CN114704588A - Damping vibration attenuation device with parallel damping branches - Google Patents
Damping vibration attenuation device with parallel damping branches Download PDFInfo
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- CN114704588A CN114704588A CN202210094094.8A CN202210094094A CN114704588A CN 114704588 A CN114704588 A CN 114704588A CN 202210094094 A CN202210094094 A CN 202210094094A CN 114704588 A CN114704588 A CN 114704588A
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- 238000013016 damping Methods 0.000 title claims abstract description 271
- 239000006096 absorbing agent Substances 0.000 claims abstract description 41
- 230000010354 integration Effects 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 124
- 230000035939 shock Effects 0.000 claims description 33
- 239000010720 hydraulic oil Substances 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control 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
- F16F9/10—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
- F16F9/18—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 a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
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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
- F16F9/18—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 a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
- F16F9/187—Bitubular units with uni-directional flow of damping fluid through the valves
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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
- F16F9/3235—Constructional features of cylinders
- F16F9/325—Constructional features of cylinders for attachment of valve units
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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
- F16F9/3235—Constructional features of cylinders
- F16F9/3257—Constructional features of cylinders in twin-tube type devices
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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
- 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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
- F16F9/464—Control of valve bias or pre-stress, e.g. electromagnetically
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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
- F16F9/3235—Constructional features of cylinders
- F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention belongs to a damping vibration attenuation device, in particular to a parallel damping branch circuit damping vibration attenuation device, which comprises a vibration absorber, an integrated seat, a pipeline formed by an integrated seat structure, a damping part in the integrated seat and an oil tank formed by the vibration absorber, a mounting sleeve and the integrated seat, wherein the damping part comprises two or more than two parallel damping branch circuits, a solenoid valve and a throttle valve are sequentially arranged in each damping branch circuit, the solenoid valve comprises a switchable on position and an off position, the vibration absorber comprises a cylinder body, a piston arranged in the cylinder body in a sliding way and a piston rod connected with the piston, and the vibration absorber, the damping part and the oil tank form circulation through the pipeline. The device is greatly improved in compactness, and the device is convenient to install after integration and has application prospect.
Description
Technical Field
The invention belongs to a damping vibration attenuation device, and particularly relates to a parallel damping branch damping vibration attenuation device.
Background
With the rapid development of transportation of mobile equipment vehicles, including automobiles for road unguided transportation and vehicles for guided transportation systems (motor train units, subways, light rails, trams, magnetic suspension vehicles, rubber-tyred vehicles, etc. containing rails and unguided guided rubber-tyred vehicles), the fixed marshalling transportation and cross-line transportation of the mobile equipment vehicles are in higher proportion. At present, damping parameters of a cylindrical hydraulic shock absorber (or called hydraulic shock absorber) generally connected with an elastic element in parallel in a mobile equipment vehicle are set when the mobile equipment vehicle leaves a factory, and due to structural limitation, only one damping parameter can be set or limited, the damping parameter cannot be changed or cannot be changed rapidly in the application process of the mobile equipment vehicle to adapt to different application scene requirements, or the hydraulic shock absorber with different damping parameters is replaced to adapt to different application requirements, so that the transportation efficiency is reduced, and the application cost is increased.
The hydraulic shock absorbers at the same position of the same vehicle may need different damping parameters to achieve the optimization of comfort index and safety index; the movable equipment fixes a grouped vehicle group, vehicles at different positions in the group are on the same grade line, hydraulic shock absorbers at the same position may need different damping parameters, or hydraulic shock absorbers at the same position of the same vehicle may need different damping parameters when the grouped vehicles run back and forth on the same line without turning around, so as to achieve the optimization of comfort indexes and safety indexes of all vehicles in the group, but at present, a good way for solving the problem of a shock absorber device which can rapidly switch different damping parameters under different road conditions is not provided.
Disclosure of Invention
The invention aims to provide a damping device with parallel damping branches, which can quickly switch different damping parameters.
The invention comprises a shock absorber, an integrated seat, a pipeline formed by the structure of the integrated seat, a damping part in the integrated seat, and an oil tank formed by the shock absorber, a mounting sleeve and the integrated seat, wherein the damping part comprises two or more damping branches connected in parallel, a solenoid valve and a throttle valve are sequentially arranged in the damping branches, the solenoid valve comprises a switchable conducting position and a switchable stopping position, the throttle valve comprises a one-way valve six and a throttle hole, one end of the damping branch close to the solenoid valve is connected to the head end of the damping part, the other end of the damping branch is connected to the tail end of the damping part, the shock absorber comprises a cylinder body, a piston arranged in the cylinder body in a sliding manner and a piston rod connected with the piston, the shock absorber, the damping part and the oil tank form circulation through the pipeline, when the piston moves upwards or downwards, hydraulic oil enters the damping part through the pipeline and passes through one or more damping branches, different damping combinations are formed by selecting hydraulic oil to flow through one or more damping branches to act on the piston.
Furthermore, the piston divides the cylinder body into an upper oil cavity and a lower oil cavity, when the working cavity is the lower oil cavity, the piston further comprises a first pipeline for connecting the lower oil cavity and the head end of the damping part, a second pipeline for connecting the tail end of the damping part and the oil tank, a third pipeline for connecting the oil tank and the head end of the damping part, a fourth pipeline for connecting the tail end of the damping part and the lower oil cavity, and a fifth pipeline for connecting the upper oil cavity and the oil tank, wherein valves are arranged on the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.
Furthermore, the valve comprises a first check valve arranged on the first pipeline and communicated towards the head end of the damping part, a second check valve arranged on the second pipeline and communicated towards the oil tank, a third check valve arranged on the third pipeline and communicated towards the head end of the damping part, and a fourth check valve arranged on the fourth pipeline and communicated towards the lower oil cavity.
Further, the first pipeline and the third pipeline are mutually converged, and the second pipeline and the fourth pipeline are mutually converged.
Furthermore, the piston divides the cylinder body into an upper oil cavity and a lower oil cavity, when the working cavity is the upper oil cavity, the head end of the damping part is communicated with the upper oil cavity, the tail end of the damping part is communicated with the oil tank, the hydraulic cylinder further comprises a pipeline six for connecting the lower oil cavity and the oil tank, a valve is arranged on the pipeline six, a check valve seven which is communicated from the lower oil cavity to the upper oil cavity is arranged on the piston, and the volume of oil which flows into the upper oil cavity from the lower oil cavity is larger than the volume increased by the upper oil cavity when the piston is in the same stroke.
Furthermore, the valve is a check valve V communicated from the oil tank to the lower oil cavity.
Furthermore, the pipeline and the damping part are distributed on the integrated seat.
Furthermore, the vibration damper is fixedly arranged at one end of the integration seat.
Furthermore, the outer side of the shock absorber is also provided with a mounting sleeve, and the mounting sleeve, the cylinder body and the integrated base form an oil tank.
The invention has the beneficial effects that a plurality of damping branches are arranged, and in the application, one damping branch or a plurality of damping branches can be selected to be conducted according to the requirements, so that the aim of selectively variable damping of the shock absorber is fulfilled, wherein the damping value of each damping branch can be the same or different, when the damping values are different, the range value of the selectively variable damping can be further expanded on the premise that the damping branches are constant, the selectable range is improved, the optimal damping parameters of the hydraulic shock absorber can be selected in a limited way when the vehicles with the mobile equipment are on lines with different grades or the vehicles with the mobile equipment at different positions in a fixed grouping vehicle group are on the same line or different lines, and the optimization of the comfort index and the safety index of the vehicle can be quickly and effectively achieved. And the pipeline and the plurality of damping branches are integrated in the integrated base in parallel, so that the structural characteristics are greatly utilized, the whole damping structure is directly formed, the cost is reduced, the compactness of the device is greatly improved, and the device is convenient to install after integration, so that the device has application prospects. The size of the throttle hole in the throttle valve can be self-adjusted according to the pressure of hydraulic oil flowing through the throttle valve and a return spring in the throttle valve, the damping force can be controlled to be smooth, and the impact of the damping force is reduced. Drawings
FIG. 1 is a simplified schematic diagram of a first embodiment of the present invention;
FIG. 2 is a hydraulic oil flow diagram when the piston moves downward according to the first embodiment of the present invention;
FIG. 3 is a hydraulic oil flow diagram when the piston moves upward according to the first embodiment of the present invention;
FIG. 4 is a front cross-sectional view of a first embodiment of the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a sectional view taken along line B-B of FIG. 4;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 8 is a sectional view taken along line G-G of FIG. 4;
FIG. 9 is a simplified schematic diagram of a second embodiment of the present invention;
FIG. 10 is a hydraulic oil flow diagram when the piston moves downward according to the second embodiment of the present invention;
FIG. 11 is a hydraulic oil flow diagram when the piston moves upward according to the second embodiment of the present invention;
FIG. 12 is a front cross-sectional view of a second embodiment of the present invention;
FIG. 13 is a sectional view taken along line A-A of FIG. 12;
FIG. 14 is a sectional view taken along line B-B of FIG. 12;
FIG. 15 is a cross-sectional view taken along line C-C of FIG. 12;
fig. 16 is a sectional view taken along line D-D in fig. 12.
In the figures, 1-mounting the sleeve; 2-a damping member; 3-a damping branch; 4-an electromagnetic valve; 401-on bit; 402-a cut-off bit; 5-a shock absorber; 501-cylinder body; 502-a piston; 503-a piston rod; 504-upper oil chamber; 505-a lower oil chamber; 506-one-way valve seven; 6-an oil tank; 7-pipeline one; 8-pipeline two; 9-pipeline three; 10-pipeline four; 11-pipeline five; 12-a one-way valve I; 13-one-way valve II; 14-one-way valve III; 15-check valve four; 16-pipeline six; 17-one-way valve five; 18-an integration seat; 19-a throttle valve; 1901-check valve six; 1902-orifice; 20-a base; 21-upper seat.
Detailed Description
Example one
As shown in fig. 1-8, the present invention includes a shock absorber 5, an integration seat 18, a pipeline formed by the structure of the integration seat 18, a damping part 2 in the integration seat 18, and a fuel tank 6 formed by the shock absorber 5, a mounting sleeve 1 and the integration seat 18, where the damping part 2 includes two or more damping branches 3 connected in parallel, a solenoid valve 4 and a throttle valve 19 are sequentially disposed in the damping branch 3, the solenoid valve 4 includes a switchable on position 401 and an off position 402, the throttle valve 19 includes a check valve six 1901 and a throttle orifice 1902, by disposing a throttle valve 19 including a check valve six 1901 and a throttle orifice 1902, the damping branch 3 can be ensured to have a smooth damping force function, and at the same time the flow direction of the damping branch 3 can be ensured to work normally, one end of the damping branch 3 near the solenoid valve 4 is connected as a head end of the damping part 2, and the other end is connected as a tail end of the damping part 2, the shock absorber 5 comprises a cylinder 501, a piston 502 arranged in the cylinder 501 in a sliding mode and a piston rod 503 connected with the piston 502, the shock absorber 5, a damping part and an oil tank 6 form circulation through pipelines, when the piston 502 moves upwards or downwards, hydraulic oil sequentially enters the damping part 2 through the pipelines and passes through one or more damping branches 3, and different damping combinations are formed to act on the piston 502 through selecting the hydraulic oil to flow through the one or more damping branches 3.
The invention is provided with a plurality of damping branches 3, and in application, one damping branch 3 or a plurality of damping branches 3 can be selected to be conducted according to requirements, thereby achieving the purpose of selectively variable damping of the shock absorber 5, wherein the damping value of each damping branch 3 can be the same or different, when the damping values are different, and the damping branches 3 are constant, the range value of the selectively variable damping can be further expanded, the selectable range is improved, the optimal damping parameters of the hydraulic shock absorber can be selected in a limited way on different grades of lines of mobile equipment vehicles or on the same line or different lines of vehicles at different positions in a mobile equipment fixed grouping vehicle group, and the optimization of the comfort index and the safety index of the vehicle can be rapidly and effectively achieved. And the pipeline and the plurality of damping branches 3 are integrated in the integrated base 18 in parallel, so that the structural characteristics of the integrated base are greatly utilized, the whole damping structure is directly formed, the cost is reduced, the compactness of the device is greatly improved, and the integrated base is convenient to install and has application prospect.
Piston 502 divides cylinder body 501 into upper oil chamber 504 and lower oil chamber 505, when the working chamber is lower oil chamber 505, still include the pipeline 7 of connecting lower oil chamber 505 and damping part 2 head end, connect pipeline two 8 of damping part 2 tail end and oil tank 6, still include the pipeline three 9 of connecting oil tank 6 and damping part 2 head end, connect pipeline four 10 of damping part 2 tail end and lower oil chamber 505, and connect pipeline five 11 of connecting upper oil chamber 504 and oil tank 6, all be provided with the valve on pipeline one 7, pipeline two 8, pipeline three 9 and the pipeline four 10. In this embodiment, the lower oil chamber 505 and the oil tank 6 are connected by four pipes to form an oil circuit.
The valves can be electromagnetic valves and are controlled by a control system when needed, and in the embodiment, the valves are preferably check valves, and specifically, the valves comprise a first check valve 12 which is arranged on a first pipeline 7 and flows towards the head end of the damping part 2, a second check valve 13 which is arranged on a second pipeline 8 and flows towards the oil tank 6, a third check valve 14 which is arranged on a third pipeline 9 and flows towards the head end of the damping part 2, and a fourth check valve 15 which is arranged on a fourth pipeline 10 and flows towards the lower oil cavity 505.
The first pipeline 7 and the third pipeline 9 are mutually converged, and the second pipeline 8 and the fourth pipeline 10 are mutually converged, so that the structure of the integration seat 18 is simplified.
The arrangement of the invention can ensure that when the working cavity is the lower oil cavity 505 and hydraulic oil circulates bidirectionally in the lower oil cavity 505, the hydraulic oil passes through the damping part 2 in one direction and can ensure that smooth damping force is obtained after passing through the throttle valve 19 in the damping branch 3.
As shown in fig. 2, when the piston 502 moves downward, the hydraulic oil in the lower oil chamber 505 flows into the head end of the damping part 2 through the first pipeline 7 and the first check valve 12, and passes through one or more damping branches 3 as required, and finally flows into the oil tank 6 from the tail end of the damping part 2, the second pipeline 8 and the second check valve 13, and simultaneously the upper oil chamber 504 sucks oil from the oil tank 6 through the fifth pipeline 11; as shown in fig. 3, when the piston 502 moves upward, the hydraulic oil in the oil tank 6 flows into the head end of the damping part 2 through the pipeline three 9 and the check valve 14, and flows through one or more damping branches 3 as required, and finally flows into the lower oil chamber 505 from the tail end of the damping part 2, the pipeline four 10 and the check valve four 15, and the hydraulic oil in the upper oil chamber 504 is discharged to the oil tank 6 through the pipeline five 11.
The pipeline and the damping parts 2 are distributed on the integrated base 18, the shock absorber 5 is fixedly arranged at one end of the integrated base 18, the space of the integrated base 18 is reasonably utilized, and the compact structure and the reasonable layout of the integrated base 18 are ensured.
The outer side of the shock absorber 5 is further provided with a mounting sleeve 1, the cylinder body 501 and the integrated base 18 form an oil tank 6, the shock absorber further comprises an upper base 21, and the upper base 21 seals the mounting sleeve 1 and is in sliding sealing fit with the piston rod 503.
Example two
The difference between the first embodiment and the second embodiment is that the working chamber of the present embodiment is an upper oil chamber, specifically:
as shown in fig. 9-16, the piston 502 divides the cylinder body 501 into an upper oil chamber 504 and a lower oil chamber 505, when the working chamber is the upper oil chamber 504, the head end of the damping member 2 is communicated with the upper oil chamber 504, the tail end of the damping member 2 is communicated with the oil tank 6, the piston further comprises a pipeline six 16 connecting the lower oil chamber 505 and the oil tank 6, a valve is arranged on the pipeline six 16, a check valve seven 506 communicated from the lower oil chamber 505 to the upper oil chamber 504 is arranged on the piston 502, and the volume of oil flowing into the upper oil chamber from the lower oil chamber 505 is larger than the increased volume of the upper oil chamber 504 when the piston 502 is in the same stroke.
The valve is a five-way valve 17 communicated from the oil tank 6 to the lower oil chamber 505.
The arrangement of the invention can ensure that when the working cavity is the upper oil cavity 504 and hydraulic oil circulates in one direction in the upper oil cavity 504, the hydraulic oil passes through the damping part 2 in one direction and can ensure that a smooth damping force is obtained after passing through the throttle valve 19 in the damping branch 3.
As shown in fig. 10, when the piston 502 moves upward, the hydraulic oil in the upper oil chamber 504 passes through the head end of the damping part 2 and optionally passes through one or more damping branches 3 as required, and finally flows into the oil tank 6 from the tail end of the damping part 2, and simultaneously the lower oil chamber 505 sucks oil from the oil tank 6 through a pipeline six 16 and a one-way valve five 17; as shown in fig. 11, when the piston 502 moves downward, the hydraulic oil in the lower oil chamber 505 flows into the upper oil chamber 504 through the check valve seven 506, and simultaneously, since the volume of the hydraulic oil flowing into the upper oil chamber from the lower oil chamber 505 is larger than the increased volume of the upper oil chamber 504 on the same stroke of the piston 502, the hydraulic oil which is excessive in the upper oil chamber 504 flows into the head end of the damping part 2, and flows into the oil tank 6 from the tail end of the damping part 2 through one or more damping branches 3 as required.
When the working oil cavity is a lower oil cavity, the connection and the pipeline among the shock absorber 5, the integrated base 18 and the oil tank 6 are relatively complex, and a plurality of valves are provided, so that the advantages that the integrated base 18 is positioned below the damping vibration attenuation device, the electromagnet connecting cable of the electromagnetic valve 4 is easy to access, and a dust cover is easy to arrange above the damping device; when the working oil cavity is an upper oil cavity, the connection and the pipeline among the shock absorber 5, the integrated seat 18 and the oil tank 6 are relatively simple, and the valve is small, so that the defects that the integrated seat 18 is positioned above the damping vibration attenuation device, the electromagnet connecting cable of the electromagnetic valve 4 is long in wiring, a dust cover is difficult to arrange above the damping device, the working oil cavity further comprises a base 20, and the base 20 is used for sealing the lower end of the cylinder body 501 and installing the pipeline six 16 and the one-way valve five 17.
The specific working principle of the invention is as follows: assuming that when a certain automobile runs on a high-grade road and a rural gravel road, damping parameters of a hydraulic shock absorber at a certain position of the automobile are respectively parameter 1 and parameter 2, the damping parameters can be set to parameter 1 in the damping branch 1 and parameter 2 in the damping branch 2 through a selectable variable damping branch integrated base (the number of damping branches is 2, namely only damping branch 1 and damping branch 2, a solenoid valve 4 in the damping branch 1 is in a conducting position when power is lost, and a solenoid valve 4 in the damping branch 2 is in a stopping position when power is lost) of the selectable variable damping hydraulic shock absorber as shown in fig. 1 or fig. 9; an electric control switch is arranged near an automobile driver's cabin, the switch is manually arranged at the position of ' 1 ' when the automobile driver is driving on a highway, the electromagnetic valves of the damping branches 1 and 2 are both out of power and do not work through electric control, the damping branch 2 is closed, and the damping branch 1 is conducted to work; in a similar way, when the vehicle runs on a rural sandstone road, the switch is manually placed at the position of 2, the electromagnetic valves of the damping branch circuits 1 and 2 are all electrified to work through electrical control, the damping branch circuit 1 is closed, and the damping branch circuit 2 is conducted to work.
Assuming that 6 marshalled cars of a fixed marshalling vehicle group, namely a car A, a car B, a car C, a car D, a car E and a car F, do not need to be repeatedly operated on a fixed line, when the stationarity of each car is optimal, the damping parameter of a hydraulic shock absorber at a certain position is respectively damping parameter 1 of a first carriage, damping parameter 2 of a second carriage, damping parameter 3 of a third carriage, damping parameter 4 of a fourth carriage, damping parameter 5 of a fifth carriage and damping parameter 6 of a sixth carriage, the parameter 1 can be set on a damping branch 1 by a selectable variable damping branch integrated base (expanding the number of the damping branches to 6, namely the damping branch 1, the damping branch 2, the damping branch 3, the damping branch 4, the damping branch 5 and the damping branch 6, a solenoid valve of the damping branch 1 is of a normally open type, solenoid valves of other branches are of a normally closed type) of the selectable variable damping branch as shown in figure 1 or figure 9, the parameters 2, 3, 4, 5 and 6 are set in the damping branches 2, 3, 4, 5 and 6, respectively. The electric control switches are arranged near the driving platforms of the head car and the tail car of the fixed marshalling vehicle group, the switches are arranged at the position of 1 when the vehicle is driven in the positive direction (the A car is the head car), all the electromagnetic valves 4 in the selectable variable damping branch integrated base of the A car are not powered off and work through network or electric control, at the moment, the damping branches 2, 3, 4, 5 and 6 are closed, and the damping branch 1 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 2 of the vehicle B are electrified to work, at the moment, the damping branches 1, 3, 4, 5 and 6 are closed, and the damping branch 2 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 3 of the vehicle C are electrified to work, at the moment, the damping branches 1, 2, 4, 5 and 6 are closed, and the damping branch 3 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 4 of the vehicle D are electrified to work, at the moment, the damping branches 1, 2, 3, 5 and 6 are closed, and the damping branch 4 is conducted to work; electrifying the electromagnetic valves 4 of the damping branches 1 and 5 of the vehicle E to work, closing the damping branches 1, 2, 3, 4 and 6 at the moment, and conducting the damping branch 5 to work; and the electromagnetic valves 4 of the damping branches 1 and 6 of the F vehicle are electrified to work, at the moment, the damping branches 1, 2, 3, 4 and 5 are closed, and the damping branch 6 is conducted to work.
Similarly, when the vehicle F runs in the reverse direction (the vehicle F is the head vehicle), the switch is arranged at the position of 2, all the electromagnetic valves 4 in the selectable variable damping branch integrated base of the vehicle F are powered off and do not work under network or electric control, at the moment, the damping branches 2, 3, 4, 5 and 6 are closed, and the damping branch 1 is conducted and works; the electromagnetic valves 4 of the damping branches 1 and 2 of the vehicle E are electrified to work, at the moment, the damping branches 1, 3, 4, 5 and 6 are closed, and the damping branch 2 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 3 of the vehicle D are electrified to work, at the moment, the damping branches 1, 2, 4, 5 and 6 are closed, and the damping branch 3 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 4 of the vehicle C are electrified to work, at the moment, the damping branches 1, 2, 3, 5 and 6 are closed, and the damping branch 4 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 5 of the vehicle B are electrified to work, at the moment, the damping branches 1, 2, 3, 4 and 6 are closed, and the damping branch 5 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 6 of the vehicle A are electrified to work, at the moment, the damping branches 1, 2, 3, 4 and 5 are closed, and the damping branch 6 is conducted to work.
Assuming that a trackless vehicle group comprises 6 marshalling cars A, B, C, D, E and F, when the trackless vehicles do not start to run back and forth on a fixed line, when the stationarity of the vehicles is optimal, the damping parameters of the hydraulic shock absorber at a certain position are respectively the damping parameter 1 of the first and second carriages, the damping parameter 2 of the third and fourth carriages, the damping parameter 3 of the fifth carriage and the damping parameter 4 of the sixth carriage, the parameter 1 is set on the damping branch 1, the parameter 2 is set on the damping branch 2, the parameter 3 is set on the damping branch 3, and the parameter 4 is set on the damping branch 4 by the selectable variable damping branch integrated seat of the selectable variable damping hydraulic shock absorber shown in the figure 1 or the figure 9. The electric control switches are arranged near the trackless vehicle head-group vehicle and tail vehicle driving platforms, when the trackless vehicle is in forward driving (A vehicle is a head vehicle), the switches are arranged at 1 position, all the electromagnetic valves 4 in the selectable variable damping branch integrated seat of the A, B vehicle are powered off and do not work through network or electric control, at the moment, the damping branches 2, 3 and 4 are closed, and the damping branch 1 is conducted and works; the electromagnetic valves 4 of the damping branches 1 and 2 of the C, D vehicle are electrified to work, at the moment, the damping branches 1, 3 and 4 are closed, and the damping branch 2 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 3 of the vehicle E are electrified to work, at the moment, the damping branches 1, 2 and 4 are closed, and the damping branch 3 is conducted to work; and the electromagnetic valves 4 of the damping branches 1 and 4 of the F vehicle are electrified to work, at the moment, the damping branches 1, 2 and 3 are closed, and the damping branch 4 is conducted to work. Similarly, when the vehicle runs in the reverse direction (the vehicle F is the head vehicle), the switch is set to be in the position of 2, all the electromagnetic valves 4 in the selectable variable damping branch integrated seat of the vehicle F, E are powered off and do not work through network or electric control, at the moment, the damping branches 2, 3 and 4 are closed, and the damping branch 1 is conducted and works; the electromagnetic valves 4 of the damping branches 1 and 2 of the D, C vehicle are electrified to work, at the moment, the damping branches 1, 3 and 4 are closed, and the damping branch 2 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 3 of the vehicle B are electrified to work, at the moment, the damping branches 1, 2 and 4 are closed, and the damping branch 3 is conducted to work; the electromagnetic valves 4 of the damping branches 1 and 4 of the vehicle A are electrified to work, at the moment, the damping branches 1, 2 and 3 are closed, and the damping branch 4 is conducted to work.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to imply that the scope of the application is limited to these examples; within the context of the present application, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments in the present application as described above, which are not provided in detail for the sake of brevity.
It is intended that the one or more embodiments of the present application cover all such alternatives, modifications, and variations as fall within the broad scope of the present application. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present application are intended to be included within the scope of the present application.
Claims (9)
1. A damping vibration attenuation device with parallel damping branches is characterized by comprising a vibration absorber (5), an integrated base (18), a pipeline formed by the structure of the integrated base (18), a damping part (2) in the integrated base (18) and an oil tank (6) formed by the vibration absorber (5), an installation sleeve (1) and the integrated base (18), wherein the damping part (2) comprises two or more damping branches (3) which are connected in parallel, an electromagnetic valve (4) and a throttle valve (19) are sequentially arranged in the damping branch (3), the electromagnetic valve (4) comprises a switchable conducting position (401) and a cut-off position (402), the throttle valve (19) comprises a one-way valve six (1901) and a throttle hole (1902), one end of the damping branch (3) close to the electromagnetic valve (4) is connected into a head end of the damping part (2), and the other end of the damping branch is connected into a tail end of the damping part (2), the shock absorber (5) comprises a cylinder body (501), a piston (502) arranged in the cylinder body (501) in a sliding mode and a piston rod (503) connected with the piston (502), the shock absorber (5), the damping part (2) and the oil tank (6) form circulation through pipelines, when the piston (502) moves upwards or downwards, hydraulic oil enters the damping part (2) through the pipelines and passes through one or more damping branches (3), and different damping combinations are formed by selecting the situation that the hydraulic oil flows through the one or more damping branches (3) to act on the piston (502).
2. The damping vibration attenuation device with the parallel damping branches as claimed in claim 1, wherein the piston (502) divides the cylinder body (501) into an upper oil chamber (504) and a lower oil chamber (505), and when the working chamber is the lower oil chamber (505), the damping vibration attenuation device further comprises a first pipeline (7) connected with the lower oil chamber (505) and the head end of the damping part (2), a second pipeline (8) connected with the tail end of the damping part (2) and the oil tank (6), a third pipeline (9) connected with the head end of the oil tank (6) and the damping part (2), a fourth pipeline (10) connected with the tail end of the damping part (2) and the lower oil chamber (505), and a fifth pipeline (11) connected with the upper oil chamber (504) and the oil tank (6), and valves are arranged on the first pipeline (7), the second pipeline (8), the third pipeline (9) and the fourth pipeline (10).
3. The damping and shock-absorbing device with the parallel damping branch as claimed in claim 2, wherein said valve comprises a first check valve (12) disposed on the first pipeline (7) and communicated toward the head end of the damping member (2), a second check valve (13) disposed on the second pipeline (8) and communicated toward the oil tank (6), a third check valve (14) disposed on the third pipeline (9) and communicated toward the head end of the damping member (2), and a fourth check valve (15) disposed on the fourth pipeline (10) and communicated toward the lower oil chamber (505).
4. The parallel damping branch damping vibration attenuation device according to claim 2, characterized in that the first pipeline (7) and the third pipeline (9) are merged with each other, and the second pipeline (8) and the fourth pipeline (10) are merged with each other.
5. The damping device with the parallel damping branches as claimed in claim 1, wherein the piston (502) divides the cylinder body (501) into an upper oil chamber (504) and a lower oil chamber (505), when the upper oil chamber (504) is the working chamber, the head end of the damping part (2) is communicated with the upper oil chamber (504), the tail end of the damping part (2) is communicated with the oil tank (6), the damping device further comprises a pipeline six (16) connecting the lower oil chamber (505) and the oil tank (6), a valve is arranged on the pipeline six (16), a check valve seven (506) communicated from the lower oil chamber (505) to the upper oil chamber (504) is arranged on the piston (502), and the volume of hydraulic oil flowing into the upper oil chamber from the lower oil chamber (505) is larger than the volume increased by the upper oil chamber (504) when the piston (502) is in the same stroke.
6. The parallel damping branch damping vibration attenuation device according to claim 5, characterized in that the valve is a one-way valve five (17) communicated from the oil tank (6) to the lower oil chamber (505).
7. The parallel damping branch damping vibration attenuation device according to any one of claims 1 to 6, characterized in that the pipeline and the damping part (2) are distributed on the integrated seat (18).
8. The parallel damping branch damping vibration attenuation device according to any one of claims 1 to 6, characterized in that the vibration absorber (5) is fixedly arranged at one end of the integration seat (18).
9. The parallel damping branch damping vibration attenuation device according to claim 8, characterized in that a mounting sleeve (1) is further disposed outside the vibration absorber (5), and the mounting sleeve (1), the cylinder body (501) and the integrated base (18) form an oil tank (6).
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| CN114704588B (en) | 2024-01-09 |
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