CN201086607Y - Hydraulic control body in articulated system of large articulated passenger car - Google Patents
Hydraulic control body in articulated system of large articulated passenger car Download PDFInfo
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- CN201086607Y CN201086607Y CNU2007201728717U CN200720172871U CN201086607Y CN 201086607 Y CN201086607 Y CN 201086607Y CN U2007201728717 U CNU2007201728717 U CN U2007201728717U CN 200720172871 U CN200720172871 U CN 200720172871U CN 201086607 Y CN201086607 Y CN 201086607Y
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Abstract
The utility model discloses a hydraulic control body in the articulating system of a major articulated passenger vehicle, which consists of a main body, an upper swing rod, a core shaft, two one-way valves, two one-way overflowing valves and an electromagnetic valve. The utility model is characterized in that the core shaft is mounted in the main body via the upper swing rod onto the beam in the chassis articulating system; the core shaft and the upper swing rod rotate along with the change of the angle formed between the front and back carriages of the major articulated passenger vehicle; a plurality of oil slots are opened in the main body and on the core shaft; the oil slots are divided into two groups, with each group of oil slots connected with a left and a right hydraulic cylinder by the one-way valves, the electromagnetic valve and the one-way overflowing valves. When the major articulated passenger vehicle turns, the beam in the articulating system of the articulated passenger vehicle drives the upper swing rod and the core shaft to rotate, and the rotation of the core shaft, changes the speed and amount of hydraulic oil that flows in and out of the left and the right hydraulic cylinders, thus providing the vehicle with damping force that changes along with the angle formed by the front and back carriages.
Description
Technical field
The utility model relates to a kind of hydraulic control body that is installed in the chassis articulated system of large-sized articulated coach, refers to a kind of 14～18 meters long hydraulic control bodies in the rear-mounted engine chassis articulated system of large-sized articulated coach that are installed in especially.
Background technology
Before 2005, the above large-sized articulated coach of secondary that travels in Chinese big and medium-sized cities or secondary (being commonly called as big logical cover) all is the F/F articulated bus basically, engine installation is at the passenger vehicle front end, drive the back vehicle frame by front vehicle frame and travel, be connected by ball end between front vehicle frame and the back vehicle frame.The shortcoming of this F/F articulated bus is: the interior space degree of utilization is low, and noise is big in the car, and traveling comfort is poor, and car load axle weight unreasonable distribution easily produces the whipping phenomenon in the fast running, be not suitable for as the fast public traffic system car.
Along with the development of auto manufacturing, the rear-mounted engine articulated bus has interior space degree of utilization height because of it, and noise is little in the car, traveling comfort is good, the car load axle weight distributes rationally, is fit to as fast public traffic system with advantages such as cars, and beginning replaces the F/F articulated bus gradually.
Because the rear-mounted engine articulated bus adopts third axle to drive, back car promotes front truck and travels.When the forward and backward car horizontal direction of articulated bus produced angle (as turning to), back car can produce the side force perpendicular to working direction to front truck second bridge, and the propulsive effort of this power and forward and backward car angle and third axle is directly proportional.Increase along with forward and backward car angle and third axle propulsive effort, side force increases, the second bridge wheel and ground will be produced breaks away, forward and backward car is sheared, passenger vehicle is out of control, therefore a kind of chassis articulated system need be installed between the forward and backward car of rear-mounted engine articulated bus, this chassis articulated system not only has the forward and backward car pivotally attached of the articulated bus of realization function, and, the dumping force of corresponding increase also should be able to be provided along with the increase of front and back car corner, stop the second bridge tire to produce and break away, prevent that forward and backward car from phenomenon taking place to shear.
There are three families in the external producer that produces rear-mounted engine articulated bus chassis articulated system: be respectively Hubner company, German Hemscheidt company and the Hungary IKARUS company of Germany, wherein Hungary IKARUS company is purchased by German company.The chassis articulated system that is applied in the rear-mounted engine articulated bus that above-mentioned German two companies produce all adopts high integrated structure design thinking, and the articulated system of its production is high integrated integral structure, can not be split.Its advantage is: installation is simple, convenient, has reduced the structure occupation space effectively.But its shortcoming is: manufacture difficulty is big, manufacturing cost is high, maintenance cost is high.
At present, it is very high to produce the needed die cost of steel part product that this kind integrated level is higher, body volume is bigger, and, because the technical merit of China's steel industry is compared with external advanced person's steel industry and is also had a certain distance, so this has improved the difficulty and the cost of China's this series products of production and processing virtually.At present, all more than 200,000, and high, this city traffic improvement project to China has caused very big pressure to the integrated articulated system of this height in the price on the China market.
In addition, though the articulated system installation process of this high integration is more convenient quick, but replacing has got up just to occur very big trouble after system's certain part appearance in use damages or consumes for a long time in year, because integrated level is too high, remove very trouble, even and much the wherein some very little damage of components of assembly parts are also wanted integral replacing, the one, cause very big waste, cause maintenance cost high besides.
In addition, these articulated systems all belong to foreign technology, and this at home technology is blank fully.Along with the development of China's bus industry, this demand that is applied to the chassis articulated system in the large-sized articulated coach is further improved, this just certainly will cause a kind of technical monopoly to China.
For China such one populous, the country that resource is in short supply relatively, to develop a chassis articulated system that can satisfy the hinged requirement of rear-mounted engine articulated bus, can reduce manufacturing cost and maintenance cost effectively again be development China bus industry, be fit to the problem China's national situation needs, that press for solution.
In order to address the above problem, the applicant concentrates on studies and has developed suitable chassis articulated system China's national situation, that be applicable to 14～25 meters long secondarys or the above rear-mounted engine large-sized articulated coach of secondary of a cover.This chassis articulated system comprises splitting type truss structure, hydraulic control system and electric control unit three parts, it provides dumping force with the corresponding increase of increase of forward and backward car corner by hydraulic control system for large-sized articulated coach, the second bridge tire produces and breaks away when turning with the prevention large-sized articulated coach, prevents forward and backward car shearing.
Summary of the invention
The purpose of this utility model provides a kind of hydraulic control body that is installed in the rear-mounted engine chassis articulated system of large-sized articulated coach.This hydraulic control body adopt machinery mode the angle between the car of front and back is delivered in the hydraulic control body body, and provide the damping of corresponding increase with the increase of angle between the car of front and back with the mechanical mode controlled hydraulic system.
For achieving the above object, the utility model by the following technical solutions: the hydraulic control body in a kind of articulated system of large-sized articulated coach, it is made of body, upper pendulum bar, mandrel, two check valves, two unidirectional by pass valves, electromagnetic valve and flow regulating valve;
On body, have the interface that links to each other with controlled left hydraulic cylinder, with controlled right hydraulic actuating cylinder interface that links to each other and the interface that links to each other with petrol storage tank; Described two check valves, two unidirectional by pass valves, electromagnetic valve and flow regulating valve are installed on the body;
Mandrel is installed in the body; One end of upper pendulum bar is fixed on the top of mandrel, and the other end is fixed on the crossbeam in the chassis articulated system of large-sized articulated coach splitting type truss structure; Mandrel, upper pendulum bar rotate along with the variation of the forward and backward car angle of large-sized articulated coach;
Have several oil grooves in described body He on the mandrel, these oil grooves are divided into two groups, and every group of oil groove links to each other with controlled left hydraulic cylinder, right hydraulic actuating cylinder through check valve, electromagnetic valve, unidirectional by pass valve respectively.
The utility model has two groups of oil grooves on described mandrel, these two groups of oil grooves communicate with controlled left hydraulic cylinder and right hydraulic actuating cylinder respectively; Every group of oil groove comprises two oil grooves at least, and one is oil feed groove, and one goes out oil groove for fan-shaped, and these two oil grooves communicate with each other;
In a side of described fan-shaped oil groove, body, have some oil grooves, a spraying nipple is installed in every oil groove, every oil groove that spraying nipple is installed crosses and forms a total oil groove, and this total oil groove communicates with controlled left hydraulic cylinder or right hydraulic actuating cylinder through described check valve, electromagnetic valve, unidirectional by pass valve again.
When large-sized articulated coach turnon left or right-hand corner, crossbeam in the articulated bus articulated system can drive the upper pendulum bar that is attached thereto and rotate, upper pendulum bar can drive mandrel and rotate, in mandrel left-handed turning or right-handed process, increase along with angle, mandrel can be closed 1 spraying nipple or 2 spraying nipples or n spraying nipple successively, the oil mass that flows through in total oil groove is changed, thereby, make inflow and flow out a controlled left side, the speed and the oil mass of the hydraulic oil in the right hydraulic actuating cylinder change, hydraulic fluid pressure increases in the system, and then make a left side, right hydraulic actuating cylinder provides with preceding for car load, back car variable angle and the dumping force that changes, the second bridge tire produces and breaks away when stoping large-sized articulated coach to be turned, before preventing, back car is sheared.
Description of drawings
Fig. 1 is the chassis articulated system of large-sized articulated coach structural representation;
Constitution diagram when Fig. 2 is the large-sized articulated coach turning;
Fig. 3 is the utility model hydraulic control body side-looking structural representation;
Fig. 4 is the utility model hydraulic control body plan structure scheme drawing;
Fig. 5 is the inner part sectional view of the utility model hydraulic control body;
Fig. 6 is the A-A cutaway view of Fig. 5;
Fig. 7 is the B-B cutaway view of Fig. 5;
Fig. 8 is the utility model hydraulic control body internal oil passages scheme circuit and fundamental diagram.
The specific embodiment
Fig. 1 is the chassis articulated system structural representation that is applicable to 14～18 meters long secondarys or the above rear-mounted engine large-sized articulated coach of secondary that the applicant concentrates on studies and develops.This chassis articulated system comprises splitting type truss structure, hydraulic control system and electric control unit; Wherein, truss 1, crossbeam 2, turntable bearing 3, back truss 4 before splitting type truss structure comprises.
Preceding truss 1 is positioned at the rear end in large-sized articulated coach front truck compartment, on the truss 1, is being with front compartment to move by preceding truss 1 before the front compartment of large-sized articulated coach is welded on.The rear end of preceding truss 1 links to each other with crossbeam 2 by ball pivot 5; Crossbeam 2 is by being bolted to the outer ring of turntable bearing 3.Back truss 4 is positioned at the front end in car compartment behind the large-sized articulated coach, and the trunk of large-sized articulated coach is welded on the truss 4 of back, is being with trunk to move by back truss 4.The front end of back truss 4 is by being bolted to the inner ring of turntable bearing 3.
Pivotallys attached are realized by truss 1, crossbeam 2, turntable bearing 3 and back truss 4 before above-mentioned in the forward and backward compartment of large-sized articulated coach, and the rotation of the turntable bearing 3 by connecting forward and backward truss and crossbeam 2 forward and backward compartment horizontal direction when realizing Vehicular turn.
Because the rear-mounted engine articulated bus adopts third axle to drive, back car promotes front truck and travels.As shown in Figure 2, when the forward and backward car horizontal direction of passenger vehicle produces angle (as turning to), back car can produce the side force perpendicular to working direction to front truck second bridge, the second bridge wheel and ground are produced breaks away, forward and backward car is sheared, passenger vehicle is out of control, shown in, in articulated system of large-sized articulated coach, also to comprise a hydraulic control system, this hydraulic control system can provide the dumping force of corresponding increase along with the increase of forward and backward car corner, the second bridge tire produces and breaks away when stoping large-sized articulated coach to be turned, and prevents forward and backward car shearing.
As shown in Figure 1, this hydraulic control system comprises hydraulic control body 6, is installed in left and right hydraulic actuating cylinder 7,8 and petrol storage tank 9 on the truss 4 and arranged on left and right sides arms of back.Hydraulic control body 6 links to each other with left hydraulic cylinder 7, right hydraulic actuating cylinder 8 and petrol storage tank 9 by hydraulic oil pipe 10, the variation of forward and backward car angle when hydraulic control body 6 is turned according to large-sized articulated coach, change the speed and the oil mass that flow into, flow out the hydraulic oil in left hydraulic cylinder 7, the right hydraulic actuating cylinder 8, make left and right hydraulic actuating cylinder 7,8 for articulated bus safety, stable operation provide enough dampings, prevent forward and backward car shearing.
As shown in Figure 3, Figure 4, the disclosed hydraulic control body of the utility model is made of body 11, upper pendulum bar 12, mandrel 13, two check valves 14,15, two unidirectional by pass valve 16-1,16-2, an electromagnetic valve 17 and a flow regulating valve 18.
Mandrel 13 is installed in the body 11, and an end of upper pendulum bar 12 is fixed on the top of mandrel 13.The other end of upper pendulum bar 12 is fixed on the crossbeam 2 in the chassis articulated system of large-sized articulated coach splitting type truss structure shown in Figure 1.As shown in Figure 2, when large-sized articulated coach was turned, the crossbeam 2 in the chassis articulated system of large-sized articulated coach splitting type truss structure just had been with upper pendulum bar 12 to rotate, thereby, rotate with the intrinsic mandrel 13 of hydraulic control body that is installed in that links to each other with upper pendulum bar 12.When large-sized articulated coach was turned, along with the variation of angle between the forward and backward car, the angle that upper pendulum bar 12 and mandrel 13 rotate also changed thereupon.
On body 11, have the interface 19, interface 20 that links to each other with controlled right hydraulic actuating cylinder and the interface 21 that links to each other with petrol storage tank that link to each other with controlled left hydraulic cylinder.Two check valves 14,15, two unidirectional by pass valve 16-1,16-2, an electromagnetic valve 17 and a flow regulating valve 18 also are installed on body 11.
In body 11, on the mandrel 13, have some oil grooves.As shown in Figure 5, the utility model has four oil grooves 22,23,24,25 on mandrel 13.Wherein, oil groove 22,23 is one group, communicates with each other, and they link to each other with controlled left hydraulic cylinder by oil groove, the interface 19 on the body 11, the hydraulic oil pipe in the body 11. Oil groove 24,25 is one group, communicates with each other, and they link to each other with controlled right hydraulic actuating cylinder by oil groove, the interface 20 on the body 11, the hydraulic oil pipe in the body 11.
Fig. 6 is the cutaway view of expression the utility model hydraulic control body inner oil sump structure.As shown in the figure, have an oil groove 22 and a fan-shaped oil groove 23 on mandrel 13, oil groove 22 and 23 communicates with each other.In a side of fan-shaped oil groove 23, body 11, have three oil grooves, a spraying nipple 26,27,28 is installed in every oil groove, these three oil grooves cross and form a total oil groove 29. Oil groove 22,23,29 communicates with left hydraulic cylinder.When large-sized articulated coach turnon left or right-hand corner, crossbeam 2 in the articulated bus articulated system can drive the upper pendulum bar 12 that is attached thereto and rotate, upper pendulum bar 12 can drive mandrel 13 and rotate, in mandrel 13 left-handed turnings or right-handed process, increase along with angle, mandrel 13 can be closed 1 spraying nipple or 2 spraying nipples or 3 spraying nipples successively, the oil mass that flows through in total oil groove 29 is changed, thereby, the speed and the oil mass that flow into and flow out the hydraulic oil in the controlled left hydraulic cylinder are changed, hydraulic fluid pressure increases in the system, and then left hydraulic cylinder is provided with preceding for car load, back car angle increases and the damping of increase.
In like manner, as shown in Figure 7, also have an oil groove 24 and a fan-shaped oil groove 25 on mandrel 13, oil groove 24 and 25 communicates with each other.In a side of fan-shaped oil groove 25, body 11, have three oil grooves, a spraying nipple 30,31,32 is installed in every oil groove, these three oil grooves cross and form a total oil groove 33. Oil groove 24,25,33 communicates with right hydraulic actuating cylinder.When large-sized articulated coach is turned, crossbeam 2 in the articulated bus articulated system can drive the upper pendulum bar 12 that is attached thereto and rotate, upper pendulum bar 12 drives mandrel 13 and rotates, in mandrel 13 rotating process, increase along with angle, mandrel 13 is closed 1 spraying nipple or 2 spraying nipples or 3 spraying nipples successively, the oil mass that flows through in total oil groove 33 is changed, thereby, the speed and the oil mass that flow into and flow out the hydraulic oil in the controlled right hydraulic actuating cylinder are changed, hydraulic fluid pressure increases in the system, and then right hydraulic actuating cylinder is provided with preceding for car load, back car angle increases and the damping of increase.
In specific embodiment of the utility model, on mandrel 13, have four oil grooves, one group links to each other with controlled left hydraulic cylinder, right hydraulic actuating cylinder respectively in twos.Certainly, also can on mandrel 13, have some oil grooves, they are divided into two groups, link to each other with left and right hydraulic actuating cylinder respectively.
In specific embodiment of the utility model, on the body of hydraulic control body, be provided with two groups of spraying nipples, every group comprises 3 spraying nipples, is respectively applied for to change the flow velocity that flows into, flows out the hydraulic oil of left and right hydraulic actuating cylinder.Certainly, also can increase or reduce the quantity of every group of spraying nipple as required, only comprise 3 spraying nipples and need not be confined to every group.
Fig. 8 is the utility model hydraulic control body internal oil passages scheme circuit and fundamental diagram.As shown in the figure, controlled left hydraulic cylinder 7 links to each other with interface 19 on the hydraulic control body body by hydraulic oil pipe 10, communicate with oil groove 22 on the mandrel 13 by the oil groove in the body 11 then, again by linking to each other with the oil inlet of electromagnetic valve 18 with the oil groove 23,29 that oil groove 22 the communicates check valve 14 of connecting.
Controlled right hydraulic actuating cylinder 8 links to each other with interface 20 on the hydraulic control body body by hydraulic oil pipe 10, communicate with oil groove 24 on the mandrel 13 by the oil groove in the body 11 then, again by linking to each other with the oil inlet of electromagnetic valve 17 with the oil groove 25,33 that oil groove 24 the communicates check valve 15 of connecting.
The oil outlet of electromagnetic valve 17 directly or through flow regulating valve 18 links to each other with left and right hydraulic actuating cylinder 7,8 through unidirectional by pass valve 16-1,16-2 respectively.
As shown in the figure, two oil pockets of two hydraulic actuating cylinders 7,8 intersect and join, and the oil circuit between two hydraulic actuating cylinders communicates by hydraulic control body.This hydraulic control body and large-sized articulated coach are turned synchronously, by responding to the flow velocity of different angle of turn modulated pressure oil, make left and right hydraulic actuating cylinder provide damping for large-sized articulated coach, and articulated bus is worked safely and steadly.
The principle of work of the utility model hydraulic control body is as follows:
Referring to Fig. 8, when the large-sized articulated coach turnon left, along with the increase of the forward and backward car angle of articulated bus, the hydraulic arm of left hydraulic cylinder 7 shortens, the hydraulic arm elongation of right hydraulic actuating cylinder 8, oil mass in the left hydraulic cylinder 7 piston bottom cylinder bodies and the oil mass in the right hydraulic actuating cylinder 8 piston top cylinder bodies tail off.The right circuit among Fig. 8 becomes the live conductor road, at this moment, because the hydraulic arm of left hydraulic cylinder 7 is compressed, the hydraulic arm of right hydraulic actuating cylinder 8 is elongated, and hydraulic oil in the left hydraulic cylinder 7 piston bottom cylinder bodies and the hydraulic oil in the right hydraulic actuating cylinder 8 piston top cylinder bodies are through hydraulic oil pipe 10, oil groove in the body 11, oil groove 24 on the mandrel 13,25, spraying nipple 30 and/or spraying nipple 31 and/or spraying nipple 32, oil groove 33, check valve 15, electromagnetic valve 18, intrinsic oil groove, unidirectional by pass valve 16-1, oil groove on the body, in the cylinder body on hydraulic oil pipe 10 inflow left hydraulic cylinders 7 piston tops and in the cylinder body of right hydraulic actuating cylinder 8 piston bottoms.Before large-sized articulated coach, back car angle diminish (being that articulated bus is got back to the straight-line travelling position), the hydraulic arm elongation of left hydraulic cylinder 7, the hydraulic arm of right hydraulic actuating cylinder 8 shortens, left side circuit among Fig. 8 becomes the live conductor road, and hydraulic oil in the left hydraulic cylinder 7 piston top cylinder bodies and the hydraulic oil in the right hydraulic actuating cylinder 8 piston bottom cylinder bodies are through hydraulic oil pipe 10, oil groove in the body 11, oil groove 22 on the mandrel 13,23, spraying nipple 26 and/or spraying nipple 27 and/or spraying nipple 28, oil groove 29, check valve 14, electromagnetic valve 18, intrinsic oil groove, unidirectional by pass valve 16-2, oil groove on the body, in the cylinder body of hydraulic oil pipe 10 inflow left hydraulic cylinders 7 piston bottoms and in the cylinder body on right hydraulic actuating cylinder 8 piston tops.
Because the utility model hydraulic control body inner structure is symmetrical, so when the large-sized articulated coach right-hand corner, the operation sheet of hydraulic control system is opposite during with above-mentioned turnon left.
Need to prove that the flow velocity of the hydraulic oil of the hydraulic control body of flowing through, left and right hydraulic actuating cylinder is determined by the quantity of spraying nipple 26-28,30-32 that hydraulic control body inner spindle 13 is communicated with; The angle decision that the spraying nipple quantity that mandrel 13 is communicated with is rotated by mandrel 13 again; The angle that mandrel 13 rotates is controlled by upper pendulum bar 12 again; Because upper pendulum bar 12 links to each other with truss structure in the articulated system, so the mandrel 13 in the hydraulic control body according to before the articulated bus, the angle of car, the spraying nipple that is communicated with varying number, change the flow velocity and the flow of the hydraulic oil of the left and right hydraulic actuating cylinder of flowing through, make left and right hydraulic actuating cylinder that the dumping force that changes along with forward and backward car corner is provided for large-sized articulated coach, the sideslip that the second bridge tire produces when stoping large-sized articulated coach to be turned prevents forward and backward car shearing.For vehicle provides the control of good steering stability and steering angle, guarantee normal vehicle operation.
Flow regulating valve 18 in the utility model hydraulic control body is installed on the electromagnetic valve 17, and its unlatching and shutoff are controlled by the electric unit in the hydraulic control system.
The utility model has the advantages that:
1, simple in structure, maintain simple and conveniently, only need carry out oil starvation supply management and get final product, maintenance cost is low.
2, adopt entirely mechanical hydraulic control mode, therefore have very high reliability of service and service life.Even electric-control system break down or entirely ineffective situation under, still can guarantee the safety traffic of vehicle.
3, practicality and comformability are strong.
Hydraulic efficiency pressure system is used high-quality hydraulic oil, can be under-35 ℃～50 ℃ temperature normal operation, so the fluid control physical efficiency satisfies the needs of distinguishing different weathers all over China, have very strong comformability
4, can guarantee articulated bus safety, smooth operation, guarantee that phenomenons such as whipping, sideslip do not appear in articulated bus.
5, for articulated bus provides the hydraulic shock-absorption function, and good damping effect, make the articulated bus operation shockproof, noiselessness.
The above only is specific embodiment of the utility model and the know-why used, and is any based on the equivalent transformation on the technical solutions of the utility model basis, all belongs within the utility model protection domain.
Claims (2)
1. the hydraulic control body in the articulated system of large-sized articulated coach, it is characterized in that: it is made of body (11), upper pendulum bar (12), mandrel (13), two check valves (14,15), two unidirectional by pass valves (16-1,16-2), an electromagnetic valve (17) and a flow regulating valve (18);
On body (11), have the interface (19) that links to each other with controlled left hydraulic cylinder, with controlled right hydraulic actuating cylinder interface (20) that links to each other and the interface that links to each other with petrol storage tank (21); Described two check valves (14,15), two unidirectional by pass valves (16-1,16-2), an electromagnetic valve (17), a flow regulating valve (18) are installed on the body (11);
Mandrel (13) is installed in the body (11); One end of upper pendulum bar (12) is fixed on the top of mandrel (13), and the other end is fixed on the crossbeam (2) in the chassis articulated system of large-sized articulated coach splitting type truss structure; Mandrel (13), upper pendulum bar (12) rotate along with the variation of the forward and backward car angle of large-sized articulated coach;
Have several oil grooves in described body (11) and on the mandrel (13), these oil grooves are divided into two groups, and every group of oil groove links to each other with controlled left hydraulic cylinder, right hydraulic actuating cylinder through check valve, electromagnetic valve, unidirectional by pass valve respectively.
2. hydraulic control body according to claim 1 is characterized in that: have two groups of oil grooves on described mandrel, these two groups of oil grooves communicate with controlled left hydraulic cylinder and right hydraulic actuating cylinder respectively; Every group of oil groove comprises two oil grooves at least, and one is oil feed groove, and one goes out oil groove for fan-shaped, and these two oil grooves communicate with each other;
In a side of described fan-shaped oil groove, body, have some oil grooves, a spraying nipple is installed in every oil groove, every oil groove that spraying nipple is installed crosses and forms a total oil groove, and this total oil groove communicates with controlled left hydraulic cylinder or right hydraulic actuating cylinder through described check valve, electromagnetic valve, unidirectional by pass valve again.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201728717U CN201086607Y (en) | 2007-08-30 | 2007-08-30 | Hydraulic control body in articulated system of large articulated passenger car |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201728717U CN201086607Y (en) | 2007-08-30 | 2007-08-30 | Hydraulic control body in articulated system of large articulated passenger car |
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| CN201086607Y true CN201086607Y (en) | 2008-07-16 |
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| CNU2007201728717U Expired - Fee Related CN201086607Y (en) | 2007-08-30 | 2007-08-30 | Hydraulic control body in articulated system of large articulated passenger car |
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Cited By (6)
| 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 |
| CN102444686A (en) * | 2010-10-11 | 2012-05-09 | 伊卡路斯(苏州)车辆系统有限公司 | Variable damping control and buffering system |
| WO2014176833A1 (en) * | 2013-04-28 | 2014-11-06 | 伊卡路斯(苏州)车辆系统有限公司 | Rotary damper type hydraulic buffer system |
| CN104806587A (en) * | 2015-02-15 | 2015-07-29 | 江苏师范大学 | Passenger car articulated system testing device and control method thereof |
| CN108547815A (en) * | 2018-05-25 | 2018-09-18 | 龙工（上海）精工液压有限公司 | Multifunctional rotating motor overflow valve |
| CN111731053A (en) * | 2019-03-25 | 2020-10-02 | 株洲中车时代电气股份有限公司 | Intelligent damping hinge device |
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2007
- 2007-08-30 CN CNU2007201728717U patent/CN201086607Y/en not_active Expired - Fee Related
Cited By (7)
| 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 |
| CN102444686A (en) * | 2010-10-11 | 2012-05-09 | 伊卡路斯(苏州)车辆系统有限公司 | Variable damping control and buffering system |
| CN102444686B (en) * | 2010-10-11 | 2013-10-09 | 伊卡路斯(苏州)车辆系统有限公司 | Variable damping control and buffering system |
| WO2014176833A1 (en) * | 2013-04-28 | 2014-11-06 | 伊卡路斯(苏州)车辆系统有限公司 | Rotary damper type hydraulic buffer system |
| CN104806587A (en) * | 2015-02-15 | 2015-07-29 | 江苏师范大学 | Passenger car articulated system testing device and control method thereof |
| CN108547815A (en) * | 2018-05-25 | 2018-09-18 | 龙工（上海）精工液压有限公司 | Multifunctional rotating motor overflow valve |
| CN111731053A (en) * | 2019-03-25 | 2020-10-02 | 株洲中车时代电气股份有限公司 | Intelligent damping hinge device |
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Effective date of registration: 20160229 Address after: 215211, No. 666, Fen Yue Road, Fen Lake Economic Development Zone, Suzhou, Jiangsu, Wujiang Patentee after: Jointech (Suzhou) Vehicle System Co., Ltd. Address before: 214414, 180 Old Tin Road, Gushan Town, Gushan Town, Jiangsu, Jiangyin Patentee before: Wuxi Huachuang Yikalusi Vehicle Co., Ltd. |
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