CN102371989A - Emergency brake valve for electric locomotive - Google Patents
Emergency brake valve for electric locomotive Download PDFInfo
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- CN102371989A CN102371989A CN2010102553010A CN201010255301A CN102371989A CN 102371989 A CN102371989 A CN 102371989A CN 2010102553010 A CN2010102553010 A CN 2010102553010A CN 201010255301 A CN201010255301 A CN 201010255301A CN 102371989 A CN102371989 A CN 102371989A
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- emergency brake
- spool
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Abstract
The invention discloses an emergency brake valve for an electric locomotive, which comprises a valve body, a valve core and a driving device, wherein a mounting hole which is communicated with a gas channel is arranged on the side wall of the valve body; the valve core is arranged in the gas channel through the mounting hole; the axis of the valve core is orthogonal with that of the gas channel; the valve core is radially provided with a communicating hole which can be communicated or closed with the gas channel; the valve core respectively extends towards two ends along the axis of the valve core via the mounting hole to the outside of the valve body and forms two extending ends; one end of the valve core is fixedly connected with the driving device; the other extending end of the valve core is connected with an emergency brake signal generation device; the driving device can be used for driving the valve core to rotate; and when the valve core rotates to the communicating hole and is communicated with the gas channel, the valve core drives the emergency brake signal generation device to act and outputs an emergency brake signal to a locomotive control system. According to the emergency brake valve disclosed by the invention, the emergency brake signal can be transmitted to the locomotive control system in time; and in addition, the emergency brake valve has the advantages of higher strength, long maintenance period and low manufacturing cost.
Description
Technical field
The present invention relates to a kind of emergency brake valve, especially a kind of emergency brake valve that is used for electric locomotive that has emergency brake signal generating means control group.
Background technology
Emergency brake valve is a kind of widely used brake activation valve, especially is applied in the electric locomotive.The effect that is used for the emergency brake valve of electric locomotive is to start the locomotive emergency braking system, forces the locomotive in going to take emergency braking, guarantee in the shortest time, to realize stopping, thus the train operation accident of effectively avoiding accident to cause.Therefore, emergency brake valve has become one of requisite vitals in electric locomotive.
In use, according to the specific requirement of different locomotive vehicles, emergency brake valve can be designed as the multiple model of size difference, structural similitude.At present; The emergency brake valve of installing in the electric locomotive all adopts pure physical construction; It mainly comprises valve body, spool and handle, is provided with the gas passage of axial perforation in the said valve body, and the sidewall of said valve body is provided with mounting hole; Said mounting hole connects said gas passage, the orthogonal axe setting of the axis of common said mounting hole and said gas passage.Wherein, an end of gas passage is an admission port, is used for being connected with the locomotive brake person in charge; The another port is an air extractor duct, is used for being connected with atmosphere.Said spool is installed in the said gas passage, and the orthogonal axe of the axis of spool and gas passage.One external part of said spool extends to the outside of said valve body through mounting hole along the axis of spool; The external part of this spool is captiveed joint with said handle, through the external force turning handle, drives said spool and in said gas passage, rotates; Owing to radially be provided with through hole on the spool; Promptly the axis of this through hole is identical with the valve axis direction, along with the rotation of spool, alternately forms perforation or closed state between through hole and the gas passage.When this through hole and gas passage are in sealing and are provided with, the gas passage locking, emergency brake valve is in closed condition; When being in, this through hole and gas passage connect when being provided with; The gas passage conducting, emergency brake valve is in opening, at this moment; Pressurized air in locomotive brake is responsible for exports to atmosphere through gas passage; Pressurized air sharply reduces pressure, and according to the energy brake principle, the locomotive emergency braking system produces the emergency braking action.This shows that existing emergency brake valve is through the perforation and the sealing of the gas passage of rotational valve core control emergency brake valve, thus the opening and closing of control emergency brake valve, the effect of realization emergency braking.
Though the above-mentioned emergency brake valve that is used for electric locomotive has simple in structure, easy to operate advantage, it structurally also has the some shortcomings part:
1, existing emergency brake valve; Though can realize the effect of hard brake stop; But emergency brake valve can not be in time after action be passed to locomotive control with the information of locomotive emergency braking; Therefore possibly cause the personnel's of controlling instruction mistake to occur, the operation that leads to errors causes device damage even accidents caused.
2, the valve body of existing emergency brake valve adopts stainless steel material to process, and body strength is lower, and maintenance cycle is short, and manufacturing cost is higher.
Summary of the invention
The invention provides a kind of emergency brake valve that is used for electric locomotive, this emergency brake valve that is used for electric locomotive can in time be passed to locomotive control with emergency brake signal, and intensity is higher, maintenance cycle long, low cost of manufacture.
For achieving the above object; A kind of emergency brake valve that is used for electric locomotive that the present invention proposes; Comprise valve body, spool and actuating device, be provided with the gas passage of axial perforation in the said valve body, on the sidewall of said valve body, be provided with the mounting hole that connects said gas passage; Said spool is installed in the said gas passage through said mounting hole; And the axis of said spool and the orthogonal axe of gas passage radially are provided with on the said spool and can connect or the osed top through hole with said gas passage, and said spool forms two external parts to the outside that two ends extend to said valve body along the axis of said spool respectively through said mounting hole; One external part of said spool is captiveed joint with actuating device, and its another external part is connected with the emergency brake signal generating means; Said actuating device can drive the rotation of said spool, and when said spool rotates to said through hole when connecting with said gas passage, said spool drives said emergency brake signal generating means action, and exports emergency brake signal to locomotive control.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, said emergency brake signal generating means comprises pressure switch and rotatable parts; Said rotatable parts are connected with the external part of said spool; Said pressure switch is located at the profile outside of said rotatable parts, and said pressure switch comprises housing and transmission device, and said housing is connected with said valve body through attaching parts; Said transmission device is located between said housing and the said rotatable parts; Drive said rotatable parts through spool and rotate, and the break-make of the electric connecting sheet in the said housing of said transmission mechanism control, to export emergency brake signal to locomotive control.
The aforesaid emergency brake valve that is used for electric locomotive; Wherein, said rotatable parts are disc wheel, and said transmission device comprises bearing, connecting rod, runner and spring; Said bearing is installed in said housing on the end face of said disc wheel one side; One end and the said bearing of said connecting rod are hinged, and its other end and said runner articulate, and said runner can rollably contact with said disc wheel; On the outer rim of said disc wheel, offer a groove that can hold said runner at least; One end of said spring is fixed in said connecting rod and extends in the said housing, through the break-make of the electric connecting sheet in the said housing of the extension and contraction control of spring, to export emergency brake signal to locomotive control.
The aforesaid emergency brake valve that is used for electric locomotive wherein, offers two said grooves on the outer rim of said disc wheel, said two grooves are symmetrical set along the line of centers of said disc wheel.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, said rotatable parts are cam; Said cam is connected with the external part of said spool, and said transmission device comprises bearing, connecting rod, runner and spring, and said bearing is installed in said housing on the end face of said cam one side; One end and the said bearing of said connecting rod are hinged; Its other end and said runner articulate, and said cam can rollably contact with said runner, and an end of said spring is fixed in said connecting rod and extends in the said housing; Through the break-make of the electric connecting sheet in the said housing of the extension and contraction control of spring, to export emergency brake signal to locomotive control.
The aforesaid emergency brake valve that is used for electric locomotive wherein, is provided with protective cover in the outside of said housing.
The aforesaid emergency brake valve that is used for electric locomotive; Wherein, In said valve body both sides, be respectively equipped with end cap corresponding to two external parts of said spool; On said valve body, two external parts of said spool run through its pairing end cap respectively to said end cap, between said end cap and said spool, are respectively equipped with seal ring through bolt.
The aforesaid emergency brake valve that is used for electric locomotive; Wherein, Said actuating device is a L type handle, and an end of said L type handle wears and the outside being fixed in the external part of said spool one side and extending to this external part forms a convex extension part, on the end cap that said handle one side is set, is provided with stop part; Said stop part is the annular protrusion spare with breach, said convex extension part can be in the breach of said annular protrusion spare around the external part reciprocally swinging of said spool.
The aforesaid emergency brake valve that is used for electric locomotive, wherein, the cast iron structure that said valve body is formed in one.
The aforesaid emergency brake valve that is used for electric locomotive wherein, offers the guide groove that matches with said runner on the outline of said rotatable parts.
Compared with prior art, the present invention has following characteristics and advantage:
1, the present invention is through the emergency brake signal generating means; In emergency braking, transmit emergency brake signal to locomotive control; Make locomotive control can in time learn the information of locomotive emergency braking; Avoid causing the damage of equipment, even the situation of operating accident takes place because of not learning in time that the locomotive emergency braking causes misoperation.
2, valve body of the present invention adopts cast iron materials and one-step casting moulding, compares with the valve body of available technology adopting stainless steel material, has improved the structural strength of valve body, has reduced manufacturing cost, and maintenance cycle is long.
3, the present invention offers two symmetrically arranged grooves on the outer rim of disc wheel, in rotation process, guarantees to have at least a groove to cooperate with the contraposition between the runner at disc wheel, has simplified mounting process simultaneously, has improved the efficiency of assembling of disc wheel.
4, the present invention is provided with seal ring between said end cap and said spool, makes to have good sealing effectiveness between end cap and the spool.
5, the present invention is provided with stop part on the end cap near said handle one side, plays the effect that the said handle 3 of restriction rotates, and has the effect of accurate position fixing handle position.
Description of drawings
Following accompanying drawing only is intended to the present invention is done schematic illustration and explanation, not delimit the scope of the invention.Wherein,
Fig. 1 is used for the main TV structure scheme drawing of the emergency brake valve of electric locomotive for the present invention;
Fig. 2 is used for the cross-sectional side structural representation of the emergency brake valve of electric locomotive for the present invention;
Fig. 3 is the structural representation of emergency brake signal generating means of the present invention;
Fig. 4 is another structural representation of emergency brake signal generating means of the present invention;
Fig. 5 is the cross-sectional view of overlooking of valve body of the present invention;
Fig. 6 is the structural representation of end cap of the present invention.
Among the figure: the 1-valve body; The 2-spool; The 3-handle; The 4-gas passage; 5-emergency brake signal generating means; The 51-disc wheel; The 52-pressure switch; The 53-housing; The 54-bearing; The 55-connecting rod; The 56-spring; The 57-runner; The 58-groove; The 6-end cap; The 7-seal ring; The 8-stop part; The 9-protective cover; The 10-cam; The 11-screw; The 12-mounting hole; The 13-mounting hole; The 14-external part; The 15-external part.
The specific embodiment
To understand in order technical characterictic of the present invention, purpose and effect being had more clearly, to contrast the description of drawings specific embodiment of the present invention at present.
Please refer to Fig. 1,2,5, Fig. 1 is used for main TV structure scheme drawing, the side direction cross-sectional view of the emergency brake valve of electric locomotive for the present invention respectively, and valve body of the present invention overlook cross-sectional view.As shown in the figure; The emergency brake valve that is used for electric locomotive of the present invention comprises valve body 1, spool 2 and actuating device, in this enforcement; This actuating device is a L type handle 3; But the present invention also is not limited thereto, and also can adopt other mechanical systems, can drive spool 2 rotations as long as guarantee actuating device.Be provided with the gas passage 4 of axial perforation in the said valve body 1; Correspondence is provided with two mounting holes 12,13 on the sidewall of said valve body 1; Said mounting hole 12,13 connects the said spool 2 of said gas passage 4 (as shown in Figure 5) respectively and is installed in the said gas passage 4, and the orthogonal axe of the axis of spool and gas passage.Radially be provided with on the said spool 2 and can connect or the osed top through hole with said gas passage 4; Said spool 2 form two external parts 14,15 to the outside that two ends extend to said valve body 1 along the axis of spool respectively through said mounting hole 12,13; One external part 14 of said spool 2 is captiveed joint with said handle 3; Under the effect of external force, handle 3 can rotate along A direction among Fig. 1, and then to drive spool 2 be that centre of gration rotates in gas passage 4 with the axis of spool 2; Connect or locking with control gaseous passage 4, thereby reach the unlatching of control emergency brake valve or the effect of closing.In the present invention, another external part 15 of said spool 2 is connected with emergency brake signal generating means 5.Said handle 3 can drive said spool along A direction rotation among Fig. 1; Said handle 3 drives said spool 2 rotations; When said spool rotates to said through hole and said gas passage when connecting; Said spool 2 drives said emergency brake signal generating means 5 actions, generates emergency brake signal, and exports emergency brake signal to locomotive control through external circuits.Like this, make locomotive control can in time learn the information of locomotive emergency braking, avoid causing the damage of equipment, even the situation of operating accident takes place because of not learning in time that the locomotive emergency braking causes misoperation.
As a kind of optional embodiment of the present invention, please refer to Fig. 3, be the structural representation of emergency brake signal generating means of the present invention.As shown in Figure 3; Said emergency brake signal generating means comprises pressure switch 52 and rotatable parts, and in the present embodiment, said rotatable parts are disc wheel 51; Said rotatable parts are connected with the external part 15 of said spool 2, make disc wheel 51 rotate with spool 2.Preferably, as shown in Figure 2, said disc wheel 51 is captiveed joint with the external part 15 of said spool 2 through the screw 11 that runs through said disc wheel 51 centers, to guarantee disc wheel 51 and spool 2 bonded assembly firm reliabilities.Wherein, Said pressure switch 52 is located at the profile outside of said rotatable parts; Said pressure switch 52 comprises housing 53 and transmission device; Said housing 53 is affixed through attaching parts 59 and said valve body 1, and said transmission device is located between said housing 53 and the said rotatable parts, and said transmission device and said disc wheel 51 connect.Drive said rotatable parts through spool 2 and rotate, and the break-make of the electric connecting sheet in said transmission device drives said housing, to export emergency brake signal to locomotive control.
As a kind of optional embodiment of the present invention; As shown in Figure 3; Said transmission device comprises bearing 54, connecting rod 55, runner 57 and spring 56; Said bearing 54 is installed in said housing 53 on the end face of said disc wheel 51 1 sides, and an end and the said bearing 54 of said connecting rod 55 are hinged, makes that connecting rod 55 can be around these bearing 54 swings; The other end of said connecting rod 55 articulates through pivot and said runner 57, makes that runner 57 can be around this pivot rotation.Said runner 57 can rollably contact with said disc wheel 51.On the outer rim of said disc wheel 51, offer a groove 58 that can hold said runner 57 at least, make said runner 57 can be embedded in the said groove 58.One end of said spring 56 is fixed in said connecting rod 55 and extends in the said housing 53; And be connected with the electric connecting sheet in the said housing 53; Through being switched on or switched off of the electric connecting sheet in the said housing 53 of the telescopic drive of spring 56; Thereby the generation emergency brake signal is to export this emergency brake signal to locomotive control.Wherein, the process of concrete annexation in spring 56 and the housing 53 between the electric connecting sheet and generation emergency brake signal is known technology, is not described in detail at this.
As the another kind of optional embodiment of the present invention; Like Fig. 1, shown in 2; In said valve body 1 both sides, be respectively equipped with end cap 6 corresponding to two external parts 14,15 of said spool 2; On said valve body 1, two external parts 14,15 of said spool 2 run through its pairing end cap 6 respectively and extend to the outside of this end cap 6 said end cap 6, make two external parts 14,15 to be connected with handle 3 and disc wheel 51 respectively through bolt.Between said end cap 6 and said spool 1, be respectively equipped with seal ring 7, make to have good sealing effectiveness between end cap 6 and the spool 1.
As the another kind of optional embodiment of the present invention, as shown in Figure 1, an end of said L type handle wears and the outside being fixed in the external part 14 of said spool 2 one sides and extending to this external part forms a convex extension part, and captives joint with said spool 2 through pin.Please refer to Fig. 6, be the structural representation of end cap of the present invention.As shown in Figure 6, on the end cap 6 that said handle 3 one sides are set, be provided with stop part 8.In the present embodiment, said stop part 8 is for having the annular protrusion spare of breach, said convex extension part can be in the breach of said annular protrusion spare around external part 14 reciprocally swingings of said spool 2, thereby the anglec of rotation of control handle.But the present invention also is not limited thereto, as long as stop part can play the position-limiting action to handle.For example: said stop part 8 can also be arranged on two columns with certain intervals or the taper projection piece on the convex extension part swinging track of said handle 3; The convex extension part of said handle 3 can be between two columns or taper projection piece around external part 14 reciprocally swingings of said spool 2, thereby reach the effect of the anglec of rotation of control handle.
Because disc wheel 51 only offers a groove 58; And the rotational angle of disc wheel 51 is restricted (because the rotation of handle 3 receives the cause of stop part 8 restrictions); Thereby when the component location guide plate wheel; For the groove 58 that guarantees disc wheel 51 can match with runner 57, the groove 58 that just need make disc wheel 51 has so just increased the complexity and the installation difficulty of erection work near runner 57.In order to simplify mounting process, to reduce installation difficulty; Improve installation effectiveness, as another optional embodiment of the present invention, as shown in Figure 3; On the outer rim of said disc wheel 51, offer two said grooves 58, said two grooves 58 are symmetrical set along the line of centers of said disc wheel 51.Like this, when disc wheel 51 is installed, has a groove 58 at least near runner 57, thereby guarantee in disc wheel 51 rotation processes, groove 58 cooperates with contraposition between the runner 57.
Preferred embodiment a kind of as the present invention, as shown in Figure 3, the cross section of said groove 58 is in the shape of the letter V, in order to hold said runner 57.But the present invention also is not limited thereto, and for example, the cross section of said groove 58 can also be circular arc or other suitable shape, as long as can play the effect of holding runner 57, and guarantees that runner 57 can get final product along the outer rim rolling of disc wheel 51.
As another preferred embodiment of the present invention, offer guide groove on the outline of said disc wheel 51, said guide groove can match with runner 57, thereby guides said runner 57 to match with said disc wheel 51.
As another preferred embodiment of the present invention; Like Fig. 2, shown in 3, be provided with protective cover 9 in the outside of the housing 53 of said pressure switch 52, prevent that extraneous dust and sewage from invading enclosure interior; Play the effect of protection, and prolonged the service life of pressure switch.
As the present invention another preferred embodiment, the cast iron structure that said valve body 1 is formed in one.Because valve body 1 adopts cast iron materials and one-step casting moulding, thereby has improved the structural strength of valve body, has reduced manufacturing cost.
Principle of work of the present invention is: as shown in Figure 1, when the electric locomotive cruising, the gas passage 4 in the emergency braking valve body 1 is in sealing setting with the through hole of spool 2, and emergency brake valve is in closed state.At this moment, the runner 57 of transmission device is resisted against under the effect of spring 56 in the groove 58 of disc wheel 51 just, and spring 56 is positioned at maximum stretch position.Like this; When spring 56 is positioned at maximum stretch position; The electric connecting sheet a of pressure switch, a ' are in conducting state, and electric connecting sheet b, b ' are in off-state, and pressure switch is to the locomotive control output normal run signal of locomotive (non-emergent braking quotation marks).When locomotive meets with emergency case, when needing emergency brake, utilize external force to pull handle 3, handle 3 drives spool 2 and in gas passage 4, rotates.When handle 3 drive spools 2 rotated to assigned position, gas passage 4 was in breakthrough status with the through hole of spool 2, because an end of gas passage 4 is communicated with the brake pipe of locomotive; The other end and atmosphere; At this moment, the pressurized air in the brake pipe derives through gas passage 4, and pressurized air sharply reduces pressure; According to the energy brake principle, produce the emergency braking effect.In addition, as shown in Figure 3, when spool 2 rotates, drive disc wheel 51 and rotate together, make runner 57 be separated with the groove 58 of disc wheel 51 gradually, and roll relatively along the arc surface of disc wheel 51.Like this; The arc surface of disc wheel 51 is exerted pressure to transmission device; Make spring 56 be compressed, the electric connecting sheet a in the driving downforce switch case 53 of spring 56, a ' break off, and electric connecting sheet b, b ' conducting; Produce the emergency brake signal, pressure switch is to locomotive control output emergency brake signal.The break-make of the stretching through spring 56 and the electric connecting sheet of compression control pressure switch and pressure switch are known technology through external circuits to the locomotive control transmission concrete structure that signal adopted, and are not described in detail at this.The present invention is through the emergency brake signal generating means; In emergency braking, transmit emergency brake signal to locomotive control; Make locomotive control can in time learn the information of locomotive emergency braking; Avoid causing the damage of equipment, even the situation of operating accident takes place because of not learning in time that the locomotive emergency braking causes misoperation.And valve body of the present invention adopts cast iron materials and one-step casting moulding, compares with the valve body of available technology adopting stainless steel material, has improved the structural strength of valve body, has reduced manufacturing cost.
As the another kind of optional embodiment of the present invention, please refer to Fig. 4, be another structural representation of emergency brake signal generating means of the present invention.As shown in Figure 4, said rotatable parts are cam 10, and the center of said cam 10 is connected with the external part 15 of said spool 2.Transmission device in the present embodiment is identical parts with transmission device in the foregoing description, and its concrete structure is not described in detail at this.In the present embodiment, said cam 10 can rollably contact with said runner 57.Like this, when cam 10 rotated with spool 2, cam 10 can promote connecting rod 55 through runner 57 and rotate around bearing 54, and then realizes the flexible of spring 56.Utilize the break-make of the telescopic drive housing 53 interior electric connecting sheets of spring 56, to send the emergency brake signal to locomotive control.But the structure of the emergency brake signal generating means of invention also is not limited thereto; As long as when rotating said handle when driving said spool and rotating; Said spool can drive said emergency brake signal generating means action, transmits emergency brake signal to locomotive control and gets final product.
Other structures, effect and the principle of work of present embodiment is identical with aforementioned each embodiment, no longer is repeated in this description at this.
The above is merely the schematic specific embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, equivalent variations of under the prerequisite that does not break away from design of the present invention and principle, having done and modification all should belong to the scope that the present invention protects.
Claims (10)
1. emergency brake valve that is used for electric locomotive; Comprise valve body, spool and actuating device; Be provided with the gas passage of axial perforation in the said valve body, on the sidewall of said valve body, be provided with the mounting hole that connects said gas passage, said spool is installed in the said gas passage through said mounting hole; And the axis of said spool and the orthogonal axe of gas passage; Radially be provided with on the said spool and can connect or the osed top through hole with said gas passage, it is characterized in that, said spool forms two external parts to the outside that two ends extend to said valve body along the axis of said spool respectively through said mounting hole; One external part of said spool is captiveed joint with actuating device, and its another external part is connected with the emergency brake signal generating means; Said actuating device can drive the rotation of said spool, and when said spool rotates to said through hole when connecting with said gas passage, said spool drives said emergency brake signal generating means action, and exports emergency brake signal to locomotive control.
2. the emergency brake valve that is used for electric locomotive as claimed in claim 1 is characterized in that, said emergency brake signal generating means comprises pressure switch and rotatable parts; Said rotatable parts are connected with the external part of said spool; Said pressure switch is located at the profile outside of said rotatable parts, and said pressure switch comprises housing and transmission device, and said housing is connected with said valve body through attaching parts; Said transmission device is located between said housing and the said rotatable parts; Drive said rotatable parts through spool and rotate, and the break-make of the electric connecting sheet in the said housing of said transmission mechanism control, to export emergency brake signal to locomotive control.
3. the emergency brake valve that is used for electric locomotive as claimed in claim 2; It is characterized in that said rotatable parts are disc wheel, said transmission device comprises bearing, connecting rod, runner and spring; Said bearing is installed in said housing on the end face of said disc wheel one side; One end and the said bearing of said connecting rod are hinged, and its other end and said runner articulate, and said runner can rollably contact with said disc wheel; On the outer rim of said disc wheel, offer a groove that can hold said runner at least; One end of said spring is fixed in said connecting rod and extends in the said housing, through the break-make of the electric connecting sheet in the said housing of the extension and contraction control of spring, to export emergency brake signal to locomotive control.
4. the emergency brake valve that is used for electric locomotive as claimed in claim 3 is characterized in that, on the outer rim of said disc wheel, offers two said grooves, and said two grooves are symmetrical set along the line of centers of said disc wheel.
5. the emergency brake valve that is used for electric locomotive as claimed in claim 2; It is characterized in that said rotatable parts are cam, said cam is connected with the external part of said spool; Said transmission device comprises bearing, connecting rod, runner and spring; Said bearing is installed in said housing on the end face of said cam one side, and an end and the said bearing of said connecting rod are hinged, and its other end and said runner articulate; Said cam can rollably contact with said runner; One end of said spring is fixed in said connecting rod and extends in the said housing, through the break-make of the electric connecting sheet in the said housing of the extension and contraction control of spring, to export emergency brake signal to locomotive control.
6. like each described emergency brake valve that is used for electric locomotive in the claim 2 to 5, it is characterized in that, be provided with protective cover in the outside of said housing.
7. like each described emergency brake valve that is used for electric locomotive in the claim 1 to 5; It is characterized in that; In said valve body both sides, be respectively equipped with end cap corresponding to two external parts of said spool; On said valve body, two external parts of said spool run through its pairing end cap respectively to said end cap, between said end cap and said spool, are respectively equipped with seal ring through bolt.
8. the emergency brake valve that is used for electric locomotive as claimed in claim 7; It is characterized in that; Said actuating device is a L type handle, and an end of said L type handle wears and the outside being fixed in the external part of said spool one side and extending to this external part forms a convex extension part, on the end cap that said handle one side is set, is provided with stop part; Said stop part is the annular protrusion spare with breach, said convex extension part can be in the breach of said annular protrusion spare around the external part reciprocally swinging of said spool.
9. like each described emergency brake valve that is used for electric locomotive in the claim 1 to 5, it is characterized in that the cast iron structure that said valve body is formed in one.
10. like each described emergency brake valve that is used for electric locomotive in the claim 3 to 5, it is characterized in that, offer the guide groove that matches with said runner on the outline of said rotatable parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010255301.0A CN102371989B (en) | 2010-08-13 | 2010-08-13 | Emergency brake valve for electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010255301.0A CN102371989B (en) | 2010-08-13 | 2010-08-13 | Emergency brake valve for electric locomotive |
Publications (2)
| Publication Number | Publication Date |
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| CN102371989A true CN102371989A (en) | 2012-03-14 |
| CN102371989B CN102371989B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010255301.0A Expired - Fee Related CN102371989B (en) | 2010-08-13 | 2010-08-13 | Emergency brake valve for electric locomotive |
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| CN101774375A (en) * | 2010-03-12 | 2010-07-14 | 北京南车时代机车车辆机械有限公司 | Air brake valve for locomotive and use method thereof |
| CN201761484U (en) * | 2010-08-13 | 2011-03-16 | 中国北车集团大同电力机车有限责任公司 | Emergency brake valve for electrical locomotive |
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2010
- 2010-08-13 CN CN201010255301.0A patent/CN102371989B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576529A (en) * | 1967-02-24 | 1971-04-27 | Marvin L Garrison | Deceleration warning device |
| CN2041381U (en) * | 1988-08-01 | 1989-07-19 | 舒军雄 | Cylinder valve |
| US5831232A (en) * | 1996-11-12 | 1998-11-03 | Westinghouse Air Brake Company | Pneumatic emergency brake application valve and an associated electrical signaling switch |
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| CN101774376A (en) * | 2010-03-12 | 2010-07-14 | 北京南车时代机车车辆机械有限公司 | Air brake valve for locomotive and use method thereof |
| CN101774375A (en) * | 2010-03-12 | 2010-07-14 | 北京南车时代机车车辆机械有限公司 | Air brake valve for locomotive and use method thereof |
| CN201761484U (en) * | 2010-08-13 | 2011-03-16 | 中国北车集团大同电力机车有限责任公司 | Emergency brake valve for electrical locomotive |
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| CN102371989B (en) | 2014-04-02 |
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