An intelligent tester for measuring the shortest distance between the openings of two brake rails

Abstract

The present invention discloses an intelligent tester for measuring the shortest distance between the openings of two brake rails, including a spring telescopic mechanism; the spring telescopic mechanism includes: a bottom plate assembly, an upper plate assembly, a left telescopic block assembly, a right telescopic block assembly, a handle (23) and a roller assembly. The intelligent tester for measuring the shortest distance between the openings of two brake rails disclosed by the present invention has a scientific structural design, can accurately and reliably measure the shortest distance between the openings of two brake rails, and ensure the measurement accuracy. In addition, the present invention can significantly reduce the workload of the staff during measurement and save valuable human resources.

Description

Technical Field

[0001] The present invention relates to the technical field of testing vehicle retarders in railway marshalling yards, and particularly to an intelligent tester for measuring the shortest distance between the openings of two brake rails. Background Art

[0002] Currently, for vehicle retarders in railway freight marshalling yards in China (such as hump yard retarders), when measuring the minimum distance between the two brake rails of the retarder, general measuring tools are usually used, such as outside calipers. Since the top surfaces of the two brake rails are irregular surfaces, it is impossible to achieve standardized and normalized measurement when using general measuring tools, and there are certain human factors, resulting in relatively large measurement errors.

[0003] In addition, when measuring the minimum distance between the two brake rails of the vehicle retarder in the freight marshalling yard, the workload is relatively large and a large amount of manpower is required.

[0004] It should be noted that the reason for measuring the minimum distance between the two brake rails of the retarder is as follows: for the vehicle retarder in the hump yard, it mainly realizes the deceleration of the freight vehicle through the extrusion friction between two adjacent brake rails on the retarder and the wheels of the freight vehicle. After the retarder is used for a period of time, the opening distance between two adjacent brake rails will change (become larger). When the vehicle passes through the retarder, the braking force of the retarder on the vehicle will also change (become smaller). In order to ensure the braking force of the retarder, it is necessary to detect the distance between the brake rails.

[0005] See Figure 1 As shown, the two brake rails of the retarder include a first brake rail 1000 and a second brake rail 2000 that are oppositely distributed; below the gap between the first brake rail 1000 and the second brake rail 2000 is the base rail 3000;

[0006] From Figure 1 it can be known that for the first brake rail 1000 and the second brake rail 2000, the rail heads of these two brake rails are arc surfaces. The first brake rail 1000 and the second brake rail 2000 are oppositely arranged, and the minimum distance t between the two brake rails refers to the minimum distance between the arc surfaces of the two brake rail heads. The wheels of the freight vehicle roll on the rail head of the base rail, and the retarder decelerates the vehicle by relying on the extrusion friction between the two brake rails and the wheels. Therefore, the detection of the minimum distance t between the two brake rails is relatively important. Summary of the Invention

[0007] The purpose of the present invention is to provide an intelligent tester for measuring the shortest distance between the openings of two brake rails in view of the technical defects existing in the prior art.

[0008] To this end, the present invention provides an intelligent tester for measuring the shortest distance between the openings of two brake rails, including a spring telescopic mechanism; the spring telescopic mechanism includes: a bottom plate assembly, an upper plate assembly, a left telescopic block assembly, a right telescopic block assembly, a handle and a roller assembly;

[0009] Among them, the bottom plate assembly includes a bottom plate, a first guide rail and two first sliders;

[0010] The first guide rail is horizontally distributed and located at the longitudinal middle position of the bottom plate;

[0011] The first guide rail is fixed to the top of the bottom plate by bolts;

[0012] At the left and right ends of the top of the first guide rail, a first slider is respectively installed;

[0013] On the top of each first slider, a first connecting plate is installed;

[0014] Among them, the upper plate assembly includes: an upper plate, two second guide rails, four second sliders, two displacement sensors, a linear bearing, a second bracket;

[0015] The upper plate is located directly above the bottom plate;

[0016] On the front and rear sides of the bottom surface of the upper plate, a horizontally distributed second guide rail is respectively fixed;

[0017] At the left and right ends of the bottom of each guide rail, a second slider is respectively installed;

[0018] At the bottom of each second slider, a second connecting plate is installed;

[0019] On the front and rear sides of the top surface of the upper plate, a first displacement sensor and a second displacement sensor horizontally distributed are respectively fixed;

[0020] The linear bearing is fixed to the top of the second bracket;

[0021] The second bracket is fixed to the top surface of the upper plate by bolts;

[0022] Among them, after the handle vertically passes through the linear bearing in the upper plate assembly, a triangular frame is fixedly connected to its lower end;

[0023] On the upper plate in the upper plate assembly, a long triangular frame up-and-down movement notch is opened;

[0024] The triangular frame passes through the triangular frame up-and-down movement notch;

[0025] Among them, the left telescopic block assembly includes a left telescopic block, a left side head, a guide cylinder and a first baffle;

[0026] The left telescopic block assembly and the right telescopic block assembly are spaced left and right;

[0027] The left telescopic block assembly and the right telescopic block assembly are installed at the position between the bottom plate and the upper plate;

[0028] The left head is fixed to the left side of the left telescopic block by bolts;

[0029] The left telescopic block is located at the top left end of the bottom plate;

[0030] On the front and back sides of the middle part of the right side of the left telescopic block, a laterally distributed guide cylinder is respectively fixedly arranged;

[0031] The first baffle is fixed by bolts in the gap between the upper part of the left head and the upper part of the left telescopic block;

[0032] The upper right end of the left telescopic block is fixedly connected to two adjacent second connecting plates by bolts;

[0033] The middle position of the lower right end of the left telescopic block is fixedly connected to an adjacent first connecting plate by bolts;

[0034] Among them, the right telescopic block assembly includes a right telescopic block, a right head, a guide rod and a second baffle;

[0035] The right telescopic block is located at the top right end of the bottom plate;

[0036] The right head is fixed to the right side of the right telescopic block by bolts;

[0037] On the front and back sides of the middle part of the left side of the right telescopic block, a laterally distributed guide rod is respectively fixedly arranged;

[0038] The two guide rods are arranged corresponding to the two guide cylinders;

[0039] Each guide rod is correspondingly nested into a guide cylinder;

[0040] The second baffle is fixed by bolts in the gap between the upper part of the right head and the upper part of the right telescopic block;

[0041] The upper left end of the right telescopic block is fixedly connected to two adjacent second connecting plates by bolts;

[0042] The middle position of the lower left end of the right telescopic block is fixedly connected to two adjacent first connecting plates by bolts.

[0043] Preferably, a limit block is installed at each of the left and right ends of the first guide rail.

[0044] Preferably, a first bracket is further provided at the middle position of the top of the bottom plate;

[0045] The first guide rail horizontally penetrates through the inner cavity of the first bracket;

[0046] A rubber pad is fixedly connected to the top of the first bracket by bolts.

[0047] Preferably, a spring is nested outside each guide rod, and the spring is located inside the guide cylinder into which the guide rod is nested;

[0048] The left and right ends of each spring are respectively in contact with the right side wall of the left telescopic block and the left side wall of the right telescopic block.

[0049] Preferably, the roller assembly includes two rollers and two roller brackets;

[0050] The remote ends of the two roller brackets are respectively installed on the right side wall of the left telescopic block and the left side surface of the right telescopic block;

[0051] One roller is respectively installed at the opposite ends of the two roller brackets;

[0052] The two rollers are located inside the triangular frame at the lower end of the handle;

[0053] Inside the two roller brackets, there are respectively hollow cavities, and the left and right side arms of the triangular frame pass through the two cavities from top to bottom;

[0054] In the upper middle parts of the left telescopic block and the right telescopic block, there are respectively a first long strip-shaped notch and a second long strip-shaped notch vertically distributed, which are respectively used to accommodate the left and right side arms of the triangular frame;

[0055] The first long strip-shaped notch and the second long strip-shaped notch are arranged corresponding to the up and down moving notch of the triangular frame, and are directly below the left and right ends of the up and down moving notch of the triangular frame.

[0056] Preferably, a long strip-shaped, horizontally distributed first moving opening groove is opened at the front side of the left end of the upper plate;

[0057] A long strip-shaped, horizontally distributed second moving opening groove is opened at the rear side of the right end of the upper plate;

[0058] The upper part of the first baffle vertically penetrates through the first moving opening groove;

[0059] The upper right side of the first baffle is in contact with the probe on the left side of the first displacement sensor;

[0060] The upper part of the second baffle vertically penetrates through the second moving opening groove;

[0061] The upper left side of the second baffle is in contact with the probe on the right side of the second displacement sensor.

[0062] Preferably, it further includes a housing installed on the upper part of the spring telescopic mechanism;

[0063] The housing includes an upper cover located above the upper plate assembly, and two support plates between the upper plate and the bottom plate;

[0064] The upper cover has a hollow structure;

[0065] Around the bottom of the upper cover, the upper plate is fixedly connected;

[0066] The two support plates are vertically distributed horizontally;

[0067] The two support plates are respectively located on the front and rear sides of the gap between the upper plate and the bottom plate;

[0068] The upper ends of the two support plates are respectively fixedly connected to the front and rear ends of the bottom surface of the upper plate;

[0069] The lower ends of the two support plates are respectively fixedly connected to the front and rear ends of the top surface of the bottom plate.

[0070] Preferably, a handle is fixedly provided at the top of the upper cover;

[0071] The upper part of the handle is located in the inner direction of the handle.

[0072] Preferably, it further includes a main control board and a handheld terminal;

[0073] The main control board includes: a microprocessor and a sensor data collector;

[0074] The data collection ends of the sensor data collector are respectively connected to the data output ends of the first displacement sensor and the second displacement sensor, and are used to collect the displacement values output by the first displacement sensor and the second displacement sensor, and then send them to the microprocessor;

[0075] The microprocessor is connected to the data output end of the sensor data collector, and is used to receive the displacement values of the first displacement sensor and the second displacement sensor sent by the sensor data collector, and then add them to the initial distance to obtain the shortest distance between the openings of the two brake rails.

[0076] Among them, the initial distance is: when holding the handle on the handheld housing and tightening the handle, the shortest distance between the left telescopic block and the right telescopic block after the spring contracts;

[0077] Among them, the displacement values output by the first displacement sensor and the second displacement sensor refer to: after the shortest distance between the left telescopic block and the right telescopic block, when the intelligent tester provided by the present invention is placed between the openings of the two brake rails of the reducer and the handle is released, the displacement values detected by the first displacement sensor and the second displacement sensor;

[0078] The microprocessor is further used to be connected to the handheld terminal through a wireless communication module, and is used to wirelessly send the shortest distance between the openings of the two brake rails to the handheld terminal.

[0079] Preferably, the first displacement sensor and the second displacement sensor are connected to the sensor data collector;

[0080] A sensor data collector is used to collect and display the displacement measured by the first displacement sensor and the second displacement sensor.

[0081] As can be seen from the technical solutions provided by the present invention above, compared with the prior art, the present invention provides an intelligent tester for measuring the shortest distance between the openings of two brake rails. Its structural design is scientific, and it can accurately and reliably measure the shortest distance between the openings of two brake rails, ensuring the measurement accuracy, and has great practical significance.

[0082] In addition, the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails can significantly reduce the workload of the staff during measurement and save valuable human resources. Brief Description of the Drawings

[0083] Figure 1 It is a schematic diagram of the position layout of two brake rails and the basic rail of an existing speed reducer;

[0084] Figure 2a It is a schematic sectional structure diagram of the spring telescopic mechanism in an intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails. At this time, the handle is in the lifted state;

[0085] Figure 2b It is a schematic diagram of the general assembly of an intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails;

[0086] Figure 3a It is a schematic diagram of the bottom view structure of the upper plate assembly in an intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails;

[0087] Figure 3b It is a schematic diagram of the top view structure of the upper plate assembly in an intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails.

[0088] Figure 4a It is a left side view of the spring telescopic mechanism in an intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails;

[0089] Figure 4b It is a right side view of the spring telescopic mechanism in an intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails;

[0090] Figure 4c It is a front view schematic diagram of the connection structure of the handle and the triangular frame connected thereto in the spring telescopic mechanism of an intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails;

[0091] Figure 4dIn the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails, a top view of the upper plate in the spring telescopic mechanism;

[0092] Figure 4e In the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails, a left view of the left telescopic block in the spring telescopic mechanism;

[0093] Figure 4f In the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails, a right view of the left telescopic block in the spring telescopic mechanism;

[0094] Figure 4g In the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails, a right view of the right telescopic block in the spring telescopic mechanism;

[0095] Figure 4h In the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails, a right view of the right telescopic block in the spring telescopic mechanism;

[0096] Figure 4i In the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails, a top view of the bottom plate in the spring telescopic mechanism;

[0097] Figure 5a In the intelligent tester provided by the present invention, a schematic top view of the connection structure between a roller and a bracket;

[0098] Figure 5b In the intelligent tester provided by the present invention, a schematic diagram of the position state of the spring telescopic mechanism when the handle is lowered;

[0099] Figure 6 In the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails, a schematic diagram of the positional relationship between the two brake rails and the basic rail of the existing speed reducer during specific test operations.

[0100] In the figure: 1 - bottom plate; 2 - limit block; 3 - first guide rail; 4 - first slider; 5 - first bracket;

[0101] 6 - rubber pad; 7 - first connecting plate; 8 - left end head; 9 - left telescopic block; 10 - guide cylinder;

[0102] 11 - first baffle; 12 - right end head; 13 - right telescopic block; 14 - second baffle 15 - guide rod;

[0103] 16 - Spring; 17 - Roller bracket; 18 - Roller; 19 - Upper plate; 201 - First displacement sensor; 202 is the second displacement sensor;

[0104] 21 - Second bracket 22 - Linear bearing; 23 - Handle; 24 - Second guide rail 25 - Second slider

[0105] 26 - Second connecting plate; 27 - Upper cover; 28 - Main control board; 29 - Support plate. Detailed implementation manner

[0106] To make the technical means for implementing the present invention easier to understand, the following further details the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, rather than limiting the application. Additionally, it should be noted that for the sake of description, only parts related to the present application are shown in the drawings.

[0107] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and embodiments.

[0108] It should be noted that in the description of the present application, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0109] In addition, it should be noted that in the description of the present application, unless otherwise clearly specified and limited, terms such as "installation" should be understood in a broad sense. For example, it can be fixedly installed or detachably installed.

[0110] For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0111] See Figures 2a to 6 , the present invention provides an intelligent tester for measuring the shortest distance between two brake rails openings, used for measuring the minimum distance (i.e., the shortest distance) between two brake rails of a vehicle retarder in a railway freight hump marshalling station, including a spring telescopic mechanism;

[0112] This spring telescopic mechanism includes: a bottom plate assembly, an upper plate assembly, a left telescopic block assembly, a right telescopic block assembly, a handle 23 and a roller assembly;

[0113] In the present invention, specifically, the bottom plate assembly includes a bottom plate 1, a first guide rail 3 and two first sliders 4;

[0114] Among them, two first guide rails 3 are horizontally distributed and located at the longitudinal middle position of the bottom plate 1;

[0115] The first guide rail 3 is fixed to the top of the bottom plate 1 by bolts;

[0116] At the left and right ends of the top of the first guide rail 3, a first slider 4 is respectively installed;

[0117] On the top of the first slider 4, a first connecting plate 7 is installed.

[0118] Specifically, at the left and right ends of the first guide rail 3, a limit block 2 is respectively installed.

[0119] Specifically, at the middle position of the top of the bottom plate 1, a first bracket 5 (a U-shaped or door frame-shaped structure with an opening downward) is further provided;

[0120] The first guide rail 3 horizontally penetrates through the inner cavity of the first bracket 5;

[0121] At the top of the first bracket 5, a rubber pad 6 is fixedly connected by bolts.

[0122] It should be noted that for the present invention, the first bracket 5 and the rubber pad 6 mainly play a supporting and buffering role for the handle (specifically, the lower part of the triangular frame 230 of the handle 23 contacts the rubber pad 6), because when the tester pulls up the handle and then releases it, the handle moves downward under the action of gravity, and the triangular frame 230 of the handle 23 will contact the rubber pad 6, and at this time, it plays a buffering role.

[0123] It should be noted that for the present invention, the function of the limit block 2 is to limit the movement of the first sliders 4 at both ends of the first guide rail 3, so that the first sliders 4 (driving the left telescopic block 9 and the right telescopic block 13 under the action of the spring 16) can only move within the range defined by the two first limit blocks 2. Among them, the lower ends of the left telescopic block 9 and the right telescopic block 13 are provided with U-shaped grooves (i.e., the first guide rail accommodation through groove 90 and the second guide rail accommodation through groove 130) with openings downward to avoid interference with the limit block 2 during movement.

[0124] In the present invention, specifically, the upper plate assembly includes: an upper plate 19, two second guide rails 24, four second sliders 25, two displacement sensors 20, a linear bearing 22, and a second bracket 21;

[0125] Among them, the upper plate 19 is located directly above the bottom plate 1;

[0126] Among them, on the front and rear sides of the bottom surface of the upper plate 19, a laterally distributed second guide rail 24 is respectively fixed;

[0127] At the left and right ends of the bottom of each guide rail 24, a second slider 25 is respectively installed.

[0128] At the bottom of each second slider 5, a second connecting plate 26 is installed.

[0129] Among them, on the front and rear sides of the top surface of the upper plate 19, a first displacement sensor 201 and a second displacement sensor 202 distributed horizontally are respectively fixed.

[0130] The linear bearing 22 is fixed on the top of the second bracket 21.

[0131] The second bracket 21 is fixed on the top surface of the upper plate 19 by bolts.

[0132] It should be noted that the second bracket 21 is a U-shaped or door frame-shaped structure with an opening downward.

[0133] In specific implementation, the first displacement sensor 201 and the second displacement sensor 202 are respectively fixed on the top surface of the upper plate 19 through their own brackets.

[0134] In the present invention, in specific implementation, after the handle 23 vertically passes through the linear bearing 22 (specifically through the inner ring) in the upper plate assembly, a triangular frame 230 is fixedly connected to its lower end.

[0135] In the upper plate 19 of the upper plate assembly, a horizontally distributed and elongated triangular frame vertical movement notch 231 is opened.

[0136] The triangular frame 230 penetrates through the triangular frame vertical movement notch 231.

[0137] The shape and size (including horizontal and vertical dimensions) of the triangular frame vertical notch 231 are larger than the shape and size of the triangular frame 230; therefore, the triangular frame 230 can drive by the handle 23, penetrate through the triangular frame vertical movement notch 231, and move up and down in the vertical direction along with the handle 23.

[0138] The triangular frame 230 is located directly above the first bracket 5 and the rubber pad 6 in the bottom plate assembly.

[0139] In the present invention, in specific implementation, the left telescopic block assembly includes a left telescopic block 9, a left side head 8, a guide cylinder 10 and a first baffle 11.

[0140] Among them, the left telescopic block assembly and the right telescopic block assembly are distributed at intervals left and right.

[0141] Among them, the left telescopic block assembly and the right telescopic block assembly are installed at the position between the bottom plate 1 and the upper plate 19.

[0142] Among them, the left side head 8 is fixed on the left side of the left telescopic block 9 by bolts.

[0143] The left telescopic block 9 is located at the left end of the top of the bottom plate 1;

[0144] It should be noted that the bottom of the left telescopic block 9 is not fixedly connected to the bottom plate 1, and the top of the left telescopic block 9 is not fixedly connected to the upper plate 19 either;

[0145] On the front and back sides of the middle part on the right side of the left telescopic block 9, a horizontally distributed guide cylinder 10 is fixedly arranged respectively;

[0146] The first baffle 11 is fixedly installed by bolts in the gap between the upper part of the left head 8 and the upper part of the left telescopic block 9;

[0147] The upper right end of the left telescopic block 9 is fixedly connected to two adjacent second connecting plates 26 by bolts;

[0148] The middle position at the lower right end of the left telescopic block 9 is fixedly connected to the adjacent first connecting plate 7 by bolts.

[0149] In the present invention, specifically in implementation, the right telescopic block assembly includes a right telescopic block 13, a right head 12, a guide rod 15 and a second baffle 4;

[0150] The right telescopic block 13 is located at the right end of the top of the bottom plate 1;

[0151] It should be noted that the bottom of the right telescopic block 13 is not fixedly connected to the bottom plate 1, and the top of the right telescopic block 13 is not fixedly connected to the upper plate 19 either;

[0152] The right head 12 is fixedly installed on the right side of the right telescopic block 13 by bolts;

[0153] On the front and back sides of the middle part on the left side of the right telescopic block 13, a horizontally distributed guide rod 13 is fixedly arranged respectively;

[0154] The two guide rods 13 are arranged corresponding to the two guide cylinders 10;

[0155] Each guide rod 13 is correspondingly nested into a guide cylinder 10;

[0156] The second baffle 14 is fixedly installed by bolts in the gap between the upper part of the right head 12 and the upper part of the right telescopic block 13;

[0157] The upper left end of the right telescopic block 13 is fixedly connected to two adjacent second connecting plates 26 by bolts;

[0158] The middle position at the lower left end of the right telescopic block 13 is fixedly connected to the adjacent first connecting plate 7 by bolts.

[0159] Specifically in implementation, outside each guide rod 15, a spring 16 is nested, and the spring 16 is located inside the guide cylinder 10 into which the guide rod 15 is nested;

[0160] At the left and right ends of each spring 16, they are respectively in contact with the right side wall of the left telescopic block 9 and the left side wall of the right telescopic block 13.

[0161] It should be noted that in the present invention, each first connecting plate 7 is respectively fixedly connected to the upper right end of the adjacent left telescopic block 9 or the upper left end of the right telescopic block 13 by bolts;

[0162] Each second connecting plate 26 is respectively fixedly connected to the lower right end of the adjacent left telescopic block 9 or the lower left end of the right telescopic block 13 by bolts.

[0163] It should be noted that in specific implementation, long-strip-shaped first guide rail accommodating through slots 90 are respectively reserved at the bottoms of the left telescopic block 9 and the right telescopic block 13 for the first guide rail 3 on the bottom plate 1 to pass through horizontally.

[0164] It should also be noted that in specific implementation, long-strip-shaped second guide rail accommodating through slots 130 are respectively reserved at the tops of the left telescopic block 9 and the right telescopic block 13 for the second guide rail 24 on the upper plate 19 to pass through horizontally.

[0165] It should also be noted that in the middle upper parts of the left telescopic block 9 and the right telescopic block 13, vertically distributed first long-strip-shaped notches 91 and second long-strip-shaped notches 131 are respectively provided for accommodating the left and right side arms of the triangular frame 230, so that the left and right side arms of the triangular frame 230 can move up and down.

[0166] The first long-strip-shaped notch 91 and the second long-strip-shaped notch 131 are arranged corresponding to the triangular frame up and down moving notch 231, and are directly below the left and right ends of the triangular frame up and down moving notch 231;

[0167] In the present invention, in specific implementation, a weight reduction hole 140 can be respectively provided at the lower parts of the front, back, left and right sides of the left telescopic block 9 and the right telescopic block 13, so as to reduce the overall weight of the tester of the present invention.

[0168] In the present invention, in specific implementation, the roller assembly includes two rollers 18 and two roller brackets 17;

[0169] At the far ends of the two roller brackets 17 away from each other, they are respectively installed on the right side wall of the left telescopic block 9 and the left side surface of the right telescopic block 13;

[0170] At the opposite ends of the two roller brackets 17, a roller 18 is respectively installed;

[0171] The two rollers 18 are located inside the triangular frame 230 at the lower end of the handle;

[0172] Inside the two roller brackets 17, there are respectively hollow cavities 170 (the cavities are located between the roller bracket 17 and the right side wall of the left telescopic block 9, or between the roller bracket 17 and the left side surface of the right telescopic block 13). The left and right side arms (i.e., the connecting columns on the left and right sides) of the triangular frame 230 pass through the two cavities 170 from top to bottom.

[0173] For the present invention, it can be known from Figure 5b that the roller 18 is located in the inner area of the triangular frame 230. Initially, the roller 18 is located at the upper parts of the left and right side arms of the triangular frame 230. When the handle 23 is pulled up, the two rollers 18 move left and right along the left and right side arms of the triangular frame 230 respectively. Thus, through the connection function of the roller bracket 17, the left telescopic block 9 and the right telescopic block 13 can be further driven to move inward. Finally, the roller 18 is located at the lower parts of the left and right side arms of the triangular frame 230 (such as Figure 2a the position shown); when the handle 23 is lowered, the left telescopic block 9 and the right telescopic block 13 move outward under the elastic force of the spring 16. At this time, the two rollers 18 finally return to the upper positions of the left and right side walls of the triangular frame 230 (such as Figure 5b the position shown).

[0174] In the present invention, specifically, at the front side of the left end of the upper plate 19, there is a long, horizontally distributed first moving opening groove 101;

[0175] At the rear side of the right end of the upper plate 19, there is a long, horizontally distributed second moving opening groove 102;

[0176] The upper part of the first baffle 11 vertically penetrates through the first moving opening groove 101;

[0177] The upper right side of the first baffle 11 is in contact with the probe on the left side of the first displacement sensor 201;

[0178] The upper part of the second baffle 14 vertically penetrates through the second moving opening groove 102;

[0179] The upper left side of the second baffle 14 is in contact with the probe on the right side of the second displacement sensor 202.

[0180] In the present invention, specifically, the intelligent tester of the present invention further includes a housing installed on the upper part of the spring telescopic mechanism;

[0181] The housing includes an upper cover 27 located above the upper plate assembly, and two support plates 29 between the upper plate 19 and the bottom plate 1;

[0182] The upper cover 27 is of a hollow structure;

[0183] The periphery of the bottom of the upper cover 27 is fixedly connected to the upper plate 19;

[0184] The two support plates 29 are vertically distributed horizontally.

[0185] The two support plates 29 are respectively located on the front and rear sides of the gap between the upper plate 19 and the bottom plate 1.

[0186] The upper ends of the two support plates 29 are respectively fixedly connected to the front and rear ends of the bottom surface of the upper plate 19.

[0187] The lower ends of the two support plates 29 are respectively fixedly connected to the front and rear ends of the top surface of the bottom plate 1.

[0188] It should be noted that through holes for facilitating the operation of the handle 23 are pre - opened on the upper cover 27.

[0189] It should also be noted that the left telescopic block assembly and the right telescopic block assembly are located between the two support plates 29.

[0190] Specifically, a handle 100 is fixedly arranged on the top of the upper cover 27.

[0191] The upper part of the handle 23 is located in the inner direction of the handle 100.

[0192] In the present invention, specifically, the intelligent tester provided by the present invention further includes a main control board 28.

[0193] Specifically, the main control board 28 can be installed on the inner wall of the upper cover 27.

[0194] Specifically, the main control board includes: a microprocessor and a sensor data collector.

[0195] The data acquisition ends of the sensor data collector are respectively connected to the data output ends of the first displacement sensor 201 and the second displacement sensor 202, and are used for acquiring the displacement values output by the first displacement sensor 201 and the second displacement sensor 202, and then sending them to the microprocessor.

[0196] The microprocessor is connected to the data output end of the sensor data collector, and is used for receiving the displacement values of the first displacement sensor 201 and the second displacement sensor 202 sent by the sensor data collector, and then adding them to the initial distance to obtain the shortest distance between the openings of the two brake rails.

[0197] Among them, the initial distance is: when holding the handle 100 on the housing 27 and pulling the handle 23 tightly, the shortest distance between the left telescopic block 9 and the right telescopic block 13 after the spring 16 contracts.

[0198] Among them, the displacement values output by the first displacement sensor 201 and the second displacement sensor 202 refer to: after the shortest distance exists between the left telescopic block 9 and the right telescopic block 13, when the intelligent tester provided by the present invention is placed between the openings of the two braking rails of the speed reducer and the handle 23 is released, the displacement values detected by the first displacement sensor 201 and the second displacement sensor 202 (i.e., the displacement amount composed of the two telescopic blocks).

[0199] Specifically, the intelligent tester provided by the present invention further includes a handheld terminal;

[0200] The microprocessor is connected to the handheld terminal through a wireless communication module (such as an existing Bluetooth module), and is used to wirelessly send the shortest distance between the two braking rail openings to the handheld terminal;

[0201] The handheld terminal is used to receive and display in real time the shortest distance between the two braking rail openings sent by the microprocessor.

[0202] Specifically, the handheld terminal can be an existing terminal such as a mobile phone or a tablet computer, which has a liquid crystal screen.

[0203] Specifically, the sensor data collector is an existing displacement sensor data collector (or data acquisition card), which is a common device in the art and will not be elaborated here.

[0204] Specifically, the microprocessor can be an existing microprocessor with data processing functions, which can be a programmable logic controller PLC, a central processing unit CPU, a digital signal processor DSP or a microcontroller MCU, which is a well-known technology in the art and will not be elaborated here.

[0205] In the present invention, specifically, it should be noted that the first displacement sensor 201 and the second displacement sensor 202 can be directly connected to the sensor data collector;

[0206] The sensor data collector is used to collect and display the displacement amounts measured by the first displacement sensor 201 and the second displacement sensor 202.

[0207] Therefore, for the staff, through the sensor data collector, the sum can be calculated based on the displacement amounts measured by the first displacement sensor 201 and the second displacement sensor 202 and the initial distance, and finally the shortest distance between the two braking rail openings can be obtained.

[0208] Among them, the initial distance is: when the handle 100 on the handheld housing 27 is held and the handle 23 is tightened, the shortest distance between the left telescopic block 9 and the right telescopic block 13 after the spring 16 contracts.

[0209] To more clearly understand the technical solution of the present invention, the working process of the present invention is described below.

[0210] First, hold the handle 100 on the handheld housing 27 and tighten the lifting handle 23. Driven by the triangular frame 230, the left telescopic block assembly and the right telescopic block assembly are respectively compressed inwardly against the spring 16 under the action of the roller assembly, and the spring 16 contracts. At this time, the distance L0 (initial length, i.e., initial distance) between the left telescopic block 9 and the right telescopic block 13. For a device of the present invention, this value of the distance L0 is fixed and can be obtained by pre-measurement;

[0211] Then, refer to Figure 6 As shown, for the tester of the present invention, in terms of specific operation, the left head 8 and the right head 12 are respectively in contact with the rail heads of the first brake rail 1000 and the second brake rail 2000 of the speed reducer, and the bottom plate 1 is placed on the upper part of the basic rail 3000.

[0212] As Figure 6 shown, the tester provided by the present invention is placed between the openings of the two brake rails of the speed reducer (i.e., the interval opening between two parallel brake rails). Among them, the left head 8 and the right head 12 are placed parallel to the two brake rails (that is to say, the outer directions of the left head 8 and the right head 12 of the tester are the two brake rails respectively). Then release the lifting handle 23. Under the action of the restoring elastic force of the compressed spring 16, the left telescopic block assembly and the right telescopic block assembly drive two displacement sensors (specifically through the first baffle 11 and the second baffle 14) to move outwardly (along the first moving opening groove 101 and the second moving opening groove 102) until the left head 8 and the right head 12 respectively contact the brake rails on both sides. The detection data (the displacement amounts of the two telescopic block assemblies) of the two displacement sensors are L1 and L2 respectively. The detection data can be transmitted to the main control board. The main control board processes the data (calculates the opening distance: L = L0 + L1 + L2), and then transmits the final result to the handheld terminal through Bluetooth transmission and displays it on the liquid crystal screen of the handheld terminal.

[0213] In the present invention, in terms of specific implementation, the tester of the present invention is mainly used for detecting the opening of the brake rails on the double-brake-rail speed reducer in the hump yard. The double-brake-rail speed reducer in the hump yard is an existing device. For example, it can be the T.JK4 / T.JK1-D type vehicle retarder produced by Tianjin Railway Signal Co., Ltd., or the T.JK3-B type vehicle retarder produced by China Academy of Railway Sciences Group Co., Ltd.

[0214] It should be noted that in the present invention, the two linear displacement sensors, namely the first displacement sensor 201 and the second displacement sensor 202, are used to detect the stroke of the telescopic arm thereon and transmit the detected displacement data to the main control board 28. The main control board 28 processes the data (that is, adds the displacement amounts detected by the first displacement sensor 201 and the second displacement sensor 202 to the initial distance between the left and right telescopic blocks after the spring is compressed), and wirelessly transmits the final processed data outward to the handheld terminal through the Bluetooth module for display on the handheld terminal.

[0215] The intelligent tester provided by the present invention mainly facilitates the hump yard personnel to measure the opening of the retarder, provides a certain reference basis for the adjustment of the retarder opening, and reduces the maintenance workload of the on-site staff.

[0216] Compared with the prior art, the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails has the following beneficial effects:

[0217] 1. High accuracy of test data;

[0218] 2. Test data can be automatically recorded and saved;

[0219] 3. Test data can be copied;

[0220] 4. Facilitates the measurement of the opening of the hump yard retarder and provides a reference basis for adjusting the opening size;

[0221] 5. Reduces the workload of the maintenance personnel in the hump yard.

[0222] In summary, compared with the prior art, the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails has a scientific structural design, can accurately and reliably measure the shortest distance between the openings of two brake rails, ensure the measurement accuracy, and has great practical significance.

[0223] In addition, the intelligent tester provided by the present invention for measuring the shortest distance between the openings of two brake rails can significantly reduce the workload of the staff during measurement and save valuable human resources.

[0224] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent tester for measuring the shortest distance between the openings of two brake rails, characterized in that, it includes a spring telescopic mechanism; the spring telescopic mechanism includes: a bottom plate assembly, an upper plate assembly, a left telescopic block assembly, a right telescopic block assembly, a handle (23) and a roller assembly; Among them, the bottom plate assembly includes a bottom plate (1), a first guide rail (3) and two first sliders (4); The first guide rail (3) is horizontally distributed and is located at the longitudinal middle position of the bottom plate (1); The first guide rail (3) is fixed to the top of the bottom plate (1) by bolts; At the left and right ends of the top of the first guide rail (3), a first slider (4) is respectively installed; On the top of each first slider (4), a first connecting plate (7) is installed; Among them, the upper plate assembly includes: an upper plate (19), two second guide rails (24), four second sliders (25), two displacement sensors (20), a linear bearing (22), a second bracket (21); The upper plate (19) is located directly above the bottom plate (1); On the front and rear sides of the bottom surface of the upper plate (19), a horizontally distributed second guide rail (24) is respectively fixed; At the left and right ends of the bottom of each second guide rail (24), a second slider (25) is respectively installed; On the bottom of each second slider (25), a second connecting plate (26) is installed; On the front and rear sides of the top surface of the upper plate (19), a first displacement sensor (201) and a second displacement sensor (202) which are horizontally distributed are respectively fixed; The linear bearing (22) is fixed to the top of the second bracket (21); The second bracket (21) is fixed to the top surface of the upper plate (19) by bolts; Among them, after the handle (23) vertically passes through the linear bearing (22) in the upper plate assembly, a triangular frame (230) is fixedly connected to its lower end; On the upper plate (19) in the upper plate assembly, a long strip-shaped triangular frame up-and-down movement notch (231) is opened; The triangular frame (230) passes through the triangular frame up-and-down movement notch (231); Among them, the left telescopic block assembly includes a left telescopic block (9), a left side head (8), a guide cylinder (10) and a first baffle (11); The left telescopic block assembly and the right telescopic block assembly are distributed at intervals left and right; The left telescopic block assembly and the right telescopic block assembly are installed at the position between the bottom plate (1) and the upper plate (19); The left side head (8) is fixed to the left side of the left telescopic block (9) by bolts; The left telescopic block (9) is located at the left end of the top of the bottom plate (1); On the front and rear sides of the middle part on the right side of the left telescopic block (9), a horizontally distributed guide cylinder (10) is respectively fixed; The first baffle (11) is fixed in the gap between the upper part of the left side head (8) and the upper part of the left telescopic block (9) by bolts; The upper right end of the left telescopic block (9) is fixedly connected to two adjacent second connecting plates (26) by bolts; At the middle position of the lower right end of the left telescopic block (9), it is fixedly connected to the adjacent first connecting plate (7) by bolts; Among them, the right telescopic block assembly includes a right telescopic block (13), a right side head (12), a guide rod (15) and a second baffle (14); The right telescopic block (13) is located at the right end of the top of the bottom plate (1); The right head (12) is fixed to the right side of the right telescopic block (13) by bolts; On the front and back sides of the middle part of the left side of the right telescopic block (13), a horizontally distributed guide rod (15) is respectively fixed; The two guide rods (15) are arranged corresponding to the two guide cylinders (10); Each guide rod (15) is correspondingly nested into a guide cylinder (10); The second baffle (14) is fixed by bolts in the gap between the upper part of the right head (12) and the upper part of the right telescopic block (13); The upper left end of the right telescopic block (13) is fixedly connected to the adjacent two second connecting plates (26) by bolts; The middle position of the lower left end of the right telescopic block (13) is fixedly connected to the adjacent first connecting plate (7) by bolts; Limit blocks (2) are respectively installed at the left and right ends of the first guide rail (3); A first bracket (5) is further provided at the middle position of the top of the bottom plate (1); The first guide rail (3) horizontally penetrates through the inner cavity of the first bracket (5); A rubber pad (6) is fixedly connected to the top of the first bracket (5) by bolts.

2. The intelligent tester for measuring the shortest distance between the openings of two brake rails according to claim 1, characterized in that, A spring (16) is nested outside each guide rod (15), and the spring (16) is located inside the guide cylinder (10) into which the guide rod (15) is nested; The left and right ends of each spring (16) are respectively in contact with the right side wall of the left telescopic block (9) and the left side wall of the right telescopic block (13).

3. The intelligent tester for measuring the shortest distance between the openings of two brake rails according to claim 1, characterized in that, The roller assembly includes two rollers (18) and two roller brackets (17); The far ends of the two roller brackets (17) are respectively installed on the right side wall of the left telescopic block (9) and the left side surface of the right telescopic block (13); One roller (18) is respectively installed at the opposite ends of the two roller brackets (17); The two rollers (18) are located inside the triangular frame (230) at the lower end of the handle; The two roller brackets (17) respectively have hollow cavities (170) inside, and the left and right side arms of the triangular frame (230) pass through the two cavities (170) from top to bottom; The upper middle parts of the left telescopic block (9) and the right telescopic block (13) respectively have vertically distributed first long strip-shaped slots (91) and second long strip-shaped slots (131) for accommodating the left and right side arms of the triangular frame (230); The first long strip-shaped slot (91) and the second long strip-shaped slot (131) are arranged corresponding to the up and down moving slot (231) of the triangular frame, and are directly below the left and right ends of the up and down moving slot (231) of the triangular frame.

4. The intelligent tester for measuring the shortest distance between the openings of two brake rails according to claim 1, characterized in that, A long strip-shaped, horizontally distributed first moving opening slot (101) is opened at the front side of the left end of the upper plate (19); A long strip-shaped, horizontally distributed second moving opening slot (102) is opened at the rear side of the right end of the upper plate (19); The upper part of the first baffle (11) vertically penetrates through the first moving opening slot (101); The upper right side of the first baffle (11) is in contact with the probe on the left side of the first displacement sensor (201); The upper part of the second baffle (14) vertically penetrates through the second moving opening slot (102); The upper left side of the second baffle (14) is in contact with the probe on the right side of the second displacement sensor (202).

5. The intelligent tester for measuring the shortest distance between the openings of two brake rails according to claim 1, characterized in that, it further includes a housing installed on the upper part of the spring telescopic mechanism; The housing includes an upper cover (27) located above the upper plate assembly, and two support plates (29) between the upper plate (19) and the bottom plate (1); The upper cover (27) is of a hollow structure; The periphery of the bottom of the upper cover (27) is fixedly connected to the upper plate (19); The two support plates (29) are horizontally and vertically distributed; The two support plates (29) are respectively located on the front and rear sides of the gap between the upper plate (19) and the bottom plate (1); The upper ends of the two support plates (29) are respectively fixedly connected to the front and rear ends of the bottom surface of the upper plate (19); The lower ends of the two support plates (29) are respectively fixedly connected to the front and rear ends of the top surface of the bottom plate (1).

6. The intelligent tester for measuring the shortest distance between the openings of two brake rails according to claim 5, characterized in that, A handle (100) is fixedly provided at the top of the upper cover (27); The upper part of the handle (23) is located in the inner direction of the handle (100).

7. The intelligent tester for measuring the shortest distance between the openings of two brake rails according to claim 1, characterized in that, it further includes a main control board (28) and a handheld terminal; The main control board includes: a microprocessor and a sensor data collector; The data acquisition ends of the sensor data collector are respectively connected to the data output ends of the first displacement sensor (201) and the second displacement sensor (202), and are used for acquiring the displacement values output by the first displacement sensor (201) and the second displacement sensor (202), and then sending them to the microprocessor; The microprocessor is connected to the data output end of the sensor data collector, and is used for receiving the displacement values of the first displacement sensor (201) and the second displacement sensor (202) sent by the sensor data collector, and then adding them to the initial distance to obtain the shortest distance between the openings of the two brake rails; Among them, the initial distance is: when holding the handle (100) on the upper cover (27) and tightening the handle (23), the shortest distance between the left telescopic block (9) and the right telescopic block (13) after the spring (16) contracts; Among them, the displacement values output by the first displacement sensor (201) and the second displacement sensor (202) refer to: after the shortest distance between the left telescopic block (9) and the right telescopic block (13), when the intelligent tester is placed between the openings of the two brake rails of the reducer and the handle (23) is released, the displacement values detected by the first displacement sensor (201) and the second displacement sensor (202). The microprocessor is also used to connect to the handheld terminal through a wireless communication module, and is used to wirelessly transmit the shortest distance between the openings of the two brake rails to the handheld terminal.

8. The intelligent tester for measuring the shortest distance between the openings of two brake rails according to claim 1, characterized in that the first displacement sensor (201) and the second displacement sensor (202) are connected to the sensor data collector; the sensor data collector is used to collect and display the displacement amounts measured by the first displacement sensor (201) and the second displacement sensor (202).

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