Steering torque calibration device for steering wheel of motor vehicle

Abstract

The utility model provides a motor vehicle steering wheel steering torque calibration device which comprises a structural part, a driving part is arranged on one side of the structural part, a detection part is arranged on the other side of the structural part, and an installation part is arranged at the upper end of the detection part. The structural part comprises an operation table, a display screen arranged on the upper side of the operation table and a sliding groove formed in the upper side of the operation table. The detection piece comprises a torque sensor arranged in the operation table, a loading arm arranged on one side of the torque sensor, a moving plate arranged on one side of the loading arm in a sliding manner, a mounting table arranged on the upper side of the moving plate and a thrust rod arranged on the upper side of the mounting table; according to the utility model, by adopting a calibration method of the torquemeter, the conditions of unbalance loading, force arm change and the like when a traditional combined calibration method is adopted are avoided, the measurement precision is ensured, and the device can adapt to steering wheels of different models and specifications due to the modular design.

Description

Technical Field

[0001] This utility model belongs to the field of steering wheel torque calibration, specifically referring to a motor vehicle steering wheel torque calibration device. Background Technology

[0002] Ensuring that the steering torque of the steering wheel meets design standards is crucial during the manufacturing and maintenance of motor vehicles. Steering torque directly affects the driver's feel and vehicle safety. However, existing steering torque calibration devices have some shortcomings, leading to inefficiency and inaccuracy in practical applications.

[0003] Existing calibration devices often suffer from low precision in the fit between components, leading to significant errors during the calibration process and easily affecting the accuracy of calibration results. Secondly, most existing calibration devices are complex in structure and have numerous components, which not only increases manufacturing costs but also makes the operation cumbersome, hindering rapid and accurate calibration.

[0004] For example, Chinese utility model patent CN215639917U discloses a steering force measuring instrument calibration device, including a base plate. Support guide rails are fixedly installed at both ends of the top surface of the base plate. A mounting panel is fixed to the top guide rail on the front of each support guide rail. An adjusting turntable is connected to the front bearing of the mounting panel. This utility model, through the adjustment of the turntable and support rod, utilizes the cooperation between a hydraulic cylinder, high-precision weights, a hanging ring, support rods, directional rollers, a steering force measuring instrument, and a connecting steel rope. During the rotation of the adjusting turntable, the device compares the measured values ​​of the calibration digital display with those of the steering force measuring instrument, thus conveniently adjusting the steering force value of the instrument. The detection method is simple and convenient for operation. However, the calibration process has a large error, which can easily affect the accuracy of the calibration results. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a motor vehicle steering wheel torque calibration device that can guarantee measurement accuracy.

[0006] This utility model is implemented as follows:

[0007] A motor vehicle steering wheel torque calibration device includes a structural component, a driving component on one side of the structural component, a detection component on the other side, and a mounting component on the upper end of the detection component.

[0008] The structural component includes: an operating table, a display screen and a sliding groove provided on the upper side of the operating table, and the operating table is hollow;

[0009] The driving piece comprises a mounting frame arranged inside the operation table, a rotating rod arranged at one side of the mounting frame, a driving gear fixedly arranged at one side of the rotating rod, a hand wheel fixedly arranged at the other end of the rotating rod, a threaded rod rotatably arranged between the side walls of the mounting frame, a driven gear arranged at the side of the threaded rod close to the hand wheel, and a sliding block threadedly connected with the threaded rod;

[0010] The detecting piece comprises a torque sensor arranged inside the operation table, a loading arm connected with the torque sensor, a moving plate slidably connected with the loading arm, and an installation table arranged at the upper portion of the moving plate, wherein a push rod is arranged at the upper portion of the installation table.

[0011] The installation piece comprises a fixed table arranged at the upper side of the torque sensor and a steering wheel body connected with the fixed table.

[0012] Further, the driving piece further comprises a limiting rod arranged between the side walls of the mounting frame close to the upper portion, and the sliding block penetrates through the limiting rod and is slidably connected with the limiting rod.

[0013] Further, the detecting piece further comprises an extruding block arranged at the upper side of the sliding block and a through groove arranged at the upper side of the loading arm, and the extruding block extends into the through groove.

[0014] Further, the detecting piece further comprises a locking bolt threadedly arranged at one side of the moving plate, and the locking bolt penetrates into the moving plate and is threadedly connected with the loading arm.

[0015] Further, the radius of the driving gear is smaller than the radius of the driven gear.

[0016] Further, the detecting piece further comprises an installation plate arranged at the lower side of the torque sensor, a screw hole arranged at the upper side of the installation plate, an installation bolt threadedly connected with the screw hole, and the installation bolt penetrates through the installation plate and is threadedly connected with the inner bottom wall of the operation table.

[0017] The utility model discloses a kind of torque transducer calibration methods, avoid the situation that traditional combination calibration method is used to produce partial load, force arm change etc., ensure measurement accuracy, modular design makes device can adapt to different models and specifications steering wheel, with strong universality, can satisfy most force angle instrument calibration demand on market, simultaneously, the structure is calibrated steering wheel force angle instrument pivot and torque sensor rigid coaxial connection, structural component has enough rigidity, avoid abrasion or distortion when loading force value, influence measurement accuracy.

[0018] The utility model discloses a kind of torque transducer calibration methods, avoid the situation that traditional combination calibration method is used to produce partial load, force arm change etc., ensure measurement accuracy, modular design makes device can adapt to different models and specifications steering wheel, with strong universality, can satisfy most force angle instrument calibration demand on market, simultaneously, the structure is calibrated steering wheel force angle instrument pivot and torque sensor rigid coaxial connection, structural component has enough rigidity, avoid abrasion or distortion when loading force value, influence measurement accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further described below with reference to the drawings in combination with the embodiments.

[0020] Fig. 1 It is the whole structure schematic view of the utility model.

[0021] Fig. 2 It is the structure schematic view of driving part in the utility model.

[0022] Fig. 3 It is the structure schematic view of detection part in the utility model.

[0023] Fig. 4 It is the structure schematic view in the inside of construction part in the utility model.

[0024] The drawing figure mark: 1, construction part;11, operation platform;12, display screen;13, sliding slot;2, driving part;21, mounting frame;22, rotating rod;23, driving gear;24, hand wheel;25, driven gear;26, threaded rod;27, limiting rod;28, sliding block;3, detection part;31, torque sensor;32, loading arm;33, moving plate;331, locking bolt;34, mounting table;35, thrust rod;36, extruding block;37, through slot;38, mounting plate;381, mounting bolt;4, mounting part;41, fixed table;5, steering wheel body. Specific implementation

[0025] The details of the utility model can be understood more clearly in combination with the description of the specific implementation of the utility model and the drawings. However, the specific implementation of the utility model described herein is only used for the purpose of explaining the utility model, and cannot be understood as the limitation of the utility model in any way. Under the guidance of the utility model, the skilled person can conceive any possible deformation based on the utility model, and these should be regarded as belonging to the scope of the utility model.

[0026] Reference Figs. 1 to 4 As shown in the figure, the embodiment provides a kind of motor vehicle steering wheel steering torque calibration device, including, construction part 1, construction part 1 one side is provided with driving part 2, the other side is provided with detection part 3, detection part 3 upper end is provided with mounting part 4;

[0027] Construction part 1 includes: operation platform 11, display screen 12 is provided on the upper side of operation platform 11 and is opened with sliding slot 13, and operation platform 11 is hollowly arranged;

[0028] The driving member 2 comprises: a mounting frame 21 arranged in the operation table 11, a rotating rod 22 arranged on one side of the mounting frame 21, a driving gear 23 fixedly arranged on one side of the rotating rod 22, a hand wheel 24 fixedly arranged on the other end of the rotating rod 22, a threaded rod 26 rotatably arranged between the side walls of the mounting frame 21, a driven gear 25 arranged on the side of the threaded rod 26 close to the hand wheel 24, and the radius of the driving gear 23 is smaller than the radius of the driven gear 25; the threaded rod 26 penetrates and is threadedly connected with a sliding block 28; two limiting rods 27 are arranged between the side walls of the mounting frame 21 and close to the upper part, and the sliding block 28 penetrates the limiting rods 27 and is slidably connected with the limiting rods 27.

[0029] The detecting member 3 comprises: a torque sensor 31 arranged in the operation table 11, a loading arm 32 connected with the torque sensor 31, a moving plate 33 slidably connected with the loading arm 32, an installation table 34 arranged on the upper part of the moving plate 33, and a thrust rod 35 arranged on the upper part of the installation table 34; a pressing block 36 is arranged on the upper side of the sliding block 28, a through slot 37 is formed on the upper side of the loading arm 32, and the pressing block 36 extends into the through slot 37; a locking bolt 331 is threadedly arranged on one side of the moving plate 33, the locking bolt 331 penetrates into the moving plate 33 and is threadedly connected with the loading arm 32; an installation plate 38 is arranged on the lower side of the torque sensor 31, a screw hole is formed on the upper side of the installation plate 38, an installation bolt 381 is threadedly connected with the screw hole, the installation bolt 381 penetrates the installation plate 38 and is threadedly connected with the inner bottom wall of the operation table 11.

[0030] The mounting member 4 comprises: a fixed table 41 arranged on the upper side of the torque sensor 31, and the steering wheel body 5 is connected with the upper side of the fixed table 41.

[0031] In use, the force angle instrument to be calibrated is fixed on the operation table 11, and the mounting is firm, the loading arm 32 is adjusted so that the thrust rod 35 on the upper side of the loading arm 32 is in contact with the steering shaft of the steering wheel body 5, the basic information of the steering wheel body 5 to be calibrated is input on the operation table 11, the torque loading point and the loading step of calibration are set, the hand wheel 24 is rotated to drive the threaded rod 26 to rotate, the torque sensor 31 transmits the real-time measured torque data to the display screen 12 on the operation table 11, a data acquisition module is arranged in the operation table 11, the data acquisition and processing system automatically records the measurement data of each torque loading point and performs real-time analysis, and the calibration result and various error data are displayed. If there is a situation that does not meet the calibration specification, the system will prompt to recalibrate or adjust the force angle instrument.

[0032] The locking bolt 331 is arranged to facilitate the adjustment of the distance of the moving plate 33, so that the distance of the moving plate 33 is adjusted according to the radius of the steering wheel body 5 to be calibrated, so that the thrust rod 35 can always be in contact with the steering shaft of the steering wheel body 5, and the installation bolt 381 and the installation plate 38 are arranged to facilitate the quick fixing, mounting, dismounting and maintenance of the position of the torque sensor 31.

[0033] The technical scheme of the utility model can avoid the situations of unbalanced load and force arm change when the traditional combined calibration method is used, ensure the measurement accuracy, the modular design enables the device to adapt to steering wheels of different models and specifications, has strong universality, can meet the calibration requirements of most force angle meters on the market, the structure is rigid coaxial connection between the steering wheel force angle meter rotating shaft and the torque sensor, the structural components have sufficient rigidity, wear or distortion is avoided when the load value is loaded, and the measurement accuracy is affected.

[0034] The above embodiments and drawings are not limited to the product shape and style of the utility model, and any ordinary technical personnel in the art can make appropriate changes or modifications, which should be considered as not departing from the patent category of the utility model.

Claims

1. A motor vehicle steering wheel steering torque calibration device, characterized by: Including, the construction part, one side of the construction part is provided with a driving part, the other side is provided with a detection part, the upper end of the detection part is provided with a mounting part; The construction part includes an operation table, a display screen is arranged on the upper side of the operation table, and a sliding slot is opened, and the operation table is hollowly arranged; The driving part includes a mounting frame arranged in the operation table, a rotating rod is arranged on one side of the mounting frame, a driving gear is fixedly installed on one side of the rotating rod, and a hand wheel is fixedly installed on the other end, a threaded rod is rotatably arranged between the side walls of the mounting frame, a driven gear is installed on one side of the threaded rod close to the hand wheel, and a sliding block is threaded and connected to the threaded rod; The detection part includes a torque sensor arranged in the operation table, a loading arm connected to the torque sensor, a moving plate slidably connected to the loading arm, an installation table arranged on the upper part of the moving plate, and a push rod arranged on the upper part of the installation table; The mounting part includes a fixed table arranged on the upper side of the torque sensor, and a steering wheel body connected to the upper side of the fixed table.

2. A motor vehicle steering wheel torque calibration device as claimed in claim 1, characterised in that: The driving part further includes a limiting rod arranged between the side walls of the mounting frame close to the upper part, and the sliding block penetrates the limiting rod and is slidably connected to the limiting rod.

3. A motor vehicle steering wheel torque calibration device as defined in claim 1, wherein: The detection part further includes an extrusion block arranged on the upper side of the sliding block and a through slot opened on the upper side of the loading arm, and the extrusion block extends into the through slot.

4. A motor vehicle steering wheel torque calibration device as defined in claim 1, wherein: The detection part further includes a locking bolt threaded on one side of the moving plate, and the locking bolt penetrates the moving plate and is threadedly connected to the loading arm.

5. A motor vehicle steering wheel torque calibration device as defined in claim 1, wherein: The radius of the driving gear is smaller than the radius of the driven gear.

6. A motor vehicle steering wheel torque calibration device as defined in claim 1, wherein: The detection part further includes an installation plate arranged on the lower side of the torque sensor, a screw hole is opened on the upper side of the installation plate, an installation screw is threadedly connected to the screw hole, the installation screw penetrates the installation plate and is threadedly connected to the inner bottom wall of the operation table.

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