CN113374821B - Semi-active rotary type inertia capacity damping integrated vibration damper - Google Patents
Semi-active rotary type inertia capacity damping integrated vibration damper Download PDFInfo
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- CN113374821B CN113374821B CN202110557622.4A CN202110557622A CN113374821B CN 113374821 B CN113374821 B CN 113374821B CN 202110557622 A CN202110557622 A CN 202110557622A CN 113374821 B CN113374821 B CN 113374821B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3292—Sensor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a semi-active rotary inertia capacity damping integrated vibration damper. The planet gear is further used as a damper working cavity, and a throttle valve on the piston generates a damping effect through the axial movement of the synchronous device. Because of adopting the planetary gear structure, the device has the characteristics of compact structure, small volume and light weight, and simultaneously has strong shock and vibration resistance. The integration of the inerter and the damper provides a method for solving the space arrangement problem and lightening the vibration reduction system. The ECU combines basic parameters of the system to select different transmission routes to match with the output shaft and change the piston stroke, thereby providing two different inertia mass coefficients and damping coefficients.
Description
Technical Field
The invention relates to a vibration damper device, in particular to a semi-active rotary inertia capacity damping integrated vibration damper device.
Background
Smith first proposed the concept of inerter in 2002, which is a device with two independent free end points, where the force generated at both ends is proportional to its relative acceleration, and this ratio is called the "inerter coefficient" (in kg). As a novel mechanical device, the inertial container is also widely applied to the field of vibration isolation.
At present, most of the containers are translational mechanical inertial containers, the structure is single, and the research on the rotary inertial containers is less. In automotive transmissions, however, antiresonance damping techniques employing torsional springs in combination with inertial mechanisms are in practical use because the use of reduced fuel consumption techniques results in increased torsional excitation input forces and increased amplitude amplification of the transmission.
The rotary inerter has two rotatable mechanical ports, the characteristics of which are that equal and opposite moments t (t) at the terminals are proportional to the relative angular acceleration at the two ends, i.e. t (t) ═ b (θ ″)1-θ″2). T is the torque applied to the two terminals, b is the coefficient of inertia, θ1，θ2Angular acceleration at both ends.
The rotary inerter is a passive mechanical device, is widely applied to a damping system, and has various arrangement forms. The application of the automobile comprises the vibration reduction of a shafting, the vibration reduction of a steering column and a steering tie rod in a steering system and the vibration reduction of an automobile trunk hinge. However, the design of the damping system inevitably involves space occupation, and in order to overcome this problem, a simple structure or an integration of several passive elements may be adopted.
Disclosure of Invention
The invention designs a novel semi-active shock absorber device integrating a rotary inerter and a damper, and the device can improve the comprehensive performance of a shock absorption system. The space occupation and the piston stroke can be reduced by means of integration of the rotary inerter and the damper. The use of materials in manufacturing can be reduced, thereby reducing the quality of the damping system.
The invention realizes the technical purpose by the following technical means: a semi-active rotary inertia-capacitance damping integrated vibration damper comprises a fixed intermediate shaft (1), a synchronizing device (2), a piston rod (3), a throttle valve (4), a piston (5), a damper working cavity (6), a fixed sun gear (7), a movable disc (8), a limiting connecting rod (9), a sealing piston (10), a planetary gear (11), an outer gear ring (12), a sensor (14) and an ECU (15); the synchronous device (2) can rotate on the fixed intermediate shaft (1) and can move up and down along the fixed intermediate shaft (1); the synchronous device (2) is rigidly connected with the piston rod (3); the piston rod (3) is connected with a piston (5), four planetary gears (11) are circumferentially arranged around the fixed sun gear (7) and are meshed with the outer gear ring (12) and the fixed sun gear (7), a damper working cavity (6) is formed inside each planetary gear (11), and the piston (5) can move up and down in the damper working cavity (6); a throttle valve (4) is arranged on the piston (5), a sealing piston (10) is arranged at the lower end of the damper working cavity (6), the sealing piston (10) is connected with a limiting connecting rod (9), and the limiting connecting rod (9) is fixed on the movable disc (8); the sensor (14) is connected with the ECU (15), the sensor (14) collects some vehicle body road surface information, the ECU (15) combines basic parameters of the device to select different transmission routes to match with the output shaft and change the piston stroke, and therefore two different inertial mass coefficients and damping coefficients are provided.
Further, the fixed sun gear (7) and the planetary gears (11) are recommended to adopt the minimum backlash under the condition that the lubrication and the cooling are normal.
Furthermore, the actual sizes of the tooth thicknesses of the four planetary gears (11) in the same transmission are equal, and the masses of the planetary gears (11) are also equal.
Furthermore, a limiting block (13) is arranged on the fixed intermediate shaft (1), the position of the limiting block (13) can be adjusted, and meanwhile, certain rigidity is achieved, and certain impact can be guaranteed to be resisted.
Furthermore, the connection between the synchronizing device (2) and the piston rod (3) has certain rigidity to prevent breakage, and the piston rod (3) has certain rigidity to drive the planetary gear (11) to rotate.
Further, when the fixed sun gear (7) is locked by the ECU (15), the outer gear ring (12) is loosened, and the planetary gear (11) is driven to rotate around the fixed sun gear (7) in a reciprocating manner to generate an inertia effect through the reciprocating rotation motion of the synchronizer (2) and the outer gear ring (12), so that a rotary inertial container is formed; when the ECU (15) locks the outer gear ring (12), the fixed sun gear (7) is loosened, and the planetary gear (11) is driven to rotate around the fixed sun gear (7) in a reciprocating manner through the reciprocating rotation motion of the synchronizer (2) and the fixed sun gear (7) to generate an inertia effect, so that a rotary inertial container is formed; the planet gear (11) is further used as a damper working cavity (6), a throttle valve (4) on the piston (5) generates a damping effect through the axial movement of the synchronous device (2), a damper is formed, and meanwhile the ECU (15) selectively changes the stroke of the piston (5) through signals of the sensor (14) so as to change the damping coefficient.
The beneficial implementation effects of the invention are as follows: the device enriches the types of the vibration reduction systems by means of integration of the rotary inerter and the damper. Meanwhile, the integration means can reduce the space occupation and shorten the piston stroke, and can reduce the use of materials in the production and manufacturing process, thereby lightening the quality of the vibration reduction system. By adopting a planetary gear structure, the device has the characteristics of compact structure, small volume and light weight, and simultaneously has strong shock and vibration resistance. The ECU combines basic parameters of the system to select different transmission routes to match with the output shaft and change the piston stroke, thereby providing two different inertia mass coefficients and damping coefficients.
Drawings
FIG. 1 is a structural diagram of a semi-active rotary inertial volume damping integrated vibration damper according to the present invention;
FIG. 2 is a cross-sectional view of a semi-active rotary inertial volume damping integrated vibration damper according to the present invention; (a) the damping device is a semi-active rotary inertia capacity damping integrated damping device; (b) is a sectional view A-A; (c) is a cross section of a semi-active rotary inertia capacity damping integrated vibration damper;
FIG. 3 is a schematic model diagram of a semi-active rotary inertial volume damping integrated vibration damping device according to the present invention;
FIG. 4 is a flow chart of the ECU adjusting the inerter coefficient according to the sensor in the semi-active rotary inerter damping integrated vibration damping device.
In the figure: 1. the device comprises a fixed middle shaft, 2, a synchronizing device, 3, a piston rod, 4, a throttle valve, 5, a piston, 6, a damper working cavity, 7, a fixed sun gear, 8, a movable disc, 9, a limiting connecting rod, 10, a sealing piston, 11, a planetary gear, 12, an outer gear ring, 13, a limiting block, 14, a sensor, 15 and an ECU.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and detailed description, but the scope of the present invention is not limited thereto.
As shown in figure 1, the semi-active rotary inertia-capacitance damping integrated vibration damper comprises a fixed intermediate shaft (1), a synchronizing device (2), a piston rod (3), a throttle valve (4), a piston (5), a damper working cavity (6), a fixed sun gear (7), a movable disc (8), a limiting connecting rod (9), a sealing piston (10), a planetary gear (11), an outer gear ring (12), a limiting block (13), a sensor (14) and an ECU (15). The four planet gears (11) are circumferentially arranged around the fixed sun gear (7) and are meshed with the outer gear ring (12) and the fixed sun gear (7). A damper working cavity (6) is arranged in the planetary gear (11), and the piston (5) can move up and down in the damper working cavity (6); wherein the synchronous device (2) can rotate on the fixed intermediate shaft (1) and can move up and down along the fixed intermediate shaft (1); the synchronous device (2) is rigidly connected with the piston rod (3); a throttle valve (4) is arranged on the piston (5), a sealing piston (10) is arranged at the lower end of the damper working cavity (6), the sealing piston (10) is connected with a limiting connecting rod (9), and the limiting connecting rod (9) is fixed on the movable disc (8); the sensor (14) is connected with an ECU (15). The fixed sun gear (7) and the planetary gear (11) recommend minimum backlash under the condition of normal lubrication and cooling; the actual size of the tooth thickness of each planetary gear (11) in the same transmission is equal, and the mass of each planetary gear (11) is equal; the synchronous device (2) can rotate on the fixed intermediate shaft (1) and can move up and down along the fixed intermediate shaft (1); the synchronous device (2) is rigidly connected with the piston rod (3); the fixed middle shaft (1) is provided with a limiting block (13), the position of the limiting block (13) can be adjusted, and meanwhile, the fixed middle shaft has certain rigidity and can ensure that certain impact can be resisted; the connection between the synchronizing device (2) and the piston rod (3) has certain rigidity, so that the occurrence of fracture is prevented; the piston rod (3) has certain rigidity and can drive the planetary gear (11) to rotate.
FIG. 2 is a cross-sectional view of a semi-active rotary inertial volume damping integrated vibration damper according to the present invention; FIG. 3 is a schematic model diagram of a semi-active rotary inertial volume damping integrated vibration damping device according to the present invention; FIG. 4 is a flow chart of the ECU adjusting the inerter coefficient according to the sensor in the semi-active rotary inerter damping integrated vibration damping device.
As will be further described below in connection with the operation of the device, the ECU (15) selects different transmission routes in accordance with signals from the sensors (14).
Transfer route 1: the ECU (15) locks the fixed sun gear (7), loosens the outer gear ring (12), and drives the planetary gear (11) to rotate around the fixed sun gear (7) in a reciprocating manner to generate an inertia effect through the reciprocating rotation motion of the synchronizer (2) serving as one terminal and the outer gear ring (12) serving as the other terminal, so that the rotary inertial container is formed.
Transfer route 2: the ECU (15) locks the outer gear ring (12), loosens the fixed sun gear (7), and drives the planetary gear (11) to rotate around the fixed sun gear (7) in a reciprocating manner to generate an inertia effect through the reciprocating rotation motion of the synchronizer (2) serving as one terminal and the fixed sun gear (7) serving as the other terminal, so that the rotary inertial container is formed.
The planet gear (11) is further used as a damper working chamber (6), and the throttle valve (4) on the piston (5) generates a damping effect through the axial movement of the synchronous device (2) to form a damper. Meanwhile, the ECU (15) can selectively change the stroke of the piston (5) through the signal of the sensor (14) so as to change the damping coefficient. The cylinder damper can be replaced with other types of dampers in the drawings.
Torque is input to the synchronizer (2), and because the fixed sun gear (7) or the outer gear ring (12) is kept still, the synchronizer (2) and the piston rod (3) drive the planetary gear (11) to revolve and rotate at the same time, and the torque is output from the outer gear ring (12) or the fixed sun gear (7); meanwhile, when the synchronizer (2) is impacted by the axial force, the piston rod (3) is driven to move axially, and the vibration is relieved under the action of damping force in the planetary gear (11). The mutual cooperation of inertia force and damping force alleviates axial impact force and the vibration that big torque formed to the very big degree.
The device forms an integrated structure of the damper and the rotary inerter, and can reduce the occupied space and shorten the stroke of the piston. The use of materials in manufacturing can be reduced, thereby reducing the mass of the damping system. By adopting a planetary gear structure, the device has the characteristics of compact structure, small volume and light weight, and simultaneously has strong shock and vibration resistance. The ECU combines basic parameters of the system to select different transmission routes to match with the output shaft and change the piston stroke, thereby providing two different inertia mass coefficients and damping coefficients.
In conclusion, when the vibration damping device is applied to a vibration damping system, the occupied space can be reduced, the arrangement is convenient, the working performance of the system is improved, and the production and the manufacture cost are saved.
Claims (6)
1. A semi-active rotary inertia capacity damping integrated vibration damper is characterized by comprising a fixed intermediate shaft (1), a synchronizing device (2), a piston rod (3), a throttle valve (4), a piston (5), a damper working cavity (6), a fixed sun gear (7), a movable disc (8), a limiting connecting rod (9), a sealing piston (10), a planetary gear (11), an outer gear ring (12), a sensor (14) and an ECU (15); the synchronous device (2) can rotate on the fixed intermediate shaft (1) and can move up and down along the fixed intermediate shaft (1); the synchronous device (2) is rigidly connected with the piston rod (3); the piston rod (3) is connected with a piston (5), four planetary gears (11) are circumferentially arranged around the fixed sun gear (7) and are meshed with the outer gear ring (12) and the fixed sun gear (7), a damper working cavity (6) is formed inside each planetary gear (11), and the piston (5) can move up and down in the damper working cavity (6); a throttle valve (4) is arranged on the piston (5), a sealing piston (10) is arranged at the lower end of the damper working cavity (6), the sealing piston (10) is connected with a limiting connecting rod (9), and the limiting connecting rod (9) is fixed on the movable disc (8); the sensor (14) is connected with the ECU (15), the sensor (14) collects some vehicle body road surface information, the ECU (15) combines basic parameters of the device to select different transmission routes to match with the output shaft and change the piston stroke, and therefore two different inertial mass coefficients and damping coefficients are provided.
2. A semi-active rotary inertia damping integrated shock absorber device according to claim 1, wherein the fixed sun gear (7) and the planetary gears (11) recommend minimum backlash under normal lubrication and cooling conditions.
3. The device of claim 1, wherein the tooth thicknesses of the four planetary gears (11) in the same transmission are equal in actual size, and the masses of the planetary gears (11) are equal.
4. The semi-active rotary inertia capacitance damping integrated vibration damper according to claim 1, wherein the fixed intermediate shaft (1) is provided with a limiting block (13), and the limiting block (13) can adjust the position and has certain rigidity to ensure that certain impact can be resisted.
5. The semi-active rotary inertia capacitance damping integrated vibration damper according to claim 1, wherein the connection between the synchronizer (2) and the piston rod (3) has a certain rigidity to prevent breakage, and the piston rod (3) has a certain rigidity to drive the planetary gear (11) to rotate.
6. The semi-active rotary inertia capacitance damping integrated vibration damper according to claim 1,
when the fixed sun gear (7) is locked by the ECU (15), the outer gear ring (12) is loosened, and the planetary gear (11) is driven to rotate around the fixed sun gear (7) in a reciprocating manner to generate an inertia effect through the reciprocating rotation motion of the synchronizer (2) and the outer gear ring (12), so that a rotary inertial container is formed; when the ECU (15) locks the outer gear ring (12), the fixed sun gear (7) is loosened, and the planetary gear (11) is driven to rotate around the fixed sun gear (7) in a reciprocating manner through the reciprocating rotation motion of the synchronizer (2) and the fixed sun gear (7) to generate an inertia effect, so that a rotary inertial container is formed; the planet gear (11) is further used as a damper working cavity (6), a throttle valve (4) on the piston (5) generates a damping effect through the axial movement of the synchronous device (2), a damper is formed, and meanwhile the ECU (15) selectively changes the stroke of the piston (5) through signals of the sensor (14) so as to change the damping coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557622.4A CN113374821B (en) | 2021-05-21 | 2021-05-21 | Semi-active rotary type inertia capacity damping integrated vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557622.4A CN113374821B (en) | 2021-05-21 | 2021-05-21 | Semi-active rotary type inertia capacity damping integrated vibration damper |
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| Publication Number | Publication Date |
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| CN113374821A CN113374821A (en) | 2021-09-10 |
| CN113374821B true CN113374821B (en) | 2022-04-26 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134894A (en) * | 1991-09-30 | 1992-08-04 | Tam Isaac Y | Inertial masses mediated rotational energy coupler |
| CN102494080A (en) * | 2011-11-15 | 2012-06-13 | 江苏大学 | Integral shock absorber device of inertial container and damper in coaxial parallel connection |
| CN104763768A (en) * | 2014-12-02 | 2015-07-08 | 江苏大学 | Inert and damping integrated gas-filled damper |
| CN110397695A (en) * | 2019-07-17 | 2019-11-01 | 重庆大学 | Magnetorheological half active variable damping and the suspension damper mechanism for actively becoming used appearance |
-
2021
- 2021-05-21 CN CN202110557622.4A patent/CN113374821B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134894A (en) * | 1991-09-30 | 1992-08-04 | Tam Isaac Y | Inertial masses mediated rotational energy coupler |
| CN102494080A (en) * | 2011-11-15 | 2012-06-13 | 江苏大学 | Integral shock absorber device of inertial container and damper in coaxial parallel connection |
| CN104763768A (en) * | 2014-12-02 | 2015-07-08 | 江苏大学 | Inert and damping integrated gas-filled damper |
| CN110397695A (en) * | 2019-07-17 | 2019-11-01 | 重庆大学 | Magnetorheological half active variable damping and the suspension damper mechanism for actively becoming used appearance |
Non-Patent Citations (3)
| Title |
|---|
| 基于Simscape的理想地棚阻尼被动实现方法研究;张孝良等;《振动与冲击》;20141228(第24期);全文 * |
| 惯容与阻尼串联式ISD悬架实车道路试验;张孝良等;《汽车工程》;20161125(第11期);全文 * |
| 简单三元件结构的车辆被动ISD悬架研究;杨晓峰等;《机械设计》;20131220(第12期);全文 * |
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