Rapid calibration device for railway wheel temperature detection equipment

Abstract

The utility model discloses a quick calibration device for railway wheel temperature detection equipment, which comprises a shell and a mounting rack, the mounting rack is provided with a clamping assembly used for fixing a plurality of railway wheel temperature infrared temperature sensors to be detected, one side of the shell is provided with a plurality of test holes, petal-shaped dustproof sleeves are fixedly sleeved in the test holes, and the petal-shaped dustproof sleeves are fixedly sleeved in the test holes. A blackbody radiation source is fixedly mounted in the shell, the mounting frame comprises a cross rod, two longitudinal rods are fixedly connected to the top of the cross rod, and the clamping assembly is mounted between the two longitudinal rods in a height-adjustable manner; according to the utility model, temperature calibration operation can be carried out on a plurality of infrared temperature sensors at the same time through the arranged clamping assembly, so that the calibration rate is effectively improved; and the device can be suitable for infrared temperature sensors with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature detection equipment calibration, and particularly relates to a rapid calibration device for railway wheel temperature detection equipment. Background Technique

[0002] Railway wheel temperature detection is an important measure to prevent wheel overheating. When the wheel temperature rises abnormally, it may damage the bearing strength and brake pad performance, and in severe cases, it may even cause axle fracture or rollover accidents. By timely and accurately detecting the wheel temperature, potential safety hazards can be discovered and handled in time, thus ensuring the safe operation of the train.

[0003] Infrared temperature sensors are widely used in ground monitoring systems, and the wheels are temperature measured by infrared sensors when the train passes through the monitoring point.

[0004] In order to ensure the accuracy of measurement data, infrared temperature sensors need to be calibrated before being put into use in batches.

[0005] For example, a device for calibrating the temperature of an infrared thermometer disclosed in a Chinese patent with the publication number CN212409884U includes a base, a first threaded rod, a fixed seat and a positioning pin. A blackbody radiation source is arranged above the right side of the base. A slider is arranged inside the chute. The lower end of the connecting column is connected to an adjusting block by a bearing. An adjusting ring is arranged outside the fixed seat. A clamping block is axially connected to the outside of the movable column, and a torsion spring is connected between the clamping block and the movable column. A limiting hole and a guiding groove are formed in the outer wall of the fixed seat. An extrusion block is arranged inside the adjusting ring, and a positioning pin penetrates through the adjusting ring. A second return spring is connected between the positioning pin and the adjusting ring.

[0006] The above device for calibrating the temperature of an infrared thermometer can quickly and stably clamp infrared thermometers of different sizes and models, so that the infrared thermometer can stably irradiate the blackbody radiation source, improving the calibration efficiency and accuracy of the device.

[0007] However, in actual use, the above device can only calibrate a single infrared temperature sensor at a time, with low efficiency. Moreover, the measurement ports of the existing blackbody radiation source housings are all open, and no corresponding protection facilities are provided. Dust from the outside easily enters the inside of the blackbody radiation source, and the accumulation of dust easily causes the temperature measured by the infrared temperature sensor to be inconsistent with the actual temperature of the blackbody radiation source, thereby affecting the accuracy of the calibration equipment.

[0008] Therefore, we propose a rapid calibration device for railway wheel temperature detection equipment. Content of the Utility Model

[0009] The purpose of the present utility model is to provide a rapid calibration device for railway wheel temperature detection equipment, thereby solving or at least alleviating one or more of the above problems and other problems existing in the prior art.

[0010] To achieve the above object, the main technical solutions adopted by the present utility model include:

[0011] A rapid calibration device for railway wheel temperature detection equipment, comprising a housing and a mounting rack. A clamping assembly for fixing a plurality of railway wheel temperature infrared sensors to be measured is arranged on the mounting rack. A plurality of test holes are formed on one side of the housing, and petal-shaped dust-proof sleeves are fixedly sleeved in the test holes. A blackbody radiation source is fixedly installed inside the housing.

[0012] In a rapid calibration device for railway wheel temperature detection equipment according to the present utility model, wherein, the mounting rack includes a cross bar, and a vertical bar is fixedly connected to the top of the cross bar. There are two vertical bars, and the clamping assembly is installed between the two vertical bars with adjustable height.

[0013] In a rapid calibration device for railway wheel temperature detection equipment according to the present utility model, wherein, both ends of the bottom of the housing are fixedly connected with slide rails, and both ends of the cross bar are fixedly connected with guide insertion rods. One end of the guide insertion rod is slidably inserted into the slide rail.

[0014] In a rapid calibration device for railway wheel temperature detection equipment according to the present utility model, wherein, the clamping assembly includes a lower clamping frame and an upper clamping frame;

[0015] The lower clamping frame includes a lower cross plate, and a plurality of lower arc-shaped seats are formed on the top of the lower cross plate;

[0016] The upper clamping frame includes an upper cross plate, and upper arc-shaped seats corresponding to the lower arc-shaped seats one by one are formed on the bottom of the upper cross plate. The upper cross plate is arranged above the lower cross plate;

[0017] Both ends of the lower cross plate are fixedly connected with sliders, and chutes are formed on both vertical bars. The sliders are slidably arranged in the chutes;

[0018] A pull rod is fixedly connected to the upper cross plate. The lower end of the pull rod slidably penetrates through the lower cross plate and is fixedly connected with a baffle. A spring is sleeved on the lower end of the pull rod. The top of the spring abuts against the bottom of the lower cross plate, and the top of the spring presses on the top of the baffle.

[0019] In a quick calibration device for a railway wheel temperature detection device according to the present utility model, one end of a longitudinal rod is rotatably and threadedly installed with a second handle screw, and the lower end of the second handle screw extends into the chute and is rotatably connected to the top of the slider.

[0020] In a quick calibration device for a railway wheel temperature detection device according to the present utility model, two pull rods are provided, and a handle is fixedly connected between the tops of the two pull rods.

[0021] In a quick calibration device for a railway wheel temperature detection device according to the present utility model, anti-slip pads are fixedly connected to the inner walls of the lower arc-shaped seat and the upper arc-shaped seat.

[0022] In a quick calibration device for a railway wheel temperature detection device according to the present utility model, a third handle screw for locking the pull rod on the lower cross plate is rotatably and threadedly installed on the lower cross plate.

[0023] In a quick calibration device for a railway wheel temperature detection device according to the present utility model, a first handle screw for locking the guiding insertion rod on the slide rail is rotatably and threadedly installed on one side of the slide rail.

[0024] In a quick calibration device for a railway wheel temperature detection device according to the present utility model, an anti-slip rubber pad is fixedly adhered to the bottom of the slide rail.

[0025] The present utility model at least has the following beneficial effects:

[0026] By providing the clamping assembly, the present utility model can simultaneously perform temperature calibration operations on multiple infrared temperature sensors, effectively improving the calibration rate; moreover, it can be applicable to infrared temperature sensors of different sizes.

[0027] By providing the slide rail and the guiding insertion rod, the infrared temperature sensor on the clamping assembly can accurately extend into the corresponding test hole, and when not in use, the guiding insertion rod can be locked in the slide rail by the first handle screw, which is convenient for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0029] Figure 1 It is a schematic structural diagram of a quick calibration device for a railway wheel temperature detection device according to the present utility model;

[0030] Figure 2This is a partial structural schematic diagram of the rapid calibration device for the railway wheel temperature detection equipment of the present utility model;

[0031] Figure 3 This is a structural schematic diagram of the mounting rack of the present utility model;

[0032] Figure 4 This is a structural schematic diagram of the lower clamping rack of the present utility model;

[0033] Figure 5 This is a structural schematic diagram of the upper clamping rack of the present utility model;

[0034] Figure 6 It is Figure 1 The enlarged structural schematic diagram of part A in

[0035] Figure 7 This is a sectional structural schematic diagram of the housing of the present utility model.

[0036] Explanation of the reference numerals in the drawings:

[0037] 1. Housing; 101. Test hole; 102. Petal-shaped dustproof cover; 103. Slide rail; 104. Anti-slip rubber pad; 105. First handle screw; 106. Blackbody radiation source;

[0038] 2. Mounting rack; 201. Cross bar; 202. Longitudinal bar; 203. Chute; 204. Guide insertion rod;

[0039] 3. Lower clamping rack; 301. Lower horizontal plate; 302. Lower arc-shaped seat; 303. Slide block;

[0040] 4. Upper clamping rack; 401. Upper horizontal plate; 402. Upper arc-shaped seat; 403. Pull rod; 404. Handle; 405. Baffle; 406. Spring;

[0041] 5. Second handle screw;

[0042] 6. Third handle screw. Detailed implementation manners

[0043] The following will detail the implementation manners of the present application in conjunction with the drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly.

[0044] Please refer to Figures 1 to 7As shown, this embodiment provides a rapid calibration device for railway wheel temperature detection equipment, including a shell 1 and a mounting frame 2, the mounting frame 2 is provided with a clamping assembly for fixing multiple railway wheel temperature infrared temperature sensors to be tested, a plurality of test holes 101 are opened on one side of the shell 1, and a petal-shaped dust cover 102 is fixedly sleeved in the test hole 101. The petal-shaped dust cover 102 can effectively prevent external dust from entering the shell 1, and a black body radiation source 106 is fixedly installed inside the shell 1.

[0045] In this embodiment, the mounting frame 2 includes a cross bar 201, both ends of the bottom of the housing 1 are fixedly connected to the slide rails 103, both ends of the cross bar 201 are fixedly connected to the guide rods 204, one end of the guide rod 204 is slidably inserted in the slide rail 103, the top of the cross bar 201 is fixedly connected to the longitudinal rod 202, two longitudinal rods 202 are provided, and the clamping assembly is height-adjustably mounted between the two longitudinal rods 202, wherein the clamping assembly includes a lower clamping frame 3 and an upper clamping frame 4;

[0046] The lower clamping frame 3 includes a lower horizontal plate 301, and a plurality of lower arc seats 302 are formed on the top of the lower horizontal plate 301;

[0047] The upper clamping frame 4 includes an upper horizontal plate 401, and an upper arc seat 402 corresponding to the lower arc seat 302 is formed at the bottom of the upper horizontal plate 401. The upper horizontal plate 401 is arranged above the lower horizontal plate 301, and the inner wall of the lower arc seat 302 and the inner wall of the upper arc seat 402 are fixedly connected with anti-slip pads to prevent the infrared temperature sensor from sliding off the lower horizontal plate 301;

[0048] Both ends of the lower horizontal plate 301 are fixedly connected with sliders 303, and the two longitudinal rods 202 are provided with slide grooves 203, and the sliders 303 are slidably arranged in the slide grooves 203;

[0049] A pull rod 403 is fixedly connected to the upper horizontal plate 401, and the lower end of the pull rod 403 slides through the lower horizontal plate 301 and is fixedly connected to a baffle 405. A spring 406 is sleeved on the lower end of the pull rod 403, and the top of the spring 406 abuts against the bottom of the lower horizontal plate 301, and the top of the spring 406 presses on the top of the baffle 405;

[0050] In this embodiment, a second handle screw 5 is rotatably mounted on the upper end of one of the longitudinal rods 202 , and the lower end of the second handle screw 5 extends into the interior of the slide slot 203 and is rotatably connected to the top of the slider 303 .

[0051] By adopting the above technical solution, during use, the pull rod 403 is lifted upward to move the upper cross plate 401 upward. At this time, the spring 406 is compressed. Then, the infrared temperature sensor is placed on the lower arc seat 302, and then the pull rod 403 is released. At this time, the upper cross plate 401 moves downward under the elastic force of the spring 406, so that the upper arc seat 402 presses on the infrared temperature sensor. Then, according to the position of the probe of the current infrared temperature sensor, the height of the lower cross plate 301 is adjusted by rotating the second handle screw 5, so that the position of the probe of the infrared temperature sensor is aligned with the test hole 101. Generally, for infrared temperature sensors of the same batch, the height of the lower cross plate 301 only needs to be adjusted once. Then, the mounting bracket 2 is pushed toward the housing 1, and the sensing head of the infrared temperature sensor is extended into the housing 1 for calibration testing.

[0052] In this embodiment, two pull rods 403 are provided, and a handle 404 is fixedly connected between the tops of the two pull rods 403. By providing two pull rods 403, it can be ensured that the upper cross plate 401 can move up and down smoothly. By providing the handle 404, it is convenient to lift the pull rod 403.

[0053] A third handle screw 6 for locking the pull rod 403 on the lower cross plate 301 is rotationally installed on the lower cross plate 301 by threads. With this setting, when multiple infrared temperature sensors need to be installed on the clamping assembly, first lift the pull rod 403 upward to move the upper cross plate 401 upward, and then rotate the third handle screw 6 to fix the pull rod 403. At this time, the pull rod 403 can be released. When the infrared temperature sensor is placed properly, the third handle screw 6 is released. At this time, the upper cross plate 401 moves downward under the elastic force of the spring 406, so that the upper arc seat 402 presses on the infrared temperature sensor.

[0054] In this embodiment, a first handle screw 105 for locking the guide plug 204 on the slide rail 103 is rotationally installed on one side of the slide rail 103 by threads. With this setting, after use, the mounting bracket 2 is pushed toward the housing 1, so that the guide plug 204 is completely inserted into the slide rail 103, and then the first handle screw 105 is tightened to store the mounting bracket 2.

[0055] An anti-slip rubber pad 104 is fixedly bonded to the bottom of the slide rail 103. With this setting, the housing 1 can be placed more stably.

[0056] To facilitate the understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0057] Working principle: When in use, lift the baffle 405 upward to move the upper cross plate 401 upward. At this time, the spring 406 is compressed. Then rotate the third handle screw 6 to fix the pull rod 403. Then place multiple infrared temperature sensors on different lower arc seats 302. Then loosen the third handle screw 6. At this time, the upper cross plate 401 moves downward under the elastic force of the spring 406, so that the upper arc seat 402 presses on the infrared temperature sensor. Then, according to the position of the probe of the current infrared temperature sensor, adjust the height of the lower cross plate 301 by rotating the second handle screw 5, so that the position of the probe of the infrared temperature sensor is aligned with the test hole 101. Generally, for infrared temperature sensors of the same batch, the height of the lower cross plate 301 only needs to be adjusted once. Then push the mounting bracket 2 in the direction close to the housing 1, and extend the sensing head of the infrared temperature sensor into the housing 1 for calibration testing.

[0058] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And the changes and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A rapid calibration device for railway wheel temperature detection equipment, characterized in that: The invention comprises a housing (1) and a mounting frame (2), wherein the mounting frame (2) is provided with a clamping assembly for fixing a plurality of railway wheel temperature infrared temperature sensors to be tested, a plurality of test holes (101) are provided on one side of the housing (1), a petal-shaped dust cover (102) is fixedly sleeved in the test hole (101), and a black body radiation source (106) is fixedly installed inside the housing (1).

2. A rapid calibration device for railway wheel temperature detection equipment according to claim 1, characterized in that: The mounting frame (2) comprises a crossbar (201), the top of the crossbar (201) is fixedly connected to a longitudinal bar (202), two longitudinal bars (202) are provided, and the clamping assembly is installed between the two longitudinal bars (202) in a height-adjustable manner.

3. A rapid calibration device for railway wheel temperature detection equipment according to claim 2, characterized in that: Both ends of the bottom of the housing (1) are fixedly connected to slide rails (103), and both ends of the cross bar (201) are fixedly connected to guide plug rods (204), and one end of the guide plug rod (204) is slidably inserted into the slide rail (103).

4. A rapid calibration device for railway wheel temperature detection equipment according to claim 3, characterized in that: The clamping assembly comprises a lower clamping frame (3) and an upper clamping frame (4); The lower clamping frame (3) comprises a lower transverse plate (301), and a plurality of lower arc seats (302) are formed on the top of the lower transverse plate (301); The upper clamping frame (4) comprises an upper transverse plate (401), the bottom of the upper transverse plate (401) is formed with an upper arc-shaped seat (402) corresponding to the lower arc-shaped seat (302) one by one, and the upper transverse plate (401) is arranged above the lower transverse plate (301); Both ends of the lower horizontal plate (301) are fixedly connected with sliders (303), and both longitudinal rods (202) are provided with sliding grooves (203), and the sliders (303) are slidably arranged in the sliding grooves (203); A pull rod (403) is fixedly connected to the upper horizontal plate (401), and the lower end of the pull rod (403) slides through the lower horizontal plate (301) and is fixedly connected to a baffle (405). A spring (406) is sleeved on the lower end of the pull rod (403), and the top of the spring (406) is against the bottom of the lower horizontal plate (301), and the top of the spring (406) is pressed against the top of the baffle (405).

5. A rapid calibration device for railway wheel temperature detection equipment according to claim 4, characterized in that: A second handle screw (5) is threadedly mounted on the upper end of one of the longitudinal rods (202), and the lower end of the second handle screw (5) extends into the interior of the slide groove (203) and is rotatably connected to the top of the slide block (303).

6. A rapid calibration device for railway wheel temperature detection equipment according to claim 5, characterized in that: Two pull rods (403) are provided, and a handle (404) is fixedly connected between the tops of the two pull rods (403).

7. A rapid calibration device for railway wheel temperature detection equipment according to claim 6, characterized in that: The inner wall of the lower arc-shaped seat (302) and the inner wall of the upper arc-shaped seat (402) are both fixedly connected with anti-slip pads.

8. A rapid calibration device for railway wheel temperature detection equipment according to claim 7, characterized in that: A third handle screw (6) is threadably mounted on the lower transverse plate (301) and is used to lock the pull rod (403) on the lower transverse plate (301).

9. A rapid calibration device for railway wheel temperature detection equipment according to claim 3, characterized in that: A first handle screw (105) for locking the guide rod (204) on the slide rail (103) is threadedly rotatably mounted on one side of the slide rail (103).

10. A rapid calibration device for railway wheel temperature detection equipment according to claim 8, characterized in that: An anti-skid rubber pad (104) is fixedly bonded to the bottom of the slide rail (103).

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