Matching device for measuring opening size of brake rail of vehicle retarder

Abstract

The utility model discloses a matching device for measuring the opening size of a vehicle retarder brake rail. The matching 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 utility model, 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 utility model relates to the technical field of rail transportation, in particular to a matching device for measuring the opening size of a brake rail of a vehicle reducer. Background Art

[0002] Rail transit is a vital form of transportation, and freight diversion relies on the operation of hump yards. Vehicle speed reducers are a core piece of equipment at these yards. With the rapid development of rail transit in my country, the large-scale construction of hump yards, and the increasing freight capacity and volume, the requirements for vehicle speed reducers are also becoming increasingly stringent.

[0003] A vehicle reducer is a device that uses friction to slow the vehicle by clamping two brake rails on either side of the wheels traveling on the base rail. However, prolonged friction and impact can degrade the performance of the vehicle reducer. After the reducer has been used for a period of time, the opening distance between the two adjacent brake rails will increase, causing the braking force of the reducer to decrease when the vehicle passes through the reducer. To ensure the normal performance and braking force of the vehicle reducer, the minimum spacing between the two brake rails (i.e., the opening size, which 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 either side of the base rail) must be regularly inspected.

[0004] Currently, conventional inspection methods rely on manual inspection, where workers in the railway electrical department inspect and test along the track. This method not only fails to accurately and reliably detect the minimum distance between the two brake rails (i.e., the opening size), but is also inconvenient, labor-intensive, and inefficient for workers. It is also prone to missed inspections and false detections, making it impossible to effectively ensure safe train operation.

[0005] See also Figure 1 As shown, below the gap between the two brake rails 901 of the speed reducer is the base rail 902. The rail heads of the two brake rails 901 are initially arc-shaped, but become flat after long-term wear. The two brake rails 901 are arranged opposite each other, and the shortest distance L (i.e., the opening dimension) between the two brake rails 901 refers to the minimum distance between the rail head surfaces of the two brake rails. The wheels of a freight vehicle roll on the rail heads atop the base rails, and the speed reducer relies on the friction between the two brake rails and the wheels to slow the vehicle. Therefore, measuring the shortest distance L (i.e., the opening dimension) between the two brake rails on either side of the base rail is particularly important.

[0006] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Utility Model Content

[0007] The purpose of the utility model is to provide a matching device for measuring 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 utility model provides a matching device for measuring the opening size of a vehicle reducer brake rail, 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 the two longitudinally distributed 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 is provided with a box body;

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

[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 come into close contact with the opposite sides of the two brake rails through the rotation of the motors therein.

[0017] It can be seen from the technical solution provided by the above utility model that, compared with the prior art, the utility model provides a measuring device 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 accurately and reliably further obtain the distance between the two brake rails in the reducer (i.e., the opening size), which has great practical significance.

[0018] 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. There is no 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

[0019] Figure 1 A schematic diagram showing the positional relationship between the two brake rails and the base rails of a vehicle speed reducer;

[0020] Figure 2This is a structural block diagram of a device unit in a vehicle speed reducer brake rail opening size measuring device provided by the utility model;

[0021] Figure 3 This is a front view of a device unit in a matching device for measuring the opening size of a vehicle speed reducer brake rail provided by the utility model;

[0022] Figure 4 A top view of a device unit in a vehicle speed reducer brake rail opening size measuring device provided by the present invention (the box cover is not shown in this figure);

[0023] Figure 5 This is a schematic diagram of the installation state of the vehicle speed reducer brake rail opening size measurement device 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;

[0024] Figure 6 To obtain the structural diagram of the brake rail opening size;

[0025] 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 vehicle speed reducer brake rail provided by the utility model;

[0026] Figure 8 This is a schematic diagram of the installation state of the vehicle speed reducer brake rail opening size measurement device 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) does not need to be measured;

[0027] Figure 9 A schematic structural diagram of an outer rocker arm included in a device unit of a vehicle speed reducer brake rail opening size measuring device provided by the present invention;

[0028] Figure 10 This is a schematic structural diagram of an inner rocker arm included in a device unit of a vehicle speed reducer brake rail opening size measuring device provided by the present invention;

[0029] In the figure, 1-base composition; 2-box composition; 3-rotating mechanism composition;

[0030] 101 - base plate; 102 - support rod; 103 - first lower fastener; 104 - first upper fastener;

[0031] 201-box body; 202-box cover; 203-first bearing seat; 204-second fastener; 205-third fastener;

[0032] 206 - fourth fastener; 207 - first support base; 208 - cable socket; 209 - fifth fastener; 210 - second support base;

[0033] 301-first motor; 302-angle encoder; 303-coupling; 304-outer rocker arm; 305-inner rocker arm;

[0034] 306 - contact plate; 307 - second bearing seat; 308 - sixth fastener; 309 - seventh fastener; 310 - second motor. DETAILED DESCRIPTION

[0035] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0036] 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 to 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 device or element referred to 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.

[0037] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0039] Example 1

[0040] See also Figures 1 to 10 The utility model provides a matching device for measuring the opening size of a vehicle reducer brake rail, comprising: two device units symmetrically distributed on the left and right;

[0041] In the gap between the two device units, a stock rail 902 (e.g., a steel rail) is provided;

[0042] The stock rail 902 is located between the two longitudinally distributed brake rails 901;

[0043] Two device units are respectively located below the two brake rails 901;

[0044] It should be noted that a brake rail 901 is provided on both sides of each basic rail 902; the two basic rails 902 constitute a section of track for a railway vehicle; the two train wheels at the bottom of the railway vehicle (such as a freight or passenger vehicle) pass over the two basic rails 902.

[0045] Each device unit includes a base component 1, a box body component 2 and a rotating mechanism component 3;

[0046] The top of the base component 1 is provided with a box body component 2;

[0047] The base component 1 is used to provide support for the box body component 2;

[0048] The front side of the box body component 2 is provided with a rotating mechanism component 3;

[0049] The rotating mechanism component 3 in the two device units is 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.

[0050] 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;

[0051] Two support rods 102 are provided at the left and right ends of the top of the base plate 101 and are spaced apart from each other.

[0052] The upper portion of the support rod 102 is plugged into the box body to form a two-phase connection.

[0053] In a specific implementation, the base plate 101 is provided with a vertical through hole at a position corresponding to each support rod 102;

[0054] 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).

[0055] Furthermore, the two first lower fasteners 103 are threadedly connected to the external threads on the lower end of the support rod 10;

[0056] 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 .

[0057] 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 .

[0058] In specific implementation, the upper part of the support rod 102 and the box body are connected in two phases, and the specific structural design is as follows:

[0059] The bottom plate 2010 of the box body 201 of the box body component 2 is provided with a vertical through hole at the bottom of the box at a position corresponding to the support rod 102;

[0060] 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 2010 of the box body 201 of the box body assembly 2 via two first upper fasteners 104 (eg, fastening nuts).

[0061] Furthermore, the two first upper fasteners 104 are threadedly connected to the external threads on the upper end of the support rod 10;

[0062] 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 .

[0063] 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;

[0064] The front panel of the hollow box body 201 is provided with two first bearing seats 203;

[0065] The two first bearing seats 203 are symmetrically distributed on the left and right sides;

[0066] On the rear side panel of the box body 201, two cable sockets 208 are provided in openings;

[0067] The inner cavity of the box body 201 is provided with a first support seat 207;

[0068] The first support base 207 is fixedly mounted on the bottom plate 2010 of the box body 201;

[0069] 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;

[0070] In a specific implementation, the first support base 207 is fixed to the bottom plate 2010 of the box body 201 by using a plurality of fourth fasteners 206 (such as fastening screws);

[0071] 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 (e.g., a fastening screw);

[0072] One of the cable sockets 208 is connected to the first motor 301 and the second motor 310 via connecting cables, respectively, for providing working power to the two motors and transmitting rotation control signals (such as start synchronous rotation signals and stop rotation signals) sent by an external control device (such as an industrial computer) to the two motors;

[0073] 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).

[0074] In specific implementation, a box cover 202 is provided on the top of the box body 201;

[0075] 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 in the front and back directions.

[0076] In a specific implementation, the bottom of the box cover 202 is surrounded by a circle of cover ridges that protrude vertically downwards;

[0077] A sealing strip is attached to the inner side of the convex edge of the cover, thereby making the entire box body waterproof and dustproof.

[0078] In the present invention, in a specific implementation, for each device unit, the rotating mechanism consists 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;

[0079] The first motor 301 and the second motor 310 are respectively fixed to the top of the first support base 207 in the box body component 2, one end close to the base rail 902 and the other end away from the base rail 902;

[0080] The first motor 301 is a dual-output shaft motor, wherein the front output shaft thereof is connected to the rear side of the second lower longitudinal shaft 3053 of the inner rocker arm 305 via a coupling 303, and the rear output shaft thereof is connected to the rotating shaft of an angle encoder 302 via a coupling 303;

[0081] 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;

[0082] 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 mounted on the first bearing seat 203 in the box assembly 2;

[0083] 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;

[0084] The contact plate 306 includes a bottom support plate 3061 and a vertical clamping plate 3062;

[0085] A vertical clamping plate 3062 is provided on the top of one end of the bottom support plate 3061 of the contact plate 306;

[0086] A second bearing seat 307 is provided at the left and right ends of the bottom surface of the bottom support plate 3061 of the contact plate 306;

[0087] The inner rings of the bearings mounted on the two second bearing seats 307 are 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, respectively;

[0088] Specifically, 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;

[0089] 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;

[0090] 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 installed on the corresponding second bearing seat 307.

[0091] 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).

[0092] In specific implementation, a first mounting plate 2070 is vertically provided on the top front side of the first support seat 207 in the box body component 2;

[0093] 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 a sixth fastener 308 (such as a fastening screw) (the first mounting plate has corresponding screw holes and through holes for allowing the output shafts of the first motor 301 and the second motor 310 to pass through).

[0094] In specific implementation, the angle encoder 302 is fixedly arranged on the second support base 210;

[0095] The second support base 210 is fixed on the bottom plate 2010 of the box body 201 through four fourth fasteners 206;

[0096] A second mounting plate 2100 is vertically provided on the top front side of the second support base 210;

[0097] 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).

[0098] Furthermore, the outer rocker arm 304 includes a first upper longitudinal axis 3041 , a first main body vertical axis 3042 , and a first lower longitudinal axis 3043 ;

[0099] A first upper longitudinal axis 3041 and a first lower longitudinal axis 3043 are respectively connected vertically to the upper and lower ends of the rear side of the first main body vertical axis 3042;

[0100] The central axis of the first upper longitudinal axis is perpendicular to the central axis of the first main body vertical axis;

[0101] 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 main body;

[0102] Furthermore, the inner rocker arm 305 includes a second upper longitudinal axis 3051, a second main body vertical axis 3052 and a second lower longitudinal axis 3053;

[0103] 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;

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

[0105] The central axis of the second lower end longitudinal axis is perpendicular to the central axis of the second main body vertical axis.

[0106] 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;

[0107] 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.

[0108] 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;

[0109] In the present invention, in a specific implementation, the contact plate 306 is L-shaped;

[0110] The vertical clamping plate 3062 of the contact plate 306 included in each device unit is located between the brake rail 901 and the adjacent base rail 902 .

[0111] In a specific implementation, the bottom support plate 3061 of the contact plate 306 is horizontally distributed.

[0112] In order to more clearly understand the technical solution of the present invention, the working principle of the present invention is described below:

[0113] See also Figure 5 As shown, first, the device of the present invention is installed below the two brake rails 901;

[0114] 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 (and at the same speed), while the angle encoder 302 continuously obtains the angle value of the inner rocker arm 305;

[0115] Among them, the rotation directions of the inner rocker arms 305 on the two device units are opposite and are 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.

[0116] Then, when the contact plates 306 connected to the inner rocker arms 305 of the two device units rotate and the vertical clamping plates 3062 on the two contact plates 306 hit the opposite sides of the two brake rails 901, the angle values ​​obtained by the two angle encoders 302 on the two device units stop changing and the angle values ​​at this moment are recorded. At this time, the two first motors 301 on the two device units stop rotating. Based on the recorded angle values, the current opening value can be calculated.

[0117] The preset opening size calculation formula is as follows:

[0118] L = MN·(cos∠α1+cos∠α2)-2t; Formula (1);

[0119] Wherein, L is the opening size between the two brake rails 901;

[0120] 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 via 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 via the outer rocker arm 304);

[0121] M is the distance between the central axes of the longitudinal output shafts of the two first motors 301 of the two device units;

[0122] 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;

[0123] 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 right device unit is α2;

[0124] 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).

[0125] Example 2

[0126] In the present invention, the present invention provides a vehicle speed reducer brake rail opening size measuring device, which also includes an industrial control computer;

[0127] The industrial control computer is connected to the two angle encoders 302 on the two device units (can be a wireless connection) 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 the preset opening size calculation formula.

[0128] Example 3

[0129] In the present invention, the present invention provides a vehicle speed reducer brake rail opening size measuring device, which also includes an industrial control computer;

[0130] The industrial control computer is connected to the two angle encoders 302 on the two device units (possibly wirelessly) to collect the angle values ​​monitored by the two angle encoders 302 and display them on a corresponding display screen. At this time, the staff can calculate the opening size L between the two brake rails 901 based on the above calculation formula (1), the two angle values ​​displayed on the display screen, and the previously known M and N.

[0131] Based on the above-mentioned vehicle decelerator brake rail opening size measuring device provided by the utility model, the utility model also provides a brake rail opening size measuring method based on the vehicle decelerator brake rail opening size measuring device, which includes the following steps:

[0132] Step S1: driving the first motors 301 in the two left device units to rotate counterclockwise, and driving the first motors 301 in the two right device units to rotate clockwise, so that the inner rocker arms 305 in the two device units rotate away from each other, and the contact plates 306 in the two device units rotate along with the inner rocker arms 305;

[0133] Step S2: When the contact plates 306 (specifically, the vertical clamping plates 3062) in the two device units come into contact with opposite sides of the two brake rails 901, the angle values ​​on the two angle encoders 302 on the two device units are recorded;

[0134] Step S3 , obtaining the opening size 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.

[0135] In step S3, the preset opening size calculation formula is as follows:

[0136] L = MN·(cos∠α1+cos∠α2)-2t; Formula (1);

[0137] Wherein, L is the opening size between the two brake rails 901;

[0138] 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 via 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 via the outer rocker arm 304);

[0139] 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 center points of the two first bearing seats 203 close to the stock rail 902;

[0140] 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;

[0141] 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 right device unit is α2.

[0142] In the present invention, 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 reasoning and acquisition process of the above formula (1) is specifically described as follows:

[0143] 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. Therefore, the two rocker arms 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 to Figure 6 The structural diagram shown;

[0144] See also Figure 6 As shown, A1D1, B1C1, A2D2, and B2C2 are all rocker arms of this device;

[0145] 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;

[0146] C1, C2, D1, and D2 are the center points of the four second bearing seats 307 respectively;

[0147] H1 and H2 are the intersection points of 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 stock rail 902 are located on these two vertical lines respectively;

[0148] E1 and E2 are points on the two vertical clamping plates 3062 close to the brake rail (i.e., the outer side), and the line segment E1E2 is parallel to the ground;

[0149] F1 and F2 are the projection points of E1 and E2 on the straight line B1B2 respectively;

[0150] G1 and G2 are the projection points of H1 and H2 on the straight line E1F1 and the straight line E2F2 respectively;

[0151] I1 and I2 are the projection points of D1 on D2 on the line B1B2;

[0152] H1, D1, and I1 are on the same vertical line, and H2, D2, and I2 are on the same vertical line;

[0153] The lengths of line segments H1G1 and H2G2 are fixed values ​​t;

[0154] The lengths of line segment H1G1 and 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);

[0155] Figure 6 , A1D1 is the vertical length line segment of the inner rocker arm 305 in the device unit located on the left (specifically, the connecting line segment between the central axis of the second lower longitudinal axis and the central axis of the second upper longitudinal axis, that is, the connecting line between the center point of the first bearing seat 203 for connecting the inner rocker arm 305 and the center point of the corresponding second bearing seat 307);

[0156] B1C1 is a vertical length line segment of the outer rocker arm 304 in the device unit located on the left (specifically, a connecting line segment between the central axis of the first lower longitudinal axis and the central axis of the first upper longitudinal axis, i.e., a line connecting 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);

[0157] A2D2 is a vertical length line segment of the inner rocker arm 305 in the device unit located 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);

[0158] B2C2 is a vertical length line segment of the outer rocker arm 304 in the device unit located on the right (specifically, a connecting line segment between the central axis of the first lower longitudinal axis and the central axis of the first upper longitudinal axis, i.e., a line connecting 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);

[0159] ∠D2A2F2 and They 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;

[0160] The length of the line segment E1E2 is the opening dimension value L, wherein E1 and E2 are points on the two vertical clamping plates 3062 close to the brake rail (i.e., the outer side), and the line segment E1E2 is parallel to the ground;

[0161] A1 and A2 are the center points of the two first bearing seats 203 close to the stock rail 902 , and the distance |A1A2| between A1 and A2 is M, where M is a known fixed value;

[0162] 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 stock rail 902;

[0163] The vertical length of the inner rocker arm 305 and the vertical length of the side rocker arm 304 are both N, which is a known fixed value.

[0164] Because the vertical lines E1F1 and E2F2 in the figure are always perpendicular to the ground,

[0165] L=|F1F2|=|A1A2|-|A1F1|-|A2F2|=M-|A1F1|-|A2F2|;Formula (2);

[0166] Where |F1F2| is the straight line distance between the F1 and F2 positions;

[0167] |A1F1| 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 point F1;

[0168] |A1F1|=|A1I1|+|I1F1|; Formula (3);

[0169] |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 I1. According to trigonometric functions, we can get:

[0170] |A1I1|=|A1D1|cos∠D1A1F1=N·cos∠α1; Formula (4);

[0171] Since H1G1||I1F1 and |H1G1|=|I1F1|=t, the following calculation formula is obtained:

[0172] |A1F1|=N·cos∠α1+t; Formula (5);

[0173] |A2F2| is the distance between the central axis of the longitudinal output shaft of the first motor 301 on the right (i.e., the central axis of the first bearing seat 203 through which the shaft passes) and point F2;

[0174] |A2F2|=|A2I2|+|I2F2|; Formula (6);

[0175] |A2I2| is the distance between the central axis of the longitudinal output shaft of the first motor 301 on the right (i.e., the central axis of the first bearing seat 203 through which the shaft passes), and the position I2. According to trigonometric functions, we can get:

[0176] |A2I2|=|A2D2|cos∠D2A2F2=N·cos∠α2; Formula (7);

[0177] Since H2G2||I2F2 and |H2G2|=|I2F2|=t, the following calculation formula is obtained:

[0178] |A2F2|=N·cos∠α2+t; Formula (8);

[0179] Then, substitute the above formula (5) and formula (8) into formula (2) to obtain the following calculation formula for the opening size:

[0180] L = MN·(cos∠α1+cos∠α2)-2t; Formula (1).

[0181] Compared with the prior art, the device for measuring the opening size of the brake rail of a vehicle reducer provided by the present invention has the following beneficial effects:

[0182] 1. The overall design of the present invention is reasonable, and it can collect brake rail displacement in real time and measure accurately. 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 hinder the vehicle from sliding.

[0183] It should be noted that, for this utility model, 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 3 will rotate according to the force of gravity. Figure 7 It will not fall on the track diagram and will not collide with the brake rail and the basic rail. At the same time, it will not be on the driving track of the wheel and will not affect the normal passage of the train wheels.

[0184] See also Figure 7 , Figure 7 This is a schematic diagram of the falling trajectory of the rotating mechanism, using a single-side 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 blocks 307 always rotate around the axis below the inner rocker arm 305 and the outer rocker arm 304.

[0185] It should also be noted that the first motor 301 and the second motor 310 do not have a power-off hold function. The rotating mechanism component 3 includes the outer rocker arm 304, the inner rocker arm 305, the contact plate 306 and the 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. The falling trajectory is as follows: Figure 7 As shown, there is no impact on access to the brake rail and stock rail.

[0186] 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 can be 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. At this time, the rotating mechanism component 3 of the device is in a falling state.

[0187] When measurement is required, a signal is sent to the first motor 301 and the second motor 310, causing them to rotate synchronously, thereby driving the outer rocker arm 304 and the inner rocker arm 305 of the rotating mechanism component 3. When the rotating mechanism component 3 stops rotating, the contact plates 306 (specifically, the vertical clamping plates 3062) of the rotating mechanism component 3 in the two device units come into 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.

[0188] 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 the ability to collect data from a distance. For example, the angle encoder can be the BRT38-ROM16384-RT1 produced by Breit.

[0189] 3. The device of the present invention can adopt a sealed design to prevent rain and dust.

[0190] 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 (i.e., the opening size) based on the development of sensing technology, especially the development of various types of sensor technology.

[0191] 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 principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A device for measuring the opening size of a vehicle reducer brake rail, characterized in that: It includes two device units that 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) is 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); The top of the base component (1) is provided with a box body component (2); 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 component (3) in the two device units is used to rotate the motor therein so that the contact plate thereon is in close contact with the opposite side 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 provided at the left and right ends of the top of the base plate (101) and are spaced apart from each other. The upper portion of the support rod (102) is plugged into the box body (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 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: Regarding the connection between the upper portion of the support rod (102) and the box body (2), the specific structural design is as follows: The bottom plate (2010) of the box body (201) of the box body component (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 (2010) of the box body (201) of the box body assembly (2) via 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) is provided with two first bearing seats (203) through 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 mounted 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. 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 shaft (3043) of an outer rocker arm (304) via 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) having a 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 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 speed 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 the back to the 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; Each device unit has a vertical clamping plate (3062) of the contact plate (306), which is located between the brake rail (901) and the adjacent basic rail (902); The bottom support plate (3061) of the contact plate (306) is horizontally distributed.

8. The vehicle speed reducer brake rail opening size measuring device according to claim 6, characterized in that: An outer rocker arm (304) includes 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) includes 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).

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