Ground clearance dynamic monitoring equipment for electromagnetic suspension system

Abstract

The invention discloses ground clearance dynamic monitoring equipment for an electromagnetic suspension system, and relates to the technical field of electromagnetic suspension stroke monitoring. The device comprises a reference bottom plate, a control panel, a toughened glass detection window, and a three-side reflector body and laser range finder combined ranging structure. The device drives the reflector body to rotate through the scanning motor to realize multi-directional laser scanning on the ground so as to measure the distance between the vehicle chassis and the ground in real time. A driving decontamination motor, a negative pressure fan and a negative pressure driving cylinder are arranged in the system, the protection plate can be automatically driven to be opened and rotate to clean the detection window, and the light path is kept clean. The angle of the reflector body can be controlled by adjusting the electric cylinder to adapt to different chassis postures.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic suspension travel monitoring technology, specifically to a dynamic monitoring device for ground clearance of an electromagnetic suspension system. Background Technology

[0002] Current methods for detecting vehicle chassis ground clearance primarily rely on static ranging sensors or displacement detection devices integrated into the suspension system. However, these ground clearance data are mostly derived from suspension travel calculations, lacking real-time measurement of the actual distance to the ground. This results in lag in suspension response when encountering uneven road surfaces, body roll, or dynamic bumps, making it difficult to accurately maintain the ideal vehicle posture. Furthermore, the harsh environment of the chassis area allows dust, water stains, and mud to easily adhere to the sensor probe surface, significantly increasing the measurement error of optical ranging equipment and even rendering it unusable. Existing cleaning methods often employ simple air jets or enclosed structures with protective covers, which cannot provide dynamic cleaning or ensure the cleanliness of the light-transmitting windows during equipment operation. Moreover, traditional single-point ranging methods cannot achieve dynamic distribution measurement of the overall chassis ground clearance, failing to meet the control requirements of electromagnetic suspension systems for multi-point real-time feedback and hindering the high-precision requirements of onboard intelligent adjustments. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides the following technical solution: a dynamic ground clearance monitoring device for an electromagnetic suspension system, comprising a control panel, a reference base plate fixedly mounted on the lower surface of the control panel, an opening window at the center of the reference base plate, a gap between the reference base plate and the control panel, in which two symmetrical protective plates are slidably arranged, each protective plate having an extension head fixedly mounted; two symmetrical sliding tracks are opened on the control panel, with the two extension heads slidably arranged in the two sliding tracks respectively; a tempered glass fixing frame is rotatably embedded in the center of the control panel, tempered glass is concentrically fixed within the tempered glass fixing frame, and a driven pulley frame is coaxially fixed on the tempered glass fixing frame; a rotatable three-sided reflector is arranged above the tempered glass, and a laser rangefinder is arranged on the side of the three-sided reflector. The laser rangefinder contains a laser emitter and a laser receiver, the light emitted by the laser emitter can be reflected to the ground by any one of the three-sided reflectors, and the three-sided reflectors can reflect the reflected light from the ground back to the laser receiver.

[0004] Preferably, the three-sided reflector is rotatably mounted on the adjusting beam frame, and a scanning motor for driving the rotation of the three-sided reflector is fixedly mounted on the adjusting beam frame. The laser rangefinder is fixedly mounted on the adjusting beam frame, and the adjusting beam frame is rotatably mounted on two symmetrically arranged adjusting brackets, which are fixed on the control panel.

[0005] Preferably, a swing arm is rotatably mounted on one of the adjusting brackets, and the swing arm is coaxially and fixedly connected to the adjusting beam frame. An adjusting electric cylinder is also movably mounted on the control panel, the telescopic cylinder end of the adjusting electric cylinder is movably connected to the control panel, and the telescopic rod end of the adjusting electric cylinder is movably connected to the end of the swing arm away from the adjusting bracket.

[0006] Preferably, a drive cleaning motor is also fixedly installed on the control panel. One end of the output shaft of the drive cleaning motor is fixedly installed with a drive pulley. The drive pulley and the driven pulley frame are connected by a transmission belt. A negative pressure fan is fixedly installed on the other end of the drive cleaning motor.

[0007] Preferably, a housing is fixedly fastened to the control panel, an inner bracket is fixedly installed on the inner wall of the housing, a negative pressure drive cylinder bracket is fixedly installed on the inner bracket, a negative pressure drive cylinder is slidably installed on the negative pressure drive cylinder bracket, a vent hole is opened at the top of the negative pressure drive cylinder, and a negative pressure fan is coaxially arranged at the bottom of the inner side of the negative pressure drive cylinder.

[0008] Preferably, two parallel sliding guide rods are fixedly installed on the inner support, and push-pull beam rods are slidably sleeved on the two sliding guide rods. Both ends of the push-pull beam rods are elastically connected to the two edges of the inner support with elastic ropes, which are used to pull the push-pull beam rods in the direction of contact with the inner support.

[0009] Preferably, the two ends of the push-pull beam are movably connected to the two extension heads via push-pull connecting rods; wherein the push-pull beam is also fixedly connected to the bottom of the outer surface of the negative pressure drive cylinder.

[0010] Compared with the prior art, the present invention has the following advantages: (1) The present invention achieves dynamic scanning of multiple directions of the ground through the coordinated work of the laser rangefinder and the three-sided reflector. Unlike traditional single-point detection, the three-sided reflector can form a continuous reflective scanning band under the drive of the scanning motor, realizing real-time multi-point ranging during vehicle driving, so that the electromagnetic suspension system can adjust in real time according to the chassis attitude change, and realize stable control of vehicle height; (2) The present invention integrates a drive cleaning motor, a negative pressure fan and a rotating tempered glass frame structure, which can automatically perform cleaning action before detection. The negative pressure drive cylinder slides to drive the push-pull beam rod to open the protective plate, and at the same time the tempered glass rotates to use centrifugal force to remove dirt. This structure can effectively prevent dust and mud from hindering laser transmission, and greatly improve the reliability and life of detection. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure at the opening window of the present invention.

[0012] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of the adjusting beam frame of the present invention.

[0014] Figure 4 This is a schematic diagram of the three-sided reflecting mirror structure of the present invention.

[0015] Figure 5 This is a schematic diagram of the tempered glass fixed circular frame structure of the present invention.

[0016] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0017] Figure 7 This is a schematic diagram of the protective plate structure of the present invention.

[0018] In the diagram: 001-Base plate; 002-Opening window; 003-Protective plate; 004-Control panel; 005-Slide track; 006-Tempered glass fixing frame; 007-Tempered glass; 008-Extension head; 009-Drive pulley; 010-Transmission belt; 011-Negative pressure drive cylinder bracket; 012-Driven pulley frame; 013-Adjusting bracket; 014-Adjusting crossbeam frame; 015-Scanning motor; 016-Three-sided reflector body; 017-Laser rangefinder; 018-Swing arm; 019-Adjusting electric cylinder; 020-Outer shell; 021-Inner bracket; 022-Elastic rope; 023-Push-pull linkage; 024-Drive cleaning motor; 025-Negative pressure fan; 026-Negative pressure drive cylinder; 027-Push-pull beam rod; 028-Sliding guide rod. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-7 The technical solution of the present invention will be further illustrated through specific embodiments.

[0020] This invention provides a dynamic ground clearance monitoring device for an electromagnetic suspension system, comprising a control panel 004, a reference base plate 001 fixedly mounted on the lower surface of the control panel 004, an opening window 002 at the center of the reference base plate 001, a gap between the reference base plate 001 and the control panel 004, and two symmetrical protective plates 003 slidably disposed in the gap, each protective plate 003 having an extension head 008 fixedly mounted thereon; and two symmetrical sliding tracks are provided on the control panel 004. 005, wherein two extension heads 008 are slidably mounted in two slide rails 005 respectively; a tempered glass fixing frame 006 is rotatably embedded in the center of the control panel 004, and a tempered glass 007 is concentrically fixed inside the tempered glass fixing frame 006; a driven pulley frame 012 is also coaxially fixed on the tempered glass fixing frame 006; a rotatable three-sided reflector 016 is set above the tempered glass 007, and a laser rangefinder 017 is set on the side of the three-sided reflector 016. The laser rangefinder 017 contains a laser emitter and a laser receiver. The light emitted by the laser emitter can be reflected to the ground by any one of the three-sided reflector 016, and at the same time, the three-sided reflector 016 can reflect the reflected light from the ground back to the laser receiver. The three-sided reflector 016 is rotatably mounted on the adjusting beam frame 014. A scanning motor 015 for driving the rotation of the three-sided reflector 016 is fixedly mounted on the adjusting beam frame 014. A laser rangefinder 017 is fixedly mounted on the adjusting beam frame 014. The adjusting beam frame 014 is rotatably mounted on two symmetrically arranged adjusting brackets 013, which are fixed to the control panel 004. A swing arm 018 is rotatably mounted on one of the adjusting brackets 013, and the swing arm 018 is coaxially and fixedly connected to the adjusting beam frame 014. An adjusting electric cylinder 019 is also movably mounted on the control panel 004. The telescopic cylinder end of the adjusting electric cylinder 019 is movably connected to the control panel 004, and the telescopic rod end of the adjusting electric cylinder 019 is movably connected to the end of the swing arm 018 away from the adjusting bracket 013.

[0021] A drive cleaning motor 024 is also fixedly mounted on the control panel 004. A drive pulley 009 is fixedly mounted on one end of the output shaft of the drive cleaning motor 024. The drive pulley 009 and the driven pulley frame 012 are connected by a transmission belt 010. A negative pressure fan 025 is fixedly mounted on the other end of the drive cleaning motor 024. A housing 020 is fixedly fastened to the control panel 004. An inner bracket 021 is fixedly mounted on the inner wall of the housing 020. A negative pressure drive cylinder bracket 011 is fixedly mounted on the inner bracket 021. A negative pressure drive cylinder 026 is slidably mounted on the negative pressure drive cylinder bracket 011. A vent is provided at the top of the negative pressure drive cylinder 026. The negative pressure fan 025 is coaxially positioned at the bottom inside the negative pressure drive cylinder 026. Two parallel sliding guide rods 028 are fixedly installed on the inner support 021. Push-pull beam rods 027 are slidably sleeved on the two guide rods 028. Elastic ropes 022 are elastically connected to both ends of the push-pull beam rods 027 and the two edges of the inner support 021, used to pull the push-pull beam rods 027 towards contact with the inner support 021. The two ends of the push-pull beam rods 027 are movably connected to the two extension heads 008 via push-pull connecting rods 023; the push-pull beam rods 027 are also fixedly connected to the bottom of the outer surface of the negative pressure drive cylinder 026.

[0022] The working principle of the ground clearance dynamic monitoring device for an electromagnetic suspension system disclosed in this invention is as follows: The device is installed at the location of the four electromagnetic suspensions on the vehicle chassis, or only one can be installed, depending on the specific configuration of the vehicle chassis. Specifically, the lower surface of the reference base plate 001 is installed flush with the lower surface of the chassis. Especially for electric new energy vehicles, the lower surface of the reference base plate 001 is flush with the lower guard plate of the battery pack to monitor the distance between the battery pack and the ground in real time.

[0023] In use, first, the adjusting beam frame 014 is tilted. The specific tilt angle can be controlled by the adjusting electric cylinder 019. The extension rod of the adjusting electric cylinder 019 drives the swing arm 018 to swing on the adjusting bracket 013. The swing arm 018 swings synchronously with the adjusting beam frame 014 to change the swing angle of the three-sided reflector 016 on the adjusting beam frame 014. The laser rangefinder 017 emits a laser beam that shines on the three-sided reflector 016 and is then reflected by the three-sided reflector 016. The reflected laser beam passes through the tempered glass 007 and shines obliquely onto the ground. The ground reflects the laser beam, which then passes through tempered glass 007 and is reflected again by three reflective mirrors 016. These mirrors then reflect the beam to the laser receiver inside the laser rangefinder 017. By filtering the received beam for information such as frequency and wavelength, only light rays with the same parameters as the beam emitted by the laser transmitter are retained. The propagation time of the light rays is used to determine their path, and dividing this by two yields the distance between the tempered glass 007 and the ground (subtracting the propagation path above the tempered glass 007, which is a fixed length). This information is used to adjust and control the electromagnetic suspension in real time to ensure the vehicle maintains a stable driving posture. Simultaneously, the scanning motor 015 starts, causing the three-sided reflector 016 to rotate. The three sides of the three-sided reflector 016 will alternately reflect the laser emitted by the laser rangefinder 017. Since the angle between any plane of the three-sided reflector 016 and the laser emitted by the laser rangefinder 017 is in a changing state, the angle at which the three-sided reflector 016 reflects the laser will also change. Combined with the rotation of the three-sided reflector 016, a line can be projected on the ground. Combined with the movement of the vehicle, the distance between the entire vehicle chassis and the ground can be monitored.

[0024] Before use, the drive cleaning motor 024 needs to be started. The output shaft of the drive cleaning motor 024 drives the active pulley 009 and the negative pressure fan 025 to rotate. The rotation of the negative pressure fan 025 will cause the air inside the negative pressure drive cylinder 026 to move downward. At the same time, the through hole at the top of the negative pressure drive cylinder 026 will also allow air to enter. However, the negative pressure fan 025 is always in exhaust mode. This will cause the pressure inside the negative pressure drive cylinder 026 to be lower than the pressure below the negative pressure fan 025. At this time, the negative pressure drive cylinder 026 will slide downward on the negative pressure drive cylinder bracket 011, and then drive the push-pull beam rod 027 fixed thereto to move synchronously. The push-pull beam rod 027 drives the two extension heads 008 to slide in the slide rail 005 through the two push-pull connecting rods 023, and then drive the two corresponding protective plates 003 to move away from each other, so that the protective plates 003 are removed from under the tempered glass 007. Simultaneously, the rotation of the active pulley 009 will drive the tempered glass fixed circular frame 006 and the tempered glass 007 to rotate via the transmission belt 010. The rotation of the tempered glass 007 will cause the stains attached to its surface (such as mud on the road on a rainy day) to rotate along with it, thereby throwing away the stains attached to the lower surface of the tempered glass 007 through centrifugal force, keeping the surface of the tempered glass 007 clean and keeping the tempered glass 007 transparent. The bottom edge of the tempered glass fixed circular frame 006 that contacts the tempered glass 007 is provided with a chamfer. This chamfer is used to guide the stains that are separated and thrown off from the tempered glass 007 to move in an inclined direction.

Claims

1. A dynamic ground clearance monitoring device for an electromagnetic suspension system, characterized in that: The system includes a control panel (004), a base plate (001) is fixedly installed on the lower surface of the control panel (004), an opening window (002) is provided in the center of the base plate (001), a gap is left between the base plate (001) and the control panel (004), and two symmetrical protective plates (003) are slidably arranged in the gap, and an extension head (008) is fixedly installed on each protective plate (003). Two symmetrical slide rails (005) are provided on the control panel (004), and two extension heads (008) are slidably set in the two slide rails (005); A tempered glass fixing frame (006) is rotatably embedded in the center of the control panel (004). Tempered glass (007) is concentrically fixed inside the tempered glass fixing frame (006). A driven pulley frame (012) is also coaxially fixed on the tempered glass fixing frame (006). A rotatable three-sided reflector (016) is provided above the tempered glass (007), and a laser rangefinder (017) is provided on the side of the three-sided reflector (016).

2. The ground clearance dynamic monitoring device for an electromagnetic suspension system according to claim 1, characterized in that: The three-sided reflector body (016) is rotatably mounted on the adjusting beam frame (014). The adjusting beam frame (014) is fixedly mounted with a scanning motor (015) for driving the rotation of the three-sided reflector body (016). The laser rangefinder (017) is fixedly mounted on the adjusting beam frame (014). The adjusting beam frame (014) is rotatably mounted on two symmetrically arranged adjusting brackets (013). The two adjusting brackets (013) are fixed on the control panel (004).

3. The ground clearance dynamic monitoring device for an electromagnetic suspension system according to claim 2, characterized in that: A swing arm (018) is rotatably mounted on one of the adjustment brackets (013). The swing arm (018) is coaxially fixedly connected to the adjustment beam frame (014). An adjustment cylinder (019) is also movably mounted on the control panel (004). The telescopic cylinder end of the adjustment cylinder (019) is movably connected to the control panel (004). The telescopic rod end of the adjustment cylinder (019) is movably connected to the end of the swing arm (018) away from the adjustment bracket (013).

4. The ground clearance dynamic monitoring device for an electromagnetic suspension system according to claim 3, characterized in that: A drive cleaning motor (024) is also fixedly installed on the control panel (004). One end of the output shaft of the drive cleaning motor (024) is fixedly installed with a drive pulley (009). The drive pulley (009) and the driven pulley frame (012) are connected by a transmission belt (010). The other end of the drive cleaning motor (024) is fixedly installed with a negative pressure fan (025).

5. The ground clearance dynamic monitoring device for an electromagnetic suspension system according to claim 4, characterized in that: A housing (020) is fixedly fastened on the control panel (004). An inner bracket (021) is fixedly installed on the inner wall of the housing (020). A negative pressure drive cylinder bracket (011) is fixedly installed on the inner bracket (021). A negative pressure drive cylinder (026) is slidably installed on the negative pressure drive cylinder bracket (011). A vent hole is opened on the top of the negative pressure drive cylinder (026). A negative pressure fan (025) is coaxially arranged at the bottom of the inner side of the negative pressure drive cylinder (026).

6. The ground clearance dynamic monitoring device for an electromagnetic suspension system according to claim 5, characterized in that: Two parallel sliding guide rods (028) are fixedly installed on the inner support (021). Push-pull beam rods (027) are slidably sleeved on the two sliding guide rods (028). Both ends of the push-pull beam rods (027) are elastically connected to the two edges of the inner support (021) with elastic ropes (022) for pulling the push-pull beam rods (027) to move in the direction of contact with the inner support (021).

7. The ground clearance dynamic monitoring device for an electromagnetic suspension system according to claim 6, characterized in that: The two ends of the push-pull beam rod (027) are movably connected to the two extension heads (008) via push-pull connecting rods (023); wherein the push-pull beam rod (027) is also fixedly connected to the bottom of the outer surface of the negative pressure drive cylinder (026).

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