Detection device for speed sensor

Abstract

The utility model discloses a detection device for a speed sensor, and relates to the field of sensor detection. The detection device for the speed sensor comprises a detection table, a detection box is installed on the detection table, a box door is arranged at an opening of the detection box, the detection device further comprises an installation frame, a detection device and a control device, the installation frame is arranged in the detection box, and an installation opening used for installing the speed sensor is formed in the installation frame; through cooperative use of the detection box, the mounting frame, the halfpace, the tensioning assembly, the pull-up assembly, the water pump, the water spraying disc and other parts, the speed sensor can be subjected to simulation tests in various use environments, and compared with a traditional detection mode, whether the quality of the speed sensor is qualified or not and whether collected data are accurate or not can be detected, and the detection efficiency is improved. The detection function is more comprehensive, and the reliability of detection data is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensor detection, and in particular relates to a detection device for a speed sensor. Background Art

[0002] The speed sensor mainly uses the Hall principle of magneto-electric interaction for detection, and generates changes in electrical signals through changes in distance. The speed sensor for automobiles must be tested for accuracy before leaving the factory. After passing the test, it must be laser marked and screw holes must be drilled before it can leave the factory. Existing speed sensor detection devices usually use a motor to drive the tachometer wheel, and then manually install and remove the speed sensor. This manual fixed detection method cannot guarantee the detection accuracy, and the existing detection device can usually only perform extremely simple signal detection, which cannot achieve simulation tests in various usage scenarios and has relatively simple functions. In view of this, the present utility model is specially proposed. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a detection device for a speed sensor that can overcome the above problems or at least partially solve the above problems.

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a detection device for a speed sensor includes a detection platform, a detection box is installed on the detection platform, and a box door is provided at the opening of the detection box, and also includes: a mounting bracket, which is arranged in the detection box, and the mounting bracket is provided with a mounting port for installing the speed sensor; ladders are symmetrically arranged on both sides of the interior of the detection platform, and the ladders are located below both sides of the mounting bracket; a tensioning assembly for tightening the mounting bracket downward is symmetrically installed on both sides of the detection box; an upper pulling assembly for pulling the mounting bracket upward is symmetrically installed on both sides of the detection box; a rotating roller, which is rotatably connected to the mounting bracket and is located below the mounting port, a motor is fixedly installed on one side of the mounting bracket, and the output end of the motor is fixedly connected to the end adjacent to the rotating roller; a data analyzer is installed on one side of the detection platform.

[0005] Furthermore, the tensioning assembly includes a guide rod and a tensioning spring, the guide rod is symmetrically fixedly connected to both sides of the detection box, the mounting frame is slidably connected to the guide rod, the tensioning spring is sleeved on the guide rod located above the mounting frame, and the two ends of the tensioning spring are respectively connected to the detection box and the mounting frame.

[0006] Furthermore, the pulling-up assembly includes an electric telescopic rod, an electromagnet and an iron block. The electric telescopic rod is symmetrically fixedly connected on both sides of the detection box, the electromagnet is fixedly connected to the telescopic end of the electric telescopic rod, and the iron block is symmetrically fixedly connected on both sides of the mounting frame and is located directly below the electromagnet on the same side.

[0007] In order to reduce the vibration force transmitted from the detection box to the detection platform, a damping shock absorber is further installed between the detection box and the detection platform.

[0008] In order to more intuitively see whether there are differences between the two sets of data, further, two mounting ports are symmetrically provided on the mounting frame, one of the mounting ports is installed with a standard speed sensor, and the standard speed sensor is electrically connected to the data analyzer.

[0009] Furthermore, a water storage chamber is provided in the testing platform, and a water pump connected to the water storage chamber is installed on one side of the testing platform. A water spray disc is fixedly connected to the upper end of the interior of the testing box, close to the mounting port of the mounting frame, and a plurality of water spray heads are provided at the lower end of the water spray disc. The water outlet of the water pump and the water inlet of the water spray disc are connected through a water pipe.

[0010] In order to facilitate the recycling and reuse of water and reduce the waste of water resources, a drain outlet is provided at the bottom of the test box, and a return water outlet is provided on the water storage chamber. The drain outlet of the test box and the return water outlet of the water storage chamber are connected by a telescopic hose, and a conical guide surface is provided on the outside of the drain outlet at the lower end of the interior of the test box.

[0011] In order to prevent water from adhering to the iron block and causing it to rust, further, water holes are opened on both sides of the mounting opening of the mounting frame, and a drainage cover is installed on the outer side of the mounting opening of the mounting frame.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the existing technology: the utility model can perform simulation tests on the speed sensor under various usage environments through the coordinated use of the detection box, mounting frame, ladder platform, tensioning assembly, pull-up assembly, water pump, spray plate and other components. Compared with the traditional detection method, it can detect whether the quality of the speed sensor is qualified and whether the collected data is accurate. The detection function is more comprehensive, which greatly improves the reliability of the detection data.

[0013] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the attached figure:

[0015] Figure 1It is a front view schematic diagram of the utility model;

[0016] Figure 2 It is a structural diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the mounting frame, iron block, mounting port, water outlet and drainage cover in the utility model.

[0018] In the figure: 1. Test bench; 101. Water storage chamber; 102. Damping shock absorber; 103. Telescopic hose; 2. Data analyzer; 3. Test box; 301. Box door; 302. Mounting frame; 303. Guide rod; 304. Tension spring; 305. Electric telescopic rod; 306. Electromagnet; 307. Iron block; 308. Rotating roller; 309. Motor; 4. Standard speed sensor; 401. Drainage cover; 5. Water pump; 501. Spray tray; 502. Water pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0020] Example 1:

[0021] Reference Figure 1-Figure 3 , a detection device for a speed sensor includes a detection platform 1, on which a detection box 3 is installed, and a box door 301 is provided at the opening of the detection box 3, and also includes: a mounting frame 302, which is arranged in the detection box 3, and a mounting port for installing a speed sensor is provided on the mounting frame 302; ladders are symmetrically arranged on both sides of the interior of the detection platform 1, and the ladders are located below both sides of the mounting frame 302; a tensioning assembly for downward tensioning the mounting frame 302 is symmetrically installed on both sides of the detection box 3; an upper pulling assembly for pulling the mounting frame 302 upward is symmetrically installed on both sides of the detection box 3; a rotating roller 308 is rotatably connected to the mounting frame 302 and is located below the mounting port, a motor 309 is fixedly installed on one side of the mounting frame 302, and the output end of the motor 309 is fixedly connected to the end adjacent to the rotating roller 308; a data analyzer 2 is installed on one side of the detection platform 1.

[0022] The tensioning assembly includes a guide rod 303 and a tensioning spring 304. The guide rod 303 is symmetrically fixedly connected to both sides of the detection box 3. The mounting frame 302 is slidably connected to the guide rod 303. The tensioning spring 304 is sleeved on the guide rod 303 located above the mounting frame 302. The two ends of the tensioning spring 304 are respectively connected to the detection box 3 and the mounting frame 302.

[0023] The pulling-up assembly includes an electric telescopic rod 305, an electromagnet 306 and an iron block 307. The electric telescopic rod 305 is symmetrically fixedly connected to both sides of the detection box 3, the electromagnet 306 is fixedly connected to the telescopic end of the electric telescopic rod 305, and the iron block 307 is symmetrically fixedly connected to both sides of the mounting frame 302 and is located directly below the electromagnet 306 on the same side.

[0024] A water storage chamber 101 is provided in the testing platform 1, and a water pump 5 connected to the water storage chamber 101 is installed on one side of the testing platform 1. A water spray disc 501 is fixedly connected to the upper end of the interior of the testing box 3, near the mounting opening of the mounting frame 302, and a plurality of water spray heads are provided at the lower end of the water spray disc 501. The water outlet of the water pump 5 is connected to the water inlet of the water spray disc 501 through a water pipe 502.

[0025] When the speed sensor is produced and it is necessary to sample and inspect the performance of the speed sensors of the same batch, one of the speed sensors in the sample can be installed on the mounting frame 302 through the mounting port so that the monitoring end of the speed sensor is close to the rotating roller 308. Then the speed sensor is electrically connected to the data analyzer 2 and powered on. After the previous work is ready, the motor 309 can be started. The motor 309 will drive the rotating roller 308 to rotate at the specified speed. Then the speed sensor can detect the speed of the rotating roller 308 and transmit the detected data to the data analyzer 2. Then the data analyzer 2 will analyze and compare the transmitted data with the standard data, so as to detect the accuracy of data collection when the speed sensor is used under normal conditions.

[0026] When the speed sensor is tested, the electric telescopic rod 305 can be started to extend and retract, and the electromagnet 306 can be energized to obtain magnetic force. When the electric telescopic rod 305 moves down to the bottom, the electromagnet 306 can stick to the iron block 307 and adsorb the iron block 307. When the electric telescopic rod 305 moves up, the electromagnet 306 can make the mounting frame 302 overcome the tensioning force of the tensioning spring 304 through the iron block 307 to move up. The mounting frame 302 is continuously moved upward. When the tensioning force of the tensioning spring 304 is greater than the adsorption force of the electromagnet 306 on the iron block 307, the iron block 307 will separate from the electromagnet 306. Then, the mounting frame 302 will move downward under the tensioning force of the tensioning spring 304 and collide with the ladder, thereby generating vibration. The generated vibration force will then be transmitted to the speed sensor, thereby simulating the detection state of the speed sensor when subjected to vibration force, and testing whether its detection effect during vibration is accurate.

[0027] After the above-mentioned test of the speed sensor is completed, the water pump 5 can be started. The water pump 5 will transport the water in the water storage chamber 101 into the water spray tray 501 through the water supply pipe 502, and then spray the water toward the speed sensor through the sprinkler head, thereby simulating the detection state of the speed sensor when it is eroded by rainwater, and testing whether its detection effect is accurate when used in rainy days.

[0028] By conducting simulation tests on the speed sensor under various usage environments, it is possible to detect whether the quality of the speed sensor is qualified and whether the collected data is accurate. The detection function is more comprehensive and the reliability of the detection data is greatly improved.

[0029] Example 2:

[0030] Reference Figure 1-Figure 3 The detection device for the speed sensor is basically the same as that of Example 1, and furthermore, a damping shock absorber 102 is installed between the detection box 3 and the detection platform 1. Through the setting of the damping shock absorber 102, the vibration force transmitted from the detection box 3 to the detection platform 1 can be damped and buffered, thereby avoiding damage to the components on the detection platform 1 due to the vibration force, and effectively extending the service life of the components on the detection platform 1.

[0031] There are two symmetrical mounting ports on the mounting frame 302, one of which is equipped with a standard speed sensor 4. The standard speed sensor 4 is electrically connected to the data analyzer 2. Through the setting of the standard speed sensor 4, when the speed sensor being tested and the speed sensor 4 detected are transmitted to the data analyzer 2, the data analyzer 2 can synchronize the two groups of data on the display screen. Then, the staff can compare the two groups of data to intuitively see whether there are any differences between the two groups of data and the amount of the differences, so that the staff can quickly know whether the speed sensor meets the standards.

[0032] Example 3:

[0033] Reference Figure 1-Figure 3 , a detection device for a speed sensor is basically the same as that of Example 2, except that: a drain port is provided at the bottom of the detection box 3, and a return water port is provided on the water storage chamber 101. The drain port of the detection box 3 and the return water port of the water storage chamber 101 are connected via a telescopic hose 103. The lower end of the interior of the detection box 3 is located outside the drain port and is provided with a conical guide surface. Through the arrangement of the drain port, the return water port and the telescopic hose 103, when water enters the detection box 3 through the water spray disc 501, the used water can be returned to the water storage chamber 101, thereby facilitating water recycling and reuse and reducing the waste of water resources. Through the arrangement of the conical guide surface, the water in the detection box 3 can be drained so that the water can be more fully returned to the water storage chamber 101.

[0034] Water through ports are provided on both sides of the mounting opening of the mounting frame 302, and a drainage cover 401 is installed on the outer side of the mounting opening of the mounting frame 302. Through the arrangement of the water through ports and the drainage cover 401, when the water spray disc 501 sprays water downward through the water spray head, the water can be sprayed only onto the speed sensor and the standard speed sensor 4 that need to be detected, and can smoothly flow back into the water storage chamber 101 through the drain port, thereby preventing water from adhering to the iron block 307 and causing it to rust, thereby affecting the magnetic attraction effect of the electromagnet 306 on it.

[0035] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A detection device for a speed sensor, characterized in that: The invention comprises a testing platform (1), a testing box (3) is installed on the testing platform (1), a box door (301) is provided at the opening of the testing box (3), and further comprises: A mounting frame (302) is arranged in the detection box (3), and a mounting opening for mounting a speed sensor is provided on the mounting frame (302); Steps are symmetrically arranged on both sides of the interior of the detection platform (1), and the step platforms are located below both sides of the mounting frame (302); A tensioning assembly for tensioning the mounting frame (302) downward, symmetrically mounted on both sides of the detection box (3); A pull-up assembly for pulling the mounting frame (302) upwards is symmetrically mounted on both sides of the detection box (3); a rotating roller (308) rotatably connected to the mounting frame (302) and located below the mounting opening; a motor (309) is fixedly mounted on one side of the mounting frame (302); an output end of the motor (309) is fixedly connected to an end adjacent to the rotating roller (308); A data analyzer (2) is installed on one side of the detection platform (1).

2. The detection device for a speed sensor according to claim 1, wherein: The tensioning assembly comprises a guide rod (303) and a tensioning spring (304); the guide rod (303) is symmetrically fixedly connected to both sides of the detection box (3); the mounting frame (302) is slidably connected to the guide rod (303); the tensioning spring (304) is sleeved on the guide rod (303) located above the mounting frame (302); and the two ends of the tensioning spring (304) are respectively connected to the detection box (3) and the mounting frame (302).

3. The detection device for a speed sensor according to claim 1, wherein: The pull-up assembly comprises an electric telescopic rod (305), an electromagnet (306) and an iron block (307); the electric telescopic rod (305) is symmetrically fixedly connected to both sides of the detection box (3); the electromagnet (306) is fixedly connected to the telescopic end of the electric telescopic rod (305); and the iron block (307) is symmetrically fixedly connected to both sides of the mounting frame (302) and is located directly below the electromagnet (306) on the same side.

4. The detection device for a speed sensor according to claim 1, wherein: A damping shock absorber (102) is installed between the detection box (3) and the detection platform (1).

5. The detection device for a speed sensor according to claim 1, wherein: Two mounting openings are symmetrically arranged on the mounting frame (302), one of which is equipped with a standard speed sensor (4), and the standard speed sensor (4) is electrically connected to the data analyzer (2).

6. The detection device for a speed sensor according to claim 1, wherein: A water storage chamber (101) is provided in the testing platform (1), a water pump (5) connected to the water storage chamber (101) is installed on one side of the testing platform (1), a water spray disc (501) is fixedly connected to the upper end of the interior of the testing box (3) near the top of the mounting opening of the mounting frame (302), a plurality of water spray heads are provided at the lower end of the water spray disc (501), and the water outlet of the water pump (5) is connected to the water inlet of the water spray disc (501) via a water pipe (502).

7. The detection device for a speed sensor according to claim 6, wherein: A drainage outlet is provided at the bottom of the detection box (3), and a water return outlet is provided on the water storage chamber (101). The drainage outlet of the detection box (3) and the water return outlet of the water storage chamber (101) are connected via a telescopic hose (103). A conical guide surface is provided at the lower end of the interior of the detection box (3) outside the drainage outlet.

8. The detection device for a speed sensor according to claim 7, wherein: Water openings are provided on both sides of the mounting opening of the mounting frame (302), and a drainage cover (401) is installed on the mounting frame (302) outside the mounting opening.

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