CN113686571A - Torque and speed fluctuation testing system and method for steering intermediate shaft - Google Patents
Torque and speed fluctuation testing system and method for steering intermediate shaft Download PDFInfo
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- CN113686571A CN113686571A CN202111135553.4A CN202111135553A CN113686571A CN 113686571 A CN113686571 A CN 113686571A CN 202111135553 A CN202111135553 A CN 202111135553A CN 113686571 A CN113686571 A CN 113686571A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/06—Steering behaviour; Rolling behaviour
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Abstract
本发明涉及一种转向中间轴用力矩与速度波动测试系统及方法，其包括：底板；调节装置，其包括：位置调节机构，可调节转向中间轴的角度和长度；角度调节机构，所述角度调节机构可调节所述转向中间轴的角度和长度；测量装置，其包括：驱动机构；传感器；以及计算装置，其用于读取所述速度和力矩信号，形成曲线数据或数值，并根据所述曲线数据或数值判断所述转向中间轴的空间坐标点的设计是否最优。本发明通过中间轴实际空间坐标点，换算对应的角度和长度进行实车状态安装，可以测试实车安装的中间轴的输入端和输出端的力矩和速度信号，通过电脑系统软件处理和电器控制设备进行显示，为整车转向系统中间轴的坐标点合理布置，提供准确性的支持数据。
The invention relates to a torque and speed fluctuation testing system and method for a steering intermediate shaft, comprising: a base plate; an adjustment device, comprising: a position adjustment mechanism, which can adjust the angle and length of the steering intermediate shaft; An adjusting mechanism can adjust the angle and length of the steering intermediate shaft; a measuring device, which includes: a driving mechanism; a sensor; The curve data or numerical value is used to judge whether the design of the spatial coordinate point of the steering intermediate shaft is optimal. The invention uses the actual space coordinate point of the intermediate shaft to convert the corresponding angle and length to install the real vehicle, and can test the torque and speed signals of the input and output terminals of the intermediate shaft installed in the real vehicle. Display it to provide accurate supporting data for the reasonable arrangement of the coordinate points of the intermediate shaft of the vehicle steering system.
Description
Technical Field
The invention relates to the field of steering systems, in particular to a torque and speed fluctuation testing system and method for a steering intermediate shaft.
Background
At present, during the driving process of the automobile, the driving direction of the automobile needs to be changed frequently according to the intention of a driver, namely the automobile steering. In the case of wheeled vehicles, steering is achieved by a driver by means of a set of dedicated mechanisms that deflect the wheels (steering wheels) of a steering axle (typically the front axle) of the vehicle at an angle relative to the longitudinal axis of the vehicle. When the automobile runs in a straight line, the steering wheel is always subjected to the action of lateral interference force on the road surface and automatically deflects to change the running direction. In this case, the driver can also turn the steered wheels in the opposite direction by using the mechanism, so that the vehicle can return to the original driving direction. The special mechanism for changing or restoring the driving direction of the automobile is called an automobile steering system.
The steering intermediate shaft is a transmission mechanism for connecting the pipe column and the mechanical steering gear. The steering device has the effects that the force acting on the pipe column is transmitted to the steering device, the force and the impact on the steering wheel are transmitted back to the pipe column and transmitted to the steering wheel, so that a driver can sense the road condition, and the automobile is controlled correctly. When the whole vehicle is arranged, the space angle, namely the space angle formed by the central line of the pipe column, the central line of the intermediate shaft and the central line of the steering device, is formed when the steering intermediate shaft assembly is arranged, the reasonable design of the space included angle is ensured by the space coordinate point, and the included angle formed by the space included angle influences the torque fluctuation and the conduction efficiency.
In the related technology, the torque and the speed fluctuation of the intermediate shaft of the steering system are obtained by theoretically calculating corresponding included angles and coordinate points, the optimal input and output torque and speed fluctuation value of the steering system of the real vehicle are simulated, and the method has certain reference significance but is not the optimal selection and is different from the actual application of the whole vehicle.
Therefore, it is necessary to design a torque and speed fluctuation testing system and method for a steering intermediate shaft to solve the above problems.
Disclosure of Invention
The embodiment of the invention provides a torque and speed fluctuation testing system and method for a steering intermediate shaft, and aims to solve the problems that the torque and speed fluctuation of the intermediate shaft of a steering system obtained by theoretically calculating corresponding included angles and coordinate points in the related art are not optimal choices and are different from actual whole vehicle application.
In a first aspect, a torque and speed fluctuation test system for a steering intermediate shaft is provided, which includes: a base plate; an adjustment device, comprising: a position adjustment mechanism mounted to the base plate, the position adjustment mechanism being capable of adjusting an angle and a length of a steering intermediate shaft; the angle adjusting mechanism is arranged on the position adjusting mechanism, the angle adjusting mechanism is provided with the steering intermediate shaft, and the angle adjusting mechanism can adjust the angle and the length of the steering intermediate shaft; a measurement device, comprising: a drive mechanism connected to one end of the steering intermediate shaft, the drive mechanism being capable of driving the steering intermediate shaft to rotate; a sensor connected to the steering countershaft, the sensor configured to collect speed and torque signals from the steering countershaft; and the calculating device is used for reading the speed and torque signals, forming curve data or numerical values and judging whether the design of the space coordinate point of the steering intermediate shaft is optimal or not according to the curve data or the numerical values.
In some embodiments, the position adjustment mechanism comprises: a guide rail mounted to the base plate; and the lifting mechanism is arranged on the guide rail and can move along the guide rail.
In some embodiments, the lift mechanism comprises: the base is arranged on the guide rail, a shaft body and a screw rod are arranged on the base, and the shaft body and the screw rod are arranged in parallel at intervals; and the lifting platform is arranged on the shaft body and the screw rod and can move along the axis of the shaft body.
In some embodiments, the angle adjustment mechanism comprises: the adjusting guide rail is arranged on the lifting platform, and a track groove is formed in the adjusting guide rail; and the fixing ring is clamped on the outer side of the steering intermediate shaft, and one end of the fixing ring is clamped on the track groove and can slide along the track groove.
In some embodiments, the sensor comprises: the input end speed and torque sensor is connected with the input end of the steering intermediate shaft and is used for acquiring speed and torque signals of the input end of the steering intermediate shaft; and the output end speed and torque sensor is connected with the output end of the steering intermediate shaft and is used for acquiring speed and torque signals of the output end of the steering intermediate shaft.
In a second aspect, a torque and speed fluctuation test method for a steering intermediate shaft is provided, which comprises the following steps: installing the steering intermediate shaft on the adjusting device, calculating the angle and the length of the steering intermediate shaft according to a preset spatial coordinate point, and adjusting the angle and the length of the steering intermediate shaft through the angle adjusting mechanism and the position adjusting mechanism; connecting the measuring device with the steering intermediate shaft, starting the driving mechanism, and acquiring speed and torque signals of the steering intermediate shaft through the sensor to obtain speed and torque values; and judging whether the design of the space coordinate point is optimal or not according to the speed and moment numerical values, and if not, continuously adjusting the space coordinate point of the steering intermediate shaft.
In some embodiments, the mounting the steering intermediate shaft to the adjustment device, the calculating the angle and the length of the steering intermediate shaft from the preset spatial coordinate point, and the adjusting the angle and the length of the steering intermediate shaft by the angle adjustment mechanism and the position adjustment mechanism includes: a, B, C, D four points are sequentially taken on the steering intermediate shaft, the included angle between AB and BC and the length of BC are measured according to the connecting line of the point A, B and the point B, C, the included angle between BC and CD is measured according to the connecting line of the point B, C and the point C, D, the included angle between AB and BC and the included angle between BC and CD are the angle of the steering intermediate shaft, and the length of BC is the length of the steering intermediate shaft.
In some embodiments, the connecting the measuring device to the steering intermediate shaft, activating the driving mechanism, and acquiring speed and torque signals of the steering intermediate shaft through the sensor to obtain speed and torque values includes: connecting the driving mechanism and the input end speed and torque sensor with the input end of the steering intermediate shaft, and connecting the output end speed and torque sensor with the output end of the steering intermediate shaft; and starting the driving mechanism, acquiring speed and torque signals of the input end of the steering intermediate shaft through the input end speed and torque sensor, and acquiring speed and torque signals of the output end of the steering intermediate shaft through the output end speed and torque sensor.
In some embodiments, the determining whether the design of the spatial coordinate point is optimal according to the speed and torque values, and if not, before continuing to adjust the spatial coordinate point of the steering intermediate shaft, further includes: and sending the speed and torque signals to computer software or electric control equipment for display, and reading data to form curve data or numerical values.
In some embodiments, the determining whether the design of the spatial coordinate point is optimal according to the speed and torque values, and if not, continuing to adjust the spatial coordinate point of the steering intermediate shaft includes: if the speed and torque fluctuation is not more than 15%, the space coordinate point of the steering intermediate shaft is optimal, otherwise, the space coordinate point of the steering intermediate shaft is continuously adjusted, the angle and the length of the steering intermediate shaft are adjusted according to the adjusted space coordinate point, the speed and torque signals of the steering intermediate shaft after adjustment are collected, and further judgment is carried out.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a torque and speed fluctuation testing system and method for a steering intermediate shaft, which can convert a corresponding angle and length to carry out real vehicle state installation through an actual space coordinate point of the steering intermediate shaft, can test torque and speed signals of an input end and an output end of the intermediate shaft installed in a real vehicle, and can display the torque and speed signals through computer system software processing and electric control equipment to provide accurate support data for reasonable arrangement of the coordinate point of the intermediate shaft of a steering system of the whole vehicle.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of a torque and speed fluctuation testing system for a steering intermediate shaft according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an adjusting device of a torque and speed fluctuation testing system for a steering intermediate shaft according to an embodiment of the invention;
FIG. 3 is a torque-torque angle graph of a torque and speed fluctuation testing system for a steering countershaft according to an embodiment of the present disclosure;
FIG. 4 is a graph of input rotation speed-rotation angle-output rotation angle of a torque and speed fluctuation testing system for a steering intermediate shaft according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a steering intermediate shaft of a torque and speed fluctuation testing system for the steering intermediate shaft according to an embodiment of the present invention.
Reference numbers in the figures:
1. a steering intermediate shaft; 2. a drive mechanism; 3. a sensor; 31. an input end speed and torque sensor; 32. an output end speed and torque sensor; 4. a base plate; 5. an angle adjusting mechanism; 51. adjusting the guide rail; 52. a track groove; 53. a fixing ring; 6. a position adjustment mechanism; 61. a guide rail; 62. a lifting mechanism; 621. a base; 622. a shaft body; 623. a screw rod; 624. a lifting platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a torque and speed fluctuation testing system and method for a steering intermediate shaft, which can solve the problems that the torque and speed fluctuation of the intermediate shaft of a steering system obtained by theoretically calculating corresponding included angles and coordinate points in the related technology is not the optimal choice and has difference from the actual application of a whole vehicle.
Referring to fig. 1, a torque and speed fluctuation test system for a steering intermediate shaft according to an embodiment of the present invention may include: the base plate 4 is provided with a plurality of brackets, a first bracket is positioned at the end part of the base plate 4 and used for mounting the driving mechanism 2, a second bracket is arranged on the side surface of the first bracket and used for mounting the input end speed and torque sensor 31, a third bracket is arranged on the side surface of the second bracket and used for supporting the steering intermediate shaft 1, and the position adjusting mechanism 6 and the angle adjusting mechanism 5 are arranged on the side surface of the third bracket; an adjustment device, which may comprise: a position adjusting mechanism 6 mounted on the base plate 4, the position adjusting mechanism 6 being capable of adjusting the angle and length of the steering intermediate shaft 1; the angle adjusting mechanism 5 is mounted on the position adjusting mechanism 6, the steering intermediate shaft 1 is mounted on the angle adjusting mechanism 5, the angle adjusting mechanism 5 can adjust the angle and the length of the steering intermediate shaft 1, generally, the steering intermediate shaft 1 is divided into three sections, and the shafts are connected by universal joint joints, in this embodiment, the adjusting device is used for simulating the mounting state of the steering intermediate shaft 1 in a real vehicle, the mounting position of the steering intermediate shaft 1 is adjusted by the position adjusting mechanism 6, and the mounting angle between the shafts of the steering intermediate shaft 1 is adjusted by the angle adjusting mechanism 5, so that a basis is provided for the mounting of the real vehicle; a measurement device, which may include: a drive mechanism 2 connected to one end of the steering intermediate shaft 1, the drive mechanism 2 being capable of driving the steering intermediate shaft 1 to rotate; the sensor 3 is connected with the steering intermediate shaft 1, the sensor 3 can acquire speed and torque signals of the steering intermediate shaft 1, in the embodiment, the measuring device is used for simulating the use state of the steering intermediate shaft 1 in a real vehicle, simulating the force applied to the input end of the steering intermediate shaft 1 through the driving mechanism 2, and acquiring the speed and torque signals generated by the steering intermediate shaft 1 under the action of force through the sensor 3; and a calculating device for reading the speed and torque signals to form curve data or numerical values, and judging whether the design of the space coordinate point of the steering intermediate shaft 1 is optimal or not according to the curve data or the numerical values, wherein in the embodiment, the calculating device can convert the speed and torque signals into a speed and torque fluctuation graph; the system can be used for installing the coordinate point of the automobile steering system according to the real automobile state to carry out data acquisition and analysis, provides accurate support, saves the project development period, solves the problem of improper design of the coordinate point, and provides guarantee for torque and speed transmission from the pipe column to the steering gear in the automobile steering system.
Referring to fig. 1, in some embodiments, the position adjustment mechanism 6 may include: a guide rail 61 mounted on the base plate 4, wherein the guide rail 61 comprises a transverse guide rail and a longitudinal guide rail, so that the steering intermediate shaft 1 can move along the transverse direction and the longitudinal direction; in the embodiment, the lifting mechanism 62 can drive the steering intermediate shaft 1 to lift and lower so as to adjust the height of the steering intermediate shaft 1 in the vertical direction, and the lifting mechanism 62 can slide on the guide rail 61 so as to change the position of the steering intermediate shaft 1 in the horizontal direction, and the change of the position of the steering intermediate shaft 1 can cause the change of the length or the angle, so that the collected speed and the collected torque signal of the steering intermediate shaft 1 can also be changed.
Referring to fig. 2, in some embodiments, the lifting mechanism 62 may include: a base 621 installed on the guide rail 61, wherein the base 621 can slide on the guide rail 61, a shaft body 622 and a screw 623 are installed on the base 621, and the shaft body 622 and the screw 623 are installed in parallel at intervals; in this embodiment, the lifting table 624 is provided with two through holes, the shaft body 622 and the screw 623 are respectively inserted into the two through holes, the surface of the shaft body 622 is smooth, the surface of the screw 623 is provided with threads, the lifting table 624 can move along the shaft body 622, after the lifting table 624 is manually adjusted to a required height, the screw 623 can prevent the lifting table 624 from sliding downwards, so that a positioning effect is achieved, the base 621 slides on the guide rail 61, so as to drive the lifting table 624 to slide, and therefore, the position of the steering intermediate shaft 1 in the horizontal direction can be adjusted, and the position of the steering intermediate shaft 1 in the vertical direction can also be adjusted.
Referring to fig. 2, in some embodiments, the angle adjustment mechanism 5 may include: an adjusting guide rail 51 installed on the lifting platform 624, wherein a track groove 52 is formed on the adjusting guide rail 51, in this embodiment, the adjusting guide rail 51 has a fan-shaped structure, the track groove 52 extends along an arc-shaped edge of the adjusting guide rail 51, and the track groove 52 is also arc-shaped; fixed ring 53, its clamp in turn to the outside of jackshaft 1, the one end card of fixed ring 53 is located track groove 52, and can follow track groove 52 slides, in this embodiment, one side of fixed ring 53 is equipped with the slender pole, the slender pole card is located in the track groove 52, work as the slender pole is followed track groove 52 slides, because track groove 52 is the arc, consequently, fixed ring 53 can drive turn to jackshaft 1 and rotate, also be exactly the change turn to the angle of jackshaft 1.
Referring to fig. 1, in some embodiments, the sensor 3 may include: an input end speed and torque sensor 31 connected with an input end of the steering intermediate shaft 1 and used for acquiring speed and torque signals of the input end of the steering intermediate shaft 1; the output end speed and torque sensor 32 is connected to the output end of the steering intermediate shaft 1 and is used for acquiring speed and torque signals of the output end of the steering intermediate shaft 1.
Referring to fig. 1, 2, 3 and 4, a torque and speed fluctuation test method for a steering intermediate shaft according to an embodiment of the present invention may include the following steps:
step 1: installing the steering intermediate shaft 1 on the adjusting device, calculating the angle and the length of the steering intermediate shaft 1 according to a preset spatial coordinate point, and adjusting the angle and the length of the steering intermediate shaft 1 through the angle adjusting mechanism 5 and the position adjusting mechanism 6, wherein in the embodiment, the specific adjusting method of the angle and the length of the steering intermediate shaft 1 comprises the following steps: moving the base 621 to a proper position along the guide rail 61, manually lifting the lifting table 624 to a proper height on the shaft body 622, keeping the lifting table at the height through the screw 623, rotating the steering intermediate shaft 1, rotating the fixing ring 53 along with the lifting table, and sliding along the adjusting guide rail 51, so that the angle and the length of the steering intermediate shaft 1 are adjusted, and the installation state of the steering intermediate shaft 1 in a real vehicle is simulated;
step 2: the measuring device is connected with the steering intermediate shaft 1, the driving mechanism 2 is started, and the sensor 3 is used for acquiring the speed and moment signals of the steering intermediate shaft 1 to obtain speed and moment numerical values;
and step 3: and judging whether the design of the space coordinate point is optimal or not according to the speed and moment numerical values, and if not, continuously adjusting the space coordinate point of the steering intermediate shaft 1.
Referring to fig. 5, in some embodiments, the mounting of the steering intermediate shaft 1 to the adjustment device, the calculating of the angle and the length of the steering intermediate shaft 1 according to the preset spatial coordinate point, and the adjusting of the angle and the length of the steering intermediate shaft 1 by the angle adjustment mechanism 5 and the position adjustment mechanism 6 may include:
a, B, C, D four points are sequentially taken on the steering intermediate shaft 1, the included angle between AB and BC and the length of BC are measured according to the connecting line of the point A, B and the connecting line of the point B, C, the included angle between BC and CD is measured according to the connecting line of the point B, C and the point C, D, the included angle between AB and BC and the included angle between BC and CD are the angle of the steering intermediate shaft 1, and the length of BC is the length of the steering intermediate shaft 1.
In this embodiment, convert into through the space coordinate point that predetermines in the testing process turn to jackshaft 1's angle and length to according to angle and length adjustment turn to jackshaft 1's installation condition, the test is convenient, and can be according to jackshaft actual coordinate point, carry out real car state installation through converting corresponding angle and distance, and is accurate quick.
Referring to fig. 1, in some embodiments, the connecting the measuring device to the steering intermediate shaft 1, activating the driving mechanism 2, and acquiring speed and torque signals of the steering intermediate shaft 1 through the sensor 3 to obtain speed and torque values may include: connecting the drive mechanism 2 and the input speed and torque sensor 31 to the input of the steering countershaft 1, and connecting the output speed and torque sensor 32 to the output of the steering countershaft 1; and starting the driving mechanism 2, acquiring speed and torque signals of the input end of the steering intermediate shaft 1 through the input end speed and torque sensor 3, and acquiring speed and torque signals of the output end of the steering intermediate shaft 1 through the output end speed and torque sensor 32.
Referring to fig. 3 and 4, in some embodiments, before determining whether the design of the spatial coordinate point is optimal according to the speed and torque values, and if not, continuing to adjust the spatial coordinate point of the steering intermediate shaft 1, the method may further include: and the speed and torque signals are sent to computer software or electrical control equipment for display, data reading is carried out, curve data or numerical values are formed, the data are displayed and read through the computer software or the electrical control equipment, the curve data or the numerical values are formed, and the judgment on the torque fluctuation and the speed difference of the input end and the output end is more visual and convenient.
Referring to fig. 3 and 4, in some embodiments, the determining whether the design of the spatial coordinate point is optimal according to the speed and torque values, and if not, continuing to adjust the spatial coordinate point of the steering intermediate shaft 1 includes: if the speed and moment fluctuation is not more than 15%, the space coordinate point of the steering intermediate shaft 1 is optimal, otherwise, the space coordinate point of the steering intermediate shaft 1 is continuously adjusted, the angle and the length of the steering intermediate shaft 1 are adjusted according to the adjusted space coordinate point, the speed and moment signals of the steering intermediate shaft 1 after adjustment are collected, and then further judgment is carried out.
During installation, the steering intermediate shaft 1 converts the corresponding angle and length according to the spatial coordinate point data, the input end and the output end of the steering intermediate shaft 1 are fixed through bolts, and the spatial coordinate point of the intermediate shaft is accurately adjusted and fixed through an adjusting mechanism; after the work is finished, the motor is started to operate according to the specified rotating speed and torque under the control of computer software or electrical equipment, an input end speed and torque sensor 31 acquires an input end speed and torque signal of the steering intermediate shaft 1, an output end speed and torque sensor 32 acquires an output end speed and torque signal of the steering intermediate shaft 1, and the acquired data is displayed through set computer software or electrical control equipment to read the data to form curve data or a numerical value; and (4) checking according to the condition that the input and output speed and the moment fluctuation do not exceed 15%, and judging whether the coordinate point design of the steering intermediate shaft is optimal or not through the fluctuation moment and the fluctuation speed data.
The torque and speed fluctuation testing system and method for the steering intermediate shaft provided by the embodiment of the invention have the following principles:
the invention can simulate installation by converting corresponding angles and distances according to actual coordinate points of the steering intermediate shaft 1, test torque fluctuation and speed difference of the input end and the output end of the steering intermediate shaft 1 installed in a real vehicle through the test system, and perform data acquisition and analysis by installing the coordinate points of the automobile steering system according to the real vehicle state, thereby providing accurate support data for reasonable arrangement of the coordinate points of the steering intermediate shaft 1 of the whole vehicle steering system, saving project development period, solving the problem of improper design of the coordinate points, and providing guarantee for torque and speed transmission from a pipe column to a steering gear in the automobile steering system.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
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| CN114789515A (en) * | 2022-04-22 | 2022-07-26 | 高豹 | V-shaped grooving machine |
| CN115140154A (en) * | 2022-06-27 | 2022-10-04 | 中国第一汽车股份有限公司 | Steering intermediate shaft and torque fluctuation calculation method thereof |
| CN117330222A (en) * | 2023-12-01 | 2024-01-02 | 常州市昌隆电机股份有限公司 | Woodworking motor axial torque detection device and detection method thereof |
| CN120333871A (en) * | 2025-04-23 | 2025-07-18 | 深圳市迪尔泰科技有限公司 | Power steering column with intermediate shaft function testing device and method |
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