CN219365016U - Intelligent viscous damper - Google Patents
Intelligent viscous damper Download PDFInfo
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- CN219365016U CN219365016U CN202320905453.3U CN202320905453U CN219365016U CN 219365016 U CN219365016 U CN 219365016U CN 202320905453 U CN202320905453 U CN 202320905453U CN 219365016 U CN219365016 U CN 219365016U
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Abstract
The utility model discloses an intelligent viscous damper, which comprises: an oil cylinder; the sealing bushes are arranged in the oil cylinder barrel and are positioned at two end parts of the oil cylinder barrel, and a damping cavity is formed in the oil cylinder barrel between the sealing bushes; the piston is arranged in the oil cylinder barrel and positioned between the sealing bushes; damping liquid which is contained in damping cavities at two sides of the piston; the piston rod, it is fixed wears to locate on the piston and runs through two seal bush, and the attenuator still includes: a sub-cylinder which is fixed to the rear end portion of the oil cylinder tube and which accommodates the rear end portion of the piston rod therein; and a displacement sensor mounted on the rear end portion of the sub cylinder. The displacement sensor is placed in the closed space, and the closed space is provided with an access hole, so that the electric element can be effectively protected, and the overhaul is convenient; accurate damping force, instantaneous speed and instantaneous acceleration of the viscous damper can be obtained, and meanwhile, the use of a sensor and a communication channel are reduced.
Description
Technical Field
The utility model relates to the field of bridge vibration isolation, in particular to an intelligent viscous damper.
Background
At present, more and more building and bridge seismic reduction and isolation projects propose to monitor the working state of the viscous damper in real time. The viscous damper is often arranged between layers of a building and at the position where the bridge and the bridge pier generate relative displacement, and the real-time running state of the whole building or the whole bridge can be mastered as long as the displacement, the damping force, the temperature, the speed and the acceleration of the viscous damper can be fed back in real time. Thereby meeting the requirements of product intellectualization, building structure intellectualization and bridge structure intellectualization. The intelligent viscous damper is based on the principle that a sensor is arranged in or outside a product body, the sensor is connected with a data acquisition device, and collected information is transmitted to a database appointed by a customer in a wireless or wired mode.
The problems existing in the prior art are mainly as follows: 1. the sensor and the signal generator are arranged externally, and the viscous damper exposed in the open air environment is often corroded by rainwater, so that electrical elements are easily damaged; 2. the existing product needs to install more sensors and more communication channels when needing to measure more types of parameters, however, the installation space of the viscous damper for the instruments is limited, all requirements cannot be met, and meanwhile, the cost is increased due to the addition of the sensors and the communication channels; 3. the existing patent mainly tests displacement and damping force, and lacks temperature, speed and acceleration data.
Disclosure of Invention
The utility model aims to provide an intelligent viscous damper capable of effectively protecting an electric element.
In order to solve the technical problems, the utility model adopts the following technical scheme: an intelligent viscous damper, comprising: an oil cylinder; the sealing bushes are arranged in the oil cylinder barrel and positioned at two end parts of the oil cylinder barrel, and a damping cavity is formed in the oil cylinder barrel between the sealing bushes; the piston is arranged in the oil cylinder barrel and positioned between the sealing bushes; damping liquid which is contained in damping cavities at two sides of the piston; the piston rod, its fixed wears to locate on the piston and run through two sealing liner, the attenuator still includes: a sub-cylinder which is fixed to a rear end portion of the oil cylinder tube and which accommodates the rear end portion of the piston rod therein; and the displacement sensor is arranged on the rear end part of the auxiliary cylinder, and the sensing end part of the displacement sensor is fixedly connected with the rear end part of the piston rod.
In another embodiment, the damper includes a detection element for detecting the state of the damping fluid.
In another embodiment, the detecting elements are multiple and are mounted on a sealing bush at the rear end part of the oil cylinder barrel. The detection element is placed in the closed space, and the closed space is provided with an access hole, so that the electric element can be effectively protected, and meanwhile, the maintenance can be facilitated.
In another embodiment, the detecting element includes one or more of a temperature sensor for detecting a temperature of the damping fluid, a pressure sensor for detecting a pressure of the damping fluid, and a viscosity sensor for detecting a viscosity of the damping fluid. Various working parameters of the damper can be detected, corresponding judgment can be made on working conditions of the damper, and real-time control can be performed.
In another embodiment, the damper comprises a signal transmission module arranged on the auxiliary cylinder, the displacement sensor is in communication connection with the signal transmission module, a detection signal on the displacement sensor is transmitted into the arithmetic unit through the signal transmission module, and the arithmetic unit calculates and obtains the instantaneous speed of the damper. The signal generator is placed in the closed space, and the closed space is provided with an overhaul port, so that the signal generator can be effectively protected, and overhaul can be facilitated.
In another embodiment, the front end portion of the inner side wall of the oil cylinder barrel is in a step shape, and the front end portion of the inner side wall of the oil cylinder barrel comprises a front outer first section and a front outer second section, wherein the front outer first section and the front outer second section are arranged from front to back in the axial direction, and the inner diameter of the front outer first section is smaller than that of the front outer second section.
In another embodiment, the sealing bush at the front end of the oil cylinder barrel is a front sealing bush, the front sealing bush comprises a front inner second section with the outer diameter being matched with the front outer second section, a front inner first section with the outer diameter being smaller than the front inner second section, and a front lining ring with the inner diameter being matched with the outer diameter of the front inner first section and the outer diameter being matched with the front outer first section, the front inner second section is arranged in the front outer second section, the front lining ring is arranged between the front outer first section and the front inner first section, the front outer first section is fixedly connected with the front lining ring through bolts, and the rear end part of the front lining ring is propped against the front end part of the front inner second section.
In another embodiment, the rear end of the inner side wall of the oil cylinder is stepped, and the rear end of the inner side wall of the oil cylinder comprises a rear outer first section and a rear outer second section, wherein the rear outer first section and the rear outer second section are axially distributed from rear to front, and the inner diameter of the rear outer second section is smaller than that of the rear outer first section.
In another embodiment, the sealing bush at the rear end of the oil cylinder barrel is a rear sealing bush, the rear sealing bush comprises a rear inner second section with an outer diameter being matched with the rear outer second section, a rear inner first section with an outer diameter being smaller than the rear inner second section, and a rear backing ring with an inner diameter being matched with the outer diameter of the rear inner first section and an outer diameter being matched with the rear outer first section, the rear inner second section is arranged in the rear outer second section, the rear backing ring is arranged between the rear outer first section and the rear inner first section, the rear outer first section is fixedly connected with the rear backing ring through bolts, and the front end of the rear backing ring abuts against the rear end of the rear inner second section.
In another embodiment, the front end portion of the auxiliary cylinder is connected to the inside of the rear outer first section, and the front end portion of the auxiliary cylinder is fixedly connected to the rear outer first section by bolts on the inner peripheral surface of the rear outer first section.
The utility model has the beneficial effects that: the displacement sensor is placed in the closed space, and the closed space is provided with an access hole, so that the electric element can be effectively protected, and the overhaul is convenient; accurate damping force, instantaneous speed of viscous damper and instantaneous speed can be obtained, and meanwhile, sensor use and communication channels are reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a graph of displacement time course;
FIG. 3 is a plot of instantaneous speed versus time.
Detailed Description
The utility model is described in detail below with reference to the embodiments shown in the drawings:
as shown in fig. 1, the intelligent viscous damper includes:
an oil cylinder 1;
sealing bushes are arranged in the oil cylinder barrel 1 and are positioned at two end parts of the oil cylinder barrel 1, and a damping cavity is formed in the oil cylinder barrel 1 between the sealing bushes;
the piston 4 is arranged in the oil cylinder barrel 1 and is positioned between the sealing bushes; damping fluid, damping fluid is held in the damping cavity of the both sides of piston 4;
a piston rod 5 fixedly penetrating the piston 4 and penetrating the two seal bushes;
a sub-cylinder 6, the sub-cylinder 6 being fixed to the rear end portion of the oil cylinder tube 1 and housing the rear end portion of the piston rod 5 therein, the sub-cylinder 6 being provided with a cover plate 61 thereon;
the displacement sensor 7, the detection elements and the signal transmission module 8 are arranged on the rear end part of the auxiliary cylinder 6, and the sensing end part of the displacement sensor 7 is fixedly connected with the rear end part of the piston rod 5; the detection elements are multiple and are arranged on a sealing bush at the rear end part of the oil cylinder barrel 1; the detection element is placed in the closed space, and the closed space is provided with an access hole, so that the electric element can be effectively protected, and meanwhile, the maintenance is convenient; the detection element comprises one or more of a temperature sensor 9 for detecting the temperature of the damping fluid, a pressure sensor 10 for detecting the pressure of the damping fluid, and a viscosity sensor for detecting the viscosity of the damping fluid, which in the present embodiment comprises the pressure sensor 10 and the temperature sensor 9; various working parameters of the damper can be detected, corresponding judgment can be made on the working conditions of the damper, and real-time control can be performed; acquisition by displacement sensor 7, pressure sensor 10 and temperature sensor 9The obtained data are transmitted to an arithmetic unit through a signal transmission module 8, the transmission mode can be wire transmission or wireless transmission, the damping force value can be obtained through calculation through the pressure value acquired by a pressure sensor 10, the system transmits the pressure value P (MPa) of the viscous damper into the arithmetic unit, and the damping force value F is obtained through a formula F=P×A, wherein A is the effective area (mm 2 ) The method comprises the steps of carrying out a first treatment on the surface of the The signal transmission module 8 transmits the displacement value U (mm) of the viscous damper acquired by the displacement sensor 7 into the arithmetic unit, and the displacement time course curve is subjected to micro-differentiation, as shown in fig. 2, through the formula v n ＝(U n -U n-1 )/(t n -t n-1 ) Calculating the instantaneous velocity v of the viscous damper n (mm/s); the arithmetic unit then calculates the instantaneous velocity v of the viscous damper n (mm/s) time course curve micro-differentiation was performed as shown in FIG. 3 by the formula a n ＝(v n -v n-1 )/(t n -t n-1 ) Calculating the instantaneous speed a of the viscous damper n (mm/s 2), to sum up the data detected by the intelligent viscous damper: the internal pressure, the internal temperature and the displacement can be directly measured by the sensor; damping force, movement speed and movement acceleration can be calculated by an arithmetic unit; the cover plate 61 is detachable, so that the erosion of the external environment to the displacement sensor 7 and the detection element and the signal transmission module 8 can be prevented, and meanwhile, the displacement sensor 7 and the detection element in the maintenance of the maintenance hole can be used as the maintenance hole and the signal transmission module 8.
The front end part of the inner side wall of the oil cylinder barrel 1 is in a ladder shape, the front end part of the inner side wall of the oil cylinder barrel 1 comprises a front outer first section 11 and a front outer second section 12, the front outer first section 11 is arranged from front to back along the axial direction, the inner diameter of the front outer second section 12 is smaller than that of the front outer first section 11, a sealing bush positioned at the front end part of the oil cylinder barrel 1 is a front sealing bush 2, the front sealing bush 2 comprises a front inner second section 22, the outer diameter of the front inner second section 22 is smaller than that of the front inner second section 22, and a front lining ring 23, the inner diameter of the front inner second section 22 is matched with that of the front inner first section 21, the outer second section 12 is arranged in the front, the front lining ring 23 is arranged between the front outer first section 11 and the front inner first section 21, the front outer first section 11 is fixedly connected with the front lining ring 23 through bolts, and the rear end part of the front lining ring 23 abuts against the front end part of the front inner second section 22.
The rear end part of the inner side wall of the oil cylinder barrel 1 is in a ladder shape, the rear end part of the inner side wall of the oil cylinder barrel 1 comprises a rear outer first section 13 and a rear outer second section 14, the rear outer first section 13 is arranged from the rear to the front along the axial direction, the inner diameter of the rear outer second section 14 is smaller than that of the rear outer first section 13, a sealing bush positioned at the rear end part of the oil cylinder barrel 1 is a rear sealing bush 3, the rear sealing bush 3 comprises a rear inner second section 32, the outer diameter of the rear inner second section 31 is smaller than that of the rear inner second section 32, a rear lining ring 33, the inner diameter of the rear inner second section 32 is matched with that of the rear inner first section 31, the outer second section 14 is arranged in the rear outer second section, the rear lining ring 33 is arranged between the rear outer first section 13 and the rear inner first section 31, the rear outer first section 13 is fixedly connected with the rear lining ring 33 through bolts, and the front end part of the rear lining ring 33 abuts against the rear end part of the rear inner second section 32. The front end portion of the sub cylinder 6 is connected to the inside of the rear outer first section 13, and the front end portion of the sub cylinder 6 is fixedly connected to the rear outer first section 13 by bolts on the inner peripheral surface of the rear outer first section 13.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (10)
1. An intelligent viscous damper, comprising:
an oil cylinder;
the sealing bushes are arranged in the oil cylinder barrel and positioned at two end parts of the oil cylinder barrel, and a damping cavity is formed in the oil cylinder barrel between the sealing bushes;
the piston is arranged in the oil cylinder barrel and positioned between the sealing bushes;
damping liquid which is contained in damping cavities at two sides of the piston;
a piston rod fixedly penetrating through the piston and penetrating through the two sealing bushings,
characterized in that the damper further comprises:
a sub-cylinder which is fixed to a rear end portion of the oil cylinder tube and which accommodates the rear end portion of the piston rod therein;
and the displacement sensor is arranged on the rear end part of the auxiliary cylinder, and the sensing end part of the displacement sensor is fixedly connected with the rear end part of the piston rod.
2. The intelligent viscous damper of claim 1, wherein: the damper includes a detection element for detecting a state of the damping fluid.
3. The intelligent viscous damper of claim 2, wherein: the detection elements are multiple and are mounted on the sealing bush at the rear end part of the oil cylinder barrel.
4. The intelligent viscous damper of claim 2, wherein: the detection element comprises one or more of a temperature sensor for detecting the temperature of the damping fluid, a pressure sensor for detecting the hydraulic pressure of the damping fluid, and a viscosity sensor for detecting the viscosity of the damping fluid.
5. The intelligent viscous damper of claim 1, wherein: the damper comprises a signal transmission module arranged on the auxiliary cylinder, and the displacement sensor is in communication connection with the signal transmission module.
6. The intelligent viscous damper of claim 1, wherein: the front end part of the inner side wall of the oil cylinder barrel is in a ladder shape, and the front end part of the inner side wall of the oil cylinder barrel comprises a front outer first section and a front outer second section, wherein the front outer first section and the front outer second section are axially distributed from front to back, and the inner diameter of the front outer first section is smaller than that of the front outer second section.
7. The intelligent viscous damper of claim 6, wherein: the sealing bush that is located the oil cylinder front end portion is preceding sealing bush, preceding sealing bush include the external diameter with preceding outer second festival assorted preceding interior second festival, the external diameter be less than preceding interior first festival of preceding interior second festival, and the internal diameter with preceding interior first festival's external diameter assorted and external diameter with preceding outer first festival assorted preceding backing ring, preceding interior second festival is located preceding outer in the second festival, preceding backing ring is located preceding outer first festival and preceding interior between the first festival, preceding outer first festival with preceding backing ring passes through bolt fixed connection, preceding backing ring's rear end portion supports preceding interior second festival on the preceding tip.
8. The intelligent viscous damper of claim 1, wherein: the rear end part of the inner side wall of the oil cylinder barrel is in a ladder shape, and the rear end part of the inner side wall of the oil cylinder barrel comprises a rear outer first section and a rear outer second section, wherein the rear outer first section and the rear outer second section are axially distributed from rear to front, and the inner diameter of the rear outer second section is smaller than that of the rear outer first section.
9. The intelligent viscous damper of claim 8, wherein: the sealing bush that is located the oil cylinder rear end portion is back sealing bush, back sealing bush include the external diameter with outer second festival assorted back interior second festival, the external diameter is less than back interior first festival of back interior second festival, and the internal diameter with the external diameter assorted of back interior first festival and external diameter with outer first festival assorted back backing ring, back interior second festival is located in the outer second festival of back, back backing ring is located between outer first festival and the back interior first festival of back, back outer first festival with back backing ring passes through bolt fixed connection, the front end portion of back backing ring supports on the rear end portion of back interior second festival.
10. The intelligent viscous damper according to claim 9, wherein: the front end part of the auxiliary cylinder is connected in the rear outer first section, and the front end part of the auxiliary cylinder is fixedly connected with the rear outer first section through bolts on the inner peripheral surface of the rear outer first section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320905453.3U CN219365016U (en) | 2023-04-21 | 2023-04-21 | Intelligent viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320905453.3U CN219365016U (en) | 2023-04-21 | 2023-04-21 | Intelligent viscous damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219365016U true CN219365016U (en) | 2023-07-18 |
Family
ID=87151807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320905453.3U Active CN219365016U (en) | 2023-04-21 | 2023-04-21 | Intelligent viscous damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219365016U (en) |
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2023
- 2023-04-21 CN CN202320905453.3U patent/CN219365016U/en active Active
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