CN216715093U - Series damping branch damping vibration attenuation device - Google Patents

Abstract

The utility model belongs to the field of damping vibration attenuation, and particularly relates to a series damping branch damping vibration attenuation device which comprises a vibration absorber, an integrated seat, a damping branch formed by an integrated seat structure and an oil tank formed by the vibration absorber, a mounting sleeve and the integrated seat, wherein the damping branch is provided with two or more than two throttling electromagnetic valves in series, each throttling electromagnetic valve comprises a switchable conduction hole site and a throttling hole site, each vibration 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 vibration absorber, the damping branch and the oil tank form circulation through a pipeline, the damping branch is provided with two or more than two throttling electromagnetic valves in series on the damping branch, each throttling electromagnetic valve comprises a switchable conduction hole site and a throttling hole site, so that the aim of selectively variable damping of the vibration absorber is achieved, and the throttling electromagnetic valves and the throttling valves are integrated in the integrated seat, the compactness of the device is greatly improved, and the device is convenient to install after integration and has application prospect.

Description

Series damping branch damping vibration attenuation device

Technical Field

The utility model belongs to the field of damping vibration attenuation, and particularly relates to a series 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 guided rubber-tyred vehicles without rails), the fixed marshalling transportation and the cross-track transportation of the mobile equipment vehicles are in higher proportion. At present, damping parameters of a cylindrical hydraulic shock absorber (or called a hydraulic shock absorber device) which is 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a damping device of a series damping branch circuit, which can quickly switch different damping parameters.

The utility model comprises a shock absorber, an integrated seat, a damping branch formed by an integrated seat structure and an oil tank formed by the shock absorber, a mounting sleeve and the integrated seat, wherein two or more throttling electromagnetic valves are arranged on the damping branch in series, each throttling electromagnetic valve comprises a switchable conduction hole site and a throttling hole site, each shock absorber comprises a cylinder body, a piston arranged in the cylinder body in a sliding mode and a piston rod connected with the piston, the shock absorber, the damping branch and the oil tank form circulation through a pipeline, when the piston moves upwards or downwards, hydraulic oil enters the damping branch through the pipeline and passes through one or more throttling hole sites, and different combinations of damping effects are formed by selecting the hydraulic oil to flow through the one or more throttling hole sites.

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 branch, a second pipeline for connecting the tail end of the damping branch and the oil tank, a third pipeline for connecting the oil tank and the head end of the damping branch, a fourth pipeline for connecting the tail end of the damping branch 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 branch, 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 branch, 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 branch is communicated with the upper oil cavity, the tail end of the damping branch 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 communicated from the lower oil cavity to the upper oil cavity is arranged on the piston, and the volume of hydraulic oil flowing into the upper oil cavity from the lower oil cavity is larger than the piston stroke volume of 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 throttle solenoid valve and the throttle valve 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 utility model has the advantages that two or more than two throttle solenoid valves are arranged on the damping branch in series, each throttle solenoid valve comprises a switchable conduction hole site and a throttle hole site, in application, one or more throttling hole sites can be selected according to requirements, so that the aim of selectively variable damping of the shock absorber is fulfilled, wherein, the aperture of each throttling hole can be the same or different, preferably, the aperture of each throttling hole is different, the range value of the selectable variable damping is enlarged, the selectable range is improved, the purpose that the movable equipment vehicle can move on lines with different grades is achieved, or the mobile equipment fixes vehicles at different positions in the group of marshalled vehicles on the same line or on different lines, the optimal damping parameters of the hydraulic shock absorber can be selected in a limited way, and the optimization of the comfort index and the safety index of the vehicle can be quickly and effectively achieved. And the throttle solenoid valve and the throttle valve are integrated in the integrated base, so that the structural characteristics of the integrated base are greatly utilized, the whole vibration reduction 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 prospects. The check valve VI in the throttling valve can ensure the one-way flow of the hydraulic oil in the damping branch, the size of the throttling hole in the throttling valve can be self-adjusted according to the pressure of the hydraulic oil flowing through the throttling valve and a return spring in the throttling valve, the damping force can be controlled to be smoother, 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 D-D of FIG. 4;

FIG. 9 is a sectional view taken along line E-E in FIG. 4;

FIG. 10 is a sectional view taken along line F-F of FIG. 4;

FIG. 11 is a simplified schematic diagram of a second embodiment of the present invention;

FIG. 12 is a hydraulic oil flow diagram when the piston moves downward according to the second embodiment of the present invention;

FIG. 13 is a hydraulic oil flow diagram when the piston moves upward according to the second embodiment of the present invention;

FIG. 14 is a front cross-sectional view of a second embodiment of the present invention;

FIG. 15 is a sectional view taken along line A-A of FIG. 12;

FIG. 16 is a sectional view taken along line B-B of FIG. 12;

FIG. 17 is a cross-sectional view taken along line C-C of FIG. 12;

FIG. 18 is a sectional view taken along line D-D of FIG. 12;

FIG. 19 is a sectional view taken along line E-E of FIG. 12;

fig. 20 is a sectional view taken along line F-F in fig. 12.

In the figures, 1-mounting the sleeve; 2-upper seat; 3-a damping branch; 301-damping line; 4-a throttle electromagnetic valve; 401-conducting hole sites; 402-a throttle hole site; 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-base.

Detailed Description

Example one

As shown in fig. 1-10, the shock absorber comprises a shock absorber 5, an integration seat 18, a damping branch 3 formed by the structure of the integration seat 18, and a tank 6 formed by the shock absorber 5, a mounting sleeve 1 and the integration seat 18, wherein the damping branch 3 comprises a damping pipeline 301 and two or more throttling electromagnetic valves 4 arranged in series on the damping pipeline 301, the throttling electromagnetic valves 4 comprise switchable conducting hole sites 401 and throttling hole sites 402, a throttle valve 19 is arranged on one side of the damping branch 3 on the two or more throttling electromagnetic valves 4, the throttle valve 19 comprises a check valve six 1901 and a throttle hole 1902 in series, the shock absorber 5 comprises a cylinder 501, a piston 502 arranged in the cylinder 501 in a sliding manner, and a piston rod 503 connected with the piston 502, the shock absorber 5, the damping branch 3 and the tank 6 are circulated through pipelines, when the piston 502 moves upwards or downwards, hydraulic oil is fed through a line into the damping branch 3 and through one or more of the throttle openings 402, by selecting the hydraulic oil to flow through one or more of the throttle openings 402 to provide different combinations of damping to the piston 502.

The utility model arranges two or more than two throttle solenoid valves 4 in series on a damping branch 3, the throttle solenoid valves 4 comprise switchable conducting hole sites 401 and throttle hole sites 402, in application, one throttle hole 402 or a plurality of throttle holes 402 can be selected according to requirements, so as to achieve the purpose of selectively damping the shock absorber 5, wherein, the aperture of each throttle hole 402 can be the same or different, preferably, the aperture of each throttle hole 402 is different, the range value of the selective variable damping is enlarged, the selectable range is improved, the purpose that the movable equipment vehicle can move on lines with different grades is achieved, or the vehicles at different positions in the group of fixedly grouped vehicles are on the same line or on different lines by the mobile equipment, the optimal damping parameters of the hydraulic shock absorber can be selected in a limited way, and the optimization of the comfort index and the safety index of the vehicle can be quickly and effectively achieved. And the throttle solenoid valve 4 and the throttle valve 19 are integrated in the integrated seat 18, so that the structural characteristics of the integrated seat are greatly utilized, the whole vibration damping structure is directly formed, the cost is reduced, and the compactness of the device is greatly improved.

The piston 502 divides the cylinder body 501 into an upper oil cavity 504 and a lower oil cavity 505, when the working cavity is the lower oil cavity 505, the working cavity further comprises a first pipeline 7 for connecting the lower oil cavity 505 and the head end of the damping branch 3, a second pipeline 8 for connecting the tail end of the damping branch 3 and the oil tank 6, a third pipeline 9 for connecting the oil tank 6 and the head end of the damping branch 3, a fourth pipeline 10 for connecting the tail end of the damping branch 3 and the lower oil cavity 505, and a fifth pipeline 11 for connecting the upper oil cavity 504 and the oil tank 6, wherein valves are arranged on the first pipeline 7, the second pipeline 8, the third pipeline 9 and the fourth pipeline 10.

The valves comprise a first check valve 12 which is arranged on a first pipeline 7 and is communicated towards the head end of the damping branch 3, a second check valve 13 which is arranged on a second pipeline 8 and is communicated towards the oil tank 6, a third check valve 14 which is arranged on a third pipeline 9 and is communicated towards the head end of the damping branch 3, and a fourth check valve 15 which is arranged on a fourth pipeline 10 and is communicated 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.

The arrangement of the utility model 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 branch 3 in one direction and can ensure that smooth damping force is obtained after passing through the throttle valve 19.

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 branch 3 through the first pipeline 7 and the first check valve 12, and selects one or more throttling hole sites 402 of the multiple throttling electromagnetic valves 4 to be in a communicated state as required, and finally flows into the oil tank 6 from the tail end of the damping branch 3, 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 branch 3 through the third pipeline 9 and the third check valve 14, and one or more throttle holes 402 in the plurality of throttle solenoid valves 4 are selected to be in a communicated state as required, and finally flows into the lower oil chamber 505 from the tail end of the damping branch 3, the fourth pipeline 10 and the fourth check valve 15, and the hydraulic oil in the upper oil chamber 504 is discharged to the oil tank 6 through the fifth pipeline 11.

The throttling electromagnetic valve 4 and the throttling valve are distributed on the integrated base 18, and 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 of the integrated base 18 is 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 2, and the upper base 2 seals the mounting sleeve 1 and is in sliding sealing fit with the piston rod 503.

Example two

The difference between the present embodiment and the first embodiment is that the working chamber of the present embodiment is an upper oil chamber, specifically:

as shown in fig. 11-20, 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 branch 3 is communicated with the upper oil chamber 504, the tail end of the damping branch 3 is communicated with the oil tank 6, the hydraulic cylinder 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 stroke volume of the piston 502 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 cavity 505.

The arrangement of the utility model 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 branch 3 in one direction and can ensure that a smooth damping force is obtained after passing through the throttle valve 19.

As shown in fig. 12, 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 meanwhile, because the piston 502 is in the same stroke, the volume of the hydraulic oil flowing into the upper oil chamber 505 from the lower oil chamber is larger than the stroke volume of the piston 502 in the upper oil chamber 504, the hydraulic oil in the upper oil chamber 504 flows into the head end of the damping branch 3, and one or more throttling hole sites 402 in the multiple throttling electromagnetic valves 4 are selected to be in a communicated state as required, and finally flows into the oil tank 6 from the tail end of the damping branch 3; as shown in fig. 13, when the piston 502 moves upward, the hydraulic oil in the upper oil chamber 504 passes through the head end of the damping branch 3, and the throttle hole 402 of one or more of the plurality of throttle solenoid valves 4 is selected to be in a communicated state as required, and finally flows into the oil tank 6 from the tail end of the damping branch 3, and simultaneously the lower oil chamber 505 sucks oil from the oil tank 6 through the pipeline six 16 and the check valve five 17.

When the working oil cavity is a lower oil cavity, the connection and the pipeline among the shock absorber 5, the integrated seat 18 and the oil tank 6 are relatively complex, and a plurality of valves are provided, so that the advantages that the integrated seat 18 is positioned below the damping vibration attenuation device, the electromagnet connecting cable of the throttling 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 throttling 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 utility model is as follows: assuming that when a certain automobile runs on a high-grade road and a rural gravel road, the damping parameters of the hydraulic shock absorber at a certain position are respectively parameter 1 and parameter 2, the parameter 1 can be set on the throttle solenoid valve 1 and the parameter 2 can be set on the throttle solenoid valve 2 through the selectable variable damping branch integrated seat (the number of the throttle solenoid valves is 2, namely only the throttle solenoid valves 1 and 2, the throttle solenoid valve 1 is at the throttle hole position 402 when power is lost, and the throttle solenoid valve 2 is at the conduction hole position 401 when power is lost) of the selectable variable damping hydraulic shock absorber as shown in fig. 1 or fig. 11; an electric control switch is arranged near an automobile driver's cab, the switch is manually arranged at the position of ' 1 ' when the automobile driver is driving on a highway, the electromagnetic valves of the throttle electromagnetic valves 1 and 2 are both powered off and do not work through electric control, the throttle electromagnetic valve 2 is positioned at a conduction hole position 401 and does not work at a throttle hole position 402, and the throttle electromagnetic valve 1 is positioned at the throttle hole position 402 and works at the throttle hole position 402; similarly, when the vehicle runs on a rural sandstone road, the switch is manually placed at the position of 2, the electromagnetic valves of the throttle electromagnetic valves 1 and 2 are electrically controlled to work, the throttle electromagnetic valve 1 is positioned at the conduction hole position 401, the throttle hole position 402 does not work, and the throttle electromagnetic valve 2 is positioned at the throttle hole position 402, and the throttle hole position 402 works.

Assuming that 6 marshalled vehicles A, B, C, D, E and F in a fixed marshalling vehicle group are not started to run back and forth on a fixed line, when the stationarity of each vehicle is optimal, the damping parameters of a hydraulic shock absorber at a certain position are respectively damping parameter 1 in a first compartment, damping parameter 2 in a second compartment, damping parameter 3 in a third compartment, damping parameter 4 in a fourth compartment, damping parameter 5 in a fifth compartment and damping parameter 6 in a sixth compartment, the damping parameters can be controlled by a selectable variable damping branch integrated seat (expanding the number of the throttling electromagnetic valves to 6, namely the throttling electromagnetic valves 1, 2, 3, 4, 5 and 6, the throttling electromagnetic valve 1 is in a throttling electromagnetic hole position 402 when power is lost, other throttle solenoid valves are in a conduction hole 401 when power is lost) sets a parameter 1 at the throttle solenoid valve 1, sets a parameter 2 at the throttle solenoid valve 2, sets a parameter 3 at the throttle solenoid valve 3, sets a parameter 4 at the throttle solenoid valve 4, sets a parameter 5 at the throttle solenoid valve 5, and sets a parameter 6 at the throttle solenoid valve 6. Arranging electric control switches near the driving platforms of the head cars and the tail cars of the fixed marshalling vehicle group, arranging the switches at the position of 1 when the vehicle is driven in the forward direction (the A car is the head car), controlling the electromagnetic valves of all the throttling electromagnetic valves in the selectable variable damping branch integrated seats of the A car to be powered off and not work through a network or electric control, wherein the throttling electromagnetic valves 2, 3, 4, 5 and 6 are positioned at a conduction hole position 401 and do not work at a throttling hole position 402, and the throttling electromagnetic valve 1 is positioned at the throttling hole position 402 and works at the throttling hole position 402; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 2 of the vehicle B for working, wherein the throttle electromagnetic valves 1, 3, 4, 5 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 2 is positioned at the throttle hole site 402, and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 3 of the vehicle C to work, wherein the throttle electromagnetic valves 1, 2, 4, 5 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 3 is positioned at the throttle hole site 402, and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 4 of the vehicle D to work, wherein the throttle electromagnetic valves 1, 2, 3, 5 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 4 is positioned at the throttle hole site 402, and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 5 of the vehicle E to work, wherein the throttle electromagnetic valves 1, 2, 3, 4 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 5 is positioned at the throttle hole site 402, and the throttle hole site 402 works; the electromagnetic valves of the throttle electromagnetic valves 1 and 6 of the F vehicle are electrified to work, at the moment, the throttle electromagnetic valves 1, 2, 3, 4 and 5 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, and the throttle electromagnetic valve 6 is positioned at the throttle hole site 402, and the throttle hole site 402 works. Similarly, when the vehicle F runs in the reverse direction (the vehicle F is a head vehicle), the switch is arranged at the position of 2, the electromagnetic valves of all the throttling electromagnetic valves in the selectable variable damping branch integrated seat of the vehicle F are all powered off and do not work under network or electric control, at the moment, the throttling electromagnetic valves 2, 3, 4, 5 and 6 are positioned at the conduction hole site 401, the throttling hole site 402 does not work, the throttling electromagnetic valve 1 is positioned at the throttling hole site 402, and the throttling hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 2 of the vehicle E to work, wherein the throttle electromagnetic valves 1, 3, 4, 5 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 2 is positioned at the throttle hole site 402, and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 3 of the vehicle D to work, wherein the throttle electromagnetic valves 1, 2, 4, 5 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 3 is positioned at the throttle hole site 402, and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 4 of the vehicle C to work, wherein the throttle electromagnetic valves 1, 2, 3, 5 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 4 is positioned at the throttle hole site 402, and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 5 of the vehicle B to work, wherein the throttle electromagnetic valves 1, 2, 3, 4 and 6 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, and the throttle electromagnetic valve 5 is positioned at the throttle hole site 402, and the throttle hole site 402 works; the electromagnetic valves of the throttle electromagnetic valves 1 and 6 of the vehicle A are electrified to work, at the moment, the throttle electromagnetic valves 1, 2, 3, 4 and 5 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, and the throttle electromagnetic valve 6 is positioned at the throttle hole site 402, and the throttle hole site 402 works.

Assuming that a trackless vehicle group comprises 6 marshalling cars A, B, C, D, E and F, when the trackless vehicle group does not change head to and fro on a fixed line, when the stationarity of each vehicle is optimal, the damping parameters of a hydraulic shock absorber at a certain position are respectively damping parameter 1 in the first and second carriages, damping parameter 2 in the third and fourth carriages, damping parameter 3 in the fifth carriage and damping parameter 4 in the sixth carriage, the damping parameters can be set by the damping-selectable branch integrated seat of the damping-selectable hydraulic shock absorber shown in figure 1 or figure 11 at the throttle solenoid valve 1, parameter 2 in the throttle solenoid valve 2, parameter 3 in the throttle solenoid valve 3 and parameter 4 in the throttle solenoid valve 4. The electric control switches are arranged near the headblock vehicle and the tail vehicle driving platform of the trackless vehicle, when the trackless vehicle is in forward driving (the vehicle A is the head vehicle), the switches are arranged at the position of '1', the electromagnetic valves of all the throttling electromagnetic valves in the selectable variable damping branch integrated seat of the vehicle A, B are all powered off and do not work under network or electric control, at the moment, the throttling electromagnetic valves 2, 3 and 4 are positioned at a conduction hole position 401, the throttling hole position 402 does not work, the throttling electromagnetic valve 1 is positioned at the throttling hole position 402, and the throttling hole position 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 2 of the C, D vehicle for work, wherein the throttle electromagnetic valves 1, 3 and 4 are positioned at the conduction hole site 401 and the throttle hole site 402 does not work at the moment, and the throttle electromagnetic valve 2 is positioned at the throttle hole site 402 and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 3 of the vehicle E to work, wherein the throttle electromagnetic valves 1, 2 and 4 are positioned at the conduction hole site 401 and the throttle hole site 402 does not work at the moment, and the throttle electromagnetic valve 3 is positioned at the throttle hole site 402 and the throttle hole site 402 works; the electromagnetic valves of the throttle electromagnetic valves 1 and 4 of the F vehicle are electrified to work, at the moment, the throttle electromagnetic valves 1, 2 and 3 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the throttle electromagnetic valve 4 is positioned at the throttle hole site 402, and the throttle hole site 402 works. 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, the electromagnetic valves of all the throttle electromagnetic valves in the selectable variable damping branch integrated seat of the vehicle F, E are all powered off and do not work under the network or electric control, at the moment, the throttle electromagnetic valves 2, 3 and 4 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, and the throttle electromagnetic valve 1 is positioned at the throttle hole site 402, and the throttle hole site 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 2 of the D, C vehicle to work, wherein the throttle electromagnetic valves 1, 3 and 4 are positioned in a conduction hole position 401, the throttle hole position 402 does not work, the throttle electromagnetic valve 2 is positioned in the throttle hole position 402, and the throttle hole position 402 works; electrifying the electromagnetic valves of the throttle electromagnetic valves 1 and 3 of the vehicle B to work, wherein the throttle electromagnetic valves 1, 2 and 4 are positioned at the conduction hole site 401 and the throttle hole site 402 does not work at the moment, and the throttle electromagnetic valve 3 is positioned at the throttle hole site 402 and the throttle hole site 402 works; the electromagnetic valves of the throttle electromagnetic valves 1 and 4 of the vehicle A are electrified to work, at the moment, the throttle electromagnetic valves 1, 2 and 3 are positioned at the conduction hole site 401, the throttle hole site 402 does not work, the damping branch 4 is positioned at the throttle hole site 402, and the throttle hole site 402 works.

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 device of a series damping branch is characterized by comprising a shock absorber (5), an integrated base (18), a damping branch (3) formed by the structure of the integrated base (18) and an oil tank (6) formed by the shock absorber (5), a mounting sleeve (1) and the integrated base (18), wherein two or more than two throttling electromagnetic valves (4) are arranged on the damping branch (3) in series, each throttling electromagnetic valve (4) comprises a switchable conduction hole site (401) and a throttling hole site (402), 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 branch (3) and the oil tank (6) form circulation through pipelines, when the piston (502) moves upwards or downwards, hydraulic oil enters the damping branch (3) through the pipelines and passes through one or more throttling hole sites (402), by selecting the hydraulic fluid to flow through one or more of the orifice locations (402), different combinations of damping effects are imparted to the piston (502).

2. The damping vibration attenuation device with the series damping branch circuits 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 branch circuit (3), a second pipeline (8) connected with the tail end of the damping branch circuit (3) and the oil tank (6), a third pipeline (9) connected with the head end of the oil tank (6) and the head end of the damping branch circuit (3), a fourth pipeline (10) connected with the tail end of the damping branch circuit (3) 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. A damping and shock-absorbing device with a series damping branch as claimed in claim 2, wherein said valve comprises a first check valve (12) disposed on the first pipe (7) and communicating toward the head end of the damping branch (3), a second check valve (13) disposed on the second pipe (8) and communicating toward the tank (6), a third check valve (14) disposed on the third pipe (9) and communicating toward the head end of the damping branch (3), and a fourth check valve (15) disposed on the fourth pipe (10) and communicating toward the lower oil chamber (505).

4. The series damping branch damping vibration damping device according to claim 2, wherein said first pipe (7) and said third pipe (9) are merged with each other, and said second pipe (8) and said fourth pipe (10) are merged with each other.

5. The damping device with the series damping branch 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 branch (3) is communicated with the upper oil chamber (504), the tail end of the damping branch (3) 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 stroke volume of the piston (502) of the upper oil chamber (504) when the piston (502) is in the same stroke.

6. The damping device of series damping branch as claimed in claim 5, wherein said valve is a check valve five (17) communicating from the oil tank (6) to the oil chamber (505).

7. The series damping branch damping vibration attenuation device according to any one of claims 1 to 6, characterized in that the throttle solenoid valve (4) and the throttle valve (19) are distributed on the integration seat (18).

8. The series 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 damping device of the serial damping branch circuit according to claim 8, wherein the outer side of the shock absorber (5) is further provided with a mounting sleeve (1), and the mounting sleeve (1), the cylinder body (501) and the integrated base (18) form an oil tank (6).

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