Inspection device for wheel speed sensor

Abstract

The utility model relates to the technical field of wheel speed sensors, in particular to an inspection device for a wheel speed sensor, which comprises an inspection box, a sealing box is fixedly mounted at the top end of the inspection box, shells are fixedly mounted on two sides in the sealing box, a plurality of electric heating tubes are sequentially arranged in the shells from top to bottom, and the electric heating tubes are connected with the sealing box. The two ends of the right bottom of the sealing box communicate with a cold water inlet and a cold water outlet correspondingly. The sealing box, the electric heating pipe, the coiled pipe and the fan are matched for use, the fan and the electric heating pipe are started, the electric heating pipe is started to heat air in the sealing box, then high-temperature air is blown into the detection box through the fan to simulate a high-temperature environment, and then detection is carried out according to the mode. Cold water is fed into the coiled pipe through the external circulating pump, then cold air is fed into the detection box through the fan, and by simulating a high-temperature or low-temperature environment, the detection accuracy of the sensor can be improved, and errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel speed sensors, in particular to a testing device for wheel speed sensors. Background Art

[0002] The wheel speed sensor test device is mainly used to verify the performance and accuracy of the sensor. The test device is usually designed to simulate vehicle movement and monitor the output of the sensor. These components work together to enable the test device to simulate the performance of the sensor under different speeds and environmental conditions, thereby verifying whether it meets the prescribed standards and specifications. Such testing helps ensure that the vehicle speed sensor can provide accurate and reliable measurements in actual vehicle applications.

[0003] An increase in temperature will cause an object to expand, while a decrease in temperature will cause an object to contract. Expansion and contraction will affect the physical structure of the sensor, resulting in inaccurate wheel speed measurement by the sensor. Temperature changes will also affect the performance of electronic components inside the sensor. For example, the values ​​of components such as resistors and capacitors will change with temperature, thereby affecting the accuracy of the sensor output. However, existing inspection devices generally perform inspections under normal conditions and cannot simulate high and low temperature environments, so the detection results are inaccurate. For this reason, we propose a wheel speed sensor inspection device. Utility Model Content

[0004] The purpose of the utility model is to provide a testing device for a wheel speed sensor to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wheel speed sensor inspection device, comprising:

[0007] A detection box, a sealed box is fixedly installed on the top of the detection box, a shell is fixedly installed on both sides of the sealed box, a number of electric heating tubes are arranged in sequence from top to bottom inside the shell, and the two ends of the right bottom of the sealed box are respectively connected with a cold water inlet and a cold water outlet, and the cold water outlet and the cold water inlet are located at one end of the sealed box and connected with a serpentine pipe;

[0008] A detection platform is fixedly installed on the upper inner end of the detection box, a mounting groove is provided in the middle of the detection platform, a sensor body is sleeved in the middle of the mounting groove, a frame is fixedly installed in the middle of the inner side of the detection box, a servo motor is fixedly installed on the middle bottom end of the frame, and a speed measuring gear is fixedly installed on the output shaft of the servo motor through the frame.

[0009] Preferably, a fan is fixedly installed at the top of the interior of the sealed box, and a top cover is fixedly installed at the middle of the top of the sealed box, and the top cover is connected to the interior of the sealed box;

[0010] Preferably, an air inlet is provided in the middle of the top end of the top cover, and a filter is fixedly installed in the middle of the air inlet;

[0011] Preferably, a box door is movably installed on one side of the front of the detection box through a hinge, and an observation window is fixedly installed in the middle of the box door;

[0012] Preferably, mounting seats are fixedly installed on the top of both sides of the detection platform, and electric push rods are arranged on one side of the back of the two mounting seats, and the output shafts of the electric push rods are fixedly connected with clamping blocks, and the two clamping blocks clamp the sensor body;

[0013] Preferably, strip grooves are provided on both sides of the middle of the detection platform, and the bottom end of the clamping block is slidably connected to the strip grooves.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This wheel speed sensor inspection device is used in conjunction with a sealed box, an electric heating tube, a serpentine tube and a fan. The fan and the electric heating tube are started. After the electric heating tube is started, the air inside the sealed box is heated. The high-temperature air is then blown into the inspection box by the fan to simulate a high-temperature environment. The inspection is then carried out in the above manner. When simulating a low-temperature environment, cold water is sent into the serpentine tube by an external circulation pump, and then cold air is sent into the inspection box by the fan. By simulating a high-temperature or low-temperature environment, the accuracy of sensor detection can be improved and the occurrence of errors can be reduced.

[0016] The wheel speed sensor inspection device cooperates with a test box, a test table, a mounting groove, an electric push rod and a clamping block to insert the sensor body from above the mounting groove in the middle of the test table, and then starts the electric push rod. After the electric push rod is started, it pushes the clamping block forward, and the sensor body is clamped in the middle of the test table by the two clamping blocks. In this way, the sensor body will not be displaced during the test, and the vibration of the equipment will not cause the sensor body to fall off from the mounting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of point B in the middle.

[0021] In the figure: 1. test box; 2. sealing box; 3. shell; 4. electric heating tube; 5. cold water outlet; 6. cold water inlet; 7. serpentine tube; 8. test table; 9. mounting slot; 10. sensor body; 11. rack; 12. servo motor; 13. speed measuring gear; 14. fan; 15. top cover; 16. air inlet; 17. box door; 18. observation window; 19. mounting seat; 20. electric push rod; 21. clamping block; 22. strip slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0024] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0025] A wheel speed sensor inspection device comprises a detection box 1, a sealed box 2 is fixedly installed on the top of the detection box 1, a shell 3 is fixedly installed on both sides of the inside of the sealed box 2, a plurality of electric heating tubes 4 are arranged in sequence from top to bottom inside the shell 3, a cold water inlet 5 and a cold water outlet 6 are respectively connected at both ends of the right bottom of the sealed box 2, and a serpentine tube 7 is connected with the cold water outlet 6 and the cold water inlet 5 located at one end of the inside of the sealed box 2; a detection table 8 is fixedly installed on the upper end of the inside of the detection box 1, a mounting groove 9 is arranged in the middle of the detection table 8, a sensor body 10 is sleeved in the middle of the mounting groove 9, a frame 11 is fixedly installed in the middle of the inner side of the detection box 1, a servo motor 12 is fixedly installed at the middle bottom of the frame 11, and a speed measuring gear 13 is fixedly installed on the output shaft of the servo motor 12 through the frame 11;

[0026] In this embodiment, after routine detection, the fan 14 and the electric heating tube 4 are started. After the electric heating tube 4 is started, the air inside the sealed box 2 is heated, and then the high-temperature air is blown into the detection box 1 through the fan 14 to simulate a high-temperature environment. Then, the detection is performed in the above manner. When simulating a low-temperature environment, cold water is sent into the serpentine tube 7 through an external circulation pump, and then cold air is sent into the detection box 1 through the fan 14. By simulating a high-temperature or low-temperature environment, the accuracy of sensor detection can be improved and the occurrence of errors can be reduced.

[0027] like Figure 1 and Figure 2 As shown, a fan 14 is fixedly installed at the top of the sealed box 2, a top cover 15 is fixedly installed at the middle of the top of the sealed box 2, the top cover 15 is connected to the inside of the sealed box 2, an air inlet 16 is opened at the middle of the top of the top cover 15, and a filter is fixedly installed at the middle of the air inlet 16;

[0028] In this embodiment, when simulating high temperature and low temperature environments, the fan 14 is started. The fan 14 can send the high temperature or low temperature air inside the sealed box 2 into the detection box 1 to heat or cool the air inside the detection box 1, so that the temperature inside the detection box 1 can be quickly reduced or increased.

[0029] like Figure 1 As shown, a box door 17 is movably installed on one side of the front of the detection box 1 through a hinge, and an observation window 18 is fixedly installed in the middle of the box door 17;

[0030] In this embodiment, the box door 17 disposed on the front of the detection box 1 is used to maintain the sealing of the detection box 1 when simulating high and low temperature environments, and the observation window 18 is used to observe the situation inside the detection box 1.

[0031] like Figure 2 and Figure 3 As shown, mounting seats 19 are fixedly installed on the top of both sides of the detection platform 8, and electric push rods 20 are arranged on the back side of the two mounting seats 19. The output shafts of the electric push rods 20 are fixedly connected with clamping blocks 21, and the two clamping blocks 21 clamp the sensor body 10;

[0032] In this embodiment, the sensor body 10 is inserted from above the mounting groove 9 in the middle of the detection platform 8, and then the electric push rod 20 is started. After the electric push rod 20 is started, the clamping block 21 is pushed forward, and the sensor body 10 is clamped in the middle of the detection platform 8 by the two clamping blocks 21. In this way, during the detection, the sensor body 10 will not be displaced, and the vibration of the equipment will not cause the sensor body 10 to fall off from the mounting groove 9.

[0033] like Figure 3 As shown, strip grooves 22 are provided on both sides of the middle of the detection platform 8, and the bottom end of the clamping block 21 is slidably connected to the strip grooves 22;

[0034] In this embodiment, when the electric push rod 20 controls the clamping block 21 to slide, the bottom end of the clamping block 21 can slide and guide along the strip grooves 22 on both sides of the detection platform 8.

[0035] Working principle: During the inspection, open the box door 17 on the front of the inspection box 1, and then insert the sensor body 10 from above the mounting slot 9 in the middle of the inspection table 8, then start the electric push rod 20, and after the electric push rod 20 is started, push the clamping block 21 forward, and clamp the sensor body 10 in the middle of the inspection table 8 through the two clamping blocks 21, then start the servo motor 12, and after the servo motor 12 is started, control the frame 11 to rotate, so that it can be checked whether the sensor body 10 is qualified; after the routine inspection, start the fan 14 and the electric heating tube 4, and after the electric heating tube 4 is started, heat the air inside the sealed box 2, and then blow the high-temperature air into the inspection box 1 through the fan 14 to simulate a high-temperature environment, and then inspect in the above manner. When simulating a low-temperature environment, send cold water into the serpentine tube 7 through an external circulation pump, and then send cold air into the inspection box 1 through the fan 14.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wheel speed sensor inspection device, characterized in that: include A detection box (1), wherein a sealed box (2) is fixedly mounted on the top of the detection box (1), shells (3) are fixedly mounted on both sides of the sealed box (2), a plurality of electric heating tubes (4) are arranged in sequence from top to bottom inside the shell (3), a cold water inlet (5) and a cold water outlet (6) are respectively connected at both ends of the bottom right side of the sealed box (2), and a serpentine tube (7) is connected to the cold water outlet (6) and the cold water inlet (5) at one end located inside the sealed box (2); A detection table (8) is fixedly mounted on the upper end of the detection box (1), a mounting groove (9) is provided in the middle of the detection table (8), a sensor body (10) is sleeved in the middle of the mounting groove (9), a frame (11) is fixedly mounted in the middle of the inner side of the detection box (1), a servo motor (12) is fixedly mounted on the bottom end of the middle of the frame (11), and a speed measuring gear (13) is fixedly mounted on the output shaft of the servo motor (12) passing through the frame (11).

2. A wheel speed sensor testing device according to claim 1, characterized in that: A fan (14) is fixedly mounted on the top of the interior of the sealed box (2), and a top cover (15) is fixedly mounted on the middle of the top of the sealed box (2), wherein the top cover (15) is in communication with the interior of the sealed box (2).

3. A wheel speed sensor testing device according to claim 2, characterized in that: An air inlet (16) is provided in the middle of the top end of the top cover (15), and a filter is fixedly installed in the middle of the air inlet (16).

4. The wheel speed sensor testing device according to claim 1, characterized in that: A box door (17) is movably mounted on one side of the front of the detection box (1) via a hinge, and an observation window (18) is fixedly mounted in the middle of the box door (17).

5. The wheel speed sensor testing device according to claim 1, characterized in that: Mounting seats (19) are fixedly mounted on the top ends of both sides of the detection platform (8), and electric push rods (20) are arranged on the back sides of the two mounting seats (19). The output shafts of the electric push rods (20) are fixedly connected to clamping blocks (21), and the two clamping blocks (21) clamp the sensor body (10).

6. A wheel speed sensor testing device according to claim 5, characterized in that: Both sides of the middle of the detection platform (8) are provided with strip grooves (22), and the bottom end of the clamping block (21) is slidably connected to the strip grooves (22).

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