upper end of the lower pull rope, and the lower end of the lower pull rope is connected to the lower pull ring 11. The upper pull ring 1 is connected to the upper end of the upper pull rope 2, and the lower end of the upper pull rope 2 is connected to the crossbar at the top of the guide rod frame 3. The upper pull ring 1 or the lower pull ring 11 is fixed. The spiral guide rod 10 is screwed to the flywheel 7. The flywheel 7 has a guide rod hole 71 at its center. The guide rod hole 71 is a through hole and includes a round hole portion that mates with the hollow round rod and two square hole portions that mate with the two spiral blades respectively. The round hole portion communicates with the two square hole portions. The spiral guide rod 10 mates with the guide rod hole 71 to achieve the screw connection between the spiral guide rod 10 and the guide rod hole 71.

[0021] When using this utility model:

[0022] The relative displacement between the flywheel 7 and the helical guide rod 10 causes the flywheel to generate initial kinetic energy.

[0023] When the lower pull ring 11 is fixed: the sliding joint 5 will not be displaced vertically, the upper pull ring 1 will be displaced upward, pulling the upper pull rope 2 upward. The guide rod frame 3 connected to the upper pull rope 2 will slide upward in the groove 52 of the sliding joint 5. The spiral guide rod 10 will pass upward through the guide rod hole 71 of the flywheel 7. At this time, the flywheel 7 and the spiral guide rod 10 will be displaced relative to each other, driving the flywheel 7 to rotate initially.

[0024] The tray 12 and spring 9 rotate and move upward until spring 9 contacts the lower thrust bearing 8. The entire self-starting pull-wire flywheel inertial container rotates together, and the upper pull rope 2 and the lower pull rope 13 twist and entangle.

[0025] When the upper pull ring 1 is fixed: the lower pull ring 11 is displaced downwards, pulling the lower pull rope 13 downwards. The force on the pull rope is transmitted to the sliding joint 5 through the pin 4. The force on the sliding joint 5 is then transmitted to the flywheel 7 through the upper thrust bearing 6, applying downward pressure to the flywheel 7. At this time, the spiral guide rod 10 is stationary, and the flywheel 7 rotates downwards along the spiral guide rod 10.

[0026] After the flywheel 7 starts to rotate, it no longer has relative displacement with the spiral guide rod 10. The flywheel 7 and the sliding joint 5 rotate as a whole, and the energy is stored in the form of kinetic energy. At this time, the upper pull rope 2 immediately begins to twist and wind into a spiral straight rod, realizing the conversion of the kinetic energy of the flywheel 7 into the strain energy of the pull rope. When the lower pull ring 11 is subjected to tension again, the upper pull rope 2 begins to unwind, returning from the twisted and wound state to the relaxed state. At this time, the strain energy of the upper pull rope 2 is converted into the kinetic energy of the flywheel 7, and the flywheel 7 rotates in the opposite direction, completing a complete motion cycle.

Claims

1. A self-starting cable-operated flywheel inertial container, characterized in that: The system includes a spiral guide rod, an upper pull rope, a guide rod frame, a sliding joint, an upper thrust bearing, a flywheel, a lower thrust bearing, a spring, a tray, and a lower pull rope. The guide rod frame is a square frame composed of four connected rods. The sliding joint is a columnar structure with a central through hole. The guide rod frame is located in a vertical plane, and the crossbar at the bottom of the guide rod frame is placed in a groove on the top surface of the sliding joint. A pin is provided at the top of the sliding joint, passing through the groove to prevent the crossbar at the bottom of the guide rod frame from coming out of the groove. The bottom of the sliding joint... The flywheel is supported on its top surface by an upper thrust bearing, and the flywheel bottom surface is supported on a lower thrust bearing. The bottom surface of the lower thrust bearing is mounted on a tray via a spring. The bottom crossbar of the guide rod frame is fixedly connected to the upper end of the spiral guide rod. The lower end of the spiral guide rod passes through a sliding joint, the upper thrust bearing, the flywheel, and the lower thrust bearing in sequence and is fixedly connected to the tray. The bottom of the tray is connected to the upper end of the lower pull rope, and the upper pull rope is connected to the crossbar at the top of the guide rod frame. The lower end of the lower pull rope or the upper end of the upper pull rope is fixed. The spiral guide rod is screwed to the flywheel.

2. The self-starting pull-wire flywheel inertial container according to claim 1, characterized in that: The spiral guide rod includes a hollow round rod and two spiral blades disposed on the side of the hollow round rod.

3. The self-starting pull-wire flywheel inertial container according to claim 1, characterized in that: The flywheel has a guide rod hole at its center. The guide rod hole is a through hole and includes a round hole portion that mates with the hollow round rod and two square hole portions that mate with the two helical blades respectively. The round hole portion is connected to the two square hole portions. The helical guide rod mates with the guide rod hole.

4. The self-starting pull-wire flywheel inertial container according to claim 1, characterized in that: The upper end of the upper pull rope is connected to the upper pull ring; the lower end of the lower pull rope is connected to the lower pull ring, and the upper or lower pull ring is fixed.

5. The self-starting pull-wire flywheel inertial container according to claim 1, characterized in that: The bottom crossbar of the guide rod frame is set horizontally.

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