A verification device for an acceleration sensor

Abstract

The utility model discloses an acceleration sensor's check device, including base, the top fixed mounting of base has the support frame, the outer end sliding connection of support frame has square drop impact hammer, one side of base is provided with accurate lifting assembly, be provided with check subassembly between support frame, be provided with antiwear limiting component between support frame, the top fixed mounting of base has elastic buffer block, this scheme is through setting accurate lifting assembly, and the electric slide rail and the track block cooperation, can with laser emitter adjust to the required height, and laser emitter and laser inductor cooperate and work, can with square drop impact hammer adjust to the suitable height, this makes square drop impact hammer's height adjustment more accurate, avoids square drop impact hammer to appear error on the height of lifting, and then makes the detection of acceleration sensor more accurate, has promoted the accuracy of acceleration sensor check device.

Description

Technical Field

[0001] This utility model relates to the field of acceleration sensor verification technology, and specifically to an acceleration sensor verification device. Background Technology

[0002] The verification device for accelerometers is mainly used to verify the accuracy and reliability of sensor performance, ensuring that it can stably output valid data in practical applications. The verification device verifies whether the data output of the accelerometer meets the preset accuracy requirements through standard tests.

[0003] Chinese patent CN206489187U discloses a verification device for accelerometers, including a bracket, a circular drop impact hammer, an elastic buffer block, and a data acquisition unit. The circular drop impact hammer is slidably connected to the bracket, and the elastic buffer block is located directly below the circular drop impact hammer. Multiple accelerometers are located at the bottom of the circular drop impact hammer, each equidistant from the center of the bottom of the hammer, and each accelerometer is electrically connected to the data acquisition unit. Because the circular drop impact hammer has a circular structure and each accelerometer is equidistant from the center of the bottom of the hammer, the impact magnitude experienced by each accelerometer is essentially the same. This facilitates data comparison among the various accelerometers, enabling the identification of individual accelerometers with abnormal conditions and preventing their use.

[0004] When conducting impact force verification on accelerometers, multiple accelerometers need to be lifted to the same height using a lifting device for impact force verification. Typically, the lifting height is manually controlled, which may cause errors in the lifting height. These height errors may lead to deviations in the impact force verification of the accelerometers, thus affecting the subsequent application of the accelerometers. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an acceleration sensor verification device, thereby preventing errors in the lifting height of a square drop impact hammer.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an accelerometer verification device, comprising a base, a support frame fixedly installed on the top of the base, a square drop impact hammer slidably connected to the outer end of the support frame, a precision lifting component provided on one side of the base, a verification component provided between the support frames, an anti-wear limiting component provided between the support frames, and an elastic buffer block fixedly installed on the top of the base.

[0007] The precision lifting assembly includes a measuring ruler, which is fixedly installed on one side of the base. An electric slide rail is fixedly installed on one side of the measuring ruler. A track block is slidably connected to the outer end of the electric slide rail. A pointer is fixedly installed on one side of the track block. A laser emitter is fixedly installed on the other side of the track block. A laser sensor is fixedly installed on one side of the square drop impact hammer.

[0008] Preferably, the verification component includes a mounting plate, two of which are symmetrically fixedly mounted on the top of the support frame, and a drive motor is fixedly mounted on one side of one of the mounting plates, with a winding roller fixedly mounted on the output end of the drive motor.

[0009] Preferably, an adjusting rope is wound around the outer end of the winding roller, a connector is fixedly installed at the bottom of the adjusting rope, and a buckle is movably connected to the bottom of the connector.

[0010] Preferably, the anti-wear limiting component includes a C-shaped plate, which is fixedly installed between the support frames. The C-shaped plate has a through hole inside, and multiple limiting rollers are symmetrically rotatably connected inside the through hole.

[0011] Preferably, the pointer is slidably connected to one side of the measuring ruler, and the laser emitter and the laser sensor are electrically connected.

[0012] Preferably, the buckle is located at the top of the square drop hammer, and the winding roller is rotatably connected to the mounting plate.

[0013] Preferably, the limiting rods are in a rolling connection with the adjusting rope.

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

[0015] 1. This solution, by setting up a precision lifting component, with the electric slide rail and track block working together, can adjust the laser emitter to the required height. The laser emitter and laser sensor work together to adjust the square drop hammer to the appropriate height. This makes the height adjustment of the square drop hammer more precise, avoiding errors in the lifting height of the square drop hammer, thereby making the detection of the acceleration sensor more accurate and improving the accuracy of the acceleration sensor verification device.

[0016] 2. This solution incorporates an anti-wear limiting component. The C-shaped plate is connected to the adjusting rope via a limiting roller inside the through hole. During the raising and lowering of the adjusting rope, the limiting roller provides support and guidance, effectively reducing direct friction between the adjusting rope and other components of the device. This prevents the adjusting rope from wearing out and breaking due to long-term friction, extending its service life. It also ensures the smoothness of the adjusting rope's raising and lowering process, making the lifting and lowering of the drop impact hammer more stable and further improving the overall operational stability of the verification device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the precision lifting component of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the verification component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the anti-wear limiting component of this utility model;

[0021] Figure 5 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Base; 2. Support frame; 3. Square drop hammer; 41. Measuring ruler; 42. Electric slide rail; 43. Track block; 44. Pointer; 45. Laser emitter; 46. Laser sensor; 51. Mounting plate; 52. Drive motor; 53. Rewinding roller; 54. Adjusting rope; 55. Connector; 56. Buckle; 61. C-shaped plate; 62. Through hole; 63. Limiting roller; 7. Elastic buffer block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , Figure 2 and Figure 5This utility model provides a technical solution: an accelerometer verification device, including a base 1, a support frame 2 fixedly installed on the top of the base 1, a square drop impact hammer 3 slidably connected to the outer end of the support frame 2, a precision lifting assembly on one side of the base 1, a verification assembly between the support frames 2, an anti-wear limiting assembly between the support frames 2, an elastic buffer block 7 fixedly installed on the top of the base 1, and the precision lifting assembly including a measuring ruler 41, which is fixedly installed on one side of the base 1. An electric slide rail 42 is fixedly installed on one side of the measuring ruler 41, and the electric slide rail 42 is driven by a motor. The transmission system converts electrical energy into linear motion of the slider. The outer end of the electric slide rail 42 is slidably connected to the track block 43. A pointer 44 is fixedly installed on one side of the track block 43, and a laser emitter 45 is fixedly installed on the other side of the track block 43. A laser sensor 46 is fixedly installed on one side of the square drop impact hammer 3. The pointer 44 is slidably connected to one side of the measuring ruler 41. The laser emitter 45 and the laser sensor 46 are electrically connected. This structure can accurately adjust the acceleration sensors to be detected to the same height, preventing errors caused by different heights of the acceleration sensors, thus making the acceleration sensors highly accurate for verification.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The verification component includes mounting plates 51, two of which are symmetrically fixedly mounted on the top of the support frame 2. A drive motor 52 is fixedly mounted on one side of one of the mounting plates 51. A winding roller 53 is fixedly mounted on the output end of the drive motor 52. An adjusting rope 54 is wound around the outer end of the winding roller 53. A connector 55 is fixedly mounted on the bottom of the adjusting rope 54. A buckle 56 is movably connected to the bottom of the connector 55. This automates the lifting and lowering process of the impact hammer, reduces operational deviations that may result from manual intervention, and further ensures the stability of height adjustment. Consistency provides strong support for the reliability of accelerometer verification data. The anti-wear limiting component includes a C-shaped plate 61, which is fixedly installed between the support frames 2. The C-shaped plate 61 has a through hole 62 inside, and multiple limiting rollers 63 are symmetrically rotatably connected inside the through hole 62. The buckle 56 is located on the top of the square drop impact hammer 3. The winding roller 53 is rotatably connected to the mounting plate 51, and the limiting rollers 63 are rotatably connected to the adjusting rope 54. This structure can limit and prevent wear on the adjusting rope 54, increasing the service life of the adjusting rope 54.

[0026] Working principle: The operator starts the electric slide rail 42, which drives the track block 43 to move for adjustment. The track block 43 drives the pointer 44 to move and complete the adjustment, adjusting the pointer 44 to the required position of the measuring ruler 41, thereby fixing the laser emitter 45.

[0027] The accelerometer is evenly fixed to the bottom of the square drop hammer 3, so that the accelerometer is electrically connected to the checker. The drive motor 52 is started, and the drive motor 52 drives the adjusting rope 54 to wind up. The adjusting rope 54 drives the connecting piece 55 to move upward. The connecting piece 55 drives the square drop hammer 3 to move upward. The square drop hammer 3 drives the accelerometer to move upward. When the signals of the laser emitter 45 and the laser sensor 46 coincide, the signal is transmitted to the drive motor 52, and the drive motor 52 stops the lifting operation.

[0028] Open the latch 56, and the square drop impact hammer 3 will move the acceleration sensor downward under the action of gravity. The acceleration sensor will then contact the elastic buffer block 7. Use the checker to check the impact force on the acceleration sensor. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A verification device for an accelerometer, characterized in that: Includes a base (1), a support frame (2) is fixedly installed on the top of the base (1), a square drop impact hammer (3) is slidably connected to the outer end of the support frame (2), a precision lifting component is provided on one side of the base (1), a verification component is provided between the support frames (2), an anti-wear limiting component is provided between the support frames (2), and an elastic buffer block (7) is fixedly installed on the top of the base (1). The precision lifting assembly includes a measuring ruler (41), which is fixedly installed on one side of the base (1). An electric slide rail (42) is fixedly installed on one side of the measuring ruler (41). A track block (43) is slidably connected to the outer end of the electric slide rail (42). A pointer (44) is fixedly installed on one side of the track block (43). A laser emitter (45) is fixedly installed on the other side of the track block (43). A laser sensor (46) is fixedly installed on one side of the square drop impact hammer (3).

2. The verification device for an accelerometer according to claim 1, characterized in that: The inspection component includes a mounting plate (51), two mounting plates (51) are symmetrically fixedly installed on the top of the support frame (2), and a drive motor (52) is fixedly installed on one side of one of the mounting plates (51), and a winding roller (53) is fixedly installed at the output end of the drive motor (52).

3. The verification device for an accelerometer according to claim 2, characterized in that: An adjusting rope (54) is wound around the outer end of the winding roller (53). A connector (55) is fixedly installed at the bottom of the adjusting rope (54). A buckle (56) is movably connected to the bottom of the connector (55).

4. The verification device for an accelerometer according to claim 1, characterized in that: The anti-wear limiting component includes a C-shaped plate (61), which is fixedly installed between the support frame (2). The C-shaped plate (61) has a through hole (62) inside, and multiple limiting rods (63) are symmetrically rotatably connected inside the through hole (62).

5. The verification device for an accelerometer according to claim 1, characterized in that: The pointer (44) is slidably connected to one side of the measuring ruler (41), and the laser emitter (45) and the laser sensor (46) are electrically connected.

6. The verification device for an accelerometer according to claim 3, characterized in that: The buckle (56) is located on the top of the square drop hammer (3), and the winding roller (53) is rotatably connected to the mounting plate (51).

7. The verification device for an accelerometer according to claim 4, characterized in that: The limiting rollers (63) are connected to the adjusting rope (54) in a rolling connection.

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