JP2018043589A5 - - Google Patents

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JP2018043589A5
JP2018043589A5 JP2016178754A JP2016178754A JP2018043589A5 JP 2018043589 A5 JP2018043589 A5 JP 2018043589A5 JP 2016178754 A JP2016178754 A JP 2016178754A JP 2016178754 A JP2016178754 A JP 2016178754A JP 2018043589 A5 JP2018043589 A5 JP 2018043589A5
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gas
port
pressure
gas chamber
gas pressure
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また、磁束によってレール4と磁極15との間に電磁吸引力が発生するので、この電磁吸引力によりレール4とブレーキシュー18が接触するときは、電磁吸引力とブレーキシュー18の摩擦係数によって発生する摩擦制動力利用できる。摩擦制動力を利用する場合は、摩擦による発熱を抑制するために適当な冷媒供給機構を設けることが好ましい。したがって、広義におけるレールブレーキは、レール4についての渦電流制動力と摩擦制動力とを合わせた制動力を意味するが、以下では、狭義の渦電流制動力をレールブレーキとする。 Further, since an electromagnetic attractive force is generated between the rail 4 and the magnetic pole 15 by the magnetic flux, when the rail 4 and the brake shoe 18 come into contact with each other due to the electromagnetic attractive force, the electromagnetic attractive force and the friction coefficient of the brake shoe 18 generate. the friction braking force can be used. When the friction braking force is used, it is preferable to provide an appropriate refrigerant supply mechanism in order to suppress heat generation due to friction. Therefore, the rail brake in a broad sense means a braking force that is a combination of the eddy current braking force and the friction braking force for the rail 4, but in the following, the narrowly defined eddy current braking force is referred to as a rail brake.

図3は、ブレーキ制御及び三方弁100が操作状態のときを示す図である。以下では操作状態における第1ポート106、第2ポート108、第3ポート110をそれぞれ第1ポート106B、第2ポート108B、第3ポート110Bと呼ぶ。三方弁100の操作状態では、第2ポート108Bは、他のどのポートにも連通せず閉鎖状態であり、第1ポート106Bは、第3ポート110Bと連通する。この連通状態によって、気体圧シリンダ22の第2気体室32は、ヘッド側ポート36と第3ポート側流路88と第3ポート110Bと第1ポート106Bと第ポート側流路8と接続点84と気体圧供給路80とを経て気体圧供給源70に接続される。第2気体室32の圧力は、気体圧供給源70の圧力PSである。気体圧シリンダ22の第1気体室30は、三方弁100を介さずに気体圧供給路80を経て気体圧供給源70に接続される。第1気体室30の圧力は、気体圧供給源70の圧力PSである。 FIG. 3 is a diagram illustrating a state where the brake control and the three-way valve 100 are in an operating state. Hereinafter, the first port 106, the second port 108, and the third port 110 in the operating state are referred to as the first port 106B, the second port 108B, and the third port 110B, respectively. In the operation state of the three-way valve 100, the second port 108B is in a closed state without communicating with any other port, and the first port 106B is in communication with the third port 110B. This communication state, connecting the second gas chamber 32 of the pneumatic cylinder 22 has a head-side port 36 and third port-side channel 88 and the third port 110B and the first port 106B and the first port side flow passage 82 The gas pressure supply source 70 is connected via a point 84 and a gas pressure supply path 80. The pressure in the second gas chamber 32 is the pressure P S of the gas pressure supply source 70. The first gas chamber 30 of the gas pressure cylinder 22 is connected to the gas pressure supply source 70 via the gas pressure supply path 80 without passing through the three-way valve 100. The pressure of the first gas chamber 30 is the pressure P S of the gas pressure supply source 70.

図4と図5の比較によって次のことが分かる。図2、図3の構成の昇降装置20においては、仮に気体圧供給源70からの気体供給がなくなる等の支障が生じても、ブレーキ制御部124が操作状態の指令を出すと、ピストン50の両側における受圧面積の差によって、ピストン50は第2気体室32側から第1気体室30側に向かう方向に自己起動的に移動する。これによって、鉄道車両は、緊急時等でレールブレーキを動作させたいときに、確実にレールブレーキを働かせることができる。 The following can be understood by comparing FIG. 4 and FIG. In the lifting device 20 having the configuration shown in FIGS. 2 and 3, even if troubles such as the gas supply from the gas pressure supply source 70 being lost occur, if the brake control unit 124 issues an operation state command , Due to the difference in pressure receiving area on both sides, the piston 50 moves in a self-starting manner in a direction from the second gas chamber 32 side toward the first gas chamber 30 side. As a result, the railway vehicle can reliably operate the rail brake when it is desired to operate the rail brake in an emergency or the like.

最初に、図6(a)を用いて、気体圧シリンダ132と四方弁140の内容を述べる。気体圧シリンダ132のシリンダ部26は、気体圧シリンダ22のシリンダ部26と同じである。ピストン50も気体圧シリンダ22のピストン50と同じである。ピストンロッド134は、外径が気体圧シリンダ22のピストンロッド52よりも細い。気体圧シリンダ22のピストン50における第1気体室30側の受圧面積が第2気体室32側の受圧面積の80%以下10%以上の範囲とすると、気体圧シリンダ132においては第1気体室30側の受圧面積は第2気体室32側の受圧面積の90%以上である。例えば、ピストン50の外径に対し20%の太さのピストンロッド134とするときは、第1気体室30側の受圧面積は第2気体室32側の受圧面積の96%となる。従来技術では、この程度の太さのピストンロッド134が用いられる。 First, the contents of the gas pressure cylinder 132 and the four-way valve 140 will be described with reference to FIG. The cylinder part 26 of the gas pressure cylinder 132 is the same as the cylinder part 26 of the gas pressure cylinder 22. The piston 50 is the same as the piston 50 of the gas pressure cylinder 22. The piston rod 134 is thinner than the piston rod 52 of the gas pressure cylinder 22. When the pressure receiving area on the first gas chamber 30 side in the piston 50 of the gas pressure cylinder 22 is in the range of 80% or less and 10% or more of the pressure receiving area on the second gas chamber 32 side, the first gas chamber 30 in the gas pressure cylinder 132 is used. The pressure receiving area on the side is 90% or more of the pressure receiving area on the second gas chamber 32 side. For example, when the piston rod 134 has a thickness of 20% with respect to the outer diameter of the piston 50, the pressure receiving area on the first gas chamber 30 side is 96 % of the pressure receiving area on the second gas chamber 32 side. In the prior art, a piston rod 134 having such a thickness is used.

(b)は、気体圧供給路136に気体圧供給源70からの気体供給がされなくなった後で、制御装置120のブレーキ制御部124の指令によって四方弁140が操作状態に切り替わった場合を示す。このとき、第2気体室32には気体圧供給路136からの気体供給がないので、それ以前の圧力のP0の状態を維持する。第1気体室30は、大気開放されるので、P 0の圧力である。 (B) shows the case where the four-way valve 140 is switched to the operating state by the command of the brake control unit 124 of the control device 120 after the gas supply from the gas pressure supply source 70 is not supplied to the gas pressure supply path 136. . At this time, no gas is supplied from the gas pressure supply path 136 to the second gas chamber 32, so the state of P 0 at the previous pressure is maintained. Since the first gas chamber 30 is open to the atmosphere , the pressure is P 0 .

(c)は(b)からある程度の時間が経過し、三方弁100が操作状態で、気体圧シリンダ22が安定した状態にあるときである。ここでは、(a),(b)から変化がなく、第2気体室32は圧力P0の状態を維持し、第1気体室30は、大気に開放されるので、P0の圧力である。したがって、ピストン50は、(a),(b)の状態を維持し、移動せず、レールブレーキはかからない状態のままである。 (C) is a time when a certain amount of time has elapsed from (b), the three-way valve 100 is in an operating state, and the gas pressure cylinder 22 is in a stable state. Here, (a), no change from (b), the second gas chamber 32 maintains the state of the pressure P 0, the first gas chamber 30, since it is open to the atmosphere, at a pressure of P 0 is there. Therefore, the piston 50 maintains the states (a) and (b), does not move, and remains in a state where the rail brake is not applied.

JP2016178754A 2016-09-13 2016-09-13 Rail brake system for rail vehicles Active JP6846731B2 (en)

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JP2016178754A JP6846731B2 (en) 2016-09-13 2016-09-13 Rail brake system for rail vehicles

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JP2016178754A JP6846731B2 (en) 2016-09-13 2016-09-13 Rail brake system for rail vehicles

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JP2018043589A5 true JP2018043589A5 (en) 2019-10-24
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CN110566604B (en) * 2019-09-23 2024-05-14 陕西法士特齿轮有限责任公司 Retarder main circulation system
CN112576658B (en) * 2020-12-18 2022-06-10 陕西法士特齿轮有限责任公司 Air path control system and control method of AMT brake

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JPS4833363Y1 (en) * 1968-05-10 1973-10-11
DE1755827A1 (en) * 1968-06-27 1971-08-12 Max Baermann Magnetic brake for vehicles, preferably for rail-bound vehicles
DE3004705C2 (en) * 1980-02-08 1986-09-11 Thyssen Industrie Ag, 4300 Essen Brake for rail vehicles

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