Angle monitoring module of suspension system
By using a module with magnetic strip and laser ranging sensor in the suspension system of the steel spring, the deformation angle of the steel spring is directly monitored, and the complexity and accuracy of monitoring in the prior art is solved, achieving efficient and accurate Angle detection.
Patent Information
- Application Number
- CN202421222414.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing steel sheet spring stiffness test device cannot directly monitor the deformation angle of the suspension system, and the test equipment is complex, costly, low efficiency, and the accuracy of the monitoring data is questioned.
Use the upper plate with magnetic suction strips and the lower plate with equal pitch mounting holes to install a laser ranging sensor, attach it to the bottom of the connecting beam through the magnetic suction strips, and use the laser ranging sensor to obtain the distance between the central axis and the measurement point. Calculate the included angle data to realize angle monitoring.
The simplicity, convenience and high accuracy of angle monitoring are achieved, and the need to specially design complex equipment is avoided. The monitoring results are accurate, and the equipment can be installed and used and reused.
Smart Images
Figure CN222298750U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile suspension angle monitoring, in particular to an angle monitoring module of a suspension system. Background Art
[0002] The suspension system is a system used by automobiles to reduce shock between the vehicle body and the vehicle tires, including automobile suspension composed of springs and shock absorbers and truck suspension composed of bundled leaf springs. Especially for truck suspension, the structural strength and rigidity of leaf springs are important properties, which directly affect the load safety of the truck.
[0003] In practical applications, before a leaf spring leaves the factory, it is necessary not only to inspect its appearance but also to inspect its strength and rigidity. For example, a leaf spring stiffness test device disclosed in CN106556499B simulates dynamic load conditions by fixing the leaf spring left and right with inconsistent heights. The thrust rod acts on the leaf spring assembly, and the pressure sensor records the load. The new variable of the leaf spring under the fixed load is measured, and the stiffness characteristic curve of the floor spring under the loading and unloading state is further drawn. However, this solution is only the difference between the loading force provided by the exciter and the deformation force of the air bag by the force applied to the leaf spring by the thrust rod. The scheme has the following disadvantages: (1) the deformation angle of the leaf spring suspension is not directly monitored, but the difference in deformation force is measured based on the form of pressure applied by the thrust rod in the middle; (2) the thrust rod is directly used to apply pressure in the middle, and the leaf spring is measured in an inverted form, which is different from the actual force situation of the leaf spring, and the accuracy of the monitoring data is questionable; (3) complex monitoring equipment is specially set up to monitor the disassembled leaf spring, which has high testing cost, low efficiency, slow speed, and is inconvenient to install and disassemble. Therefore, in response to the above problems, this technical scheme proposes an angle monitoring module for the suspension system. Utility Model Content
[0004] The utility model provides an angle monitoring module for a suspension system, comprising an upper plate with a magnetic strip and a lower plate on which laser distance measuring sensors are installed through equally spaced installation holes, wherein the upper plate is provided with distance scale scales, a center axis mark and marking points for positioning the installation holes; when in use, the upper plate is directly attached to the bottom surface of a connecting beam through the magnetic strip, so that a first laser distance measuring sensor in the middle faces a buffer block, and second laser distance measuring sensors are installed in the installation holes on both sides as required, the distance of the center axis can be obtained through the first laser distance measuring sensor, and the distance from a point to be measured to the second laser distance measuring sensor can be obtained through the second laser distance measuring sensor, and the height difference between the corresponding point and the center position of the buffer block can be obtained through subtraction, and then the specific installation position of the second laser distance measuring sensor can be determined. The scale ruler can obtain the lateral distance between the specific point and the center position of the buffer block, that is, the angle data formed between the specific point and the center position of the buffer block can be obtained; the angle monitoring module of the suspension system can directly obtain the angle change between the specific point and the center position of the buffer block through the height data and the lateral scale distance obtained by the laser ranging sensor. The monitoring structure is simple, and the installation and use are convenient and fast. There is no need to specially design complex and costly equipment to remove the leaf spring for special monitoring. It can be installed and used at the same time, and can be directly removed and reused after the monitoring is completed; and the specific point can be selected through the installation hole position of the second laser ranging sensor, the selection is convenient, and because it is directly installed and used on the vehicle, the accuracy of the monitoring result is high; in summary, the problems in the background technology are solved.
[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model discloses an angle monitoring module for a suspension system, comprising an upper plate, a lower plate connected to the bottom of the upper plate through a support, a magnetic strip arranged transversely on the surface of the upper plate and magnetically adsorbed and connected to the bottom surface of a truck connecting beam, mounting holes arranged at equal intervals on the surface of the lower plate, a first laser distance measuring sensor installed in the mounting hole at the middle position of the lower plate, and a second laser distance measuring sensor installed in the mounting holes on both sides of the lower plate;
[0007] The ranging head of the first laser ranging sensor is facing the buffer block of the truck connecting beam; the lower plate is arranged flush with the side wall of the leaf spring installed on the buffer block; the ranging head of the second laser ranging sensor is facing the curved surface of the side of the leaf spring.
[0008] Furthermore, the length of the lower plate is shorter than the distance between two connecting ears connected to the upper part of the leaf spring.
[0009] Furthermore, the mounting holes at the bottom of the lower plate are symmetrically arranged with respect to the mounting holes at the middle position.
[0010] Furthermore, a threaded column is provided on the top of the first laser ranging sensor and the second laser ranging sensor, and the threaded column is fastened to the mounting hole by a nut.
[0011] Furthermore, a central axis mark is provided in the middle of the surface of the upper plate, and distance scale marks with increasing numbers are provided on both sides of the central axis mark; the central axis mark and the distance scale marks are both located on one side of the magnetic attraction strip.
[0012] Furthermore, a marking point corresponding to the mounting hole is provided on the surface of the upper plate on the other side of the magnetic strip.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] (1) Easy installation and use: The angle monitoring module of the suspension system includes an upper plate with a magnetic strip and a lower plate with laser distance sensors installed through equally spaced mounting holes. The upper plate is provided with distance scales, a center axis mark, and marking points for positioning the mounting holes. When in use, it is directly attached to the bottom surface of the connecting beam through the magnetic strip so that the first laser distance sensor in the middle faces the buffer block. According to the value of the laser distance sensor, the real-time data of the angle of the corresponding point can be directly obtained manually or through a right-angle triangle relationship. The structure is simple and the installation and use are convenient and quick.
[0015] (2) This solution does not require the design of complex and costly equipment to monitor the leaf spring after it is removed. It can be installed and used immediately, and can be directly removed and reused after monitoring is completed.
[0016] (3) The specific point of this solution can be selected by the position of the installation hole of the second laser ranging sensor, which is convenient to select. Moreover, since it is directly installed and used on the vehicle, the monitoring result is highly accurate.
[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 This is a structural schematic diagram of an angle monitoring module of a suspension system of the utility model;
[0020] Figure 2 for Figure 1Structural diagram from perspective A;
[0021] Figure 3 for Figure 1 Schematic diagram of the structure from the perspective of middle B;
[0022] Figure 4 A scene diagram showing the angle monitoring module of the suspension system of this solution combined with the bottom suspension system of the truck to monitor the angle change of the leaf spring;
[0023] Figure 5 for Figure 4 The main view of the structure;
[0024] Figure 6 In this specific embodiment Figure 5 Distance marking and illustration diagram;
[0025] Figure 7 The structural diagram of the suspension system composed of leaf springs at the bottom of the existing truck;
[0026] Figure 8 for Figure 7 The main view of the structure;
[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0028] 1-upper plate, 101-magnetic strip, 102-marking point, 103-distance scale, 104-central axis mark, 2-lower plate, 201-pillar, 202-mounting hole, 3-second laser ranging sensor, 301-nut, 4-first laser ranging sensor, 5-leaf spring, 501-U-bolt, 502-buffer block, 503-front axle, 504-connecting ear, 505-downward pressure bearing beam, 506-connecting beam. DETAILED DESCRIPTION
[0029] 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 of 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.
[0030] In the description of the present invention, it should be understood that terms such as "bottom", "lateral", "bottom surface", "surface", "equally spaced", "middle position", "both sides" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0031] like Figure 7-8 As shown, it is a structural schematic diagram of a suspension system composed of leaf springs at the bottom of an existing truck, which includes two downward pressure bearing beams 505 arranged at the bottom of the truck cargo box, a connecting beam 506 arranged at the bottom of the downward pressure bearing beam 505, and a leaf spring assembly composed of a plurality of leaf springs 5 of different lengths installed at both ends of the connecting beam 506 through connecting ears 504 and bundled together by U-bolts 501, wherein the leaf spring 5 is convex in the middle of the arc, and is locked and fixed with a buffer block 502 by a U-bolt, and the buffer block 502 is connected through a front axle 503; the characteristics of the suspension system of the leaf spring are: the leaf spring is symmetrical along the center position of the buffer block 502, and the extension line between the center point of the connecting beam 506 and the buffer block 502 forms a vertical structure with the connecting beam 506; therefore, based on the above characteristics and scenarios, an angle detection module of a suspension system of the present technical solution is proposed.
[0032] See also Figure 1-6 As shown, the utility model is an angle monitoring module of a suspension system, comprising an upper plate 1, a lower plate 2 connected to the bottom of the upper plate 1 through a support 201, a magnetic strip 101 arranged transversely on the surface of the upper plate 1 and magnetically adsorbed and connected to the bottom surface of the truck connecting beam 506, mounting holes 202 arranged at equal intervals on the surface of the lower plate 2, a first laser ranging sensor 4 installed in the mounting hole 202 at the middle position of the lower plate 2, and a second laser ranging sensor 3 installed in the mounting holes 202 on both sides of the lower plate 2;
[0033] The ranging head of the first laser ranging sensor 4 is facing the buffer block 502 of the truck connecting beam 506; the lower plate 2 is arranged flush with the side wall of the leaf spring 5 installed on the buffer block 502; the ranging head of the second laser ranging sensor 3 is facing the curved surface of the side of the leaf spring 5; the first laser ranging sensor 4 and the second laser ranging sensor 3 are of the same size and model; the laser ranging sensor can directly obtain the distance between the head and the ranging point, and display it numerically. In this embodiment, a ready-made laser ranging sensor that can be directly purchased is used, and the specific working principle and structure are not repeated in this scheme specification.
[0034] The length of the lower plate 2 is shorter than the distance between the two connecting ears 504 connected to the upper part of the leaf spring 5 ; thus, the upper plate 1 can be directly attached to the lower part of the connecting beam 506 through the magnetic strip 101 .
[0035] The mounting holes 202 at the bottom of the lower plate 2 are symmetrically arranged with respect to the mounting holes 202 at the middle position; that is, the corresponding spacings are the same, and symmetry can be ensured.
[0036] The first laser ranging sensor 4 and the second laser ranging sensor 3 are provided with threaded columns on their tops, and the threaded columns are fastened to the mounting holes 202 via nuts 301 .
[0037] A central axis mark 104 is provided in the middle of the surface of the upper plate 1 , and distance scale marks 103 with increasing numbers are provided on both sides of the central axis mark 104 ; the central axis mark 104 and the distance scale marks 103 are both located on one side of the magnetic strip 101 .
[0038] A marking point 102 corresponding to the mounting hole 202 is provided on the surface of the upper plate 1 on the other side of the magnetic strip 101 .
[0039] like Figure 6 As shown, a measurement method is demonstrated:
[0040] Before monitoring, determine the specific monitoring point, and install the second laser ranging sensor 3 in the corresponding mounting hole on the lower plate 2 above the corresponding point according to the distance of the point. In this scheme, two mounting holes at different positions on both sides of the first laser ranging sensor 4 are used, and the distances x1 and x2 to the first laser sensor 4 are read out according to the distance scale.
[0041] Then, the magnetic strip 101 on the upper plate 1 is attached to the bottom surface of the connecting beam by magnetic attraction, so that the first laser sensor 4 faces the buffer block 502, that is, the distance H measured by the first laser sensor 4 is kept perpendicular to x1 and x2; the distances h1 and h2 between the two points are respectively obtained by the second laser sensor 3;
[0042] Different weights are placed on the truck cargo box step by step, and the strength limit of the leaf spring 5 is measured, which is mainly judged by the change in the angle between the point and the center point of the buffer block 502 and the horizontal plane. As the weight becomes heavier, the corresponding angle will become smaller.
[0043] In this embodiment:
[0044] The angle between the line connecting the first point to the center point of the buffer block 502 and the horizontal line is θ1, and the specific value of the angle is obtained by an inverse tangent trigonometric function calculator, and the input side lengths are x1 and H-h1 respectively;
[0045] The angle between the line connecting the corresponding second point to the center point of the buffer block 502 and the horizontal line is θ2, and the specific value of the angle is obtained by an inverse tangent trigonometric function calculator, and the input side lengths are x1 and H-h2 respectively;
[0046] Since the distances x1 and x2 remain unchanged, when the distances H, h1, and h2 change, the corresponding angle changes can be continuously monitored in real time, thereby providing technical support for the structural strength detection of the suspension system of the leaf spring structure.
[0047] The technical solution includes an upper plate with a magnetic strip and a lower plate on which laser distance measuring sensors are installed through equally spaced installation holes. The upper plate is provided with distance scale scales, center axis marks and marking points for positioning the installation holes. When in use, it is directly attached to the bottom surface of the connecting beam through the magnetic strip, so that the first laser distance measuring sensor in the middle faces the buffer block, and the second laser distance measuring sensor is installed in the installation holes on both sides as needed. The distance to the center axis can be obtained through the first laser distance measuring sensor, and the distance from the point to be measured to the second laser distance measuring sensor can be obtained through the second laser distance measuring sensor. The height difference between the corresponding point and the center position of the buffer block can be obtained by subtracting them, and then the specific installation position of the second laser distance measuring sensor can be used to obtain the height difference. The graduated ruler can obtain the lateral distance between a specific point and the center position of the buffer block, that is, the angle data formed between the specific point and the center position of the buffer block can be obtained; the angle monitoring module of the suspension system can directly obtain the angle change between the specific point and the center position of the buffer block through the height data and the lateral ruler distance obtained by the laser ranging sensor. The monitoring structure is simple, and the installation and use are convenient and fast. There is no need to specially design complex and costly equipment to remove the leaf spring for special monitoring. It can be installed and used at any time, and can be directly removed and reused after the monitoring is completed; and the specific point can be selected through the installation hole position of the second laser ranging sensor, the selection is convenient, and because it is directly installed and used on the vehicle, the accuracy of the monitoring result is high.
[0048] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An angle monitoring module for a suspension system, characterized in that: The invention comprises an upper plate (1), a lower plate (2) connected to the bottom of the upper plate (1) via a support (201), a magnetic strip (101) arranged transversely on the surface of the upper plate (1) and magnetically connected to the bottom surface of a truck connecting beam (506), mounting holes (202) arranged at equal intervals on the surface of the lower plate (2), a first laser distance measuring sensor (4) installed in the mounting hole (202) at the middle position of the lower plate (2), and a second laser distance measuring sensor (3) installed in the mounting holes (202) on both sides of the lower plate (2); The distance measuring head of the first laser distance measuring sensor (4) is directly opposite to the buffer block (502) of the truck connecting beam (506); the lower plate (2) is arranged flush with the side wall of the leaf spring (5) installed on the buffer block (502); and the distance measuring head of the second laser distance measuring sensor (3) is directly opposite to the curved surface of the side of the leaf spring (5).
2. The angle monitoring module of a suspension system according to claim 1, characterized in that: The length of the lower plate (2) is shorter than the distance between the two connecting ears (504) connected to the upper part of the leaf spring (5).
3. The angle monitoring module of a suspension system according to claim 1, characterized in that: The mounting holes (202) at the bottom of the lower plate (2) are symmetrically arranged with respect to the mounting holes (202) at the middle position.
4. The angle monitoring module of a suspension system according to claim 1, characterized in that: A threaded column is provided on the top of the first laser distance measuring sensor (4) and the second laser distance measuring sensor (3), and the threaded column is fastened to the mounting hole (202) via a nut (301).
5. The angle monitoring module of a suspension system according to claim 1, characterized in that: A central axis mark (104) is provided in the middle of the surface of the upper plate (1), and distance scale marks (103) with increasing numbers are provided on both sides of the central axis mark (104); the central axis mark (104) and the distance scale marks (103) are both located on one side of the magnetic attraction strip (101).
6. The angle monitoring module of a suspension system according to claim 5, characterized in that: A marking point (102) corresponding to the mounting hole (202) is provided on the surface of the upper plate (1) at the other side of the magnetic attraction strip (101).