CN1672998A

CN1672998A - Railway carriage derailing detector

Info

Publication number: CN1672998A
Application number: CN 200510066004
Authority: CN
Inventors: 陈金祥; 何光辉; 郭浩; 任力
Original assignee: BEIJING TONGLI XINGLU TECHNOLOGY Co Ltd; LABOR SERVICE CO TANGSHAN TRAFFIC SECTION TIANJIN RAILWAY SUBBUREAU
Current assignee: Beijing Tongli Xinglu Technology Co., Ltd.
Priority date: 2005-04-19
Filing date: 2005-04-19
Publication date: 2005-09-28
Anticipated expiration: 2025-04-19
Also published as: CN100344486C

Abstract

The railway carriage derailing detector includes housing, six air chambers, A, B, C, D, E and F, communicated via five channels, a, b, c, d and e. Normally, the train pipe air pressure and the springs a and c make the valve cores a and b hold the valve mouths a and b and the spring b hold the valve rod. In case of derailing train, the acceleration makes the weight blocks generate downward force to open valve mouth b, so as to make the air in the air chamber C exhausted via the valve mouth b, channels d and e and exhaust port c to atmosphere, the pressure in chamber D higher than that in chamber C, the valve rod pushed to open valve mouth a for fast exhaust air chamber A, and the train braked emergently.

Description

Railway carriage derailing detector

Technical field

The present invention relates to the train braking technical field, particularly the derail automatic train stop

The technical field technology.

Background technology

Derail is an extremely complicated problems, the reason that causes derailing is diversified, owing to the result who comprises many-sided reason combined actions such as vehicle condition, cargo loading, line status and operation conditions, particularly under the situation that train speed improves, take place easily often.Vehicle after the derailing continues operation can cause disturbing accident, not only makes life and property cause massive losses, but also can cause extremely abominable international influence.

At present, international, domestic going up about the theoretical investigation and the expeditious measures of lorry derailing aspect used, and following several scheme is roughly arranged:

1, the parameter of analyzing locomotive running state is forecast vehicle derailing.According to showing at the update information of ASME/IEEE railway in 2004 annual meeting that U.S. Maryland Baltimare holds on April 6th to 8,2004: ten behind this field can accurately detecting at present of being in a leading position that U.S. of level obtains, forecast machine with interior vehicle off-line, and behind the machine vehicle off-lines beyond 10 can't accurately forecast; Especially under the situation of empty, loaded vehicle shuffling, be difficult to performance especially, and this scheme is in laboratory scientific theory conceptual phase at present, can not be practical.

2, mounting vehicle running state ground safety monitoring system (TPDS).This system's collection travel condition of vehicle detects, overload detects, unbalance loading detects, flat sliding is detected on one.The weak point of its scheme has 3 points: one, TPDS are installed in fixing place, can only detect by the state of vehicle herein, and the train off-line to overturn be ccasual, who does not grasp the place of its derailing; Two, the TPDS system not only invests greatly, and relates to departments such as communication, worker's affair, vehicle, electric power, coordinates the comparison difficulty; Three, adopt telemetry system, system itself can not cause emergency braking, and only is to tell the driver uncertain state, allows take measures behind driver's affirmation state again, has promptly missed an opportunity because of a delay since like this and excuse me drives a vehicle order.

3, the fixed derail autoalarm in ground.Owing to the reason of economy and practical operation is installed the fixed derail autoalarm in ground targetedly except special fixedly driving sections such as tunnels, Dayao Mountain, on other most Crane Rails automatic checkout equipment is not installed.At this stage, except that tighten security facility and management, still there is not the thorough way that prevents derail.

4, truck vehicle itself installs derailment detector additional.Utilize the brake system of train itself, the air pressure derailment detector is installed on the compartment.But, present product detected state instability, response time is long, the requirement of stopping immediately after the venting of train, the braking procedure out of reach derail.

The technology contents of invention

For this reason, the objective of the invention is to propose a kind of train that is applicable to, particularly be applicable to the goods train vehicle Derail detector, this device is accurate to the vehicle derailing status detection, detected state is stable, response time is short, and the venting of train, braking procedure weak point reach the requirement of stopping immediately after the derail.

For achieving the above object, the technical solution adopted in the present invention is: a kind of railway carriage derailing detector, comprise housing, admission port, exhausr port a, also comprise air chamber A, air chamber B, air chamber C, air chamber D, air chamber E, air chamber F, valve port a, valve port b, path a, path b, path c, path d, path e, spring a, spring b, spring c, valve rod, mass, lamina membranacea, spool a, spool b, exhausr port b; Housing is fixed on the car body of train; Admission port is arranged on housing top, and an end is communicated with the train pipe of train, and the other end is communicated with air chamber A; Exhausr port a is arranged on the housing, and an end is communicated with air chamber B, and the other end is communicated with atmosphere; Air chamber A and air chamber B are arranged on the top in the housing; The middle part of housing is set to cavity, and lamina membranacea is arranged in the cavity, and lamina membranacea one end is fixed on the inwall of cavity, and the other end is fixed on around the bottom sides of valve rod, and cavity is divided into two air chambers that do not link, and the top is air chamber C, and that following is air chamber D; Air chamber E is arranged on the below of air chamber D; Air chamber F is arranged on the bottom in the housing, below air chamber E; Air chamber A is communicated with by path a with air chamber C; Air chamber C is communicated with by path c with air chamber E; Air chamber A is communicated with by path b with air chamber D; Mass is arranged in the air chamber F, and its outer wall and air chamber F inwall match, and air chamber F is divided into two parts up and down; Air chamber E is communicated with by valve port b with the top of air chamber F; Two parts up and down of air chamber F are communicated with by path d; Exhausr port b is arranged on lower part of frame, and an end is communicated with atmosphere, and the other end is communicated with the bottom of air chamber F by path e; Air chamber A is communicated with by valve port a with air chamber B; Air chamber E is communicated with by valve port b with air chamber F; Spool a is arranged on the valve port a, and a matches with valve port; Spring a is arranged in the housing, and an end is fixed on the top of housing, and the other end is fixed on the spool a, and spool a is pressed on the valve port a; Spool b is arranged in the epicoele of air chamber F, is fixed on the mass, and b matches with valve port; Spring c is arranged in the cavity of resorption of air chamber F, and an end is fixed on the bottom of the cavity of resorption of air chamber F, and the other end is fixed on the bottom of mass, and spool b is withstood on the valve port b; Spring b is arranged in the air chamber C, and an end is fixed on the top of air chamber C, and the other end is fixed on the bottom of valve rod, and valve rod is pressed down; Valve rod passes air chamber B and air chamber C, and the one end is fixedly connected on the lamina membranacea, and the other end is facing to spool a;

Air chamber C adds air chamber E volume sum greater than air chamber D volume;

The aperture of path a, path b, path c, path d, path e is more than or equal to 0.5 millimeter, smaller or equal to 2.5 millimeters; The aperture of valve port a is more than or equal to 20 millimeters; The aperture of valve port b is more than or equal to 2 millimeters; The aperture of exhausr port a is more than or equal to 20 millimeters;

The aperture of path a is smaller or equal to the aperture of path d;

Stem bottom arrives the distance of spool a bottom more than 1 millimeter to the distance at the top of air chamber C greater than the top of valve rod;

Housing comprises upper shell, lower house, loam cake and lower cover; Loam cake is arranged on the upper shell crown center, is connected with upper shell is airtight; Lower cover is arranged on the bottom of lower house, is connected with lower house; The top of lower house is connected with the bottom of upper shell is airtight; Air chamber E is the bottom of air chamber D, the bottom of upper shell and the cavity that top surrounded of lower house, or is the bottom of air chamber D and the cavity that top surrounded of lower house; The end of spring a is fixed on the bottom of loam cake; Exhausr port b is arranged on down and covers;

Valve rod is provided with the valve rod base; Lamina membranacea is fixed on around the side of valve rod base; Valve rod is fixed on the valve rod base; The end of spring b is fixed on the valve rod base.

The principle of work of railway carriage derailing detector provided by the invention:

The train tube pressure air enters air chamber A through admission port when normal position, and enters air chamber C and air chamber D respectively through path a, path b, enters air chamber E through path c simultaneously.This moment, valve port b closed under the effect of spring c; Under the effect of spring b, valve rod is positioned at the bottom; Under the effect of spring a, valve port a closes; In this state, the B air chamber is through exhausr port b, and air chamber F all links to each other with atmosphere through exhausr port c.

During derail, the acceleration/accel of its generation makes mass produce downward application force, when this application force is enough to overcome the application force that spring c makes progress-be acceleration/accel when surpassing the thresholding of setting, valve port b opens, the pressure air of air chamber C is rapidly through valve port b, path d, path e at this moment, from exhausr port c exhaust to atmosphere, cause air chamber D pressure air to be higher than air chamber C pressure air, thereby promotion valve rod, open valve port a, make air chamber A (or train pipe) pressure air rapidly through air chamber B, exhausr port b exhaust to atmosphere, thereby reach the purpose that makes train produce emergency braking rapidly.

Air chamber C adds air chamber E volume sum greater than air chamber D volume, is under normal condition, prevents the air chamber accidental gas leakage, and air chamber C air pressure reduces too fast, produces unsteady state, makes whole device unstable; The aperture of path a, path b, path c, path d, path e is more than or equal to 0.5 millimeter, smaller or equal to the aperture of 2.5 millimeters and valve port b more than or equal to 2 millimeters realizations that guaranteed the momentary status of device; The aperture of valve port a has guaranteed device venting speed more than or equal to 20 millimeters apertures with exhausr port a more than or equal to 20 millimeters; The aperture of path a when making snap action, guarantees that air chamber C air pressure is lower than the air pressure of air chamber D smaller or equal to the aperture of path d; Stem bottom to the distance at the top of air chamber C greater than the top of valve rod to the distance of spool a bottom more than 1 millimeter, to guarantee promptly to open valve port a.

After train stopped, train tube pressure reduced to zero, and under the effect of spring c, valve port b closes; Under the effect of spring b, valve rod moves down; Under the effect of spring a, valve port a closes, and this device automatically restores to normal position, can fill wind through admission port to this device once more, enters next actuation cycle.

Technique scheme of the present invention compared with prior art has the following advantages: accurate to the derail status detection, detected state is stable, and response time is short, and the venting of train, braking procedure weak point reach the requirement of stopping immediately after the derail.

Description of drawings

Structural representation during the normal position of Fig. 1 railway carriage derailing detector of the present invention;

Structural representation during Fig. 2 railway carriage derailing detector working position of the present invention;

The specific embodiment

As shown in Figure 1, 2: with the lorry Derail detector is example: because the car body of lorry does not have the electric power support

This device, comprise housing 1, admission port 2, exhausr port a3, also comprise air chamber A4, air chamber B5, air chamber C6, air chamber D7, air chamber E25, air chamber F26, valve port a8, valve port b9, path a10, path b11, path c12, path d13, path e14, spring a15, spring b16, spring c17, valve rod 18, mass 19, lamina membranacea 21, spool a22, spool b23, exhausr port b24; Housing 1 is made for cast aluminium, is fixed on the car body of train each one of the front and back in every joint compartment; Housing 1 comprises upper shell 31, lower house 30, loam cake 27 and lower cover 28; Loam cake 27 is arranged on upper shell 31 crowns center, and diameter is 40 millimeters, with 1 airtight connection of usefulness spiral shell button of housing; Lower cover 28 is arranged on the bottom of lower house 30, and diameter is 50 millimeters, links with lower house 30 spiral shells to connect; The top of lower house 30 is connected with the bottom of upper shell 31 is airtight; Admission port 2 is arranged on housing 1 top, 30 millimeters of diameters, and an end is communicated with the train pipe of train, and the other end is communicated with air chamber A4; Exhausr port a3,24 millimeters of diameters are arranged on the housing 1, and an end is communicated with air chamber B5, and the other end is communicated with atmosphere; Air chamber A4 and air chamber B5 are arranged on the top in the housing 1; The middle part of housing 1 is set to cavity, lamina membranacea 21 is arranged in the cavity, lamina membranacea 21 1 ends are fixed on the inwall of cavity, and the other end is fixed on around the bottom sides of valve rod 18, cavity are divided into two air chambers that do not link, the top is air chamber C6, diameter is 85 millimeters, and height arrives 12 millimeters of lamina membranacea 21 junctions for the top, and that following is air chamber D7,90 millimeters of diameters are high 30 millimeters; Valve rod 18 is provided with valve rod base 20, and lamina membranacea 21 is fixed on around the side of valve rod base 20, and valve rod 18 is fixed on the valve rod base 20; Valve rod 18 is a cylinder, and 60 millimeters of length, 8 millimeters of diameters pass air chamber B5 and air chamber C6, are connected with 2 air chambers is airtight; Establish boss in air chamber D7, its aperture is 70 millimeters, valve rod base 20 thick 5 millimeters, and 80 millimeters of diameters ride over when not working on the boss, and its upper surface is apart from 7 millimeters of the lower surfaces of air chamber C6; Air chamber E25 is arranged on the below of air chamber D7, and air chamber E25 is the bottom of air chamber D7 and the cavity that top surrounded of lower house b30, and 95 millimeters of diameters are high 26 millimeters; Air chamber F26 is arranged on the bottom in the housing 1, in the lower house 30, and below air chamber D7,90 millimeters of internal diameters, high 100 millimeters gas are below air chamber E25; Air chamber A4 is communicated with by path a10 with air chamber C6; Air chamber C6 is communicated with by path c12 with air chamber E25; Air chamber A4 is communicated with by path b11 with air chamber D7; Mass 19 is the corrosion-resistant steel cylinder, is arranged in the air chamber F26, and its external diameter equals air chamber F26 internal diameter, and is high 25 millimeters, and air chamber F26 is divided into two parts up and down; Air chamber E25 is communicated with by valve port b9 with the top of air chamber F26; Two parts up and down of air chamber F26 are communicated with by path d13; Exhausr port b24 is arranged on the

lower cover

28,8 millimeters of diameters, and an end is communicated with atmosphere, and the other end is communicated with the bottom of air chamber F26 by path e14; Air chamber A4 is communicated with by valve port a8 with air chamber B5,24 millimeters of valve port a8 diameters; Air chamber E25 is communicated with by valve port b9 with air chamber F26,8 millimeters of valve port b9 diameters; Spool a22 is arranged on the valve port a8, and a8 matches with valve port; Spring a15 is arranged in the housing 1, and an end is fixed on the bottom of loam cake 27, and the other end is fixed on the spool a22, and spool a22 is pressed on the valve port a8; Spool b23 is arranged in the epicoele of air chamber F26, is fixed on the mass 19, and b9 matches with valve port; Spring c17 is arranged in the cavity of resorption of air chamber F26, and an end is fixed on the bottom of the cavity of resorption of air chamber F26, and the other end is fixed on the bottom of mass 19, and spool b23 is withstood on the valve port b9; Valve rod 18 passes air chamber B5 and air chamber C6, and the one end is fixedly connected on the valve rod base 20, and the other end is facing to spool a22; Spring b16 is arranged in the air chamber C6, and an end is fixed on the top of air chamber C6, and the other end is fixed on the valve rod base 20, and valve rod 18 is pressed down; The top of valve rod 18 is to 1 millimeter of the distance of spool a22 bottom; Anti-oxidation processing is all passed through in the aperture of path a10, path b11, path c12, path d13, path e14, installs anti-oxidation copper sheathing additional, and the aperture is 1 millimeter.

The principle of work of this derail automatic stopping device:

During derail, the acceleration/accel of its generation makes mass produce downward application force, when this application force is enough to overcome the application force that spring c makes progress-be thresholding-5g (meter per second that acceleration/accel surpasses setting ²) time, valve port b opens, the pressure air of air chamber C is rapidly through valve port b, path d, path e at this moment, from exhausr port c exhaust to atmosphere, cause air chamber D pressure air to be higher than air chamber Cc pressure air, thereby promote valve rod, open valve port a, make air chamber A (or train pipe) pressure air rapidly through air chamber B, exhausr port b exhaust to atmosphere, thereby reach the purpose that makes train produce emergency braking rapidly.

Air chamber C adds air chamber E volume sum greater than air chamber D volume, is under normal condition, prevents the air chamber accidental gas leakage, and air chamber C air pressure reduces too fast, produces unsteady state, makes whole device unstable; The aperture of path a, path b, path c, path d, path e is 8 millimeters realizations that guaranteed the momentary status of device in aperture of 1 millimeter and valve port b; The aperture of 24 millimeters in the aperture of valve port a and exhausr port a has guaranteed device venting speed for 24 millimeters; The aperture of path a when making snap action, guarantees that air chamber C air pressure is lower than the air pressure of air chamber D smaller or equal to the aperture of path d; Stem bottom to the distance at the top of air chamber C greater than the top of valve rod to 6 millimeters of the distances of spool a bottom, to guarantee promptly to open valve plug.

Technique scheme of the present invention compared with prior art has the following advantages: accurate to the derail status detection, detected state is stable, and response time was smaller or equal to 3 seconds, and the venting of train, braking procedure weak point reach the requirement of stopping immediately after the derail.

Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.

Claims

1, a kind of railway carriage derailing detector, comprise housing (1), admission port (2), exhausr port a (3) is characterized in that: this device also comprises air chamber A (4), air chamber B (5), air chamber C (6), air chamber D (7), air chamber E (25), air chamber F (26), valve port a (8), valve port b (9), path a (10), path b (11), path c (12), path d (13), path e (14), spring a (15), spring b (16), spring c (17), valve rod (18), mass (19), lamina membranacea (21), spool a (22), spool b (23), exhausr port b (24); Described housing (1) is fixed on the car body of train; Described admission port (2) is arranged on housing (1) top, and an end is communicated with the train pipe of train, and the other end is communicated with air chamber A (4); Described exhausr port a (3) is arranged on the housing (1), and an end is communicated with air chamber B (5), and the other end is communicated with atmosphere; Described air chamber A (4) and air chamber B (5) are arranged on the interior top of housing (1); The middle part of described housing (1) is set to cavity, described lamina membranacea (21) is arranged in the cavity, lamina membranacea (21) one ends are fixed on the inwall of cavity, the other end is fixed on around the bottom sides of valve rod (18), cavity is divided into two air chambers that do not link, the top is air chamber C (6), and following is air chamber D (7); Described air chamber E (25) is arranged on the below of air chamber D (7); Described air chamber F (26) is arranged on the bottom in the housing (1), the below in air chamber E (25); Described air chamber A (4) is communicated with by path a (10) with air chamber C (6); Described air chamber C (6) is communicated with by path c (12) with air chamber E (25); Described air chamber A (4) is communicated with by path b (11) with air chamber D (7); Described mass (19) is arranged in the air chamber F (26), and its outer wall and air chamber F (26) inwall match, and air chamber F (26) is divided into two parts up and down; Described air chamber E (25) is communicated with by valve port b (9) with the top of air chamber F (26); Two parts up and down of described air chamber F (26) are communicated with by path d (13); Described exhausr port b (24) is arranged on the bottom of housing (1), and an end is communicated with atmosphere, and the other end is communicated with the bottom of air chamber F (26) by path e (14); Described air chamber A (4) is communicated with by valve port a (8) with air chamber B (5); Described air chamber E (25) is communicated with by valve port b (9) with air chamber F (26); Described spool a (22) is arranged on the valve port a (8), matches with valve port a (8); Described spring a (15) is arranged in the housing (1), and an end is fixed on the top of housing (1), and the other end is fixed on the spool a (22), and spool a (22) is pressed on the valve port a (8); Described spool b (23) is arranged in the epicoele of air chamber F (26), is fixed on the mass (19), matches with valve port b (9); Described spring c (17) is arranged in the cavity of resorption of air chamber F (26), and an end is fixed on the bottom of the cavity of resorption of air chamber F (26), and the other end is fixed on the bottom of mass (19), and spool b (23) is withstood on the valve port b (9); Described spring b (16) is arranged in the air chamber C (6), and an end is fixed on the top of air chamber C (6), and the other end is fixed on the bottom of valve rod (18), and valve rod (18) is pressed down; Described valve rod (18) passes air chamber B (5) and air chamber C (6), and the one end is fixedly connected on the lamina membranacea (21), and the other end is facing to spool a (22).

2, railway carriage derailing detector according to claim 1 is characterized in that: described air chamber C (6) adds air chamber E (25) volume sum greater than air chamber D (7) volume.

3, railway carriage derailing detector according to claim 1 is characterized in that: the aperture of described path a (10), path b (11), path c (12), path d (13), path e (14) is more than or equal to 0.5 millimeter, smaller or equal to 2.5 millimeters; The aperture of described valve port a (8) is more than or equal to 20 millimeters; The aperture of valve port b (9) is more than or equal to 2 millimeters; The aperture of described exhausr port a (3) is more than or equal to 20 millimeters.

4, railway carriage derailing detector according to claim 1 is characterized in that: the aperture of described path a (10) is smaller or equal to the aperture of path d (13).

5, railway carriage derailing detector according to claim 1 is characterized in that: the distance of spool a (22) bottom is arrived more than 1 millimeter to the distance at the top of air chamber C (6) greater than the top of valve rod (18) in described valve rod (18) bottom.

6, railway carriage derailing detector according to claim 1 is characterized in that: described housing (1) comprises upper shell (31), lower house (30), loam cake (27) and lower cover (28); Described loam cake (27) is arranged on upper shell (31) crown center, with airtight connection of upper shell (31); Described lower cover (28) is arranged on the bottom of lower house (30), is connected with lower house (30); The airtight connection of bottom of the top of described lower house (30) and upper shell (31); Described air chamber E (25) is the bottom of air chamber D (7), the bottom of upper shell (31) and the cavity that top surrounded of lower house (30), or is the cavity that top surrounded of the bottom of air chamber D (7) and lower house (30); The end of described spring a (15) is fixed on the bottom of loam cake (27); Described exhausr port b (24) is arranged on the lower cover (28).

7, railway carriage derailing detector according to claim 1 is characterized in that: described valve rod (18) is provided with valve rod base (20); Described lamina membranacea (21) is fixed on around the side of valve rod base (20); Described valve rod (18) is fixed on the valve rod base (20); The end of described spring b (16) is fixed on the valve rod base (20).