Hall induction type rail train speedometer calibration device

Abstract

The utility model discloses a Hall induction type rail train speedometer calibration device, which comprises at least one set of detection assembly, and the detection assembly comprises a gear, a mounting seat and a base. The mounting seat is close to the edge of the gear, the mounting seat is in sliding fit with the base, the distance between the mounting seat and the edge of the gear can be changed by sliding the mounting seat on the base, the mounting seat is provided with a through hole, and the through hole is used for mounting a sensor to be detected. The device not only can independently test the sensor, but also can test the whole body after the Hall induction type sensor is connected with the speedometer, and is suitable for detecting the sensors of the train speedometers with different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measurement and detection, especially relates to a hall induction formula rail train speedometer calibration device. BACKGROUND

[0002] The hall induction formula rail train speedometer is the instrument for measuring train speed, and the speedometer is installed on the train driver's console, and the hall induction formula speed sensor matched with the speedometer is installed on the wheel shaft end, and the train speed value is displayed through the speedometer, and the hall induction formula rail train speedometer is widely used in rail transportation. The existing detection of the hall induction formula rail train speedometer can only detect the hall induction formula sensor or the speed display instrument, cannot simulate and test the whole after connecting the hall induction formula sensor with the speedometer, and cannot detect the parameters required in TB / T 2760.2-2016 "Rolling stock speed sensor Part 2: Hall speed sensor". SUMMARY

[0003] The utility model discloses a hall induction formula rail train speedometer calibration device, not only can test the sensor alone, can also test the whole after connecting the hall induction formula sensor with the speedometer, and is suitable for detecting the sensor of different specifications of train speedometer.

[0004] A hall induction formula rail train speedometer calibration device, including at least one detection assembly, the detection assembly includes: gear, mounting seat, base, the mounting seat is close to the edge of the gear, the mounting seat with the base sliding fit, the distance between the mounting seat and the edge of the gear can be changed by sliding the mounting seat on the base, the mounting seat is equipped with the through hole, and the through hole is used for installing the sensor to be measured.

[0005] In one embodiment, the mounting seat is provided with a convex portion, the base is provided with a sliding groove, and the convex portion is slidably inserted into the sliding groove.

[0006] In one embodiment, the side wall of the sliding groove is provided with a locking screw hole and a locking screw, and the locking screw is screwed into the locking screw hole to press and lock the convex portion.

[0007] In one embodiment, the mounting seat is provided with a mounting hole, and the mounting hole is located near the through hole.

[0008] In one embodiment, the gear cover is provided with a protective cover, the protective cover is provided with a test window, and the through hole is aligned with the test window.

[0009] In one of the embodiments, the Hall induction type rail train speedometer calibration device further comprises a meter mounting seat provided with a placing groove.

[0010] In one of the embodiments, the Hall induction type rail train speedometer calibration device further comprises a PC, a test controller connected with the PC and a driving device connected with the test controller, the driving device being connected with the rotating shaft of the gear.

[0011] In one of the embodiments, the test controller is provided with a first electrical socket and a second electrical socket, the first electrical socket being used for inserting the output plug of the sensor to be tested, and the second electrical socket being used for inserting the plug of the meter to be tested.

[0012] In one of the embodiments, the Hall induction type rail train speedometer calibration device comprises two sets of detection assemblies, the gears in the two sets of detection assemblies being coaxially arranged, and the mounting seats in the two sets of detection assemblies being circumferentially staggered.

[0013] In one of the embodiments, the gears in the two sets of detection assemblies are different in the number of teeth.

[0014] Compared with the prior art, the Hall induction type rail train speedometer calibration device and method have the following advantages:

[0015] 1. The Hall induction type rail train speedometer calibration device can be applied to the detection of sensors of different specifications of train speedometers through the sliding cooperation of the mounting seat and the base, and the selection of rulers with different thicknesses, and has good versatility.

[0016] 2. The Hall induction type rail train speedometer calibration device can test the meter and the sensor separately, or test the sensor and the meter after they are assembled.

[0017] 3. The Hall induction type rail train speedometer calibration device can independently test the Hall induction type speed sensor, simulate the pulse duty ratio, the rising / falling edge current / voltage change rate, the pulse phase difference and other parameters under the field operation condition, and detect whether the performance meets the requirements; the Hall induction type rail train speedometer calibration device can test the Hall induction type speed sensor and the display meter as a whole, and detect whether the speed and the mileage meet the requirements.

[0018] The utility model will become more clear through the following description and combining with the drawings, these drawings are used for explaining the embodiments of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 is a three-dimensional structure schematic diagram of a Hall induction type rail train speedometer calibration device according to an embodiment of the present application;

[0021] Figure 2 is a structure schematic diagram of the back of a Hall induction type rail train speedometer calibration device according to an embodiment of the present application;

[0022] Figure 3 is a partial enlarged structure schematic diagram of a Hall induction type rail train speedometer calibration device according to an embodiment of the present application;

[0023] Figure 4 is Figure 3 an enlarged view of A in FIG.

[0024] Figure 5 is Figure 3 an enlarged view of B in FIG.

[0025] Figure 6 is a structure schematic diagram of the mounting seat and base of one set of detection components according to an embodiment of the present application;

[0026] Figure 7 is a structure schematic diagram of the mounting seat and base of another set of detection components according to an embodiment of the present application;

[0027] Figure 8 is a structure schematic diagram of the instrument and meter mounting seat according to an embodiment of the present application.

[0028] Wherein, 10a, 10b, detection component, 11a, 11b, gear, 12a, 12b, mounting seat, 13a, 13b, base, 14a, 14b, through hole, 15a, 15b, convex part, 16a, 16b, sliding groove, 17a, 17b, locking screw hole, 18a, 18b, locking screw, 19a, 19b, mounting hole, 20, protective cover, 21a, 22b, test window, 23, meter mounting seat, 24, placing groove, 25, PC, 26, test controller, 27, driving device, 28, first electrical socket, 29, second electrical socket, 30, operation table, 31, instrument to be measured. DETAILED DESCRIPTION

[0029] Embodiments of the present application will now be described with reference to the accompanying drawings.

[0030] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external" "front end", "rear end" "both ends", "one end", "the other end" and so on indicate the direction or position relation is based on the direction or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular direction, with a particular direction structure and operation, therefore cannot be understood as the limitation of the utility model. In addition, the term "test", "display" is only used for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the term "installation", "set with", "connection" and so on, should be broad understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0032] The utility model discloses a hall induction formula rail train speedometer calibration device, including at least one detection assembly. Figures 1 to 8 As shown in the figure, the embodiment includes two sets of detection assembly hall induction formula rail train speedometer calibration device. One set of detection device is used for detecting the sensor to be measured, and the other set of detection device is used for detecting the instrument.

[0033] As shown in the figure, Figure 3 、 4 , 6 shows that the detection assembly 10a includes: gear 11a, mounting seat 12a, base 13a;The edge of mounting seat 12a is close to gear 11a, and mounting seat 12a and base 13a are slidingly matched, the distance between mounting seat 12a and the edge of gear 11a can be changed by sliding mounting seat 12a on base 13a, and mounting seat 12a is provided with through hole 14a, and through hole 14a is used to install the sensor to be measured. Mounting seat 12a is provided with mounting hole 19a, and mounting hole 19a is located near through hole 14a.

[0034] The mounting seat 12a is provided with a protrusion 15a, the base 13a is provided with a sliding groove 16a, and the protrusion 15a is slidingly inserted into the sliding groove 16a. The side wall of the sliding groove 16a is provided with a locking screw hole 17a and a locking screw 18a, and the locking screw 18a is screwed into the locking screw hole 17a to tightly lock the protrusion 15a. When detecting, the sensor to be detected is inserted into the passing hole 14a, a 1mm plug gauge is selected between the gear 11a and the sensor probe sensing end face, the locking screw 18a is loosened, the mounting seat 12a is slid, the sensor probe sensing end face is attached to the plug gauge, and the plug gauge is taken out. At this time, the distance between the sensing end face and the gear 11a is 1mm. The sensor to be detected is screwed on the mounting hole 19a with a screw. Through the sliding cooperation of the mounting seat 12a and the base 13a, and the selection of plug gauges with different thicknesses, the sensor of different specifications of the train speed meter can be detected, and the universality is good.

[0035] As shown in Figure 3 、 5 , 7, the detection assembly 10b includes: a gear 11b, a mounting seat 12b, and a base 13b; the mounting seat 12b is close to the edge of the gear 11b, the mounting seat 12b and the base 13b are slidingly matched, and the sliding mounting seat 12b on the base 13b can change the distance between the mounting seat 12b and the edge of the gear 11b. The mounting seat 12b is provided with a passing hole 14b, and the passing hole 14b is used for installing the sensor to be detected. The mounting seat 12b is provided with a mounting hole 19b near the passing hole 14b. The sensor to be detected is inserted into the passing hole 14b, and the sensor is screwed on the mounting hole 19b with a screw.

[0036] The mounting seat 12b is provided with a protrusion 15b, and the base 13b is provided with a sliding groove 16b, and the protrusion 15b is slidingly inserted into the sliding groove 16b. The side wall of the sliding groove 16b is provided with a locking screw hole 17b and a locking screw 18b, and the locking screw 18b is screwed into the locking screw hole 17b to tightly lock the protrusion 15b. The mounting seat 12b and the base 13b are similar to the detection assembly 10a, and will not be described again.

[0037] The mounting holes 19a and 19b can be threaded holes or light holes. In the embodiment, a plurality of groups of mounting holes are arranged around each through hole, each group including a plurality of mounting holes, and the groups of mounting holes can be designed to have different diameters and different hole diameters to adapt to the installation of sensors of different specifications. However, the mounting holes 19a and 19b can also be long holes to adapt to the installation of sensors of different specifications. The axis of the through hole is aligned with the center line of the gear, the sliding path of the mounting seat relative to the base is perpendicular to the axis of the gear, the sensor is inserted into the through hole for installation, the center of the sensor is aligned with the gear, and when the mounting seat slides on the base, the center of the sensor is parallel to the edge of the gear and approaches or moves away from the edge, so that the sensor is always aligned with the gear and the testing effect of the sensor is ensured.

[0038] In the embodiment, the speedometer is divided into a sensor and a meter, and the detection assembly 10a is used for detecting the sensor in the speedometer. The detection assembly 10b is used for detecting the meter in the speedometer or detecting the combination of the sensor and the meter.

[0039] The gears 11a and 11b are covered with a protective cover 20, the protective cover 20 is provided with test windows 21a and 22b, the through hole 14a is aligned with the test window 21a, and the through hole 14b is aligned with the test window 22b. The protective cover 20 is used for positioning and protecting the gears 11a and 11b to ensure the stability of the gears 11a and 11b during testing.

[0040] As shown in Figure 1 , 8 , the Hall induction type rail train speedometer calibration device further includes a meter mounting seat 23 provided with a placing groove 24, the meter mounting seat 23 is used for placing the meter to be detected, the meter is placed in the placing groove 24, the placing groove 24 is in the shape of a circular arc, the arc-shaped opening faces upward, different types of meters can be placed in the placing groove 24, and the meters can be temporarily stabilized under the constraint of the circular arc, so that the meters of different types can be tested.

[0041] In the embodiment, two sets of detection assemblies are included, the gears 11a and 11b in the two sets of detection assemblies 10a and 10b are coaxially arranged, and the mounting seats 12a and 12b in the two sets of detection assemblies 10a and 10b are staggered on the circumference. Figure 1 , 2 As shown in , the Hall induction type rail train speedometer calibration device further includes an operation table 30, a PC 25, a test controller 26 connected with the PC, and a driving device 27 connected with the test controller, the driving device 27 is connected with the rotating shaft of the gear. The detection assemblies 10a and 10b, the meter mounting seat 23, the PC 25, the test controller 26, and the driving device 27 are all installed on the operation table 30.

[0042] The test controller 27 is provided with a first electrical socket 28 for inserting the output plug of the sensor to be tested and a second electrical socket 29 for inserting the plug of the instrument to be tested.

[0043] The display screen and input buttons of the PC 25 are arranged on the tabletop of the operation table 30, and the first electrical socket 28 and the second electrical socket 29 are arranged on the operation table 30 close to the detection assemblies 10a, 10b, so as to facilitate the wiring connection.

[0044] During the detection, the sensor to be tested and the instrument to be tested are separated, the sensor to be tested is installed on the detection assembly 10a, the plug of the sensor to be tested is inserted into the first electrical socket 28, the detection parameters are set on the PC 25, and the driving device 27 drives the gear 10a to rotate, so as to realize the measurement of the pulse duty ratio, the rising / falling edge current / voltage change rate, the pulse phase difference and other parameters of the Hall type pulse sensor.

[0045] The standard sensor is installed on the detection assembly 10b, the instrument to be tested is arranged on the meter mounting seat 23, the standard sensor and the instrument to be tested are connected, the plug of the instrument to be tested is inserted into the second electrical socket 29, the detection parameters are set on the PC 25, and the driving device 27 drives the gear 10b to rotate, so as to realize the measurement of the speed and the mileage and other parameters of the instrument within the set speed range.

[0046] The sensor to be tested and the instrument to be tested can also be connected to perform the overall detection.

[0047] Preferably, the gears 11a, 11b in the two sets of detection assemblies 10a, 10b are different in the number of teeth, corresponding to the different detection methods of the sensor and the instrument.

[0048] The utility model has been described above in combination with the best embodiment, but the utility model is not limited to the above disclosed embodiments, and should cover various modifications, equivalent combinations according to the essence of the utility model.

Claims

1. A Hall effect rail vehicle speedometer calibration device, characterized by, The detection assembly comprises a gear, a mounting seat and a base. The mounting seat is close to the edge of the gear, and the mounting seat and the base are in sliding fit.

2. The Hall-effect rail vehicle speedometer calibration device of claim 1, wherein, The mounting seat is provided with a protrusion, and the base is provided with a sliding groove.

3. The Hall-effect rail vehicle speedometer calibration device of claim 2, wherein, The side wall of the sliding groove is provided with a locking screw hole and a locking screw.

4. The Hall-effect railcar speedometer calibration device of claim 1, wherein, The mounting seat is provided with a mounting hole near the through hole.

5. The Hall-effect railcar speedometer calibration device of claim 1, wherein, The gear cover is provided with a protective cover, and the protective cover is provided with a test window.

6. The Hall-effect railcar speedometer calibration device of claim 1, wherein, The watch mounting seat is provided with a placing groove.

7. The Hall-effect railcar speedometer calibration device of claim 1, wherein, The test controller is provided with a first electrical socket and a second electrical socket.

8. The Hall-effect rail vehicle speedometer calibration device of claim 7, wherein, The first electrical socket is used for inserting the output plug of the sensor to be tested.

9. The Hall-effect rail vehicle speedometer calibration device of any one of claims 1-8, wherein, The two detection assemblies are coaxially arranged.

10. The Hall-effect railcar speedometer calibration device of claim 9, wherein, The mounting seats of the two detection assemblies are circumferentially staggered. The gears of the two detection assemblies are different in tooth number.

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