CN201827285U - Constant-pressure damping control buffer system - Google Patents
Constant-pressure damping control buffer system Download PDFInfo
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- CN201827285U CN201827285U CN201020555410XU CN201020555410U CN201827285U CN 201827285 U CN201827285 U CN 201827285U CN 201020555410X U CN201020555410X U CN 201020555410XU CN 201020555410 U CN201020555410 U CN 201020555410U CN 201827285 U CN201827285 U CN 201827285U
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- hydraulic cylinder
- oil
- valve
- oil hydraulic
- buffer system
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Abstract
The utility model relates to a constant-pressure damping control buffer system, which belongs to the technical field of hydraulic buffer, and comprises a first hydraulic cylinder, a second hydraulic cylinder, a first one-way valve, a second one-way valve, a first one-way overflow valve, a second one-way overflow valve and a pressure regulating valve. A rodless cavity of the second hydraulic cylinder, a rod cavity of the first hydraulic cylinder, the first one-way valve, the pressure regulating valve, the first one-way overflow valve, a rod cavity of the second hydraulic cylinder and a rodless cavity of the first hydraulic cylinder are sequentially connected in series to form a first oil way; and the rodless cavity of the first hydraulic cylinder, the rod cavity of the second hydraulic cylinder, the second one-way valve, the pressure regulating valve, the second one-way overflow valve, the rod cavity of the first hydraulic cylinder and the rodless cavity of the second hydraulic cylinder are sequentially in pipeline series connection to form a second oil way. The constant-pressure damping control buffer system is ingenious in design, low in production cost, convenient in maintenance and fine in buffer effect, and has the functions of locking and safety protection.
Description
Technical field
The utility model relates to vehicle with damping shock absorption control system technical field, relates in particular to a kind of constant voltage damping control buffer system.
Background technique
Along with developing rapidly of China auto manufacturing, various vehicle manufacturing industry are also being advanced by leaps and bounds, and characteristics such as articulated bus is big with its handling capacity of passengers, utilization factor height big and medium-sized cities at home obtain promoting gradually.Articulated coach generally is made up of the chassis articulated system in compartment before and after compartment, front and back and the connection, and wherein the hydraulic buffer system in the articulated system of chassis is the key factor of restriction articulator performance; The hydraulic buffer system of articulated coach generally is made up of two oil hydraulic cylinders, hydraulic controller and electric control system, oil hydraulic cylinder is by the size of its output resistance of hydraulic controller control change, electric control system is according to the turn inside diameter angle, signal to hydraulic controller, make the different force value of its conversion.
In the prior art, hydraulic buffer system has oil path built-in and the external two kinds of structures of oil circuit, oil path built-in structure level of integration height, take up room little, but processing request height, maintenance is complicated; The external hydraulic buffer system structure of oil circuit is complicated, it is big to take up room, but it is because easy to maintenance, in articulator, be used widely always, the external hydraulic damping device of a kind of oil circuit is disclosed as Chinese patent CN201086607, it rotates the control hydraulic damping by mandrel, thereby the damping of conversion buffering hydraulic control system, though this control system can form different dampings according to the variation of vehicle angle, before preventing, back car shearing aspect plays positive effect, but the mandrel structure is complicated, the requirement on machining accuracy height, cost is higher, and installation connects miscellaneous, also leakage of oil can occur sometimes, shortcomings such as the stuck or electrical malfunction of spool.
Simultaneously, because buffering damping of the prior art can not be precisely controlled, the driver during particularly big turning, tends to have an accident because angle of turn is much when driving articulator, causes personnel's the injures and deaths and the loss of property.
The model utility content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, and a kind of simple and practical constant voltage damping control buffer system is provided, and the utility model design is ingenious, cost of production is low, easy to maintenance, good buffer effect.
To achieve these goals, the utility model provides a kind of constant voltage damping control buffer system, comprise first oil hydraulic cylinder and second oil hydraulic cylinder, described first oil hydraulic cylinder and described second oil hydraulic cylinder comprise rod chamber and rodless cavity respectively, described constant voltage damping control buffer system also comprises first one-way valve, second one-way valve, the first unidirectional relief valve, second unidirectional relief valve and the pressure regulator valve, the described second oil hydraulic cylinder rodless cavity, the first oil hydraulic cylinder rod chamber, first one-way valve, pressure regulator valve, the first unidirectional relief valve, the second oil hydraulic cylinder rod chamber and the first oil hydraulic cylinder rodless cavity are followed in series to form first oil circuit; The described first oil hydraulic cylinder rodless cavity, the second oil hydraulic cylinder rod chamber, second one-way valve, pressure regulator valve, the second unidirectional relief valve, the first oil hydraulic cylinder rod chamber and the second oil hydraulic cylinder rodless cavity pipeline series connection successively constitute second oil circuit.
Preferably, described first oil circuit also comprises first solenoid valve, described second oil circuit also comprises second solenoid valve, and described first solenoid valve is connected between first oil hydraulic cylinder and described first one-way valve, and described second solenoid valve is connected between described second oil hydraulic cylinder and described second one-way valve
Preferably, described first oil circuit and second oil circuit form the backflow oil circuit, and described backflow oil circuit is provided with accumulator and pouring orifice, and described accumulator and described pouring orifice are arranged between described pressure regulator valve and the second unidirectional relief valve and the first unidirectional relief valve.
More preferably, described constant voltage damping control buffer system also comprises integrated package, and all oil circuits and valve arrangement all are arranged in the described integrated package.
The utlity model has following beneficial effect:
1. pressure control is simple, does not need electrical control or rotational valve core can produce the buffering resistance, can not occur leakage of oil basically, spool is stuck and electrical malfunction etc., greatly reduces rate of fault.
2. low cost of manufacture is safeguarded easy for installationly, need not use the expensive integrated device of processing or make the high rotary valve of machining accuracy, greatly reduces manufacture cost, has improved the competitive ability on market.
3. when the turn inside diameter angle is excessive, can play the function of super angle locking and safety protection.
Description of drawings:
Fig. 1 is the utility model constant voltage damping control buffer system schematic diagram
Integrated package plan view in Fig. 2 the utility model specific embodiment
Integrated package stereogram two in Fig. 3 the utility model specific embodiment
Fig. 4 the utility model constant voltage damping control buffer system assembly schematic representation
Embodiment:
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
As shown in Figure 1, the utility model relates to a kind of constant voltage damping control buffer system, comprise first oil hydraulic cylinder 1 and second oil hydraulic cylinder 2, described first oil hydraulic cylinder 1 is divided into rod chamber 11 and rodless cavity 12 by piston, described second oil hydraulic cylinder 2 is divided into rod chamber 21 and rodless cavity 22 by piston, described constant voltage damping control buffer system also comprises first one-way valve 3, second one-way valve 4, the first unidirectional relief valve 6, second unidirectional relief valve 7 and the pressure regulator valve 5, the described second oil hydraulic cylinder rodless cavity 22, the first oil hydraulic cylinder rod chamber 11, first one-way valve 3, pressure regulator valve 5, the first unidirectional relief valve 6, the second oil hydraulic cylinder rod chamber 21 and the first oil hydraulic cylinder rodless cavity 12 are followed in series to form first oil circuit; The described first oil hydraulic cylinder rodless cavity 12, the second oil hydraulic cylinder rod chamber 21, second one-way valve 4, pressure regulator valve 5, the second unidirectional relief valve 7, the first oil hydraulic cylinder rod chamber 11 and the second oil hydraulic cylinder rodless cavity 22 pipeline series connection successively constitute second oil circuit.
Described pressure regulator valve 5 plays the effect of constant hydraulic damping.Described unidirectional relief valve both can play the effect of one-way valve, can play the safety protection effect in the hyperbaric environment pressure of dropping again.
Preferably, described first oil circuit also comprises first solenoid valve 8, described second oil circuit also comprises second solenoid valve 9, described first solenoid valve 8 is connected between first oil hydraulic cylinder 1 and described first one-way valve 3, and described second solenoid valve 9 is connected between described second oil hydraulic cylinder 2 and described second one-way valve 4.When two solenoid valves are normally opened, the oil circuit proper flow; When closing one of them solenoid valve, can disconnect corresponding oil circuit, corresponding being obstructed of action meeting of oil hydraulic cylinder played buffer function.
Preferably, described first oil circuit and second oil circuit form backflow oil circuit 20, described backflow oil circuit is provided with accumulator 25 and pouring orifice 10, described accumulator 25 and described pouring orifice 10 are arranged between described pressure regulator valve 5 and the second unidirectional relief valve 7 and the first unidirectional relief valve 6, described accumulator 25 plays the effect of oil storage or repairing in the process of first oil hydraulic cylinder 1 and 2 mutual do motions in the other direction of second oil hydraulic cylinder and mutual repairing, described pouring orifice 10 plays the effect of injecting an amount of hydraulic oil for whole system.
In this specific embodiment, as Fig. 2-shown in Figure 4, described constant voltage damping control buffer system also comprises integrated package 13, all oil circuits and valve arrangement all are arranged in the described integrated package, all oil circuits are all arranged and are mounted on the integrated package by the geometric position of oilhole break-make and all valve members, shown in Fig. 2-4, the upper end of described integrated package 13 is provided with two solenoid valves, the lower end of described integrated package 13 is provided with two unidirectional relief valves, sidepiece is respectively arranged with two first joints 14 and two second joints 15, the rear portion is provided with two one-way valves, described integrated package 13 sidepieces also are provided with pouring orifice 10, anterior pipeline connection accumulator 25, integrated package that realization is set is highly integrated, save the space.Described integrated package 13 is respectively by first joint 14 and second joint, 15 pipeline connection left hydraulic cylinders 31 and right oil hydraulic cylinder 32.
The utility model control principle is as follows:
As shown in Figure 1, when first oil hydraulic cylinder 1 shrinks, when second oil hydraulic cylinder 2 stretches, hydraulic oil begins oil extraction in the rodless cavity 12 of first oil hydraulic cylinder 1 and the rod chamber of second oil hydraulic cylinder 2 21, the right oil circuit belongs to the oil extraction oil circuit among the figure at this moment, hydraulic oil produces back pressure during through the pressure regulator valve 5 in second oil circuit, the force value of back pressure is regulated setting by pressure regulator valve, hydraulic oil passes through backflow oil circuit 20 again, because the right oil circuit is that the pressure oil circuit is arranged among the figure, so hydraulic oil can be opened the one-way valve of the second unidirectional relief valve 7 behind backflow oil circuit 20, repairing in the first oil hydraulic cylinder rod chamber 11 and the second oil hydraulic cylinder rodless cavity 22, this moment, the second unidirectional relief valve 10 played the effect of one-way valve.
When 1 contraction of first oil hydraulic cylinder, when second oil hydraulic cylinder 2 stretches and surpasses the scope of setting, close second solenoid valve 9, hydraulic oil in the rodless cavity 12 of first oil hydraulic cylinder 1 and the rod chamber 21 of second oil hydraulic cylinder 2 can not continue to discharge, because the incompressibility of liquid, pressure between the rodless cavity 12 of first oil hydraulic cylinder 1 and the rod chamber of second oil hydraulic cylinder 21 to second solenoid valves 9 rises rapidly, stops first oil hydraulic cylinder 1 to continue to shrink or the 2 continuation stretchings of second oil hydraulic cylinder; When force value that force value is set greater than the first unidirectional relief valve 6, the relief valve of the first unidirectional relief valve 6 is opened pressure release, plays the safety protection effect; When force value is lower than the force value that the first unidirectional relief valve 6 is set, in the time of can overcoming institute and act on two power on the oil hydraulic cylinder, first oil hydraulic cylinder stops to shrink, and second oil hydraulic cylinder stops stretching, plays the locking effect.
Because a variety of causes, the oil mass of the hydraulic oil that the rodless cavity 12 of first oil hydraulic cylinder 1 and the rod chamber of second oil hydraulic cylinder 2 21 are discharged and the first oil hydraulic cylinder rod chamber 11 and the second oil hydraulic cylinder rodless cavity 22 need additional oil mass unequal, accumulator 25 perhaps stores unnecessary oil to first oil hydraulic cylinder 1 and 2 repairings of second oil hydraulic cylinder at this moment.
In like manner, when 2 contractions of second oil hydraulic cylinder, when first oil hydraulic cylinder 1 stretches, hydraulic oil begins oil extraction in the second oil hydraulic cylinder rodless cavity 22 and the first oil hydraulic cylinder rod chamber 11, left side oil circuit belongs to the oil extraction oil circuit among the figure at this moment, hydraulic oil produces back pressure during through the pressure regulator valve 5 in first oil circuit, the force value of back pressure also can be regulated setting, hydraulic oil passes through backflow oil circuit 20 again, and open the first unidirectional relief valve 6, repairing in the second oil hydraulic cylinder rod chamber 21 and the first oil hydraulic cylinder rodless cavity 12, this moment, the first unidirectional relief valve 6 played the effect of one-way valve.
When 2 contractions of second oil hydraulic cylinder, when first oil hydraulic cylinder 1 stretches and surpasses the scope of setting, close first solenoid valve 8, hydraulic oil in the second oil hydraulic cylinder rodless cavity 22 and the first oil hydraulic cylinder rod chamber 11 can not continue to discharge, pressure between the rod chamber 11 of first oil hydraulic cylinder 1 and the rodless cavity of second oil hydraulic cylinder 22 to first solenoid valves 8 rises rapidly, stops first oil hydraulic cylinder 1 to continue to stretch or the 2 continuation contractions of second oil hydraulic cylinder; When force value that force value is set greater than the second unidirectional relief valve 7, the relief valve of the second unidirectional relief valve 7 is opened pressure release, plays the safety protection effect; When force value is lower than the force value that the second unidirectional relief valve 7 is set, in the time of can overcoming institute and act on two power on the oil hydraulic cylinder, second oil hydraulic cylinder stops to shrink, and first oil hydraulic cylinder stops stretching, plays the locking effect.
In the oil circuit process of circulation, accumulator 25 also can play the function of repairing or oil storage, wherein, plays the effect of constant hydraulic damping when flowing through pressure regulator valve 5.
Specifically, the utility model constant voltage damping control buffer system is applicable to the hydraulic damping system of articulated coach, as shown in Figure 4, articulated system comprises side arm 33, after-frame 35 and left and right sides oil hydraulic cylinder, described side arm and after-frame are realized rotating by turntable bearing, the hydraulic damping system of articulated coach uses the left hydraulic cylinder 31 and the right oil hydraulic cylinder 32 of symmetry each other, left hydraulic cylinder 31 is connected side arm assembly 33 and articulated system rear cross beam 34 respectively with right oil hydraulic cylinder 32 two ends, at this moment, left hydraulic cylinder 31 is equivalent to first oil hydraulic cylinder 1, and right oil hydraulic cylinder 32 is equivalent to second oil hydraulic cylinder 2, works as Ackermann steer angle, must there be an oil hydraulic cylinder to stretch, and another oil hydraulic cylinder compression (as shown in Figure 2).When articulator was kept straight on, the piston of left hydraulic cylinder 31 and right oil hydraulic cylinder 32 all was in the neutral position; When vehicle turned left, left hydraulic cylinder 31 was compressed power and shrinks, and right oil hydraulic cylinder 32 is subjected to tensile force and stretches out, and its oil circuit control does not repeat them here; When the angle of vehicle left-hand bend surpasses the scope of setting, vehicle electrically controlling system outside the utility model passes through trigger switch, close second solenoid valve 9, because the hydraulic oil in left hydraulic cylinder 31 and the right oil hydraulic cylinder 32 can not continue to discharge, stop left hydraulic cylinder 31 to continue to shrink or the 32 continuation stretchings of right oil hydraulic cylinder; When force value during greater than the force value set, the relief valve of the first unidirectional relief valve 6 is opened pressure release, plays the safety protection effect; When force value is lower than the force value that the first unidirectional relief valve 6 is set, in the time of can overcoming vehicle and act on two power on the oil hydraulic cylinder, first oil hydraulic cylinder stops to shrink, and second oil hydraulic cylinder stops stretching, plays the locking effect.This moment, locking was relative, and left hydraulic cylinder can stretch out, and right oil hydraulic cylinder can shrink this moment.Vehicle stops vehicle further to increase angle of turn, but allows vehicle to return to the craspedodrome state relatively, plays the safety protection effect.
In like manner, when vehicle was turned right, left hydraulic cylinder 31 was subjected to tensile force and stretches out, and right oil hydraulic cylinder 32 is compressed power and shrinks; When the angle of vehicle right-hand bend surpassed the scope of setting, automatical control system was closed first solenoid valve 8 by trigger switch, stoped the vehicle continuation to be turned right, and played the function of super angle locking and safety protection.
To sum up; the utility model constant voltage damping control design cushion system is ingenious, level of integration is high, compactness simple for structure, cost of production are low, easy to maintenance; good buffer effect; by the effect that pressure regulator valve plays constant hydraulic damping is set, unidirectional relief valve also makes vehicle possess the function of super angle locking and safety protection.
In this specification, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (4)
1. buffer system is controlled in the constant voltage damping, comprise first oil hydraulic cylinder and second oil hydraulic cylinder, described first oil hydraulic cylinder and described second oil hydraulic cylinder comprise rod chamber and rodless cavity respectively, it is characterized in that: described constant voltage damping control buffer system also comprises first one-way valve, second one-way valve, the first unidirectional relief valve, second unidirectional relief valve and the pressure regulator valve, and the described second oil hydraulic cylinder rodless cavity, the first oil hydraulic cylinder rod chamber, first one-way valve, pressure regulator valve, the first unidirectional relief valve, the second oil hydraulic cylinder rod chamber and the first oil hydraulic cylinder rodless cavity are followed in series to form first oil circuit; The described first oil hydraulic cylinder rodless cavity, the second oil hydraulic cylinder rod chamber, second one-way valve, pressure regulator valve, the second unidirectional relief valve, the first oil hydraulic cylinder rod chamber and the second oil hydraulic cylinder rodless cavity pipeline series connection successively constitute second oil circuit.
2. constant voltage damping control buffer system according to claim 1, it is characterized in that: described first oil circuit also comprises first solenoid valve, described second oil circuit also comprises second solenoid valve, described first solenoid valve is connected between first oil hydraulic cylinder and described first one-way valve, and described second solenoid valve is connected between described second oil hydraulic cylinder and described second one-way valve.
3. according to claim 1 or the described constant voltage damping control of claim 2 buffer system, it is characterized in that: described first oil circuit and second oil circuit form the backflow oil circuit, described backflow oil circuit is provided with accumulator and pouring orifice, and described accumulator and described pouring orifice are arranged between described pressure regulator valve and the second unidirectional relief valve and the first unidirectional relief valve.
4. according to claim 1 or the described constant voltage damping control of claim 2 buffer system, it is characterized in that: described adaptive damping control buffer system also comprises integrated package, and all oil circuits and valve arrangement all are arranged in the described integrated package.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020555410XU CN201827285U (en) | 2010-10-11 | 2010-10-11 | Constant-pressure damping control buffer system |
| PCT/CN2010/080488 WO2011143917A1 (en) | 2010-05-21 | 2010-12-30 | Chassis articulated system for articulated vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020555410XU CN201827285U (en) | 2010-10-11 | 2010-10-11 | Constant-pressure damping control buffer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827285U true CN201827285U (en) | 2011-05-11 |
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ID=43965824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020555410XU Expired - Lifetime CN201827285U (en) | 2010-05-21 | 2010-10-11 | Constant-pressure damping control buffer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444687A (en) * | 2010-10-11 | 2012-05-09 | 伊卡路斯(苏州)车辆系统有限公司 | Constant pressure damping control and buffering system |
| CN110307192A (en) * | 2019-07-31 | 2019-10-08 | 娄底市中兴液压件有限公司 | Pressurize oil cylinder |
-
2010
- 2010-10-11 CN CN201020555410XU patent/CN201827285U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444687A (en) * | 2010-10-11 | 2012-05-09 | 伊卡路斯(苏州)车辆系统有限公司 | Constant pressure damping control and buffering system |
| CN110307192A (en) * | 2019-07-31 | 2019-10-08 | 娄底市中兴液压件有限公司 | Pressurize oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215211 Wujiang City, Jiangsu province FENHU Economic Development Zone, the community Fen Road No. 666 Patentee after: Jointech (Suzhou) Vehicle System Co., Ltd. Address before: 215211 Wujiang City, Jiangsu province FENHU Economic Development Zone, the community Fen Road No. 666 Patentee before: Jointech Vehicle System (Suzhou) Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20130925 |
|
| RGAV | Abandon patent right to avoid regrant |