A drum test bench vehicle status deviation monitoring device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]本实用新型的目的在于提供一种转鼓台架车辆状态偏移监控装置，以解决上述背景技术中提出的采用扣下，或者和车体之间间隙抠出的方式，将磁吸标定板取下，而采用上述方式，会导致磁吸条和标顶板之间从连接处分离的情况发生的问题
[0020]通过安装固定板和把手，固定板安装在磁条内部，当需要将吸附在车子上的反射板取下时，可通过捏住把手向外拉动，以通过固定板将反射板和磁条与车子之间分离，施力通过固定板均匀地作用于整个磁吸标定板，使磁吸标定板以相对平稳、均匀的方式与车体分离，有效避免了磁吸条与反射板之间因受力不均而分离，从而保护了磁吸标定板的结构完整性，延长其使用寿命。
Smart Images
Figure CN224636657U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of rotary drum test benches, specifically relating to a rotary drum test bench vehicle status deviation monitoring device. Background Technology
[0002] To monitor the vehicle's three-dimensional offset relative to the drum stand in real time, laser rangefinders are installed at fixed positions on the right side of the vehicle and at the geometric center of its rear end. The laser rangefinders are integrated into an automatic lifting platform along the Z-axis. By attaching a high-reflectivity magnetic calibration plate to specific measurement points on the vehicle body, the system uses dual laser beams for spatial coordinate initialization, achieving dynamic position tracking.
[0003] However, when the magnetic calibration plate is attached to a specific measurement point on the vehicle body, it is inconvenient to remove. It is often removed by clipping it off or by prying it out from the gap between it and the vehicle body. However, using the above methods can cause the magnetic strip and the top plate to separate from the connection point. Utility Model Content
[0004] The purpose of this utility model is to provide a vehicle status deviation monitoring device for a rotary drum test bench, in order to solve the problem mentioned in the background art of removing the magnetic calibration plate by snapping it off or prying it out of the gap between it and the vehicle body, which would cause the magnetic strip and the top plate to separate from the connection point.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vehicle status deviation monitoring device for a drum stand, comprising a workbench and multiple drum bodies installed on the lower side of the workbench;
[0006] A vehicle is arranged between the multiple drum bodies;
[0007] Laser rangefinders are installed on the left and rear sides of the vehicle;
[0008] The vehicle has reflectors on the left outer wall near the front and rear sides and the rear outer wall to emit lasers from the laser rangefinder. Each of the reflectors has a magnetic strip at one end for adsorption and fixation with the vehicle. Each of the laser rangefinders has a refracting glass at one end to receive the reflected light.
[0009] Each of the magnetic strips has a fixing plate inside, and a handle is fixedly connected to the lower outer wall of each fixing plate.
[0010] Preferably, each of the plurality of magnetic strips has a groove inside to restrict the installation position of the fixing plate.
[0011] Preferably, each of the plurality of fixing plates has a stop bar at one end to limit the position of the fixing plate in the groove.
[0012] Preferably, the plurality of fixing plates and baffles are fixedly connected to the reflector and magnetic strip by adhesive bonding.
[0013] Preferably, both the fixing plate and the baffle are made of polyethylene plastic material.
[0014] Preferably, each of the plurality of laser rangefinders has a fixed frame on one side, and each of the plurality of fixed frames has a stepper motor inside.
[0015] Preferably, each of the multiple stepper motors has a gear at one end, and each of the multiple gears has a rack meshing on one side to limit the position of the laser rangefinder.
[0016] Preferably, two guide rods are fixedly connected between the inner walls of the upper and lower ends of the plurality of fixed frames to limit the movement direction of the rack, and shock-absorbing bases are fixedly connected to the outer walls of the lower ends of the plurality of fixed frames.
[0017] Preferably, through holes are provided at the four corners of the upper outer wall of the workbench to expose the main body of the drum, so that the main body of the drum can contact the vehicle.
[0018] Preferably, an optical signal processor is provided on one side of each of the plurality of laser rangefinders.
[0019] Compared with the prior art, this utility model provides a vehicle status deviation monitoring device for a rotary drum test bench, which has the following beneficial effects:
[0020] By installing a fixing plate and a handle, the fixing plate is installed inside the magnetic strip. When it is necessary to remove the reflector that is attached to the car, the handle can be squeezed and pulled outward to separate the reflector and magnetic strip from the car through the fixing plate. The force is applied evenly to the entire magnetic calibration plate through the fixing plate, so that the magnetic calibration plate separates from the car body in a relatively stable and uniform manner. This effectively avoids the separation between the magnetic strip and the reflector due to uneven force, thereby protecting the structural integrity of the magnetic calibration plate and extending its service life. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a vehicle status deviation monitoring device for a rotary drum test bench according to the present invention.
[0022] Figure 2 This is a front view structural diagram of a vehicle status deviation monitoring device for a rotary drum test stand according to the present invention.
[0023] Figure 3 This is a schematic diagram of a partial structure of the laser rangefinder of this utility model.
[0024] Figure 4This is a partial structural diagram of the fixed frame area of this utility model.
[0025] Figure 5 This is a partial structural diagram of the reflector area of this utility model.
[0026] In the diagram: 1. Workbench; 2. Cart; 3. Fixed frame; 4. Through hole; 5. Drum body; 6. Laser rangefinder; 7. Shock-absorbing base; 8. Refraction glass; 9. Reflector; 10. Rack; 11. Stepper motor; 12. Gear; 13. Guide rod; 14. Magnetic strip; 15. Groove; 16. Fixed plate; 17. Stop bar; 18. Handle. Detailed Implementation
[0027] 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.
[0028] This utility model provides, for example Figure 1-5 The vehicle status deviation monitoring device shown includes a workbench 1 and multiple drum bodies 5 installed on the lower side of the workbench 1.
[0029] A car 2 is arranged between multiple rotating drum bodies 5;
[0030] Laser rangefinders 6 are installed on the left and rear sides of vehicle 2;
[0031] Reflectors 9 are installed on the left outer wall of vehicle 2 near the front and rear sides and the rear outer wall to emit laser light emitted by laser rangefinder 6. Each reflector 9 has a magnetic strip 14 at one end for adsorption and fixation to vehicle 2. Each laser rangefinder 6 has a refracting glass 8 at one end to receive reflected light. Multiple drum bodies 5 are installed under the worktable 1, ensuring they are securely installed and can rotate normally. Vehicle 2 is placed between the drum bodies 5, and the vehicle position is adjusted. Laser rangefinders 6 are installed on the left and rear sides of vehicle 2, ensuring they are securely installed and at the correct angle to accurately emit laser light onto and receive reflected light from the reflectors 9. Reflectors 9 with magnetic strips 14 are adsorbed and fixed to the left outer wall of vehicle 2 near the front and rear sides and the rear outer wall using the magnetic strips 14, ensuring accurate positioning and effective laser reflection. An automatic lifting platform is installed below the laser rangefinder 6 at a suitable position, ensuring the laser rangefinder 6 can move along the Z-axis. The height is flexibly adjusted, and the laser rangefinder 6 is activated. The initial distance between the laser rangefinder 6 and the reflector 9 is measured to obtain the initial position information of the vehicle relative to the drum stand. At the same time, based on the horizontal distance between the two reflectors 9 on the side of the vehicle and the lateral distance difference measured by the laser rangefinder 6, the initial roll angle of the vehicle body is calculated using a formula. During the rotation of the vehicle 2 driven by the drum body 5, the laser rangefinder 6 continuously emits a modulated continuous laser beam towards the reflector 9 and receives the reflected laser. Based on the phase difference between the reflected light and the emitted light, the distance change between the laser rangefinder 6 and the reflector 9 is calculated in real time, thereby monitoring the three-dimensional offset of the vehicle in real time. At the same time, based on the real-time change of the lateral distance difference, the calculation result of the roll angle of the vehicle body is updated in real time. The system processes the data measured by the laser rangefinder 6 in real time, calculates the offset and roll angle of the vehicle, and transmits these data to the monitoring terminal. The monitoring terminal analyzes and displays the data, and the operator can view the status of the vehicle relative to the drum stand in real time.
[0032] Multiple magnetic strips 14 have internal fixing plates 16, and handles 18 are fixedly connected to the lower outer walls of the multiple fixing plates 16. By pinching the handles 18, the reflector 9 can be removed from the vehicle 2 using the fixing plates 16, thus properly storing the reflector 9. This facilitates the installation and removal of the reflector 9 and avoids the problem that the magnetic strips 14 and the reflector 9 may separate from the connection point due to the traditional removal method, thereby protecting the structural integrity of the reflector 9.
[0033] like Figure 5 As shown, each of the multiple magnetic strips 14 has a groove 15 inside to limit the installation position of the fixing plate 16, and each of the multiple fixing plates 16 has a stop bar 17 at one end to limit the position of the fixing plate 16 in the groove 15.
[0034] The grooves 15 inside the multiple magnetic strips 14 provide precise installation position definition for the fixing plate 16. The baffle 17 interacts with the end of the groove 15 to prevent the fixing plate 16 from accidentally coming out of the groove 15, and at the same time prevents the fixing plate 16 and the magnetic strips 14 from separating.
[0035] like Figure 5 As shown, multiple fixing plates 16 and baffles 17 are fixedly connected to the reflector 9 and magnetic strips 14 by adhesive bonding. The fixing plates 16 and baffles 17 are both made of polyethylene plastic material.
[0036] Plastic has a certain degree of hardness, which can prevent large-scale movements that could cause the adhesive to fail and separate when the reflector 9 is removed.
[0037] like Figure 4 As shown, each of the multiple laser rangefinders 6 has a fixed frame 3 on one side, each of the multiple fixed frames 3 has a stepper motor 11 inside, each of the multiple stepper motors 11 has a gear 12 at one end, and each of the multiple gears 12 has a rack 10 meshing on one side to limit the position of the laser rangefinder 6. Two guide rods 13 are fixedly connected between the inner walls of the upper and lower ends of the multiple fixed frames 3 to limit the movement direction of the rack 10. Each of the multiple fixed frames 3 has a shock-absorbing base 7 fixedly connected to the outer wall of the lower end.
[0038] By controlling the stepper motor 11, the laser rangefinder 6 is adjusted to a suitable initial measurement position through the transmission of the gear 12 and rack 10. The guide rod 13 ensures that the rack 10 drives the laser rangefinder 6 to move accurately to the designated position. The rotating drum body 5 drives the vehicle to operate, which will generate a certain amount of vibration. At the same time, there may be various vibration sources in the surrounding environment. The shock-absorbing base 7 can absorb and buffer these vibrations to prevent the vibration from being transmitted to the laser rangefinder 6, thus avoiding slight changes in the position of the laser rangefinder 6 due to vibration, which would affect the measurement accuracy.
[0039] like Figure 1 As shown, through holes 4 are provided inside the four corners of the upper outer wall of the workbench 1 to expose the drum body 5, so that the drum body 5 and the vehicle 2 can make contact. A light signal processor is provided on one side of each of the multiple laser rangefinders 6.
[0040] The laser rangefinder 6 emits a continuous laser beam modulated at a specific frequency, which shines on the reflector 9 and is reflected back. The optical signal processor set on one side of the laser rangefinder 6 is responsible for receiving the reflected optical signal and processing it.
[0041] The implementation principle of this embodiment is as follows: Multiple drum bodies 5 are installed under the workbench 1, ensuring the drum bodies 5 are securely installed and can rotate normally. The vehicle 2 is placed between the multiple drum bodies 5, and the vehicle position is adjusted. Laser rangefinders 6 are installed on the left and rear sides of the vehicle 2, ensuring they are securely installed and at the correct angle, accurately emitting laser light towards the reflector 9 and receiving reflected light. The reflector 9 with magnetic strips 14 is magnetically attached to the left outer wall of the vehicle 2 near the front and rear sides and the rear outer wall, ensuring the reflector 9 is accurately positioned and can effectively reflect the laser light. An automatic lifting platform is installed at a suitable position below the laser rangefinder 6, ensuring the laser rangefinder 6 can flexibly adjust its height in the Z-axis direction via the automatic lifting platform. The laser rangefinder 6 is activated, and the initial distance between it and the reflector 9 is measured to obtain the initial position information of the vehicle relative to the drum platform. Simultaneously, based on the horizontal distance between the two reflectors 9 on the side of the vehicle and the lateral distance difference measured by the laser rangefinder 6, the initial position information of the vehicle relative to the drum platform is obtained. The initial roll angle of the vehicle body is calculated using a formula. During the rotation of the vehicle 2 driven by the drum body 5, the laser rangefinder 6 continuously emits a modulated continuous laser beam towards the reflector 9 and receives the reflected laser beam. Based on the phase difference between the reflected and emitted light, the distance change between the laser rangefinder 6 and the reflector 9 is calculated in real time, thereby monitoring the three-dimensional offset of the vehicle in real time. At the same time, the calculation result of the roll angle of the vehicle body is updated in real time based on the real-time change of the lateral distance difference. The system processes the data measured by the laser rangefinder 6 in real time, calculates the offset and roll angle of the vehicle, and transmits these data to the monitoring terminal. The monitoring terminal analyzes and displays the data, and the operator can view the status of the vehicle relative to the drum platform in real time. By squeezing the handle 18, the reflector 9 is removed from the vehicle 2 using the fixing plate 16. The reflector 9 is properly stored, which facilitates the installation and removal of the reflector 9 and avoids the problem that the magnetic strip 14 and the reflector 9 may separate from the connection point due to the traditional removal method, thus protecting the structural integrity of the reflector 9.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vehicle status deviation monitoring device for a rotary drum stand, comprising a workbench (1) and multiple rotary drum bodies (5) installed on the lower side of the workbench (1); A vehicle (2) is arranged between the plurality of said drum bodies (5); Laser rangefinders (6) are installed on the left and rear sides of the vehicle (2); The outer wall of the left end of the vehicle (2) is provided with reflectors (9) near the front and rear sides and the outer wall of the rear end to emit lasers emitted by the laser rangefinder (6). One end of each of the reflectors (9) is provided with a magnetic strip (14) to be attached and fixed to the vehicle (2). One end of each of the laser rangefinders (6) is provided with a refracting glass (8) to receive the reflected light. characterized in that Each of the magnetic strips (14) has a fixing plate (16) inside, and each of the fixing plates (16) has a handle (18) fixedly connected to its lower outer wall.
2. A roll rig vehicle condition excursion monitoring device according to claim 1 characterised in that: Each of the magnetic strips (14) has a groove (15) inside to restrict the installation position of the fixing plate (16).
3. A roll rig vehicle condition excursion monitoring device according to claim 1 characterised in that: Each of the plurality of fixing plates (16) is provided with a stop bar (17) at one end to limit the position of the fixing plate (16) in the groove (15).
4. A roll rig vehicle condition excursion monitoring device according to claim 1 characterised in that: The multiple fixing plates (16) and baffles (17) are fixedly connected to the reflector (9) and magnetic strips (14) by adhesive bonding.
5. A roll rig vehicle condition excursion monitoring device according to claim 1, characterised in that: Both the fixing plate (16) and the baffle (17) are made of polyethylene plastic material.
6. A roll rig vehicle condition excursion monitoring device according to claim 1, characterised in that: Each of the laser rangefinders (6) has a fixed frame (3) on one side, and each of the fixed frames (3) has a stepper motor (11) inside.
7. A roll rig vehicle condition excursion monitoring apparatus according to claim 6, characterised in that: Each of the multiple stepper motors (11) has a gear (12) at one end, and a rack (10) meshes with one side of each of the multiple gears (12) to limit the position of the laser rangefinder (6).
8. A roll rig vehicle condition excursion monitoring device according to claim 6, characterised in that: Two guide rods (13) are fixedly connected between the inner walls of the upper and lower ends of the multiple fixed frames (3) to limit the movement direction of the rack (10), and shock-absorbing bases (7) are fixedly connected to the outer walls of the lower ends of the multiple fixed frames (3).
9. A roll rig vehicle condition excursion monitoring device according to claim 1, characterised in that: The upper outer wall of the workbench (1) is provided with through holes (4) at the four corners to expose the drum body (5) so that the drum body (5) and the vehicle (2) can make contact.
10. A roll rig vehicle condition excursion monitoring device according to claim 1, characterised in that: Each of the laser rangefinders (6) is equipped with an optical signal processor on one side.