CN202006807U - Empty and load two-stage automatic regulator for railway vehicles - Google Patents

Empty and load two-stage automatic regulator for railway vehicles Download PDF

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Publication number
CN202006807U
CN202006807U CN2011200025212U CN201120002521U CN202006807U CN 202006807 U CN202006807 U CN 202006807U CN 2011200025212 U CN2011200025212 U CN 2011200025212U CN 201120002521 U CN201120002521 U CN 201120002521U CN 202006807 U CN202006807 U CN 202006807U
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CN
China
Prior art keywords
valve
check weighing
empty
push rod
brake
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Expired - Lifetime
Application number
CN2011200025212U
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Chinese (zh)
Inventor
马驰
张月英
向志英
王高
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CSR Yangtze Co Ltd
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CSR Yangtze Co Ltd
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Priority to CN2011200025212U priority Critical patent/CN202006807U/en
Application granted granted Critical
Publication of CN202006807U publication Critical patent/CN202006807U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an empty and load two-stage automatic regulator for railway vehicles, which comprises a brake valve, a brake cylinder, a reference plate, a weight measuring valve and a pressure limiting valve, wherein the reference plate is arranged on a side frame of a steering frame, and the weight measuring valve is arranged on a vehicle body bottom frame or a steering frame swing bolster and is positioned above the reference plate. The empty or load state of the vehicles can be detected through judging whether a weight measuring rod contact and the reference plate are in contact or not. In the empty and load state, the relative positions of a weight measuring rod circular disc, a press rod and a push rod are changed. When the vehicles are in an empty state, a part of brake air supplied to the brake cylinder is divided for being supplied to a pressure reduction air cylinder, so the pressure of the empty vehicle brake cylinder is reduced. Through receiving the simultaneous effect of the brake air from the brake valve and the pressure air from the brake cylinder and the pressure reduction air cylinder, the pressure limiting valve controls the flow rate of the brake air from the brake valve for entering the brake cylinder, so the pressure of the brake cylinder is regulated when the railway vehicles are in different states of empty or load, and the empty and load two-stage automatic regulator is applicable to the special railway vehicle empty and load regulation for unmixed empty and load vehicles.

Description

Rolling stock empty and load two-stage automatic regulating apparatus
Technical field
The utility model relates to the rolling stock braking force control system, is meant a kind of rolling stock empty and load two-stage automatic regulating apparatus especially.
Background technology
Along with the progressively increase of rolling stock load-carrying and the progressively reduction of dead weight of vehicle, the vehicle bare weight is than increasing.At present, the empty wagons of China principal mode rolling stock C70 series and the weight ratio of loaded vehicle reach 1: 4, and the empty wagons of C80 series and the weight ratio of loaded vehicle reach 1: 5, and the empty wagons of following heavy haul railway vehicle and the weight ratio of loaded vehicle are expected to reach 1: 6.
For fear of along with the vehicle bare weight than increasing, braking ratio changes the excessive not enough problem that influences traffic safety of braking force when wheel sliding flat sliding or loaded vehicle when causing empty wagons, rolling stock is provided with empty and load brake equipment.Empty and load brake equipment can make vehicle obtain corresponding braking force under different load-carrying situations.Even when train speed is higher, the vehicle that is under the different load-carrying situations neither can be because of the too big flat wheel of braking force, can can not guarantee in the stopping distance of regulation, to stop because of braking force is not enough yet, its braking ratio is reached unanimity, the longitudinal impulse when reducing car brakeing between vehicle.
At present, China railways vehicle empty and load brake equipment generally is divided into empty and load two-stage manual adjusting device, empty and load two-stage automatic regulating apparatus and the stepless automatic regulating apparatus of empty and load.Empty and load two-stage manual adjusting device adopts manpower adjustment mode, easily takes place to leak to transfer or the misadjustment accident, so the rolling stock adjustment device of empty weight/heavy weight has obtained application, the particularly stepless automatic regulating apparatus of empty and load widely.Yet the structure more complicated of the stepless automatic regulating apparatus of empty and load, manufacturing cost are higher, be prone to fault in the use, the maintenance maintenance amount is big.In actual applications, particularly its cost performance is extremely low on some special purpose railway vehicles, uses very uneconomical.
Summary of the invention
The purpose of this utility model is exactly the rolling stock empty and load two-stage automatic regulating apparatus that a kind of simple in structure, with low cost, dependable performance will be provided, be easy to safeguard and be suitable for the special purpose railway vehicle.
For achieving the above object, the designed rolling stock empty and load two-stage automatic regulating apparatus of the utility model comprises brake activation valve, brake cylinder, is installed in datum plate on the truck side frame, is installed on car body underframe or the truck bolster and is positioned at the check weighing valve of datum plate top and is installed in limiting valve on the car body underframe.
Described check weighing valve comprises valve body and check weighing rod bearing thereof, is provided with push rod and push rod spring in the valve body epicoele, and the push rod axle center is provided with the deflation hole that leads to atmosphere; Be provided with push rod and push rod spring in the valve body cavity of resorption, the external part of push rod and the lower end of depression bar are hinged, the external part butt of the shaft of depression bar and push rod.The epicoele of valve body and cavity of resorption interconnecting part are provided with logical valve and the logical valve spring that ends of ending.Be provided with the check weighing bar in the check weighing rod bearing, the shaft of check weighing bar is provided with the check weighing bar disk that matches with depression bar, and check weighing bar disk top is provided with check weighing bar spring, and check weighing bar bottom external part is provided with check weighing bar contact.Under check weighing bar contact and the non-contacting complete vehicle curb condition of datum plate, check weighing bar disk is positioned at push rod one side-lower; Under the loaded vehicle state that check weighing bar contact contacts with datum plate, check weighing bar disk is positioned at push rod one side top.
Described limiting valve comprises valve body, is provided with piston in the valve body and forms and piston spring, is provided with sandwich valve and sandwich valve spring in the piston composition inner chamber, and sandwich valve and piston are formed bearing fit.Further, also be provided with demonstration piston rod and display pole spring in the described limiting valve valve body.
Described brake activation valve is communicated with the valve body cavity of resorption of limiting valve, and described brake cylinder is communicated with the valve body cavity of resorption of limiting valve and the valve body cavity of resorption of check weighing valve; Be provided with the step-down reservoir in the connecting pipeline between the valve body epicoele of described limiting valve and the valve body epicoele of check weighing valve.
Advantage of the present utility model is: designed rolling stock empty and load two-stage automatic regulating apparatus is arranged on brake activation valve and leads in the pipeline of brake cylinder, by whether being in contact with one another between check weighing bar contact and the datum plate, can measure the empty and load state of vehicle.When empty wagons and loaded vehicle state, the mutual alignment of check weighing bar disk and depression bar and push rod changes, and when vehicle was in complete vehicle curb condition, the brake air of supplying with brake cylinder arrived the step-down reservoir through a check weighing valve shunting part, reduces the pressure of empty wagons brake cylinder.Limiting valve is subjected to the combined action of the pressure air in brake air, brake cylinder and the step-down reservoir that brake activation valve comes, by the matching relationship between the three, determine whether the sandwich valve in the limiting valve closes, thereby the brake air that may command is come by brake activation valve enters the flow of brake cylinder, make when rolling stock is in the empty and load different conditions, brake-cylinder pressure obtains adjusting, and is applicable to the not special purpose railway vehicle empty and load adjustment of shuffling of sky, loaded vehicle.
Description of drawings
Fig. 1 is the utility model is alleviated the position at empty wagons a view.
Fig. 2 is the view of the utility model at the empty wagons retarder location.
Fig. 3 is the view of the utility model in empty wagons pressurize position.
Fig. 4 is the utility model is alleviated the position at loaded vehicle a view.
Fig. 5 is the view of the utility model at the loaded vehicle retarder location.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in the figure, rolling stock empty and load two-stage automatic regulating apparatus of the present utility model comprises brake activation valve 4, brake cylinder 5, is installed in datum plate 3 on the truck side frame, is installed on car body underframe or the truck bolster and is positioned at the check weighing valve 1 of datum plate 3 tops and is installed in limiting valve 2 on the car body underframe.
Check weighing valve 1 comprises valve body 18 and check weighing rod bearing 18a thereof, is provided with push rod 15 and push rod spring 15a in valve body 18 epicoeles, and push rod 15 axle center are provided with the deflation hole 15b that leads to atmosphere.Be provided with push rod 17 and push rod spring 17a in valve body 18 cavity of resorptions, the lower end of the external part of push rod 17 and depression bar 14 is hinged, the external part butt of the shaft of depression bar 14 and push rod 15.Valve body 18 epicoeles and cavity of resorption interconnecting part are provided with logical valve 16 and the logical valve spring 16a of ending of ending.Be provided with check weighing bar 12 in the check weighing rod bearing 18a, the shaft of check weighing bar 12 is provided with the check weighing bar disk 13 that matches with depression bar 14, and check weighing bar disk 13 tops are provided with check weighing bar spring 13a, and check weighing bar 12 bottom external parts are provided with check weighing bar contact 11.Under check weighing bar contact 11 and datum plate 3 non-contacting complete vehicle curb conditions, check weighing bar disk 13 is positioned at push rod 15 1 side-lowers; Under check weighing bar contact 11 and loaded vehicle state that datum plate 3 contacts, check weighing bar disk 13 is positioned at push rod 15 1 sides top.
Limiting valve 2 comprises valve body 24, is provided with piston composition 22 and piston spring 22a in the valve body 24.Piston is formed and is provided with sandwich valve 21 and sandwich valve spring 21a in 22 inner chambers, and sandwich valve 21 is formed 22 bearing fits with piston.Also be provided with in the valve body 24 and show piston rod 23 and display pole spring 23a.
Brake activation valve 4 is communicated with valve body 24 cavity of resorptions of limiting valve 2; Described brake cylinder 5 is communicated with valve body 18 cavity of resorptions of check weighing valve 1 and valve body 24 cavity of resorptions of limiting valve 2.Be provided with step-down reservoir 6 in the connecting pipeline between valve body 18 epicoeles of check weighing valve 1 and valve body 24 epicoeles of limiting valve 2.
Action principle of the present utility model is as follows:
During vehicle empty wagons operating mode, adjust check weighing bar contact 11, make itself and 3 of datum plates keep the gap of setting.Because datum plate 3 is installed on the truck side frame, its height with orbital plane is constant, have nothing to do with the load-carrying size.
When brake activation valve 4 was in complete relieved state, rolling stock empty and load two-stage automatic regulating apparatus and brake cylinder 5 were in no pressure air state.At this moment the piston of limiting valve 2 composition 22 and sandwich valve 21 are in uppermost position under the effect of piston spring 22a, and the sandwich valves 21 that piston is formed in 22 leave valve port, and sandwich valve 21 is in opening.Brake cylinder 5 and the space that is communicated with it communicate with atmosphere through the limiting valve 2 of unlatching and the alleviation exhaust passage of brake activation valve 4.What show piston rod 23 is in retracted position under the pressure effect that shows spring 23a.Push rod 17 is in initial position under the effect of push rod spring 17a, inhibiting device restriction depression bar 14 on the push rod 17 is swung to check weighing bar disk 13, make depression bar 14 and check weighing bar disk 13 keep certain distance, push rod 15 is thrown off with the logical valve 16 that ends under the effect of push rod spring 15a.The logical valve port that ends valve 16 is in closed condition under the effect of the logical valve spring 16a of ending, valve body 18 inner chambers are divided into upper and lower two chambeies, cavity of resorption is communicated with the piston of brake cylinder 5 and limiting valve 2 and forms 22 belows, epicoele is communicated with the piston of step-down reservoir 6 and limiting valve 2 and forms 22 tops, and leading to atmosphere by the deflation hole 15b in the push rod 15, the state that empty wagons is alleviated the position is as shown in Figure 1.
When train pipe decompression glancing impact, brake activation valve 4 actions, the pressure air of auxiliary reservoir is inflated to brake cylinder 5 through the limiting valve 2 of brake activation valve 4 and unlatching, increase along with brake cylinder 5 air pressures, the push rod 17 of check weighing valve 1 is from the cavity of resorption air pressure effect lower compression push rod spring 17a of brake cylinder 5 and be moved to the left, depression bar 14 is moved to the left with push rod 17, when touching check weighing bar disk 13, depression bar 14 begins swing, and push rod 17 continues to move to left with the increase of brake cylinder 5 air pressures, at this moment depression bar 14 moves to right for propping up spot wobble and promoting push rod 15 with check weighing bar disk 13, the logical valve 16 that ends of epicoele is backed down by push rod 15, to check weighing valve 1 epicoele and 6 inflations of step-down reservoir, the state of empty wagons retarder location as shown in Figure 2 immediately for the pressure air of check weighing valve 1 cavity of resorption.
When the air pressure of forming 22 tops when the piston of step-down reservoir 6 and limiting valve 2 rose to certain value, the pistons in the limiting valve 2 were formed 22 and are moved down, and sandwich valve 21 cuts out, and brake activation valve 4 stops to brake cylinder 5 inflations.At this moment, the logical valve 16 that ends in the check weighing valve 1 does not cut out, and the air pressure of keeping brake cylinder 5 and step-down reservoir 6 is identical and constant.Show that piston rod 23 is in the air pressure of step-down reservoir 6 with show under the pressure combined action of spring 23a and promote to stretch out that the state of empty wagons pressurize position as shown in Figure 3.
When the inflation of train pipe is alleviated, brake activation valve 4 actions, its brake hole is transformed into logical atmosphere, and the air pressure of limiting valve 2 logical braking valve ports reduces rapidly, sandwich valve 21 in it is backed down by the pressure air of logical brake cylinder 5, and the pressure air of brake cylinder 5 passes limiting valve 2 and brake activation valve 4 outside exhausts.The air pressure of check weighing valve 1 cavity of resorption reduces with the air pressure of brake cylinder 5, and the pressure air of step-down reservoir 6 will be arranged to atmosphere through limiting valve 2 and brake activation valve 4 with the pressure air of brake cylinder 5 by check weighing valve 1 cavity of resorption.Meanwhile, push rod 17 is corresponding moving to right under push rod spring 17a effect, and the push rod 15 of check weighing valve 1 moves to left, and the logical valve 16 that ends cuts out.Logical end valve 16 and close after, the pressure air of step-down reservoir 6 also by the deflation hole 15b in the push rod 15 directly row to atmosphere till draining.In exhaust process, the pressure air of forming 22 tops when the piston of limiting valve 2 drops to one regularly, and its piston spring 22a forms 22 with piston gradually again and shifts uppermost position onto, and sandwich valve 21 is opened fully, is in the normally open position.Brake cylinder 5 returns to the no gaseity of alleviating fully at last.In the alleviation process, demonstration piston rod 23 is also withdrawn with the reduction of step-down reservoir 6 pressure.
During vehicle loaded vehicle operating mode, bogie truck pillow spring deformation in compression, the check weighing valve 1 that is contained on the car body underframe will move down with car body, and check weighing bar contact 11 will reduce with the increase of load-carrying with the distance of datum plate 3.When check weighing bar contact 11 with after datum plate 3 contacts, the height and position of check weighing bar 12 no longer changes, this moment, check weighing bar disk 13 moved to the top of push rod 15.
When brake activation valve 4 was in complete relieved state, rolling stock empty and load two-stage automatic regulating apparatus and brake cylinder 5 were in no pressure air state.At this moment the piston of limiting valve 2 composition 22 is in uppermost position under the effect of piston spring 22a, and the sandwich valves 21 that piston is formed in 22 leave valve port, and sandwich valve 21 is in opening.Brake cylinder 5 and the space that is communicated with it communicate with atmosphere through the limiting valve 2 of unlatching and the alleviation exhaust passage of brake activation valve 4.Show that piston rod 23 is in retracted position under the pressure effect of display pole spring 23a.
Push rod 17 is in initial position under the effect of push rod spring 17a, depression bar 14 keeps certain distance with check weighing bar disk 13, the logical valve 16 that ends is in closed condition under the effect of the logical valve spring 16a of ending, valve body 18 is divided into upper and lower two chambeies, the piston of logical brake cylinder 5 of cavity of resorption and limiting valve 2 is formed 22 belows, the piston of logical step-down reservoir 6 of epicoele and limiting valve 2 is formed 22 tops, and leads to atmosphere by the deflation hole 15b in the push rod 15, and the state of loaded vehicle alleviation position as shown in Figure 4.
When train pipe decompression glancing impact, brake activation valve 4 actions, the pressure air of auxiliary reservoir is inflated to brake cylinder 5 through the limiting valve 2 of brake activation valve 4 and unlatching, increase along with brake cylinder 5 air pressures, the push rod 17 of check weighing valve 1 is at cavity of resorption action of air pressure lower compression push rod spring 17a and be moved to the left, because check weighing bar disk 13 is positioned at push rod 15 tops at this moment, depression bar 14 can not be that fulcrum promotion push rod 15 moves to right with check weighing bar disk 13, at this moment the logical valve 16 that ends of epicoele will can not backed down by push rod 15, the pressure air of valve body 18 cavity of resorptions can not be to epicoele and 6 inflations of step-down reservoir, so the pressure air that is come by auxiliary reservoir can not be divided to step-down reservoir 6, pressure when the pressure of brake cylinder 5 is the loaded vehicle state, the state of loaded vehicle retarder location as shown in Figure 5.
When the inflation of train pipe is alleviated, brake activation valve 4 actions, its brake hole is transformed into logical atmosphere, and the air pressure of limiting valve 2 logical braking valve ports reduces rapidly, the pressure air that sandwich valve 21 in it is braked cylinder 5 backs down, and the pressure air of brake cylinder 5 passes limiting valve 2 and brake activation valve 4 outside exhausts.The air pressure of check weighing valve 1 cavity of resorption reduces with the air pressure of brake cylinder 5.Meanwhile, push rod 17 is corresponding moving to right under push rod spring 17a effect, gets back to initial position.In exhaust process, the pressure air of forming 22 tops when the piston of limiting valve 2 drops to one regularly, and its piston spring 22a forms 22 with piston gradually again and shifts uppermost position onto, and sandwich valve 21 is opened fully and is in the normally open position.Brake cylinder 5 returns to the no gaseity of alleviating fully at last.

Claims (2)

1. rolling stock empty and load two-stage automatic regulating apparatus, comprise brake activation valve (4), brake cylinder (5), be installed in datum plate (3) on the truck side frame, be installed on car body underframe or the truck bolster and be positioned at the check weighing valve (1) of datum plate (3) top and be installed in limiting valve (2) on the car body underframe, it is characterized in that:
Described check weighing valve (1) comprises valve body (18) and check weighing rod bearing (18a) thereof, is provided with push rod (15) and push rod spring (15a) in valve body (18) epicoele, and push rod (15) axle center is provided with the deflation hole (15b) that leads to atmosphere; Be provided with push rod (17) and push rod spring (17a) in valve body (18) cavity of resorption, the lower end of the external part of push rod (17) and depression bar (14) is hinged, the external part butt of the shaft of depression bar (14) and push rod (15); Valve body (18) epicoele and cavity of resorption interconnecting part are provided with logical valve (16) and the logical valve spring (16a) that ends of ending; Be provided with check weighing bar (12) in the check weighing rod bearing (18a), the shaft of check weighing bar (12) is provided with the check weighing bar disk (13) that matches with depression bar (14), check weighing bar disk (13) top is provided with check weighing bar spring (13a), and check weighing bar (12) bottom external part is provided with check weighing bar contact (11); Under check weighing bar contact (11) and the non-contacting complete vehicle curb condition of datum plate (3), check weighing bar disk (13) is positioned at push rod (15) one side-lowers; Under check weighing bar contact (11) and loaded vehicle state that datum plate (3) contacts, check weighing bar disk (13) is positioned at push rod (15) one sides top;
Described limiting valve (2) comprises valve body (24), be provided with piston in the valve body (24) and form (22) and piston spring (22a), be provided with sandwich valve (21) and sandwich valve spring (21a) in piston composition (22) inner chamber, sandwich valve (21) is formed (22) bearing fit with piston;
Described brake activation valve (4) is communicated with valve body (24) cavity of resorption of limiting valve (2); Described brake cylinder (5) is communicated with valve body (18) cavity of resorption of check weighing valve (1) and valve body (24) cavity of resorption of limiting valve (2); Be provided with step-down reservoir (6) in the connecting pipeline between valve body (24) epicoele of valve body (18) epicoele of described check weighing valve (1) and limiting valve (2).
2. rolling stock empty and load two-stage automatic regulating apparatus according to claim 1 is characterized in that: also be provided with demonstration piston rod (23) and display pole spring (23a) in the described valve body (24).
CN2011200025212U 2011-01-06 2011-01-06 Empty and load two-stage automatic regulator for railway vehicles Expired - Lifetime CN202006807U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200025212U CN202006807U (en) 2011-01-06 2011-01-06 Empty and load two-stage automatic regulator for railway vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200025212U CN202006807U (en) 2011-01-06 2011-01-06 Empty and load two-stage automatic regulator for railway vehicles

Publications (1)

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CN202006807U true CN202006807U (en) 2011-10-12

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CN2011200025212U Expired - Lifetime CN202006807U (en) 2011-01-06 2011-01-06 Empty and load two-stage automatic regulator for railway vehicles

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107972694A (en) * 2017-11-24 2018-05-01 江苏今创车辆有限公司 A kind of braking ratio switchable device of multifunction railway car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107972694A (en) * 2017-11-24 2018-05-01 江苏今创车辆有限公司 A kind of braking ratio switchable device of multifunction railway car

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Granted publication date: 20111012