Anti-overheating device for shock-resistant extra-large-tonnage multidirectional energy consumption damper

Abstract

The invention discloses an anti-overheating device for an impact-resistant extra-large-tonnage multidirectional energy consumption damper (CN201611141938). The anti-overheating device comprises a damper body, heat conduction fins, a battery, a motor, a cooling fan, heat conduction silicone grease and a thermometer with a detection module. The heat conduction fins are fixedly installed on the periphery of the damper body, and gaps between the damper body and the heat conduction fins are filled with heat conduction silicone grease. A cooling fan is mounted on the outer side of the heat-conducting fin, and a thermometer with a detection module is mounted on the upper side of the heat-conducting fin; a motor and a battery are installed at one end of the cooling fan. The method is divided into two stages of heat dissipation, in the first stage, when the temperature of damping liquid is within the set range of the first stage, a fan does not work, the contact area of the damper and air is increased through heat conduction fins, and heat dissipation is conducted through natural convection; and in the second stage, when the temperature of the damping liquid exceeds the set range of the first stage, the fan starts to work normally, the heat dissipation efficiency of the heat conduction fins is improved through forced convection, the situation that the viscosity of the damping liquid is reduced due to too high temperature is prevented, and therefore the anti-seismic performance and durability of the damper are improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge seismic reduction and isolation, and in particular to an anti-overheating device for an "impact-resistant extra-large tonnage multi-directional energy-absorbing damper". Background Art

[0002] The impact-resistant large-tonnage multi-directional energy-absorbing damper (CN201611141938) works by excitation of external loads, and a relative displacement is generated between the damping plate and the viscous liquid, and shear viscosity is generated at the same time. During the movement, the damping medium undergoes internal friction and converts the kinetic energy into heat energy and dissipates it to achieve the effect of energy dissipation and shock absorption. Therefore, the impact-resistant large-tonnage multi-directional energy-absorbing damper will generate a large amount of heat energy during operation, causing its internal ambient temperature to be too high, resulting in a decrease in the viscosity of the damping liquid, which seriously affects the damper output effect. Considering that the damping box of the impact-resistant large-tonnage multi-directional energy-absorbing damper (CN201611141938) is an open structure, it cannot rely on pressure increase to reduce the negative impact caused by temperature rise like the traditional cylinder damper. We must seek a reasonable way to solve the overheating problem of the impact-resistant large-tonnage multi-directional energy-absorbing damper (CN201611141938). Summary of the invention

[0003] The existing impact-resistant extra-large tonnage multi-directional energy-absorbing damper (CN201611141938) has the disadvantage that the internal temperature is too high during an earthquake due to its working mechanism, which reduces the viscosity of the damping fluid and affects the seismic effect. In order to solve this problem, an anti-overheating device for the "impact-resistant extra-large tonnage multi-directional energy-absorbing damper" is invented.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an anti-overheating device for an "impact-resistant large-tonnage multi-directional energy-absorbing damper", comprising a damper body, thermal fins, a battery, a motor, a cooling fan, thermal grease, and a thermometer with a detection module.

[0005] The heat-conducting fins are fixedly installed around the damper body, and the gap between the damper body and the heat-conducting fins is filled with heat-conducting silicone grease;

[0006] A cooling fan is installed on the outside of the heat-conducting fins, and a thermometer with a detection module is installed on the upper side;

[0007] A motor and a battery are installed at one end of the heat dissipation fan.

[0008] Preferably, thermal grease is filled between the damper body and the thermal fins to reduce the gap between the damper body and the thermal fins to prevent the heat dissipation effect from being affected due to the thermal conductivity of air being lower than that of the thermal fins.

[0009] Preferably, the material of the heat-conducting fins is aluminum, copper or other materials with good thermal conductivity, so as to increase the thermal conductivity efficiency and better conduct the heat inside the damper to the heat-conducting fins.

[0010] Preferably, the thermometers are provided with a detection module, in which a first-stage temperature critical point is arranged to control a fan switch to achieve two-stage heat dissipation.

[0011] Preferably, the anti-overheating device adopts two-stage heat dissipation to reduce the use time of the motor and the battery, thereby extending the life of the motor, reducing the frequency of battery replacement, and reducing labor costs.

[0012] Beneficial results of the present invention: an anti-overheating device for "impact-resistant large-tonnage multi-directional energy-absorbing damper", which solves the problem that the working mechanism of the impact-resistant large-tonnage multi-directional energy-absorbing damper (CN201611141938) causes the internal environment temperature to be too high, affecting the output effect. At the same time, two-stage heat dissipation is adopted to reduce the use time of the motor and battery, thereby extending the life of the motor, reducing the frequency of battery replacement, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 An elevation view of an overheating prevention device for the "impact-resistant extra-large tonnage multi-directional energy-absorbing damper" provided in this embodiment;

[0014] Figure 2 A schematic diagram of the heat conducting fins provided in this embodiment;

[0015] Figure 3 A schematic diagram of the damper body provided in this embodiment.

[0016] Marked in the figure are: 1. Damper body; 2. Thermal fins; 3. Motor; 4. Battery; 5. Cooling fan; 6. Thermal grease; 7. Thermometer with detection module. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 3 As shown, an overheating prevention device for an "impact-resistant large-tonnage multi-directional energy-absorbing damper" includes a damper body 1, a heat-conducting fin 2, a motor 3, a battery 4, a cooling fan 5, a heat-conducting silicone grease 6, and a thermometer 7 with a detection module;

[0019] The heat-conducting fins 2 are fixedly installed around the damper body 1, and the gap between the damper body 1 and the heat-conducting fins 2 is filled with heat-conducting silicone grease 6;

[0020] The heat conducting fin 2 is provided with a cooling fan 5 on the outside and a thermometer 7 with a detection module on the upper side;

[0021] The motor 3 and the battery 4 are installed at one end of the cooling fan 5 .

[0022] The working principle of the present invention is as follows: in the period before an earthquake occurs and before an earthquake occurs, the anti-overheating device adopts the first stage of heat dissipation, the fan 5 does not work, and the contact area between the damper body 1 and the air is increased by the heat-conducting fins 2, and the heat is dissipated by natural convection; in the middle and late stages of an earthquake, since the damper body 1 converts the mechanical energy of the earthquake into heat energy, the thermometer 7 detects that its internal temperature exceeds the critical point of the first stage temperature in the detection module, and the heat dissipation fan 5 starts to work normally, relying on forced convection to accelerate the heat dissipation efficiency of the heat-conducting fins 2 to prevent the viscosity of the damping fluid from decreasing due to excessive temperature, thereby improving the seismic performance and durability of the damper. According to Newton's cooling law, when there is a temperature difference between the surface of an object and the surroundings, the amount of heat dissipated from a unit area per unit time is proportional to the temperature difference. Since the damper generates heat when it is working, this heat will be transferred to the radiator, causing the radiator to heat up. The higher the temperature of the radiator, the greater the temperature difference with the surrounding air, the higher the efficiency of heat transfer, and the easier it is to dissipate heat into the air. When the temperature of the radiator reaches a certain level, the efficiency of heat transfer reaches a level that is sufficient to make the heat dissipated by the radiator equal to the heat generated by the damper at maximum power consumption, and the temperature stops rising. The heat generation of the damper and the radiator have reached a balance. We only need to make the temperature of the damping fluid lower than the critical non-operating temperature of the damping fluid at this time to effectively prevent the impact-resistant large-tonnage multi-directional energy-absorbing damper (CN201611141938) from overheating.

[0023] The above is a detailed description of the implementation methods of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described implementation methods. For ordinary technicians in this field, within the scope of the principles and technical ideas of the present invention, various changes, modifications, substitutions and deformations of these implementation methods still fall within the protection scope of the present invention.

Claims

1. An overheating prevention device for "impact-resistant large-tonnage multi-directional energy-absorbing damper", Features: Including damper body, thermal fins, battery, motor, cooling fan, thermal grease, and thermometer with detection module; Heat-conducting fins are fixedly installed around the damper body; A cooling fan is installed on the outside of the heat-conducting fins, and a thermometer with a detection module is installed on the upper side; A motor and a battery are installed at one end of the heat dissipation fan.

2. According to claim 1, an anti-overheating device for "impact-resistant large-tonnage multi-directional energy-absorbing damper", Features: The material of the heat conducting fins is aluminum, copper or other materials with good heat conducting properties.

3. According to claim 1, an anti-overheating device for "impact-resistant large-tonnage multi-directional energy-absorbing damper", Features: Thermal conductive silicone grease is filled between the damper body and the thermal conductive fins.

4. According to claim 1, an anti-overheating device for "impact-resistant large-tonnage multi-directional energy-absorbing damper", Features: The thermometers are all provided with a detection module, and a first-stage temperature critical point is arranged in the detection module.

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