CN100436211C - Brake system with integrated car load compensating arrangement - Google Patents
Brake system with integrated car load compensating arrangement Download PDFInfo
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- CN100436211C CN100436211C CNB200580018720XA CN200580018720A CN100436211C CN 100436211 C CN100436211 C CN 100436211C CN B200580018720X A CNB200580018720X A CN B200580018720XA CN 200580018720 A CN200580018720 A CN 200580018720A CN 100436211 C CN100436211 C CN 100436211C
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Abstract
A railway car brake system comprising a control device (100, 200) engageable with a predetermined portion (3) of such railway car for compensating braking force in response to a load carried by such railway car. The control device includes a sensor mechanism (110, 210) engageable with a truck bolster (16) or a movable car structure (3) for sensing a vertical position thereof corresponding to a load carried by the railway car. There is a control valve (120, 220) engageable with the sensor mechanism (110, 210) which generates a fluid pressure signal responsive to such load. A pneumatic actuator (140, 180) engageable with a predetermined brake beam (22, 24) disposed on such truck assembly (10) and fluidly connected to such control valve (120, 220). This pneumatic actuator (140, 180) generates a predetermined braking force responsive to the fluid pressure signal and further responsive to the load carried by the railway car as sensed by the sensor mechanism. Such predetermined braking force may be proportionally adjusted to variations in the load carried by the railway car.
Description
Technical field
The present invention relates generally to a kind of brake system that is used for passenger train, special, the present invention relates to a kind of passenger train brake system with integrated integrated car load compensating arrangement.
Background technology
The brake system that is used for passenger train twin shaft wheeled truck generally includes the brake shoe that is installed on a pair of brake beam two ends, and brake beam is between two axles.These brake beams are movably away from each other so that above-mentioned brake shoe is contacted with wheel tread.Usually, the brake system of these existing types comprises that cylinder and piston are so that drive brake shoe and wheel wipe contact.Cylinder and piston all can be installed on the passenger train of wheeled truck support, are called " passenger coach load ", also can be installed on the wheeled truck, are called " lorry is vehicle-mounted ".In both cases, one multiple rod system will with piston and brake beam couples together so that the drg normal operation.
As known in railway industry, a subject matter that all can occur in all passenger train brake system is that the load that is applied on the corresponding wheeled truck by vehicle can change according to passenger train and the different of lorry.Therefore, in an independent train marshalling list, some vehicles may be fully loadeds, and some are part carryings, and some are unloaded.The situation that may exist is that the end carrying situation of a vehicle is different with the other end, and this has just caused, and brake system has different requirements on each lorry to being installed in.
Therefore, if identical pressure is applied to the pneumatics on the wheel that is used for all vehicles, for example on the piston/cylinder, then the braking on part carrying and complete unloaded vehicle is renderd a service and will be far longer than the fully loaded vehicle.Obviously, just as desired, this situation is undesirable.
Summary of the invention
The invention provides a kind of brake system of rail vehicle, it has a control setup, and control setup contacts with a predetermined portions of rolling stock so that the load of carrying according to rolling stock compensates braking force.Control setup comprises a sensor mechanism, contacts with lorry bolster or mobile passenger vehicle structure, detects itself and the rolling stock institute corresponding upright position of bearing load.A control cock contacts with sensor mechanism, produces one and the cooresponding hydraulic pressure signal of this load.Air impeller contacts with a predetermined brake beam on the above-mentioned lorry assembly, and is connected with above-mentioned control cock.This air impeller produces the cooresponding pre-customized power of load that a corresponding rolling stock that is also also detected with sensor mechanism with hydraulic pressure signal carries.In first embodiment, hydraulic pressure signal is cooresponding greater than the rolling stock of zero load with load unloaded or carrying.Control cock is an orientation flow control valve, produces a combination with unloaded cooresponding first hydraulic pressure signal and this first hydraulic pressure signal and second hydraulic pressure signal, and second hydraulic pressure signal is cooresponding with the load greater than zero load.Therefore, air impeller has first actuating device and second actuating device, first actuating device receives first hydraulic pressure signal, produce one and the cooresponding braking force of unloaded rolling stock, second actuating device receives second hydraulic pressure signal simultaneously to first actuating device that receives first hydraulic pressure signal, and produces and greater than the cooresponding braking force of the load of zero load.In a second embodiment, control cock is one and measures flow-controlling gate, and produces the pressure fluid signal, the load proportion increase of signal and rolling stock carrying.Therefore, air impeller receives proportional adjusting fluid pressure, and produces cooresponding ratio control braking force.Pre-customized power like this can form ratio control according to the load change of rolling stock carrying.
Goal of the invention
Therefore, a basic purpose of the present invention provides a kind of brake system that is used for the wheeled truck of rolling stock, can the automatic compensation rolling stock carrying and act on different loads on the lorry.
Another object of the present invention provides a kind of brake system that is used for the wheeled truck of rolling stock, can guarantee to have balanced braking force under different vehicle load.
A further object of the invention provides the vehicle-mounted brake system of a kind of lorry simple, light-duty, that be used for wheeled car, it uses standard open freight car parts and brake beam, very high brake efficiency is provided, and comprises the wearing and tearing and the compensation car load of automatic degree of tightness adjustment brake shoe.
Though purposes more of the present invention and advantage describe in detail, but more detailed description below will make other purpose of brake cylinder of the present invention and advantage become clearer for the person of ordinary skill of the art, particularly when explanation be when combining with accompanying drawing and claim.
Brief description of drawings
Fig. 1 is the transparent view of the vehicle-borne brake assemblies of a kind of existing lorry;
Fig. 2 is a kind of transparent view of brake assemblies of existing passenger coach load;
Fig. 3 is the scheme drawing of brake system according to an embodiment of the invention, as to have integrated car load compensating arrangement;
Fig. 4 is the scheme drawing of brake system according to another embodiment of the invention, that have integrated car load compensating arrangement;
Fig. 5 is the scheme drawing of brake system according to still a further embodiment, that have integrated car load compensating arrangement.
The detailed description of preferred embodiment
Before the present invention will be described in detail, the function of introducing the vehicle-borne brake system of passenger coach load and lorry and they will help to understand the present invention.And, it should be noted that for the sake of clarity the same parts with identical function adopts identical Reference numeral in the different views of accompanying drawing.
Referring now to accompanying drawing 1, it has represented a lorry assembly 10 that is used for passenger train 2.Such lorry assembly 10 comprises a pair of sidecar frame 12, wheel shaft external member 14 and one at the truck bolster parts 16 shown in sidecar frame 12 each end and the part, and truck bolster parts 16 are connected on such lorry sidecar frame 12 movably.Usually, in the course of the work, sidecar frame 12 is maintained fixed with respect to wheel shaft external member 14, and bolster parts 16 are allowed to the load of carrying according to passenger train 2 and vertical shifting.When the load of such passenger train increased, bolster parts 16 moved down, up to reaching maximum load.Along with load reduces, bolster parts 16 move up, and when whole load when passenger train 2 is removed, bolster parts 16 return its initial upright position.
In lorry assembly 10, be provided with a vehicle-mounted brake system 20 of lorry.The vehicle-mounted brake assemblies 20 of the lorry of this specific type comprises brake beam 22 and 24 a, strut member 25 and brake heads 30 that are connected to each end of each brake beam 22 and 24 that are fixed on each brake beam 22 and 24 that a pair of and above-mentioned bolster parts 16 are parallel.Each brake head 30 has a brake shoe 32 thereon, and its location will can contact with the wheel 15 of cooresponding passenger train in the process of implementing braking.
The brake assemblies 20 of truck carrying also comprises an air impeller 34 that is connected on this brake beam 22 and 24, it has a pair of force transmission member 36 and 38, each force transmission member all is passed in the pair of openings (not shown) in the bolster parts, force transmission member 36 is known slack adjusters, and brake assemblies also comprises a pair of power transmission bar 40 and 42.Executing by air impeller 34 under the power-assisted braking situation, these force transmission members 36 and 38 and power transmit bar 40 and 42 with brake-force transmission with flow to brake beam 22 and 24, and and then pass to brake head 30 and superincumbent brake shoe 32 be installed.
With reference to the accompanying drawings 2, represented a passenger coach load brake assemblies 50 that is installed on the passenger train 2, every end of passenger train has a pair of lorry assembly 10.Brake assemblies 50 comprises an air impeller 52, slack adjuster 54 and two pairs of brake beams 22 and 24 that are installed in each end of passenger coach load brake assemblies 50.These brake beams 22 and 24 are driven by air impeller 52 by a series of rod member and attaching parts.
Brake rod is used for transmitting in brake system, increases or reduces braking force, can also transmit or change the direction of power.The rod member that two kinds of fundamental types are arranged.First kind is main body rod member (body lever), for example cylinder rod 56 and pivot point lever 58 (fulcrumed lever).Second kind is the lorry rod member, for example live lever 60 and fixed link 62.Lorry rod member attaching parts or bottom bar 64 pass lorry 11 and stretch.This bar 64 is used for power is passed to fixed link 62 from live lever 60.Push rod 66 with lorry rod member 60 and 62 and main body rod member 56 and 58 couple together, an intermediate bar 68 couples together two main body rod members 56 and 58.Like this, under the situation of braking, air impeller 52 applies a power, and these rod members are with brake-force transmission and flow to brake beam 22 and 24, and and then passes to brake head 30 and superincumbent brake shoe 32 is installed.
Offering among actuator 34 among Fig. 1 and Fig. 2 52 fluid pressure can be provided or be provided by energy reservoir 6 by brake hose 4.
In first embodiment of the present invention, as shown in Figure 3, device 100 load that detect on passenger train 2 are arranged, and produce one control signal that should load.Best, such device 100 is valve gears, but it comprises the device 110 that a straight line moves, this device along with predetermined portions 3 passenger train 2, vertically moving or movably bolster parts 16 detect a vertical piston and install 120, device 120 be directly connected on the sidecar frame 12 or be connected to one with sidecar frame 12 bonded assembly centre part (not shown) on, and with sensing device 110 contact or be connected and produce at least one to should predetermined portions 3 or the control signal of bolster parts 16.
Be understandable that under the situation that does not influence work of the present invention, the installation site of sensing device 110 and signal generation apparatus 120 can be conversely.
Best, an end of sensing device 110 has parts, for example is roller 112, is used in the process that above-mentioned predetermined vertical movable part 3 moves friction force being reduced to minimum.
Then with reference to accompanying drawing 3, signal generation apparatus 120 is orientation flow control valves, can work between first flox condition and second flox condition, and is pressed in first or second flox condition by a bias spring 122.Flow-controlling gate 120 has one and is connected to hydraulic power source, and for example brake pipe 4, on inlet 124 and a pair of outlet 126 and 128 that is used to produce hydraulic pressure signal.Under first flox condition, have only first outlet 126 can be by from 124 fluid pressures that enter into valve that enter the mouth, and second outlet 128 be by an air extractor duct 130 and extraneous UNICOM.Under second flox condition, fluid pressure flows out flow-controlling gate 120 by two outlets 126 and 128, and air extractor duct 130 is closed.
In the first embodiment of the present invention, brake system 20 or the brake system 50 among Fig. 2 among Fig. 1 have an actuator 140, it is a cylinder 140 that has shell 142, shell 142 has one first chamber 144 and one second chamber 146, dividing plate 147 sealings of installing by a rigidity between the two, dividing plate with two chambeies separately.A first piston 148 is arranged in 144, one second pistons 150 in first chamber and is arranged in second chamber 146, and they all are to be rigidly connected on the universal bar 152 so that along with its crank motion together.The power that one end of bar 152 is connected among Fig. 1 is transmitted on the bar 40 or on the main body rod member 56 among Fig. 2.In spring installation 154 with predetermined elasticity coefficient and bar 152, first piston 148, second piston 150 one or their combination link to each other, so that limit the braking force that is produced by each brake shoe 32, and the first piston 148 and second piston 150 are turned back to initial non-activation point.
At work, when passenger train 2 is zero load, flow-controlling gate 120 just is in the first flow condition, startup according to braking procedure, fluid pressure is exported 126 by first, so just produce the first dominant discharge pressure signal, receive by the inlet 156 of first pilot piping 158 in first chamber 144.Subsequently, produce fluid pressure on a surface of first piston 148.First and second pistons 148 and 150 motion make actuator 140 produce first a pre-customized power corresponding to the first fluid condition of flow-controlling gate 120 respectively, it can be passed to attaching parts in the brake system by bar 152, and then pass to each brake shoe 32, wherein the first pre-customized power will enough stop moving of unloaded passenger train 2.Best, the predetermined elasticity coefficient of spring installation 154 will select to stop the further motion of first and second pistons 148 and 150, prevent that respectively each brake shoe 32 from producing extra braking force, and in braking release order, first and second pistons 148 and 150 are returned its initial position respectively.
Along with the increase of passenger train 2 load, its structure will move down, thereby causing that sensing device 110 moves makes flow-controlling gate 120 switch to second flow condition.In the second such flow condition, fluid pressure is just by first outlet 126 and by first pilot piping 158, produce first a dominant discharge signal that receives at inlet 156 places in first chamber 144 of actuator 140, simultaneously, fluid pressure can produce second a control fluid pressure signal that receives at inlet 160 places in second chamber 146 of actuator 140 by second outlet 128.Subsequently, actuator 140 just produces fluid pressure respectively on a surface of each first and second piston 148 and 150.Be understandable that such actuator 140 can produce one second pre-customized power, with moving of the passenger train 2 of enough terminations carrying.Be understandable that the above-mentioned second pre-customized power can be greater than the first pre-customized power that produces when unloaded corresponding to passenger train 2.
In the second embodiment of the present invention, as shown in Figure 4, brake system 20 or the brake system 50 among Fig. 2 among Fig. 1 have an actuator 180, comprise first a gas spring actuator 182, be connected with first outlet 126 of flow-controlling gate 120 by first pilot piping 158 with an inlet 184.The first gas spring actuator 182 like this is to be arranged in one second gas spring actuator 188, the second actuators to have an inlet 190, is connected with second outlet 128 of flow-controlling gate 120 by second pilot piping 162.The first and second gas spring actuators 182 and an end of 188 are connected on the rigidity erecting device 194, and the other end is connected on the push rod 196.
At work, when passenger train 2 zero loads, flow-controlling gate 120 just is in the first fluid condition, just according to the startup of braking procedure, fluid pressure is also passed through first pilot piping 158 by first outlet 126, so just produce the first dominant discharge pressure signal, receive at inlet 184 places of the first gas spring actuator 182.This has just produced the first pre-customized power, enough stops moving of unloaded passenger train 2.
Moving downward of passenger train 2 structures will cause that sensing device 110 moves up, thereby makes flow-controlling gate 120 switch to second flow condition.In second flow condition, fluid pressure just enters first pilot piping 158 from first outlet 126, producing one first dominant discharge signal receives at inlet 184 places of the first gas spring actuator 182, simultaneously, fluid pressure can produce one second control fluid pressure signal by second outlet 128, thereby inlet 190 places at the second gas spring actuator 188 receive the second place cooresponding second pre-customized power that produces with flow-controlling gate 120, particularly, second braking force that produced by each brake shoe 32 of this actuator 180 enough stops moving of the passenger train 2 that carries.
Perhaps, such actuator 180 can be a brake cylinder that has dual-piston structure, as license to Daugherty Jr, introduced by the U.S. Patent No. 6296916 that the applicant had.U.S. Patent No. 6296916 here as a reference.
In the third embodiment of the present invention, as shown in Figure 5, there is a device 200 to detect the load that is applied on the passenger train 2, it comprises the sensing device 210 that a straight line moves, the predetermined portions 3 of vertical shifting comes together to detect the position of above-mentioned specific part 3 on this device and the passenger train 2, device 200 also comprises a device 220 that is connected on the rigid construction, and it contacts with above-mentioned detection device 210, produces the proportional control signal in position of at least one and above-mentioned predetermined portions 3.
In this embodiment, signal generation device 200 is one and measures control cock 200, comprises a shell 222, a bar 224, and bar can be at the crank motion of shell 222 internal linear, and an end is connected on the device 210.The other end of bar 224 has a stand apparatus 226, can contact with a hole 228.Inlet 230 is connected to hydraulic power source for example on the brake pipe 4, also has an outlet 232, is connected on the actuator 34 of brake system 20 of Fig. 1 or on the actuator 52 of the brake system 50 of Fig. 2.Also having a spring installation 234 to press support part 226 cooperates with hole 228.
The increase that acts on load on the passenger train 2 will shifting bar 224, and increased the passage that is positioned at the fluid pressure at inlet 230 places by hole 224, so just provide a predetermined fluid pressure at outlet 232 places, the load of this pressure and passenger train 2 is proportional.
Best, use measurement control cock 220 can utilize existing air impeller, on the control brake shoe, have cost advantage in the braking force like this.
Those having ordinary skill in the art will appreciate that, the vehicle-mounted brake assemblies 20 of lorry among each Fig. 1 can have device 100 among Fig. 3 or the device 200 among Fig. 5, so that independently control the braking force of each lorry assembly 11, under the load of the passenger train 2 one ends situation different, do just highly beneficial like this with passenger train 2 other end load.
Though what the present invention represented is the vertical shifting part of passenger coach load detecting device and passenger train or the bolster parts direct contact of lorry assembly, but for the person of ordinary skill of the art clearly, the present invention can be used for known other non-contact detection device, its can with signal generation apparatus form one or with signal generation apparatus away from and link together.For example, detecting device can be that known optics or super sonic non-contact sensor can detect at least one target and produce an electric signal, and this electric signal can be received by a control cock with Vidacare corp.
And signal generation apparatus can be used for producing an electric signal in the application of using electric device, and for example an electrically operated valve or an electrical motor start and produce braking force.
In addition, though what the present invention represented is all known TMX.RTM or the vehicle-mounted brake system of UBX.RTM type lorry (TMX.RTM and UBX.RTM are that Westinghouse Air Brake Company is the present patent application people's a registered trade mark (RTM)), the present invention can be used for the brake system of other type, for example, come to provide separately the disk braking system of braking force to each wheel according to the hydraulic pressure that is received.
Like this, that the present invention has carried out is abundant, clear, briefly and explanation accurately, so that those of ordinary skill in the art can make and use.Be understandable that, for change, the modification of specific embodiment parts of the present invention, be equal to and replace or substitute that bases that limited, the spirit and scope of the present invention are conspicuous not deviating from claim to those skilled in the art.
Claims (10)
1, a kind of load compensation brake system of rolling stock comprises:
(a) at least one in control setup and above-mentioned rolling stock or a pair of lorry assembly and their combination contact, detect the vertical shifting part at least one in a pair of lorry assembly, a vertical shifting part of this rolling stock and the upright position of their combination, above-mentioned upright position is by the load decision of rolling stock carrying, the upright position produces at least one control signal in braking procedure, above-mentioned at least one control signal is corresponding with the load of rolling stock carrying;
(b) actuating device, contact with a predetermined portions of above-mentioned brake system and a predetermined portions of above-mentioned control setup, above-mentioned actuating device is corresponding with above-mentioned at least one control signal, produces one and is applied on this each wheel at least one the lorry assembly in the lorry assembly with the cooresponding predetermined braking force of load of rolling stock carrying and with above-mentioned pre-customized power;
Wherein above-mentioned at least one control signal is a hydraulic pressure signal, and above-mentioned control setup is a directional control valve device, and it comprises:
(a) valve operating system, be used for crank motion, has one first end, partly contact with the vertical shifting of at least one in a pair of lorry assembly of vertical shifting rolling stock and this, above-mentioned valve operating system can detect the primary importance of above-mentioned rolling stock zero load and detect above-mentioned rolling stock load and move between greater than the second place of zero load;
(b) valve shell, be connected at least one the vertical fixing part in the above-mentioned a pair of lorry assembly, it has an inlet that is connected on the hydraulic power source, one first outlet and one second outlet, above-mentioned valve shell can be operated between the first fluid flox condition and second fluid flow conditions, first fluid flox condition is that above-mentioned hydraulic pressure flows to first outlet from above-mentioned inlet, second fluid flow conditions is that above-mentioned hydraulic pressure flows to first outlet and second outlet from above-mentioned inlet, above-mentioned valve shell receives second end of above-mentioned valve operating system, and it is next at one first hydraulic pressure signal of the above-mentioned first outlet generation by its operation, above-mentioned first hydraulic pressure signal is corresponding with the above-mentioned valve operating system that is in above-mentioned primary importance, and producing one at above-mentioned first hydraulic pressure signal of above-mentioned first outlet with in the combination of second hydraulic pressure signal of above-mentioned second outlet, combinations thereof is corresponding with the above-mentioned valve operating unit that is in said second position.
2, the load compensation brake system of rolling stock as claimed in claim 1, wherein above-mentioned first hydraulic pressure signal is identical with above-mentioned second hydraulic pressure signal.
3, the load compensation brake system of rolling stock as claimed in claim 1, wherein above-mentioned control cock device comprises a bias spring device, is used for above-mentioned valve body is offset in the above-mentioned first fluid flox condition.
4, the load compensation brake system of rolling stock as claimed in claim 1, wherein above-mentioned actuating device produces the first pre-customized power according to receiving above-mentioned first hydraulic pressure signal, according to the combination results second pre-customized power that receives above-mentioned first hydraulic pressure signal and second hydraulic pressure signal, the above-mentioned second pre-customized power is greater than the above-mentioned first pre-customized power.
5, the load compensation brake system of rolling stock as claimed in claim 4, wherein above-mentioned actuating device comprises:
(a) erecting device is connected to the rigid element of above-mentioned brake system;
(b) push rod can be connected at least one attaching parts of above-mentioned brake system;
(c) one first gas spring actuator, be arranged between above-mentioned erecting device and the above-mentioned push rod and also connect thereon, the above-mentioned first gas spring actuator has one first fluid connection device, be connected in first outlet of above-mentioned control cock device, receive above-mentioned first hydraulic pressure signal, wherein above-mentioned first fluid pressure expands the above-mentioned first gas spring actuator and produces the above-mentioned first pre-customized power, and this braking force is by above-mentioned push rod transmission;
(d) one second gas spring actuator, be arranged between above-mentioned erecting device and the above-mentioned push rod and also connect thereon, the above-mentioned second gas spring actuator has one second fluid connection device, be connected in second outlet of above-mentioned control cock device, receive above-mentioned second hydraulic pressure signal, the wherein above-mentioned second gas spring shaft drive axis is to holding the above-mentioned first gas spring actuator, the combination of wherein above-mentioned first hydraulic pressure signal and second hydraulic pressure signal makes simultaneously above-mentioned first gas spring actuator and the above-mentioned second gas spring actuator expand and produces the above-mentioned second pre-customized power that this braking force is by above-mentioned push rod transmission.
6, the load compensation brake system of rolling stock as claimed in claim 4, wherein above-mentioned actuating device is a cylinder, comprising:
(a) shell contacts with above-mentioned brake system of rail vehicle, and has first closed end and second an opposite closed end;
(b) dividing plate, rigidity also is installed in the above-mentioned shell hermetically, and is between above-mentioned first closed end and the above-mentioned second opposite closed end;
(c) cylinder rod can move back and forth in above-mentioned shell, and extends through the aforementioned barriers and second closed end, and an end of second closed end that extends through above-mentioned shell of said cylinder bar is connected at least one attaching parts of above-mentioned brake system;
(d) one first fluid chamber is formed between above-mentioned first closed end and the aforementioned barriers;
(e) one second fluid chamber is formed between aforementioned barriers and above-mentioned second closed end;
(f) first piston sealably is installed in first fluid chamber, and is connected on the said cylinder bar so that along with it moves together;
(g) one second piston sealably is installed in second fluid chamber, and is connected on the said cylinder bar so that along with it moves together;
(h) one first fluid connection device, receive above-mentioned first hydraulic pressure signal with the first outlet fluid connection of above-mentioned first fluid chamber and above-mentioned control cock device, and provide it to above-mentioned first hydraulic cavities, wherein above-mentioned first hydraulic pressure signal moves above-mentioned first piston and said cylinder bar, and producing the above-mentioned first pre-customized power, this braking force is transmitted by the said cylinder bar; And
(i) one second fluid connection device, receive above-mentioned second hydraulic pressure signal with the second outlet fluid connection of above-mentioned second fluid chamber and above-mentioned control cock device, and provide it to above-mentioned second hydraulic cavities, above-mentioned first piston, above-mentioned second piston and said cylinder bar are moved in the combination of wherein above-mentioned first hydraulic pressure signal and above-mentioned second hydraulic pressure signal simultaneously, and producing the above-mentioned second pre-customized power, this braking force is transmitted by the said cylinder bar.
7, the load compensation brake system of rolling stock as claimed in claim 6, wherein said cylinder also comprises a spring installation with predetermined elasticity coefficient, and can with said cylinder bar, above-mentioned first piston, above-mentioned second piston in one or their any combinations contact, control one and their combination in the above-mentioned first pre-customized power, the above-mentioned second pre-customized power, and be used for the above-mentioned first piston and second piston are returned initial non-activation point in the braking dispose procedure.
8, the load compensation brake system of rolling stock as claimed in claim 4, wherein above-mentioned actuating device is a cylinder, comprising:
(a) shell contacts with above-mentioned brake system of rail vehicle;
(b) piston component of a hollow moves back and forth in above-mentioned shell, and above-mentioned hollow piston assembly has hollow space, and hollow space is formed by a rear wall and at least one sidewall;
(c) a valve piston assembly is arranged in above-mentioned hollow space, and above-mentioned valve piston assembly comprises towards the first surface of rear wall and a form peripheral edge portions, is used for an inside face sealing contact with above-mentioned at least one sidewall;
(d) one first at interval, form by the above-mentioned first surface of the above-mentioned valve piston assembly of at least one partial sum of the above-mentioned inside face of the above-mentioned rear wall of above-mentioned hollow space, above-mentioned at least one sidewall;
(e) piston rod assembly, it has one first end and one second end, above-mentioned first end is connected to above-mentioned hollow piston assembly, above-mentioned second end contacts with at least one attaching parts of brake system, implement to start in the process of braking procedure of brake system in above-mentioned braking like this, above-mentioned piston rod assembly moves on outward direction;
(f) one first fluid connection device, the first outlet fluid connection with above-mentioned first interval and above-mentioned control cock device, so that in the process that the brake system of rail vehicle braking is implemented, in above-mentioned first interval, provide above-mentioned first hydraulic pressure signal, cause above-mentioned hollow piston assembly to leave above-mentioned valve piston assembly, and produce the first pre-customized power, and in brake system of rail vehicle braking dispose procedure, from above-mentioned first interval, discharge hydraulic pressure, so that above-mentioned hollow piston assembly moves towards above-mentioned valve piston assembly;
(g) one second fluid connection device, the second outlet fluid connection with above-mentioned second interval and above-mentioned control cock device, so that in the process that brake system is implemented to brake, give in above-mentioned second interval above-mentioned second hydraulic pressure signal be provided, cause above-mentioned hollow piston assembly to leave above-mentioned valve piston assembly, and produce the second pre-customized power, and in brake system braking dispose procedure, from above-mentioned second interval, discharge hydraulic pressure;
(h) apply in the process of above-mentioned fluid pressure at interval above-mentioned first, be used for the device that is communicated with atmosphere at interval above-mentioned second.
9, a kind of load compensation brake system of rolling stock comprises:
(a) at least one in control setup and above-mentioned rolling stock or a pair of lorry assembly and their combination contact, detect the vertical shifting part at least one in a pair of lorry assembly, a vertical shifting part of this rolling stock and the upright position of their combination, above-mentioned upright position is by the load decision of rolling stock carrying, the upright position produces at least one control signal in braking procedure, above-mentioned at least one control signal is corresponding with the load of rolling stock carrying;
(b) actuating device, contact with a predetermined portions of above-mentioned brake system and a predetermined portions of above-mentioned control setup, above-mentioned actuating device is corresponding with above-mentioned at least one control signal, produces one and is applied on this each wheel at least one the lorry assembly in the lorry assembly with the cooresponding predetermined braking force of load of rolling stock carrying and with above-mentioned pre-customized power;
Wherein above-mentioned at least one control signal is that hydraulic pressure signal and above-mentioned control setup are measurement control cock, and it has:
(a) shell is connected in a pair of lorry assembly on the vertical fixing part of at least one, and it has one and is connected to the inlet of hydraulic power source, an outlet and the internal partition device between above-mentioned entrance and exit;
(b) hole has preliminary dimension, and is arranged in above-mentioned internal partition device, wherein passes through above-mentioned hole from the above-mentioned flow of pressurized of the above-mentioned outlet that enters the mouth;
(c) valve actuating device, can be in above-mentioned shell crank motion, has one first end, partly contact with the vertical shifting of at least one in a pair of lorry assembly of vertical shifting rolling stock structure and this, above-mentioned valve actuating device can and the above-mentioned rolling stock corresponding first location of zero load and and the cooresponding second place of the above-mentioned rolling stock of fully loaded between move;
(d) stand apparatus, be connected on second end of valve actuating device, and contact with above-mentioned hole at least in part, so that change its preliminary dimension, moving the increase that causes above-mentioned stand apparatus by the increase between above-mentioned first and second positions of above-mentioned valve actuating device moves, and the increase of the preliminary dimension in above-mentioned hole changes, thereby cause measuring hydraulic pressure from above-mentioned hydraulic power source in above-mentioned entrance, and being created in the predetermined hydraulic pressure signal of above-mentioned outlet, this signal is directly proportional with the load that rolling stock carries.
10, the load compensation brake system of rolling stock as claimed in claim 9, wherein above-mentioned actuating device comprises a fluid connection device, be connected in the above-mentioned outlet so that in implementing braking procedure, receive above-mentioned predetermined hydraulic pressure signal, cause producing pre-customized power.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US57845004P | 2004-06-09 | 2004-06-09 | |
| US60/578,450 | 2004-06-09 | ||
| US11/145,738 | 2005-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1964877A CN1964877A (en) | 2007-05-16 |
| CN100436211C true CN100436211C (en) | 2008-11-26 |
Family
ID=38083458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200580018720XA Expired - Fee Related CN100436211C (en) | 2004-06-09 | 2005-06-08 | Brake system with integrated car load compensating arrangement |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100436211C (en) |
| UA (1) | UA90678C2 (en) |
| ZA (1) | ZA200609576B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU194702U1 (en) * | 2019-10-28 | 2019-12-19 | Акционерное общество "Научно-производственная корпорация Уралвагонзавод" имени Ф.Э. Дзержинского | Three-axle truck carriage |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9132557B2 (en) * | 2009-07-15 | 2015-09-15 | Keio University | Load-compensation device |
| CN117885700B (en) * | 2024-02-02 | 2024-06-25 | 金华瑞迪车业有限公司 | Intelligent parking system of scooter and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3178238A (en) * | 1963-08-26 | 1965-04-13 | Budd Co | Brake apparatus |
| US3608680A (en) * | 1970-02-13 | 1971-09-28 | Ellcon Nat | Load-responsive braking mechanism |
| US4613016A (en) * | 1985-08-09 | 1986-09-23 | American Standard Inc. | Single-cylinder truck-mounted brake assembly |
| US4793446A (en) * | 1986-12-10 | 1988-12-27 | American Standard Inc. | Single-cylinder, truck-mounted brake assembly |
| US5269594A (en) * | 1991-12-17 | 1993-12-14 | Ellcon National, Inc. | Load responsive air brake control valve for providing continuously variable brake pressure |
| US5551766A (en) * | 1994-10-11 | 1996-09-03 | Ellcon National, Inc. | Empty/load sensor mechanism for controlled vehicle braking |
| US5735580A (en) * | 1995-11-20 | 1998-04-07 | Technical Services And Marketing Inc. | Rail car load sensor |
| US6269916B1 (en) * | 1999-07-21 | 2001-08-07 | Westinghouse Air Brake Company | Brake cylinder using dual piston assemblies |
-
2005
- 2005-06-08 UA UAA200700221A patent/UA90678C2/en unknown
- 2005-06-08 CN CNB200580018720XA patent/CN100436211C/en not_active Expired - Fee Related
-
2006
- 2006-11-17 ZA ZA200609576A patent/ZA200609576B/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3178238A (en) * | 1963-08-26 | 1965-04-13 | Budd Co | Brake apparatus |
| US3608680A (en) * | 1970-02-13 | 1971-09-28 | Ellcon Nat | Load-responsive braking mechanism |
| US4613016A (en) * | 1985-08-09 | 1986-09-23 | American Standard Inc. | Single-cylinder truck-mounted brake assembly |
| US4793446A (en) * | 1986-12-10 | 1988-12-27 | American Standard Inc. | Single-cylinder, truck-mounted brake assembly |
| US5269594A (en) * | 1991-12-17 | 1993-12-14 | Ellcon National, Inc. | Load responsive air brake control valve for providing continuously variable brake pressure |
| US5551766A (en) * | 1994-10-11 | 1996-09-03 | Ellcon National, Inc. | Empty/load sensor mechanism for controlled vehicle braking |
| US5735580A (en) * | 1995-11-20 | 1998-04-07 | Technical Services And Marketing Inc. | Rail car load sensor |
| US6269916B1 (en) * | 1999-07-21 | 2001-08-07 | Westinghouse Air Brake Company | Brake cylinder using dual piston assemblies |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU194702U1 (en) * | 2019-10-28 | 2019-12-19 | Акционерное общество "Научно-производственная корпорация Уралвагонзавод" имени Ф.Э. Дзержинского | Three-axle truck carriage |
Also Published As
| Publication number | Publication date |
|---|---|
| UA90678C2 (en) | 2010-05-25 |
| CN1964877A (en) | 2007-05-16 |
| ZA200609576B (en) | 2008-08-27 |
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