Dual-energy-consumption eddy current damper

Abstract

The utility model relates to the field of structural shock absorption and isolation, and discloses a dual-energy-consumption eddy current damper which comprises a front pin head, a protective shell is fixedly connected to the outer wall of the front pin head, an oil cylinder is fixedly connected to the inner wall of the protective shell, a left lining is fixedly connected to the interior of the left side of the oil cylinder, and a right lining is fixedly connected to the interior of the right side of the oil cylinder. A left lining is fixedly connected to the inner portion of the left side of the oil cylinder, a right lining is fixedly connected to the inner portion of the right side of the oil cylinder, a threaded rod is in threaded connection to the inner portion of the oil cylinder, the outer wall of the threaded rod is in threaded connection to the inner portion of the left lining, and a piston rod is slidably connected to the inner portion of the front pin head. Pistons are fixedly connected to the outer walls of the upper and lower sides of the piston rod, and the upper surfaces of the pistons are slidably connected to the inner wall of the left side of the oil cylinder. According to the utility model, the protective shell slides due to the fact that the protective shell bears external impact, and the front pin head and the protective shell provide a closed environment, so that the purpose of generating viscous damping force is finally achieved, and the effect of filling up insufficient eddy current damping is achieved.

Description

Technical Field

[0001] The utility model relates to the field of structural vibration reduction and isolation, in particular to a double energy-consuming eddy current damper. Background Art

[0002] my country is a region where earthquakes and typhoons occur frequently. The traditional earthquake-resistant solution is to increase the cross-section of beams and columns to resist external forces. This solution is less economical and affects the use of building functions. Seismic mitigation technology often uses additional dampers or viscous energy dissipation to reduce earthquake effects and protect the main structure. Among them, eddy current dampers are widely used.

[0003] Existing eddy current dampers mitigate the impact on the damper through the eddy current damping force generated by the piston rod cutting the magnetic lines of force when the connecting pipe moves. However, existing eddy current dampers are relatively expensive and have limited energy consumption, which results in the damper's buffering effect being unable to meet the requirements of resisting geological disasters. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a dual energy dissipation eddy current damper, which aims to improve the problem that the existing eddy current damper is relatively expensive and has limited energy consumption, resulting in the damper's buffering effect failing to meet the requirements of resisting geological disasters.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A dual energy-dissipating eddy current damper comprises a front pin head, the outer wall of the front pin head is fixedly connected to a protective shell, the inner wall of the protective shell is fixedly connected to an oil cylinder, the left interior of the oil cylinder is fixedly connected to a left bushing, the right interior of the oil cylinder is fixedly connected to a right bushing, the internal thread of the oil cylinder is connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to the interior of the left bushing, the outer wall of the threaded rod is threadedly connected to the outer wall of the right bushing, the interior of the front pin head is slidably connected to a piston rod, the upper and lower outer walls of the piston rod are fixedly connected to a piston, the upper surface of the piston is slidably connected to the left inner wall of the oil cylinder, and the right inner wall of the oil cylinder is provided with a fixing component, which is used to fix a permanent magnet.

[0007] Preferably, the fixing assembly includes a connecting pipe, the outer wall of the connecting pipe is fixedly connected to the right inner wall of the oil cylinder, and the inner wall of the connecting pipe is fixedly connected to a magnet seat.

[0008] Preferably, the left inner wall of the piston rod is slidably connected to the lower surface of the left bushing, and the right outer wall of the piston rod is slidably connected to the lower surface of the right bushing.

[0009] Preferably, a copper ring is fixedly connected to the outer wall of the piston rod.

[0010] Preferably, a rear pin head is fixedly connected to the interior of the connecting pipe.

[0011] Preferably, the outer wall of the copper ring is arranged inside the rear pin head.

[0012] Preferably, a permanent magnet is fixedly connected to the upper surface of the magnet seat.

[0013] Preferably, the lower surface of the copper ring is slidably connected to the upper surface of the permanent magnet.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the protective shell is subjected to external impact to make the protective shell slide, and the front pin head and the protective shell provide a relatively closed environment, and the left bushing and the right bushing are added between the oil cylinder and the piston rod to support the piston rod, thereby finally achieving the purpose of generating viscous damping force, thereby achieving the effect of filling the insufficient eddy current damping.

[0016] 2. In the present invention, the copper ring cuts the magnetic flux lines generated by the permanent magnet and generates eddy current damping force when it slides, and the connecting tube and the rear pin head provide a closed space to avoid interference from the external magnetic field, thereby achieving the effect of alleviating impact.

[0017] 3. In the present invention, dual damping force can be generated by the sliding of the piston rod, which can generate a greater damping force under the same outer diameter, taking into account the dual needs of structure and architecture, and achieving the purpose of dual energy consumption, thereby achieving the effect of reducing the number or diameter of dampers under the same shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of a double energy dissipation eddy current damper proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the connecting pipe of a double energy dissipation eddy current damper proposed in the utility model.

[0020] Legend:

[0021] 1. Front pin; 2. Protective housing; 3. Piston rod; 4. Threaded rod; 5. Left bushing; 6. Cylinder; 7. Piston; 8. Right bushing; 9. Connecting pipe; 10. Rear pin; 11. Copper ring; 12. Magnet seat; 13. Permanent magnet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1 , the utility model provides an embodiment: a dual energy dissipation eddy current damper, including a front pin head 1, the outer wall of the front pin head 1 is fixedly connected to a protective shell 2, the inner wall of the protective shell 2 is fixedly connected to an oil cylinder 6, the left interior of the oil cylinder 6 is fixedly connected to a left bushing 5, the right interior of the oil cylinder 6 is fixedly connected to a right bushing 8, the inner part of the oil cylinder 6 is threadedly connected to a threaded rod 4, the outer wall of the threaded rod 4 is threadedly connected to the inside of the left bushing 5, and the outer wall of the threaded rod 4 is threadedly connected to the outer wall of the right bushing 8, the inner part of the front pin head 1 is slidably connected to a piston rod 3, the upper and lower outer walls of the piston rod 3 are fixedly connected to a piston 7, the upper surface of the piston 7 is slidably connected to the left inner wall of the oil cylinder 6, and the right inner wall of the oil cylinder 6 is provided with a fixing component, which is used to fix a permanent magnet 13;

[0024] Specifically, the protective shell 2 is resistant to external impacts and causes the protective shell 2 to slide, while the front pin head 1 and the protective shell 2 provide a relatively closed environment, and the left bushing 5 and the right bushing 8 are added between the oil cylinder 6 and the piston rod 3 to support the piston rod 3. When the protective shell 2 slides, it will drive the piston 7 to slide, and then the piston 7 pushes the silicone oil in the oil cylinder 6 to generate pressure, and the silicone oil flows, ultimately achieving the purpose of generating viscous damping force, thereby achieving the effect of filling the insufficient eddy current damping.

[0025] Reference Figure 1 The fixing assembly includes a connecting pipe 9, the outer wall of the connecting pipe 9 is fixedly connected to the right inner wall of the oil cylinder 6, and the inner wall of the connecting pipe 9 is fixedly connected to a magnet seat 12;

[0026] Specifically, the magnet base 12 ensures that the permanent magnet 13 does not move, thereby ensuring that the direction of the magnetic flux lines remains unchanged.

[0027] Reference Figure 1 and Figure 2 The left inner wall of the piston rod 3 is slidably connected to the lower surface of the left bushing 5, and the right outer wall of the piston rod 3 is slidably connected to the lower surface of the right bushing 8; the outer wall of the piston rod 3 is fixedly connected to the copper ring 11; the interior of the connecting tube 9 is fixedly connected to the rear pin head 10; the outer wall of the copper ring 11 is arranged inside the rear pin head 10; the upper surface of the magnet seat 12 is fixedly connected to the permanent magnet 13; the lower surface of the copper ring 11 is slidably connected to the upper surface of the permanent magnet 13;

[0028] Specifically, when the copper ring 11 slides, it will cut the magnetic flux lines generated by the permanent magnet 13 and generate eddy current damping force, while the connecting tube 9 and the rear pin head 10 provide a closed space to avoid interference from the external magnetic field, thereby achieving the effect of alleviating impact; when the device is impacted, the sliding of the single piston rod 3 can generate two damping forces of different properties. At the same outer diameter, the two damping forces of different properties constitute a larger damping force, thereby achieving the effect of reducing the number or diameter of dampers under the same shock-absorbing effect.

[0029] Working principle: When the device needs to be used, the protective shell 2 is first impacted so that the protective shell 2 slides inside the front pin head 1, and the front pin head 1 provides a relatively closed environment for the movement of the piston rod 3 in the dual energy dissipation eddy current damper. The left bushing 5 and the right bushing 8 are fixed to the inside of the oil cylinder 6 using a threaded rod 4. The left bushing 5 and the right bushing 8 are filled between the oil cylinder 6 and the piston rod 3 to support the piston rod 3 to push inside the oil cylinder 6. When the protective shell 2 slides inside the front pin head 1, the protective shell 2 will drive the piston 7 to slide along the inner wall of the oil cylinder 6. At this time, the piston 7 squeezes the silicone oil on its left and right sides to generate pressure, causing the silicone oil to flow from the high-pressure side to the low-pressure side. The silicone oil in the oil cylinder 6 flows through the gap between the piston rod 3 and the oil cylinder 6, and finally achieves the purpose of generating viscous damping force, thereby achieving the effect of filling the insufficient eddy current damping; when the copper ring 11 is driven by the piston rod 3 along the permanent magnet 13 When the inner wall slides, the copper ring 11 cuts the magnetic flux lines generated by the permanent magnet 13 and generates eddy current damping force, while the connecting tube 9 and the rear pin head 10 provide a closed space for the generation of eddy current damping force and prevent it from being interfered with by the external magnetic field. At the same time, the magnet seat 12 fixes the permanent magnet 13 and ensures that the permanent magnet 13 will not change the direction of the magnetic flux lines due to shaking when the piston rod 3 slides, thereby achieving the effect of alleviating impact; when the device is impacted, a double damping force can be generated by the sliding of the piston rod 3, which can generate a larger damping force at the same outer diameter, taking into account the dual needs of structure and construction, and achieving the purpose of double energy consumption, thereby achieving the effect of reducing the number or diameter of dampers under the same shock absorption effect; a double energy consumption eddy current damper can not only fill the effect of insufficient eddy current damping, but also achieve the effect of alleviating impact, and can also achieve the effect of reducing the number or diameter of dampers under the same shock absorption effect.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual energy dissipation eddy current damper, comprising a front pin head (1), characterized in that: The outer wall of the front pin head (1) is fixedly connected to a protective shell (2), the inner wall of the protective shell (2) is fixedly connected to an oil cylinder (6), the left interior of the oil cylinder (6) is fixedly connected to a left bushing (5), the right interior of the oil cylinder (6) is fixedly connected to a right bushing (8), the interior of the oil cylinder (6) is threadedly connected to a threaded rod (4), the outer wall of the threaded rod (4) is threadedly connected to the interior of the left bushing (5), the outer wall of the threaded rod (4) is threadedly connected to the outer wall of the right bushing (8), the interior of the front pin head (1) is slidably connected to a piston rod (3), the upper and lower outer walls of the piston rod (3) are fixedly connected to a piston (7), the upper surface of the piston (7) is slidably connected to the left inner wall of the oil cylinder (6), and the right inner wall of the oil cylinder (6) is provided with a fixing component, which is used to fix the permanent magnet (13).

2. The dual energy dissipation eddy current damper according to claim 1, characterized in that: The fixing assembly comprises a connecting pipe (9), the outer wall of the connecting pipe (9) is fixedly connected to the right inner wall of the oil cylinder (6), and the inner wall of the connecting pipe (9) is fixedly connected to a magnet seat (12).

3. The dual energy dissipation eddy current damper according to claim 1, characterized in that: The left inner wall of the piston rod (3) is slidably connected to the lower surface of the left bushing (5), and the right outer wall of the piston rod (3) is slidably connected to the lower surface of the right bushing (8).

4. The dual energy dissipation eddy current damper according to claim 1, characterized in that: A copper ring (11) is fixedly connected to the outer wall of the piston rod (3).

5. The dual energy dissipation eddy current damper according to claim 2, characterized in that: The interior of the connecting pipe (9) is fixedly connected with a rear pin head (10).

6. The dual energy dissipation eddy current damper according to claim 4, characterized in that: The outer wall of the copper ring (11) is arranged inside the rear pin head (10).

7. The dual energy dissipation eddy current damper according to claim 2, characterized in that: A permanent magnet (13) is fixedly connected to the upper surface of the magnet seat (12).

8. The dual energy dissipation eddy current damper according to claim 4, characterized in that: The lower surface of the copper ring (11) is slidably connected to the upper surface of the permanent magnet (13).

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