Measurement matching device and measurement method for opening size of vehicle retarder brake rail

Abstract

The invention discloses a vehicle retarder brake rail opening size measurement matching device and a measurement method. The device comprises two device units which are symmetrically distributed left and right. A stock rail is arranged in a gap between the two device units; the stock rail is positioned between the two brake rails; the two device units are located below the two brake rails correspondingly. Each device unit comprises a base assembly, a box body assembly and a rotating mechanism assembly; the box body assembly is arranged at the top of the base assembly; the base assembly is used for providing supporting force for the box body assembly; the rotating mechanism assembly is arranged on the front side of the box body assembly; the rotating mechanisms in the two device units are used for enabling contact plates on the rotating mechanisms to abut against and make contact with the opposite sides of the two braking rails through rotation of motors in the rotating mechanisms. According to the invention, the measuring matching device is arranged below the brake rails, so that a worker can accurately and reliably obtain the distance (opening size) between the two brake rails in the speed reducer.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, and in particular to a matching device and a method for measuring the opening size of a brake rail of a vehicle reducer. Background Art

[0002] Rail transit is an important form of transportation. The diversion of freight depends on the operation of hump yards, and vehicle reducers are one of the core equipment of hump yards. With the rapid development of rail transit in my country, the large-scale construction of hump yards, the continuous improvement of freight transport capacity and volume, the requirements for vehicle reducers are also getting higher and higher.

[0003] A vehicle reducer is a device that relies on two brake rails to clamp the two sides of the wheels traveling on the base rail and achieves vehicle deceleration through friction. However, long-term friction and impact will cause the functional performance of the vehicle reducer to decline. After the reducer has been used for a period of time, the opening distance between the two adjacent brake rails will become larger, so that when the vehicle passes through the reducer, the braking force of the reducer on the vehicle will become smaller. In order to ensure the normal functional performance of the vehicle reducer and to ensure the braking force of the reducer, the shortest distance between the two brake rails of the vehicle reducer (that is, the opening size, that is, the minimum distance between the arc surfaces of the rail heads of the two brake rails, which is the straight-line distance between the two brake rails on both sides of the base rail) needs to be inspected regularly.

[0004] At present, the conventional detection method relies on manual detection, where workers in the railway electrical section inspect and detect along the track. This method not only cannot accurately and reliably detect the shortest distance between the two brake rails (i.e., the opening size), but also is very inconvenient for the workers, with high work intensity and low work efficiency. It is easy to miss or misdetect, and cannot effectively ensure the safe operation of the train.

[0005] See also Figure 1 As shown, below the gap between the two brake rails 901 of the reducer is the basic rail 902; for the two brake rails 901, the rail heads of the brake rails are initially arc surfaces, which become flat surfaces after long-term use and wear. The two brake rails 901 are arranged relatively, and the shortest distance L (i.e., the opening size) between the two brake rails 901 refers to the minimum distance between the rail head surfaces of the two brake rails. The wheels of the freight vehicle roll on the rail head at the top of the basic rail, and the reducer relies on the squeezing friction between the two brake rails and the wheels to slow down the vehicle, so the detection of the shortest distance L (i.e., the opening size) between the two brake rails on both sides of the basic rail is more important.

[0006] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Summary of the invention

[0007] The purpose of the present invention is to provide a measuring device and a measuring method for the opening size of a brake rail of a vehicle reducer in view of the technical defects in the prior art.

[0008] To this end, the present invention provides a matching device for measuring the opening size of a brake rail of a vehicle reducer, which is characterized by comprising two device units symmetrically distributed on the left and right;

[0009] A stock rail is provided in the gap between the two device units;

[0010] The stock rail is located between two longitudinally arranged brake rails;

[0011] Two device units are respectively located under the two brake rails;

[0012] Each device unit includes a base component, a box body component and a rotating mechanism component;

[0013] The top of the base component is provided with a box body component;

[0014] The base component is used to provide support for the box body component;

[0015] The front side of the box body is provided with a rotating mechanism;

[0016] The rotating mechanisms in the two device units are used to make the contact plates thereon tightly contact with the opposite sides of the two brake rails through the rotation of the motors therein.

[0017] In addition, the present invention provides a method for measuring the opening size of a brake rail based on the aforementioned measuring device for measuring the opening size of a brake rail of a vehicle reducer, which comprises the following steps:

[0018] Step S1, driving the first motors in the two device units on the left to rotate counterclockwise, and driving the first motors in the two device units on the right to rotate clockwise, so that the inner rocker arms in the two device units rotate in opposite directions, and the contact plates in the two device units rotate together with the inner rocker arms;

[0019] Step S2, when the contact plates in the two device units come into contact with the opposite sides of the two brake rails, the angle values ​​on the two angle encoders on the two device units are recorded;

[0020] Step S3, obtaining the opening size value L between the two brake rails according to the angle values ​​on the two angle encoders on the two device units and a preset opening size calculation formula.

[0021] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a measuring device and a measuring method for the opening size of the brake rail of a vehicle reducer. The measuring device is scientifically designed. By installing the measuring device under the brake rail, based on the measurement data of the measuring device, the staff can further accurately and reliably obtain the distance between the two brake rails in the reducer (i.e., the opening size), which has great practical significance.

[0022] In addition, the device of the present invention can be installed under every two brake rails, and the detection data of the angle encoder can be sent to a distant data management platform in an online remote transmission mode, without the need for workers in the railway electrical section to check along the track, which can reduce the labor intensity of the staff, improve work efficiency, and effectively avoid the problems of missed detection and false detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the positional relationship between the two brake rails and the basic rails of the vehicle reducer;

[0024] Figure 2 A structural block diagram of a device unit in a matching device for measuring the opening size of a brake rail of a vehicle reducer provided by the present invention;

[0025] Figure 3 A front view of a device unit in a matching device for measuring the opening size of a brake rail of a vehicle reducer provided by the present invention;

[0026] Figure 4 A top view of a device unit in a matching device for measuring the opening size of a brake rail of a vehicle reducer provided by the present invention (the box cover is not drawn in this figure);

[0027] Figure 5 A schematic diagram showing the installation state of the matching device for measuring the opening size of the brake rail of a vehicle reducer provided by the present invention and the positional relationship between the brake rail and the base rail when the distance between the two brake rails (i.e., the opening size) needs to be measured;

[0028] Figure 6 A structural diagram for obtaining the size of the brake rail opening;

[0029] Figure 7 A schematic diagram of a falling trajectory composed of a rotating mechanism of a device unit in a matching device for measuring the opening size of a brake rail of a vehicle reducer provided by the present invention;

[0030] Figure 8It is a schematic diagram of the installation state of the matching device for measuring the opening size of the brake rail of a vehicle reducer provided by the present invention and the positional relationship between the brake rail and the base rail when there is no need to measure the distance between the two brake rails (i.e. the opening size);

[0031] Fig. 9 A schematic diagram of the structure of an outer rocker arm of a device unit in a matching device for measuring the opening size of a brake rail of a vehicle reducer provided by the present invention;

[0032] Fig.10 A schematic diagram of the structure of an inner rocker arm of a device unit in a matching device for measuring the opening size of a brake rail of a vehicle reducer provided by the present invention;

[0033] In the figure, 1-base composition; 2-box composition; 3-rotating mechanism composition;

[0034] 101-base plate; 102-support rod; 103-first lower side fastener; 104-first upper side fastener;

[0035] 201-box body; 202-box cover; 203-first bearing seat; 204-second fastener; 205-third fastener;

[0036] 206- fourth fastener; 207- first support seat; 208 cable socket; 209- fifth fastener; 210- second support seat;

[0037] 301-first motor; 302-angle encoder; 303-coupling; 304-outer rocker arm; 305-inner rocker arm;

[0038] 306 - contact plate; 307 - second bearing seat; 308 - sixth fastener; 309 - seventh fastener; 310 - second motor. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] Example 1

[0044] See also Figures 1 to 10 , the present invention provides a matching device for measuring the opening size of a brake rail of a vehicle reducer, comprising: two device units symmetrically distributed on the left and right;

[0045] In the gap between the two device units, a stock rail 902 (e.g., a steel rail) is provided;

[0046] A base rail 902 located between two longitudinally distributed brake rails 901;

[0047] Two device units are respectively located below the two brake rails 901;

[0048] It should be noted that a brake rail 901 is provided on both sides of each basic rail 902; two basic rails 902 constitute a track section of a railway vehicle; and two train wheels at the bottom of a railway vehicle (such as a freight or passenger vehicle) pass over the two basic rails 902.

[0049] Each device unit includes a base component 1, a box body component 2 and a rotating mechanism component 3;

[0050] The top of the base component 1 is provided with a box body component 2;

[0051] The base component 1 is used to provide support for the box body component 2;

[0052] The front side of the box body component 2 is provided with a rotating mechanism component 3;

[0053] The rotating mechanism component 3 in the two device units is used to make the contact plates thereon tightly contact with the opposite sides of the two brake rails 901 through the rotation of the motor therein.

[0054] In the present invention, in a specific implementation, for each device unit, the base component 1 includes a base plate 101 and a support rod 102;

[0055] Two support rods 102 are arranged at the left and right ends of the top of the base plate 101 and are spaced apart from each other.

[0056] The upper portion of the support rod 102 is plugged into the box body 2.

[0057] In a specific implementation, the base plate 101 is provided with a base plate vertical through hole at a position corresponding to each support rod 102;

[0058] After the support rod 102 passes through the vertical through hole of the base plate from bottom to top, it is fixed on the base plate 101 through two first lower fasteners 103 (such as fastening nuts).

[0059] Furthermore, the two first lower fasteners 103 are threadedly connected to the external threads at the lower end of the support rod 10;

[0060] The base plate 101 is located between the two first lower fasteners 103 , and its upper and lower sides are in tight contact with the two first lower fasteners 103 .

[0061] The base plate 101 has a downwardly-opening, upwardly-concave groove therein for accommodating a first lower fastener 103 located below the base plate 101 .

[0062] In specific implementation, the upper part of the support rod 102 is plugged into the box body to form a two-phase connection, and the specific structural design is as follows:

[0063] The bottom plate 2010 of the box body 201 of the box body component 2 is provided with a box bottom vertical through hole at a position corresponding to the support rod 102;

[0064] After the upper portion of the support rod 102 passes through the vertical through hole at the bottom of the box from bottom to top, it is fixed on the bottom plate 2010 of the box body 201 of the box body component 2 through two first upper fasteners 104 (such as fastening nuts).

[0065] Furthermore, the two first upper fasteners 104 are threadedly connected to the external threads on the upper end of the support rod 10;

[0066] The bottom plate 2010 of the box body 201 is located between the two first upper fasteners 104 , and its upper and lower sides are in tight contact with the two first upper fasteners 104 .

[0067] In the present invention, in a specific implementation, for each device unit, the box body component 2 includes: a box body 201, a box cover 202, a first bearing seat 203, a second fastener 204, a third fastener 205, a fourth fastener 206, a first support seat 207, a cable socket 208 and a fifth fastener 209;

[0068] The front panel of the hollow box body 201 is provided with two first bearing seats 203 through openings;

[0069] The two first bearing seats 203 are symmetrically distributed on the left and right sides;

[0070] On the rear side panel of the box body 201, two cable sockets 208 are provided in openings;

[0071] The inner cavity of the box body 201 is provided with a first support seat 207;

[0072] The first support base 207 is fixedly disposed on the bottom plate 2010 of the box body 201;

[0073] In a specific implementation, the first bearing seat 203 is fixed to the front side panel of the box body 201 by using a plurality of (e.g., four) third fasteners 205 (e.g., fastening screws) distributed at equal intervals;

[0074] In a specific implementation, the first support base 207 is fixed on the bottom plate 2010 of the box body 201 by using a plurality of fourth fasteners 206 (such as fastening screws);

[0075] In a specific implementation, the two cable sockets 208 are fixed to the rear side panel of the box body 201 by using a fifth fastener 209 (such as a fastening screw);

[0076] One of the cable sockets 208 is connected to the first motor 301 and the second motor 310 through connecting cables, respectively, and is used to provide working power to the two motors, and transmit the rotation control signal (start synchronous rotation signal, stop rotation signal, etc.) sent by an external control device (such as an industrial control computer) to the two motors;

[0077] One end of the other cable socket is connected to the angle encoder 302 via a connecting cable, and the other end is connected to an external control device (such as an industrial computer) for transmitting the current angle value of the angle encoder to the external control device (such as an industrial computer).

[0078] In specific implementation, a box cover 202 is provided on the top of the box body 201;

[0079] Furthermore, the left and right sides of the box cover 202 are respectively fixed to the left and right side walls of the box body 201 using two second fasteners 204 (such as fastening screws) spaced apart from each other in the front and back directions.

[0080] In a specific implementation, the bottom of the box cover 202 is surrounded by a circle of cover convex edges protruding vertically downward;

[0081] A sealing strip is pasted on the inner side of the convex edge of the cover, so that the entire box body is waterproof and dustproof.

[0082] In the present invention, in specific implementation, for each device unit, the rotating mechanism is composed of 3, including: a first motor 301, a second motor 310, an angle encoder 302, a coupling 303, an outer rocker arm 304, an inner rocker arm 305, a contact plate 306, a second bearing seat 307, a sixth fastener 308 and a seventh fastener 309;

[0083] The first motor 301 and the second motor 310 are respectively fixed to the top of the first support seat 207 in the box body component 2, one end close to the base rail 902 and one end away from the base rail 902;

[0084] The first motor 301 is a dual-output shaft motor, the front output shaft of which is connected to the rear side of the second lower longitudinal shaft 3053 of the inner rocker arm 305 through a coupling 303, and the rear output shaft of which is connected to the rotating shaft of an angle encoder 302 through a coupling 303;

[0085] The second motor 310 is connected to the rear side of the first lower longitudinal shaft 3043 of an outer rocker arm 304 through a coupling 303;

[0086] The middle section of the first lower end longitudinal axis 3043 of the outer rocker arm 304 and the middle section of the second lower end longitudinal axis 3053 of the inner rocker arm 305 are respectively connected to the inner ring of the bearing installed on the first bearing seat 203 in the box body component 2;

[0087] Directly above the outer rocker arm 304 and the inner rocker arm 305, a bottom support plate 3061 of the contact plate 306 is provided;

[0088] The contact plate 306 includes a bottom support plate 3061 and a vertical clamping plate 3062;

[0089] A vertical clamping plate 3062 distributed vertically is provided at the top of one end of the bottom support plate 3061 of the contact plate 306;

[0090] A second bearing seat 307 is disposed at the left and right ends of the bottom surface of the bottom support plate 3061 of the contact plate 306;

[0091] The inner rings of the bearings mounted on the two second bearing seats 307 are respectively connected to the first upper longitudinal axis 3041 of the outer rocker arm 304 and the second upper longitudinal axis 3051 of the inner rocker arm 305;

[0092] In specific implementation, the installation position of the second bearing seat 307 connected to the second upper end longitudinal axis 3051 of the inner rocker arm 305 is located behind the installation position of the second bearing seat 307 connected to the first upper end longitudinal axis 3041 of the outer rocker arm 304;

[0093] The second upper longitudinal axis 3051 of the inner rocker arm 305 is inserted from the back to the front into the inner ring of the bearing mounted on the corresponding second bearing seat 307;

[0094] The first upper end longitudinal axis 3041 of the outer rocker arm 304 is inserted from front to back into the inner ring of the bearing installed on the corresponding second bearing seat 307.

[0095] In specific implementation, the second bearing seat 307 is installed under the contact plate 306 using the seventh fastener 309 (such as a fastening screw), and is connected to the axis on the other side of the outer rocker arm 304 and the inner rocker arm 305 (that is, the first upper end longitudinal axis of the outer rocker arm 304 and the second upper end longitudinal axis of the inner rocker arm 305).

[0096] In specific implementation, a first mounting plate 2070 is vertically arranged on the top front side of the first supporting seat 207 in the box body component 2;

[0097] The first motor 301 and the second motor 310 are respectively fixed to the end of the first mounting plate 2070 close to the basic rail 902 and the end away from the basic rail 902 by the sixth fastener 308 (such as a fastening screw) (the first mounting plate has corresponding screw holes and through holes for the output shafts of the first motor 301 and the second motor 310 to pass through).

[0098] In specific implementation, the angle encoder 302 is fixedly arranged on the second support seat 210;

[0099] The second support base 210 is fixedly arranged on the bottom plate 2010 of the box body 201 through four fourth fasteners 206;

[0100] A second mounting plate 2100 is vertically disposed on the top front side of the second support base 210;

[0101] The angle encoder 302 is fixed to the second mounting plate 2100 (the second mounting plate has corresponding screw holes and a through hole for the rotation shaft of the angle encoder 302 to pass through) by a sixth fastener 308 (such as a fastening screw).

[0102] Further, the outer rocker arm 304 includes a first upper end longitudinal axis 3041, a first main body vertical axis 3042 and a first lower end longitudinal axis 3043;

[0103] A first upper longitudinal axis 3041 and a first lower longitudinal axis 3043 are respectively vertically connected to the upper and lower ends of the rear side of the first main body vertical axis 3042;

[0104] The central axis of the first upper end longitudinal axis is perpendicular to the central axis of the first main body vertical axis;

[0105] The central axis of the longitudinal axis of the first lower end is perpendicular to the central axis of the vertical axis of the first body;

[0106] Further, the inner rocker arm 305 includes a second upper end longitudinal axis 3051, a second main body vertical axis 3052 and a second lower end longitudinal axis 3053;

[0107] The second upper longitudinal axis 3051 and the second lower longitudinal axis 3053 are respectively vertically connected to the rear lower end and the front upper end of the second main body vertical axis 3052;

[0108] The central axis of the second upper end longitudinal axis is perpendicular to the central axis of the second main body vertical axis;

[0109] The central axis of the second lower end longitudinal axis is perpendicular to the central axis of the second main body vertical axis.

[0110] In the present invention, in a specific implementation, the second main body vertical axis 3052 in the inner rocker arm 305 and the first main body vertical axis 3042 in the outer rocker arm 304 are arranged parallel to each other;

[0111] In the present invention, in a specific implementation, the two device units have two box bodies 2, which are respectively located below the two brake rails 901.

[0112] In the present invention, in a specific implementation, the vertical clamping plate 3062 of the contact plate 306 provided in the two device units is located between the two brake rails 901;

[0113] In the present invention, in a specific implementation, the contact plate 306 is in an L-shape;

[0114] The vertical clamping plate 3062 of the contact plate 306 provided in each device unit is located between the brake rail 901 and the adjacent base rail 902 .

[0115] In a specific implementation, the bottom support plate 3061 of the contact plate 306 is horizontally distributed.

[0116] In order to more clearly understand the technical solution of the present invention, the working principle of the present invention is described below:

[0117] See also Figure 5 As shown, first, the device of the present invention is installed below two brake rails 901;

[0118] Then, when no vehicle is passing, the first motor 301 is used to control the inner rocker arm 305 and the second motor 310 is used to control the outer rocker arm 304 to rotate synchronously (at the same speed), and the angle encoder 302 continuously obtains the angle value of the inner rocker arm 305;

[0119] Among them, the rotation directions of the inner rocker arms 305 on the two device units are opposite, and they rotate relative to each other. For example, if the inner rocker arm 305 on the left device unit rotates counterclockwise, then the inner rocker arm 305 on the right device unit rotates clockwise, so that the contact plates 306 (specifically the vertical clamping plates 3062) of the rotating mechanism components 3 in the two device units are in tight contact with the opposite sides of the two brake rails 901.

[0120] Then, when the contact plates 306 connected to the inner rocker arms 305 on the two device units rotate, and the vertical clamping plates 3062 on the two contact plates 306 touch the opposite sides of the two brake rails 901, the acquired angle values ​​of the two angle encoders 302 on the two device units stop changing, and the angle values ​​at this moment are recorded, and at this time, the two first motors 301 on the two device units stop rotating. According to the recorded angle values, the current opening value can be calculated.

[0121] Among them, the preset opening size calculation formula is as follows:

[0122] L = MN·(cos∠α1+cos∠α2)-2t; Formula (1);

[0123] Wherein, L is the opening size value between the two brake rails 901;

[0124] N is the vertical length of the inner rocker arm 305 (specifically, the distance between the center axis of the second lower longitudinal axis 3053 and the center axis of the second upper longitudinal axis 3051, and also the distance between the center axes of the first bearing seat 203 and the second bearing seat 507 connected through the inner rocker arm 305), which is equal to the vertical length of the outer rocker arm 304 (specifically, the distance between the center axis of the first lower longitudinal axis 3043 and the center axis of the first upper longitudinal axis 3041, and also the distance between the center axes of the first bearing seat 203 and the second bearing seat 507 connected through the outer rocker arm 304);

[0125] M is the distance between the central axes of the longitudinal output shafts of the two first motors 301 of the two device units;

[0126] When the contact plates 306 (specifically the vertical clamping plates 3062) of the rotating mechanism components 3 in the two device units are in close contact with the opposite sides of the two brake rails 901, the angle value monitored by the angle encoder 302 on the left device unit is α1;

[0127] When the contact plates 306 (specifically the vertical clamping plates 3062) of the rotating mechanism components 3 in the two device units are in close contact with the opposite sides of the two brake rails 901, the angle value monitored by the angle encoder 302 on the device unit on the right is α2;

[0128] The fixed value t is equal to the vertical distance between the center point of a second bearing seat 307 close to the base rail 902 and the side of the adjacent vertical clamping plate 3062 close to the brake rail (ie, the outer plane).

[0129] Example 2

[0130] In the present invention, a vehicle reducer brake rail opening size measuring device provided by the present invention also includes an industrial control computer;

[0131] The industrial control computer is connected to the two angle encoders 302 on the two device units (can be wirelessly connected) to collect the angle values ​​monitored by the two angle encoders 302, and then calculate the opening size value L between the two brake rails 901 according to a preset opening size calculation formula.

[0132] Example 3

[0133] In the present invention, a vehicle reducer brake rail opening size measuring device provided by the present invention also includes an industrial control computer;

[0134] The industrial control computer is connected to the two angle encoders 302 on the two device units (can be wirelessly connected) to collect the angle values ​​monitored by the two angle encoders 302 and display them on a matching display screen. At this time, the staff can calculate the opening size L between the two brake rails 901 according to the above calculation formula (1) and the two angle values ​​displayed on the display screen, as well as the pre-known M and N.

[0135] Based on the above-mentioned vehicle decelerator brake rail opening size measuring device provided by the present invention, the present invention also provides a brake rail opening size measuring method based on the vehicle decelerator brake rail opening size measuring device, which comprises the following steps:

[0136] Step S1, driving the first motors 301 in the two device units on the left to rotate counterclockwise, and driving the first motors 301 in the two device units on the right to rotate clockwise, so that the inner rocker arms 305 in the two device units rotate in opposite directions, and the contact plates 306 in the two device units rotate together with the inner rocker arms 305;

[0137] Step S2, when the contact plates 306 (specifically the vertical clamping plates 3062) in the two device units come into contact with the opposite sides of the two brake rails 901, the angle values ​​on the two angle encoders 302 on the two device units are recorded;

[0138] Step S3, obtaining the opening size value L (ie, equal to the shortest distance t) between the two brake rails 901 according to the angle values ​​on the two angle encoders 302 on the two device units and a preset opening size calculation formula.

[0139] In step S3, in specific implementation, the preset opening size calculation formula is as follows:

[0140] L = MN·(cos∠α1+cos∠α2)-2t; Formula (1);

[0141] Wherein, L is the opening size value between the two brake rails 901;

[0142] N is the vertical length of the inner rocker arm 305 (specifically, the distance between the center axis of the second lower longitudinal axis 3053 and the center axis of the second upper longitudinal axis 3051, and also the distance between the center axes of the first bearing seat 203 and the second bearing seat 507 connected through the inner rocker arm 305), which is equal to the vertical length of the outer rocker arm 304 (specifically, the distance between the center axis of the first lower longitudinal axis 3043 and the center axis of the first upper longitudinal axis 3041, and also the distance between the center axes of the first bearing seat 203 and the second bearing seat 507 connected through the outer rocker arm 304);

[0143] M is the distance between the central axes of the longitudinal output shafts of the two first motors 301 of the two device units, which is also equal to the distance between the central points of the two first bearing seats 203 close to the base rail 902;

[0144] When the contact plates 306 (specifically the vertical clamping plates 3062) of the rotating mechanism components 3 in the two device units are in close contact with the opposite sides of the two brake rails 901, the angle value monitored by the angle encoder 302 on the left device unit is α1;

[0145] When the contact plates 306 (specifically the vertical clamping plates 3062) of the rotating mechanism components 3 in the two device units are in tight contact with the opposite sides of the two brake rails 901, the angle value monitored by the angle encoder 302 on the right device unit is α2.

[0146] In the present invention, when the contact plate 306 (specifically the vertical clamping plate 3062) of the rotating mechanism component 3 in the two device units is in close contact with the opposite side of the two brake rails 901, the reasoning and acquisition process of the above formula (1) is specifically described as follows:

[0147] Since the vertical length of the inner rocker arm 305 is equal to the vertical length of the outer rocker arm 304, the inner rocker arm 305 and the outer rocker arm 304 are of equal length, so the two rockers on the same side (i.e., the inner rocker arm 305 and the outer rocker arm 304) are always parallel, and the contact surface of the vertical clamping plate 3062 of the L-shaped contact plate 306 (i.e., the contact surface with the brake rail 901) is always vertically upward. Therefore, the device of the present invention can be simplified as follows: Figure 6 The structural schematic diagram shown;

[0148] See also Figure 6 As shown, A1D1, B1C1, A2D2, and B2C2 are all rocker arms of the device;

[0149] A1, A2, B1 and B2 are the center points of the four first bearing seats 203 respectively, and A1, A2, B1 and B2 are on the same straight line parallel to the ground;

[0150] C1, C2, D1, and D2 are respectively the center points of the four second bearing seats 307;

[0151] H1 and H2 are intersection points between two vertical lines and the bottom support plate 3061 of the contact plate 306, and the center points of the two second bearing seats 307 close to the base rail 902 are located on the two vertical lines respectively;

[0152] E1 and E2 are points on one side (i.e., the outer side) of the two vertical clamping plates 3062 close to the brake rail, and the line segment E1E2 is parallel to the ground;

[0153] F1 and F2 are the projection points of E1 and E2 on the straight line B1B2 respectively;

[0154] G1 and G2 are the projection points of H1 and H2 on the straight line E1F1 and the straight line E2F2 respectively;

[0155] I1 and I2 are the projection points of D1 on D2 on the straight line B1B2;

[0156] H1, D1, and I1 are on the same vertical line, and H2, D2, and I2 are on the same vertical line;

[0157] The lengths of line segments H1G1 and H2G2 are fixed values ​​t;

[0158] The lengths of the line segment H1G1 and the line segment H2G2 are equal, and are respectively equal to the vertical distances between the center points of the two second bearing seats 307 close to the base rail 902 and the sides of the two adjacent vertical clamping plates 3062 close to the brake rail (i.e., the outer plane);

[0159] Figure 6 , A1D1 is a vertical length line segment of the inner rocker arm 305 in the device unit on the left (specifically, a connecting line segment between the central axis of the second lower end longitudinal axis and the central axis of the second upper end longitudinal axis, i.e., a line connecting the central point of the first bearing seat 203 for docking the inner rocker arm 305 and the central point of the corresponding second bearing seat 307);

[0160] B1C1 is a vertical length line segment of the outer rocker arm 304 in the device unit on the left (specifically, a connecting line segment between the central axis of the first lower end longitudinal axis and the central axis of the first upper end longitudinal axis, i.e., a connecting line between the center point of the first bearing seat 203 for docking the outer rocker arm 304 and the center point of the corresponding second bearing seat 307);

[0161] A2D2 is a vertical length line segment of the inner rocker arm 305 in the device unit on the right (specifically, a connecting line segment between the central axis of the second lower longitudinal axis and the central axis of the second upper longitudinal axis, i.e., a line connecting the center point of the first bearing seat 203 for docking the inner rocker arm 305 and the center point of the corresponding second bearing seat 307);

[0162] B2C2 is a vertical length line segment of the outer rocker arm 304 in the device unit on the right (specifically, a connecting line segment between the central axis of the first lower end longitudinal axis and the central axis of the first upper end longitudinal axis, i.e., a connecting line between the center point of the first bearing seat 203 for docking the outer rocker arm 304 and the center point of the corresponding second bearing seat 307);

[0163] ∠D2A2F2 and ∠D1A1F 12 , are respectively the angle value α1 monitored by the angle encoder 302 on the device unit on the left, and the angle value α2 monitored by the angle encoder 302 on the device unit on the right;

[0164] The length of the line segment E1E2 is the opening size value L, wherein E1 and E2 are points of two vertical clamping plates 3062 close to one side of the brake rail (i.e., the outer side), and the line segment E1E2 is parallel to the ground;

[0165] A1 and A2 are the center points of the two first bearing seats 203 close to the base rail 902, and the distance |A1A2| between A1 and A2 is M, where M is a known fixed value;

[0166] The distance M between A1 and A2 is also equal to the distance between the central axes of the two first motors 301, that is, the distance between the center points of the two first bearing seats 203 close to the base rail 902;

[0167] The vertical length of the inner rocker arm 305 and the vertical length of the side rocker arm 304 are both N, and N is a known fixed value.

[0168] Because the vertical lines E1F1 and E2F2 in the figure are always perpendicular to the ground,

[0169] L=|F1F2|=|A1A2|-|A1F1|-|A2F2|=M-|A1f1|-|A2F2|; Formula (2);

[0170] Among them, |F1F2| is the straight line distance between the F1 and F2 position points;

[0171] |A1F1| is the distance between the central axis of the longitudinal output shaft of the first motor 301 located on the left (i.e. the central axis of the first bearing seat 203 through which the shaft passes) and the position point F1;

[0172] |A1F1|=|A1I1|+|I1F1|; Formula (3);

[0173] |A1I1| is the distance between the central axis of the longitudinal output shaft of the first motor 301 on the left (i.e., the central axis of the first bearing seat 203 through which the shaft passes), and the position point I1, and the trigonometric function can be obtained as follows:

[0174] |A1I1|=|A1D1|cos∠D1A1F1=N·cos∠α1; Formula (4);

[0175] Since H1G1∥I1F1 and |H1G1|=|I1F1|=t, the following calculation formula is obtained:

[0176] |A1F1|=N·cos∠α1+t; Formula (5);

[0177] |A2F2| is the distance between the central axis of the longitudinal output shaft of the first motor 301 located on the right (i.e. the central axis of the first bearing seat 203 through which the shaft passes) and the position point F2;

[0178] |A2F2|=|A2I2|+|I2F2|; Formula (6);

[0179] |A2I2| is the distance between the central axis of the longitudinal output shaft of the first motor 301 located on the right (i.e., the central axis of the first bearing seat 203 through which the shaft passes), and the position point I2, and the trigonometric function can be obtained as follows:

[0180] |A2I2|=|A2D2|cos∠D2a2f2=N·cos∠α2; Formula (7);

[0181] Since H2G2||I2F2, and |H2G2|=|I2F2|=t, the following calculation formula is obtained:

[0182] |A2F2|=N·cos∠α2+t; Formula (8);

[0183] Then, by substituting the above formula (5) and formula (8) into formula (2), the following calculation formula for the opening size can be obtained:

[0184] L = MN·(cos∠α1+cos∠α2)-2t; Formula (1).

[0185] Compared with the prior art, the measuring device and method for measuring the opening size of the brake rail of a vehicle reducer provided by the present invention have the following beneficial effects:

[0186] 1. The overall design of the present invention is reasonable, and the displacement of the brake rail can be collected in real time and the measurement is accurate. When the device of the present invention loses power due to a fault, the rotating mechanism component 3 of the device can fall directly under the action of gravity, and will not block the vehicle from sliding.

[0187] It should be noted that, for the present invention, see Figure 7 As shown, when the device of the present invention loses power due to a fault, the outer rocker arm 304, the inner rocker arm 305, the contact plate 306 and the second bearing seat 307 in the rotating mechanism component 3 will move according to the Figure 7 It will not fall on the track diagram, will not collide with the brake rail and the basic rail, and will not be on the running track of the wheel, so it will not affect the normal passage of the train wheels.

[0188] See also Figure 7 , Figure 7 The diagram is a schematic diagram of the falling trajectory of the rotating mechanism composition using a single side as an example. In the figure, the bottom support plate 3061 of the contact plate 306 is always parallel to the bottom surface, and the vertical clamping plate 3062 is always perpendicular to the bottom surface. The two second bearing seats 307 always move around the axis below the inner rocker arm 305 and the outer rocker arm 304.

[0189] It should also be noted that the first motor 301 and the second motor 310 do not have a power-off holding function, and the rotating mechanism component 3 includes an outer rocker arm 304, an inner rocker arm 305, a contact plate 306, and a second bearing seat 307. Since the rotating mechanism component 3 is a parallel hyperbolic structure, when falling, the center of the second bearing seat 307 always rotates around the center of the first bearing seat 203, the bottom support plate 3061 of the contact plate 306 is always parallel to the ground, and the vertical clamping plate 3062 of the contact plate 306 is always perpendicular to the ground, then the falling trajectory is as follows: Figure 7 As shown, there is no impact on contact with the brake rail and stock rail.

[0190] In addition, for the present invention, when the measurement operation is not performed, the rotating mechanism component 3 can be controlled to fall, and the position is as follows: Figure 8 As shown, Figure 8 The state of the device of the present invention when the opening size is not measured is shown, and at this time, the rotating mechanism component 3 of the device is in a falling state.

[0191] When measurement is required, a signal is sent to the first motor 301 and the second motor 310, and the first motor 301 and the second motor 310 start to rotate synchronously, thereby driving the outer rocker arm 304 and the inner rocker arm 305 in the rotating mechanism component 3 to rotate. When the rotating mechanism component 3 stops rotating, the contact plates 306 (specifically the vertical clamping plates 3062) of the rotating mechanism components 3 in the two device units are in close contact with the opposite sides of the two brake rails 901, and the angle value of the angle encoder at this time is collected.

[0192] 2. For the present invention, the sensor (specifically, the angle encoder) can be a high-precision model with long-distance transmission capability, high measurement accuracy, and can collect data over long distances. For example, the angle encoder can be an angle encoder of model BRT38-ROM16384-RT1 produced by Breiter.

[0193] 3. The device of the present invention can adopt a sealed design to prevent rain and dust.

[0194] 4. The present invention provides a solution for real-time, online, long-distance measurement of the distance between two brake rails of a vehicle reducer, based on the development of sensor technology, especially the development of various types of sensor technology.

[0195] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A measuring device for the opening size of a vehicle reducer brake rail, characterized in that: It includes two device units which are symmetrically distributed on the left and right; A stock rail (902) is provided in the gap between the two device units; A base rail (902) located between two longitudinally distributed brake rails (901); Two device units are respectively located below the two brake rails (901); Each device unit includes a base component (1), a box body component (2) and a rotating mechanism component (3); A box body component (2) is arranged on the top of the base component (1); The base component (1) is used to provide support for the box body component (2); The front side of the box body component (2) is provided with a rotating mechanism component (3); The rotating mechanism components (3) in the two device units are used to rotate the motor therein so that the contact plates thereon are in tight contact with the opposite sides of the two brake rails (901).

2. The vehicle reducer brake rail opening size measuring device according to claim 1, characterized in that: For each device unit, a base is composed (1), including a base plate (101) and a support rod (102); Two support rods (102) are respectively arranged at the left and right ends of the top of the base plate (101) and are spaced apart from each other. The upper part of the support rod (102) is plugged into the box body component (2).

3. The vehicle reducer brake rail opening size measuring device according to claim 2, characterized in that: The base plate (101) is provided with a base plate vertical through hole at a position corresponding to each support rod (102); After the support rod (102) passes through the vertical through hole of the base plate from bottom to top, it is fixed on the base plate (101) through two first lower side fasteners (103).

4. The vehicle reducer brake rail opening size measuring device according to claim 2, characterized in that: The upper part of the support rod (102) is plugged into the box body (2), and the specific structural design is as follows: The bottom plate (2010) of the box body (201) of the box body assembly (2) is provided with a vertical through hole at the bottom of the box at a position corresponding to the support rod (102); The upper portion of the support rod (102) passes through the vertical through hole at the bottom of the box from bottom to top, and is then fixed to the bottom plate (210) of the box body (201) of the box body assembly (2) through two first upper fasteners (104); Two first upper fasteners (104) are threadedly connected to the external threads on the upper end of the support rod (102); The bottom plate (2010) of the box body (201) is located between the two first upper fasteners (104), and its upper and lower sides are in tight contact with the two first upper fasteners (104).

5. The vehicle reducer brake rail opening size measuring device according to claim 1, characterized in that: For each device unit, the box body composition (2) includes: a box body (201); The front panel of the hollow box body (201) has two first bearing seats (203) provided with openings; The two first bearing seats (203) are symmetrically distributed on the left and right sides; The inner cavity of the box body (201) is provided with a first support seat (207); A first support seat (207) is fixedly disposed on the bottom plate (2010) of the box body (201); A box cover (202) is provided on the top of the box body (201); The left and right sides of the box cover (202) are respectively fixed to the left and right side walls of the box body (201) using two second fasteners (204) spaced apart from each other in the front and back directions; The bottom of the box cover (202) is surrounded by a circle of cover convex edges protruding vertically downwards; A sealing strip is pasted on the inner side of the convex edge of the cover.

6. The vehicle reducer brake rail opening size measuring device according to claim 1, characterized in that: For each device unit, a rotating mechanism is composed (3), including: a first motor (301), a second motor (310), an angle encoder (302), a coupling (303), an outer rocker arm (304), an inner rocker arm (305) and a contact plate (306); The first motor (301) and the second motor (310) are respectively fixed to the top of the first support seat (207) in the box body component (2), at one end close to the base rail (902) and at one end away from the base rail (902); The first motor (301) is a dual-output shaft motor, wherein the front output shaft is connected to the rear side of the second lower longitudinal shaft (3053) of the inner rocker arm (305) through a coupling (303), and the rear output shaft is connected to the rotating shaft of an angle encoder (302) through a coupling (303); A second motor (310) is connected to the rear side of a first lower longitudinal axis (3043) of an outer rocker arm (304) through a coupling (303); The middle section of the first lower longitudinal axis (3043) of the outer rocker arm (304) and the middle section of the second lower longitudinal axis (3053) of the inner rocker arm (305) are respectively connected to the inner ring of the bearing installed on the first bearing seat (203) in the box body component (2); A bottom support plate (3061) of the contact plate (306) is provided directly above the outer rocker arm (304) and the inner rocker arm (305); A contact plate (306), comprising a bottom support plate (3061) and a vertical clamping plate (3062); A vertically distributed vertical clamping plate (3062) is provided at the top of one end of the bottom support plate (3061) of the contact plate (306); A second bearing seat (307) is respectively provided at the left and right ends of the bottom surface of the bottom support plate (3061) of the contact plate (306); The inner rings of the bearings mounted on the two second bearing seats (307) are respectively connected to the first upper longitudinal axis (3041) of the outer rocker arm (304) and the second upper longitudinal axis (3051) of the inner rocker arm (305).

7. The vehicle reducer brake rail opening size measuring device according to claim 6, characterized in that: The installation position of the second bearing seat (307) connected to the second upper longitudinal axis (3051) of the inner rocker arm (305) is located behind the installation position of the second bearing seat (307) connected to the first upper longitudinal axis (3041) of the outer rocker arm (304); The second upper longitudinal axis (3051) of the inner rocker arm (305) is inserted from back to front into the inner ring of the bearing mounted on the corresponding second bearing seat (307); The first upper longitudinal axis (3041) of the outer rocker arm (304) is inserted from front to back into the inner ring of the bearing mounted on the corresponding second bearing seat (307); The contact plate (306) is L-shaped; A vertical clamping plate (3062) of the contact plate (306) provided in each device unit is located between the brake rail (901) and the adjacent base rail (902); The bottom support plate (3061) of the contact plate (306) is horizontally distributed.

8. The vehicle reducer brake rail opening size measuring device according to claim 6, characterized in that: The outer rocker arm (304) comprises a first upper longitudinal axis (3041), a first main body vertical axis (3042) and a first lower longitudinal axis (3043); A first upper longitudinal axis (3041) and a first lower longitudinal axis (3043) are respectively vertically connected to the upper and lower ends of the rear side of the first main body vertical axis (3042); The inner rocker arm (305) comprises a second upper longitudinal axis (3051), a second main body vertical axis (3052) and a second lower longitudinal axis (3053); The second upper longitudinal axis (3051) and the second lower longitudinal axis (3053) are respectively vertically connected to the rear lower end and the front upper end of the second main body vertical axis (3052).

9. A method for measuring the opening size of a brake rail of a vehicle reducer based on the measuring device for measuring the opening size of a brake rail of a vehicle reducer according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step S1, driving the first motors (301) in the two device units on the left to rotate counterclockwise, and driving the first motors (301) in the two device units on the right to rotate clockwise, so that the inner rocker arms (305) in the two device units rotate in opposite directions, and the contact plates (306) in the two device units rotate together with the inner rocker arms (305); Step S2, when the vertical clamping plates (3062) of the contact plates (306) in the two device units come into contact with the opposite sides of the two brake rails (901), the angle values ​​on the two angle encoders (302) on the two device units are recorded; Step S3, obtaining the opening size value L between the two brake rails (901) according to the angle values ​​on the two angle encoders (302) on the two device units and a preset opening size calculation formula.

10. The method for measuring the opening size of a brake rail according to claim 9, characterized in that: In step S3, the preset opening size calculation formula is as follows: L = MN·(cos∠α1+cos∠α2)-2t; Formula (1); Wherein, L is the opening size value between the two brake rails (901); N is the vertical length of the inner rocker arm (305), which is equal to the vertical length of the outer rocker arm (304); M is the distance between the central axes of the longitudinal output shafts of the two first motors (301) of the two device units, which is also equal to the distance between the central points of the two first bearing seats (203) close to the base rail (902); When the contact plates (306) of the rotating mechanism components (3) in the two device units are in close contact with the opposite sides of the two brake rails (901), the angle value monitored by the angle encoder (302) on the left device unit is α1; When the contact plates (306) of the rotating mechanism components (3) in the two device units are in close contact with the opposite sides of the two brake rails (901), the angle value monitored by the angle encoder (302) on the right device unit is α2.

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