CN111638004B - Vehicle mass center position measuring tool and measuring method thereof - Google Patents
Vehicle mass center position measuring tool and measuring method thereof Download PDFInfo
- Publication number
- CN111638004B CN111638004B CN202010523019.XA CN202010523019A CN111638004B CN 111638004 B CN111638004 B CN 111638004B CN 202010523019 A CN202010523019 A CN 202010523019A CN 111638004 B CN111638004 B CN 111638004B
- Authority
- CN
- China
- Prior art keywords
- vehicle
- wheel
- weighing platform
- angle
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a vehicle mass center position measuring tool and a measuring method thereof, wherein the vehicle mass center position measuring tool comprises an angle adjusting bracket, a single-wheel weighing platform and an angle ruler, the single-wheel weighing platform is fixed on the angle adjusting bracket and measures the weight of a certain wheel of a vehicle to be measured above the angle adjusting bracket in a horizontal state, the angle adjusting bracket is supported between a placing surface and the single-wheel weighing platform to enable the single-wheel weighing platform to be in the horizontal state, and the angle ruler measures to obtain an angle which is adjusted by the angle adjusting bracket from one placing surface to the other placing surface to enable the single-wheel weighing platform to be kept in the horizontal state. The vehicle mass center position measuring tool and the measuring method thereof adopt the angle adjusting bracket, the single-wheel weighing platform and the angle ruler to measure the mass center of the vehicle, and the mass center position of the measured vehicle can be obtained after measurement reading and calculation, and the tool is small and portable, convenient to use and low in cost; the measuring method is simple and easy to implement and simple to operate; the vehicle mass center measurement does not need a fixed place, and the measurement method has wide application range.
Description
Technical Field
The invention relates to the technical field of vehicle mass center measurement, in particular to a vehicle mass center position measuring tool and a measuring method thereof.
Background
Vehicle handling stability, ride comfort and safety have become important indicators for evaluating vehicle performance, and the position of the center of mass of the vehicle has a large influence on these indicators. According to national standards of China, the rollover resisting angle of the automobile under the no-load condition is not less than 35 degrees, and objective evaluation can be made after the position of the center of mass is rapidly confirmed.
In the vehicle design process, the center of mass position of the whole vehicle is usually calculated according to the center of mass position of each assembly. Generally speaking, the vehicle is symmetrical in the longitudinal plane, and the centroid position is offset very little in the left-right direction, so the centroid position is usually only represented by the horizontal distance of the centroid from the centerline of the front (or rear) axis and the centroid height. The horizontal position of the mass center can be obtained by measuring the axial load, and the technical problem does not exist in the testing method. Thus, the height of the center of mass becomes the key to determine the position of the center of mass of the vehicle.
At present, the following methods are mainly used for measuring the mass center position of a vehicle at home and abroad: a rocking method, a suspension method, a zero position method, a platform support reaction method, a mass reaction method and the like. The mass reaction method is based on the principle that a rigid body rotates around a fixed shaft, one end of a vehicle is lifted during a test, the transfer amount of axle load and the inclination angle of the vehicle are respectively measured when the vehicle is lifted to different angles, and then the position of the mass center is calculated.
In the traditional mass reaction method, a large crane is needed, and a whole vehicle suspension structure needs to be locked, so that the operation is complicated.
Therefore, how to simplify the operation tools and operation steps required for the mass reaction method becomes a problem to be solved by the present invention.
Disclosure of Invention
The invention aims to provide a vehicle mass center position measuring tool and a measuring method thereof, which can finish the measurement of the mass center of a vehicle by using a smaller measuring tool and simple operation steps.
In order to achieve the purpose, the vehicle centroid position measuring tool designed by the invention comprises an angle adjusting bracket, a single-wheel weighing platform and an angle ruler, wherein the single-wheel weighing platform is fixed on the angle adjusting bracket and measures the weight of a certain wheel of a vehicle to be measured above the vehicle in a horizontal state, the angle adjusting bracket is supported between a placing surface and the single-wheel weighing platform to enable the single-wheel weighing platform to be in the horizontal state, and the angle ruler measures an angle which is adjusted by the angle adjusting bracket from one placing surface to the other placing surface to enable the single-wheel weighing platform to be kept in the horizontal state.
Preferably, the angle adjusting support comprises a weighing platform bracket, an adjusting support bottom plate and a sliding support piece, the adjusting support bottom plate is arranged on the placing surface, the weighing platform bracket is hinged to the adjusting support bottom plate around an axis parallel to the x direction, and the sliding support piece is connected between the weighing platform bracket and the adjusting support bottom plate to fix the angle between the weighing platform bracket and the adjusting support bottom plate.
Preferably, the angle adjusting bracket further comprises an adjusting screw rod and a rotating pin, the adjusting screw rod forms a screw-nut pair, the adjusting screw rod is rotatably mounted on the adjusting bracket bottom plate, the axis of the adjusting screw rod is perpendicular to the x direction, the rotating pin is axially movably sleeved on the adjusting screw rod and fixedly connected with the sliding support piece, and the sliding support piece is hinged with the weighing platform bracket around the axis parallel to the x direction.
Preferably, the tail end of the adjusting screw rod is provided with a through hole connected with the rocker or the rocker arm and used for driving the adjusting screw rod to rotate.
Preferably, a limiting pin is arranged on the side edge of the sliding support, a plurality of limiting holes are formed in the adjusting support base plate and are distributed at intervals in the direction parallel to the axis of the adjusting screw, the limiting pin is selectively matched with one of the limiting holes, the tail end of the limiting pin matched with the limiting hole is in a wedge shape, the inclined plane of the wedge shape faces the direction in which the angle between the weighing platform bracket and the adjusting support base plate is increased, and the right-angle surface of the wedge shape is abutted to the hole wall of the limiting hole.
Preferably, the bottom of the bottom plate of the adjusting bracket is provided with anti-slip teeth which are in contact with the placing surface.
Preferably, the angle ruler comprises a heavy bob pointer and a dial plate, the heavy bob pointer can swing around an axis parallel to the x direction relative to the dial plate, angle scales are arranged on the dial plate, and the dial plate is fixed on the bottom plate of the adjusting bracket or the measured vehicle.
Preferably, a magnet which is adsorbed on the bottom plate of the adjusting bracket or the vehicle to be tested is arranged at the back of the dial plate.
Preferably, the single-wheel weighing platform comprises a weighing platform stress panel for bearing a certain wheel of the vehicle to be measured and a level meter for indicating the levelness of the weighing platform stress panel.
In order to achieve the purpose, the measuring method adopting the vehicle mass center position measuring tool comprises the following steps:
placing the vehicle to be measured on a horizontal placing surface, placing the angle adjusting bracket and the single-wheel weighing platform below each wheel, measuring to obtain the weight of each wheel, and adjusting the angle ruler to be a pointer zero point;
placing a vehicle to be measured on a placing surface with a certain gradient, placing the angle adjusting bracket and the single-wheel weighing platform below each wheel, adjusting the angle adjusting bracket until the single-wheel weighing platform below each wheel is in a horizontal state, measuring to obtain the weight of each wheel, and simultaneously reading the reading of the angle ruler to obtain an angle alpha;
the left front wheel center point C of the vehicle to be measured is taken as a coordinate origin, the vertical direction is the coordinate z direction, the horizontal direction along the length of the frame is the coordinate y direction, the horizontal direction passing through the connecting line of the left front wheel center point C to the right front wheel is the coordinate x direction, and the barycentric coordinates (x, y, z) of the vehicle to be measured are as follows:
wherein:
a, the sum of the front wheel weights measured by the single-wheel weighing platform when the vehicle is on a horizontal placing surface;
b, the sum of the weights of the rear wheels measured by the single-wheel weighing platform when the vehicle is on the horizontal placing surface;
aright side-the right front wheel weight measured by the single wheel weighing station when the vehicle is on a horizontal resting surface;
bright sideThe weight of the right rear wheel measured by the single-wheel weighing station when the vehicle is on the horizontal placing surface;
a 1-the sum of the front wheel weights measured by the single wheel weighing station when the vehicle is placed on an incline;
b 1-sum of the weights of the rear wheels measured by the single-wheel weighing station when the vehicle is placed at an inclined plane;
m is the distance between the center points of the two front wheels;
l is vehicle wheel base;
alpha-vehicle inclination angle.
The invention has the beneficial effects that: the vehicle mass center position measuring tool and the measuring method thereof adopt the angle adjusting bracket, the single-wheel weighing platform and the angle ruler to measure the mass center of the vehicle, and the mass center position of the measured vehicle can be obtained after measurement reading and calculation; the vehicle mass center measuring method is simple and easy to implement, and the measuring operation is simple; the vehicle mass center measurement does not need a fixed place, and the measurement method has wide application range.
Drawings
Fig. 1 is a schematic perspective view of an adjusting bracket and a single-wheel weighing platform of a vehicle centroid position measuring tool according to a preferred embodiment of the invention.
Fig. 2 is a perspective view of the main body of the adjusting bracket of fig. 1.
Fig. 3 is an enlarged view of portion I in fig. 2.
Fig. 4 is an enlarged view of a portion II in fig. 2.
Fig. 5 is an enlarged view of the portion III in fig. 2.
Fig. 6 is a side view of the operation of the adjustment bracket of fig. 1.
Fig. 7 is a schematic perspective view of the single-wheel weighing station in fig. 1.
Fig. 8 is a perspective view illustrating an angle scale of a vehicle centroid position measuring tool according to a preferred embodiment of the present invention.
Fig. 9 is a schematic view of the vehicle centroid position measuring tool of the preferred embodiment of the present invention in use, with the vehicle horizontal.
Fig. 10 is an enlarged view of the portion IV of fig. 9.
Fig. 11 is a schematic diagram of the centroid calculation process of the vehicle in fig. 9 in a horizontal state.
Fig. 12 is a schematic view of a vehicle centroid position measuring instrument according to the preferred embodiment of the present invention in use, in a vehicle tilted state.
Fig. 13 is an enlarged view of portion V in fig. 12.
Fig. 14 is an enlarged view of a VI portion in fig. 12.
Fig. 15 is a schematic diagram of the process of calculating the center of mass of the vehicle in fig. 12 in a tilted state.
Fig. 16 is a schematic diagram of the centroid calculation process of the vehicle in fig. 12 in a tilted state.
The components in the figures are numbered as follows: an angle adjusting support 1 (wherein, a weighing platform bracket 1.1, an adjusting support bottom plate 1.2, a sliding support 1.3, an adjusting screw 1.4, a limiting pin 1.5, a rotating pin 1.6, a limiting base plate 1.7 and a limiting hole 1.8); a single-wheel weighing platform 2 (wherein, the weighing platform is provided with a stress panel 2.1 and a level 2.2); an angle ruler 3 (wherein, a weight pointer 3.1 and a dial 3.2); a horizontal transition rubber block 4.1 and an inclined transition rubber cushion block 4.2.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The invention aims to find a tool and a method for rapidly measuring the position of the mass center, which do not need large-scale equipment, are all portable equipment, are convenient and simple to operate and do not need to lock a suspension frame.
Referring to fig. 1, 2 and 3, the vehicle centroid position measuring tool according to the preferred embodiment of the present invention includes an angle adjusting bracket 1, a single-wheel weighing platform 2 and an angle ruler 3, and the coordinates of the vehicle centroid position can be obtained by calculation after measuring the required data.
As shown in figure 1, an angle adjusting bracket 1 in the vehicle mass center position measuring tool is matched with a single-wheel weighing platform 2 for use.
Referring to fig. 2, the angle adjusting bracket 1 includes a weighing platform bracket 1.1, an adjusting bracket bottom plate 1.2, a sliding support 1.3, an adjusting screw 1.4, a limit pin 1.5, and a rotation pin 1.6. The single-wheel weighing platform 2 is arranged on the weighing platform bracket 1.1, the single-wheel weighing platform 2 can be fixed with the weighing platform bracket 1.1 into a whole, and can also be used as an independent part independent of the weighing platform bracket 1.1 so as to be convenient for replacement or maintenance and the like.
The front end and the rear end of the weighing platform bracket 1.1 are respectively connected with the adjusting bracket bottom plate 1.2 and the sliding support piece 1.3 in a three-point hinge mode, and a hinge axis is parallel to the x direction. Adjusting screw 1.4 sets up along vertically (perpendicular to x direction), and there is the through-hole adjusting screw 1.4 top, conveniently rotates with external rocker or rocking arm cooperation. The other top end of the adjusting screw rod 1.4 is fixed by two limit backing plates 1.7 in a butt joint manner, as shown in fig. 4, and the two limit backing plates 1.7 are fixed on a cross beam of the adjusting bracket bottom plate 1.2 in a bolt manner, so that the adjusting screw rod 1.4 can normally rotate and cannot be separated from the adjusting bracket bottom plate 1.2, and a screw rod longitudinally arranged on the adjusting bracket bottom plate 1.2 is formed. The bottom of the center stay bar of the sliding support piece 1.3 is hinged with a rotating pin 1.6, and the rotating pin 1.6 is in threaded connection with the adjusting screw rod 1.4 through thick threads. The tail end of the outer frame on the side surface of the adjusting bracket bottom plate 1.2 is provided with a plurality of limiting holes 1.8 which are distributed at intervals along the longitudinal direction, and limiting pins 1.5 arranged on two sides of the rear end of the sliding support piece 1.3 are selectively matched with one limiting hole 1.8. The tail end of the limiting pin 1.5 matched with the limiting hole 1.8 is wedge-shaped, the inclined plane of the tail end faces the front end, and the adjusting screw rod 1.4 is conveniently rotated to enable the limiting pin 1.5 to be separated from the current limiting hole 1.8 and enter the previous limiting hole 1.8 when moving forwards. The right angle face at the tail end of the wedge of the limiting pin 1.5 faces backwards, and can be abutted against the rear hole wall of the limiting hole 1.8, so that the angle sudden change of the angle adjusting support 1 under the condition that the adjusting screw rod 1.4 fails is prevented, and the safety during measurement is ensured.
Referring to fig. 5, a screw nut pair is formed between the adjusting screw 1.4 and the rotating pin 1.6, and the rotating pin 1.6 can move along the length direction of the adjusting screw 1.4 by rotating the adjusting screw 1.4, so as to adjust the included angle between the weighing platform bracket 1.1 and the adjusting bracket bottom plate 1.2. In the illustrated embodiment, the angle adjustable range of the angle adjusting bracket 1 is 8 to 18 degrees, and the converted gradient is 14.0 to 32.5 percent. In order to ensure that the angle adjusting bracket 1 slides or moves during use, anti-slip teeth (not shown, as shown in fig. 6) are provided at the bottom of the adjusting bracket bottom plate 1.2 to ensure that the angle adjusting bracket 1 does not slide on the placing surface during measurement.
Please refer to fig. 7, which is a schematic structural diagram of the single-wheel weighing platform 2, wherein the precision of the single-wheel weighing platform 2 is 0.1kg, and the single-wheel weighing platform comprises a weighing platform force-bearing panel 2.1 and a level 2.2. The level 2.2 indicates the levelness of the current position, and the position level of the stress panel 2.1 of the weighing platform can be ensured by observing the level 2.2.
Please refer to fig. 8, which is a schematic structural diagram of the angle ruler 3, the angle ruler 3 includes a weight pointer 3.1 and a dial 3.2, and the weight pointer 3.1 can swing relative to the dial 3.2. At the same time, a strong magnet (not shown) is arranged at the back of the dial 3.2 of the angle ruler 3, and can be adsorbed on a cab or a carriage. In the measuring process, the weight pointer 3.1 is always kept vertical, and the dial 3.2 is fixed on a cab or a carriage of the vehicle to be measured through adsorption and changes along with the position change of the vehicle to be measured. In the illustrated embodiment, the measurement accuracy of the angle ruler 3 is 0.25 °.
Referring to fig. 9 to 16, the method for measuring the vehicle centroid position measuring tool of the present invention is as follows:
in order to facilitate calculation and later-stage determination of the centroid position, a central point C of a left front wheel of the whole vehicle is regarded as a coordinate origin of the whole vehicle, the vertical direction is the leftmost z direction, the horizontal direction along the length of the vehicle frame is the coordinate y direction, and the horizontal direction passing through a connecting line from the central point of the left front wheel to the right front wheel is the x direction.
1. Centroid height measurement (z direction):
as shown in fig. 9, the vehicle to be tested is placed on the horizontal placement surface, the single-wheel weighing platform 2 is placed right behind four wheels of the vehicle to be tested, the horizontal transition rubber block 4.1 can be added in front of the single-wheel weighing platform 2, the vehicle slowly runs from the horizontal transition rubber block 4.1 to the position right above the single-wheel weighing platform 2, the total weight a of the front shaft and the total weight b of the rear shaft can be obtained, the angle ruler 3 is adjusted to be the pointer zero, and as shown in fig. 10, the weight pointer 3.1 points to the zero position on the dial 3.2.
At this time, as shown in fig. 11, the position of the perpendicular point a of the line d passing through the center of mass of the vehicle and the line CD connecting the front and rear wheel axes can be calculated from the mass:
as shown in fig. 12, a tested vehicle is driven to a placing surface with a certain gradient, the angle adjusting bracket 1 is matched with the single-wheel weighing platform 2 and then placed behind four wheels to be tested, an inclined transition rubber block 4.2 is placed between the wheels and the weighing platform 2, the angle adjusting bracket 1 is pre-adjusted by a certain angle, and the single-wheel weighing platform 2 is kept horizontal as much as possible; then, the vehicle slowly runs onto the single-wheel weighing platform 2 from the over-inclined rubber block 4.2, the position state of the level gauge observed in the level gauge 2.2 on the four-wheel single-wheel weighing platform 2 is kept in a horizontal state by adjusting the angle of the angle adjusting bracket 1, at the moment, the total weight a1 of the front shaft and the total weight b1 of the rear shaft can be obtained, and the angle alpha (namely the inclined angle of the slope) displayed by the angle ruler 3 can be read. As shown in fig. 15, a horizontal straight line passing through the center point C of the front axle intersects a vertical line passing through the center point D of the rear axle at point E, and at this time, a straight line E passing through the center of mass of the vehicle intersects a straight line D at point O, at point F with CE, and at point B with CD. Since the position of the center of mass of the vehicle is unchanged, the intersection point O of the straight line e and the straight line d is the position of the center of mass of the vehicle to be detected.
CE＝CD*cosα；
AO is the distance of the mass center in the z-axis direction under the horizontal static state of the whole vehicle:
wherein:
a-the front axle weight measured with the vehicle on a horizontal surface;
b-rear axle weight measured with the vehicle on a horizontal surface;
a 1-front axle weight measured when the vehicle is placed on an incline;
b1 — rear axle weight measured when the vehicle is placed on an incline;
L-CD distance, i.e. vehicle wheelbase;
α -vehicle inclination angle.
2. Centroid distance measurement along frame direction (y direction):
as shown in fig. 9 and 11, the distance of AC is the distance of the centroid in the y direction:
wherein:
a-the front axle weight measured with the vehicle on a horizontal surface;
b-rear axle weight measured with the vehicle on a horizontal surface;
L-CD distance, i.e. vehicle wheelbase.
3. Centroid-at-front axle axial distance (x direction):
as shown in fig. 12, 15, and 16, the four single-wheel weighing stations 2 can respectively measure the left front-wheel weights aLeft side ofRight front wheel weight aRight sideLeft rear wheel weight bLeft side ofAnd right front wheel weight bRight side. The center points of the left front wheel and the right front wheel are projected to the ground, and then the distance M between the center points of the two front wheels can be measured. Wherein:
a＝aleft side of+aRight side；
b＝bLeft side of+bRight side；
The centroid is at the axial distance x:
wherein:
a-the front axle weight measured with the vehicle on a horizontal surface;
b-rear axle weight measured with the vehicle on a horizontal surface;
aleft side of-left front wheel weight measured with the vehicle on a horizontal surface;
aright side-the weight of the right front wheel measured with the vehicle on a horizontal surface;
bleft side of-left rear wheel weight measured with the vehicle on a horizontal surface;
bright side-the weight of the right rear wheel measured with the vehicle on a horizontal surface;
x-centroid at axial distance;
m is the distance between the center points of the two front wheels.
In summary, the coordinates of the centroid position of the detected vehicle are:
it should be noted that, in the above embodiment, the angle ruler 3 is a separate part from the angle adjusting bracket 1 and the single-wheel weighing station 2, and is attached to the vehicle to be measured when in use. In other embodiments, the angle 3 can also be designed to be mounted on the adjusting bracket bottom plate 1.2 of a certain angle adjusting bracket 1, the use method is the same as the above embodiment, the angle 3 is set to zero in the horizontal position, and the angle 3 is used for measuring the inclined angle in the inclined position.
Compared with the prior art, the vehicle mass center position measuring tool and the measuring method thereof have the following advantages: (1) the vehicle mass center measuring tool is small and portable, convenient to use and low in cost; (2) the vehicle mass center measuring method is simple and easy to implement, and the measuring operation is simple; (3) the vehicle mass center measurement does not need a fixed place, and the measurement method has wide application range.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A measuring method of a vehicle mass center position measuring tool is characterized in that: the vehicle mass center position measuring tool comprises an angle adjusting support (1), a single-wheel weighing platform (2) and an angle ruler (3), wherein the single-wheel weighing platform (2) is fixed on the angle adjusting support (1) and measures the weight of a certain wheel of a vehicle to be measured above the vehicle in a horizontal state, the angle adjusting support (1) is supported between a placing surface and the single-wheel weighing platform (2) to enable the single-wheel weighing platform (2) to be in the horizontal state, and the angle ruler (3) measures an angle which is adjusted by the angle adjusting support (1) from one placing surface to the other placing surface to enable the single-wheel weighing platform (2) to be kept in the horizontal state;
the measuring method comprises the following steps:
placing a tested vehicle on a horizontal placing surface, placing the angle adjusting bracket (1) and the single-wheel weighing platform (2) below each wheel, measuring to obtain the weight of each wheel, and adjusting the angle ruler (3) to be a pointer zero;
placing a vehicle to be measured on a placing surface with a certain gradient, placing the angle adjusting support (1) and the single-wheel weighing platform (2) below each wheel, adjusting the angle adjusting support (1) to the state that the single-wheel weighing platform (2) below each wheel is horizontal, measuring to obtain the weight of each wheel, and simultaneously reading the reading of the angle ruler (3) to obtain an angle alpha;
the center point C of the left front wheel of the measured vehicle is taken as a coordinate origin, the vertical direction is the direction of coordinate z, the horizontal direction along the length of the frame is the direction of coordinate y, the horizontal direction passing through the connecting line from the center point C of the left front wheel to the right front wheel is the direction of coordinate x, and then the barycentric coordinates (x, y, z) of the measured vehicle are as follows:
（
，
，
）;
wherein:
a, the sum of the weights of the front wheels measured by the single-wheel weighing platform when the vehicle is on a horizontal placing surface;
b, the sum of the weights of the rear wheels measured by the single-wheel weighing platform when the vehicle is on the horizontal placing surface;
aright side-the right front wheel weight measured by the single wheel weighing station when the vehicle is on a horizontal resting surface;
bright sideThe weight of the right rear wheel measured by the single-wheel weighing station when the vehicle is on the horizontal placing surface;
a 1-the sum of the front wheel weights measured by the single wheel weighing station when the vehicle is placed on an incline;
b 1-sum of the weights of the rear wheels measured by the single-wheel weighing station when the vehicle is placed at an inclined plane;
m is the distance between the center points of the two front wheels;
l is vehicle wheel base;
alpha-vehicle inclination angle.
2. A vehicle centroid position measuring tool employing the measuring method as set forth in claim 1, wherein: the angle adjusting support (1) comprises a weighing platform bracket (1.1), an adjusting support bottom plate (1.2) and a sliding support piece (1.3), the adjusting support bottom plate (1.2) is arranged on the placing surface, the weighing platform bracket (1.1) and the adjusting support bottom plate (1.2) are hinged around an axis parallel to the x direction, and the sliding support piece (1.3) is connected between the weighing platform bracket (1.1) and the adjusting support bottom plate (1.2) to fix the angle between the weighing platform bracket (1.1) and the adjusting support bottom plate (1.2);
the angle adjusting support (1) further comprises an adjusting screw rod (1.4) and a rotating pin (1.6) which form a screw-nut pair, the adjusting screw rod (1.4) is rotatably installed on the adjusting support bottom plate (1.2), the axis of the adjusting screw rod (1.4) is perpendicular to the x direction, the rotating pin (1.6) is sleeved on the adjusting screw rod (1.4) in an axially moving manner and is fixedly connected with the sliding support piece (1.3), and the sliding support piece (1.3) is hinged with the weighing platform bracket (1.1) around the axis parallel to the x direction;
the single-wheel weighing platform (2) is arranged on the weighing platform bracket (1.1), the single-wheel weighing platform (2) comprises a weighing platform stress panel (2.1) for bearing a certain wheel of the vehicle to be measured and a level gauge (2.2) for indicating the levelness of the weighing platform stress panel (2.1), and a horizontal transition rubber block (4.1) is arranged in front of the single-wheel weighing platform (2);
the angle ruler (3) comprises a heavy hammer pointer (3.1) and a dial plate (3.2), the heavy hammer pointer (3.1) swings around an axis parallel to the x direction relative to the dial plate (3.2), angle scales are arranged on the dial plate (3.2), the dial plate (3.2) is fixed on the adjusting support bottom plate (1.2) or a vehicle to be measured, and a magnet adsorbed on the adjusting support bottom plate (1.2) or the vehicle to be measured is arranged behind the dial plate (3.2).
3. The vehicle centroid position measuring tool according to claim 2, wherein: the tail end of the adjusting screw rod (1.4) is provided with a through hole connected with a rocker or a rocker arm and drives the adjusting screw rod (1.4) to rotate.
4. The vehicle centroid position measuring tool according to claim 2, wherein: the side of the sliding support piece (1.3) is provided with a limiting pin (1.5), the adjusting support base plate (1.2) is provided with a plurality of limiting holes (1.8) which are distributed at intervals in the direction parallel to the axis of the adjusting screw rod (1.4), the limiting pin (1.5) is selectively matched with one limiting hole (1.8), the tail end of the limiting pin (1.5) matched with the limiting hole (1.8) is wedge-shaped, the inclined plane of the wedge-shaped inclined plane faces the direction in which the angle between the weighing platform bracket (1.1) and the adjusting support base plate (1.2) is increased, and the right-angle surface of the wedge-shaped inclined plane is abutted to the hole wall of the limiting hole (1.8).
5. The vehicle centroid position measuring tool according to claim 2, wherein: the bottom of the adjusting bracket bottom plate (1.2) is provided with anti-skid teeth which are contacted with the placing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523019.XA CN111638004B (en) | 2020-06-10 | 2020-06-10 | Vehicle mass center position measuring tool and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523019.XA CN111638004B (en) | 2020-06-10 | 2020-06-10 | Vehicle mass center position measuring tool and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111638004A CN111638004A (en) | 2020-09-08 |
| CN111638004B true CN111638004B (en) | 2022-06-03 |
Family
ID=72330146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010523019.XA Active CN111638004B (en) | 2020-06-10 | 2020-06-10 | Vehicle mass center position measuring tool and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111638004B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235279A (en) * | 2021-11-30 | 2022-03-25 | 北京航天新立科技有限公司 | Method for measuring three-dimensional mass center of super-long large vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204575511U (en) * | 2015-03-25 | 2015-08-19 | 高创(苏州)电子有限公司 | A kind of slope test tool |
| CN105928657A (en) * | 2016-05-27 | 2016-09-07 | 大连楼兰科技股份有限公司 | Vehicle centroid position measuring device and method |
| CN108801548A (en) * | 2018-06-29 | 2018-11-13 | 北京汽车股份有限公司 | Vehicle centroid survey tool and measurement method |
| JP2018179880A (en) * | 2017-04-19 | 2018-11-15 | アイシン精機株式会社 | Centroid detection device |
| CN208847404U (en) * | 2018-10-23 | 2019-05-10 | 哈尔滨理工大学 | A kind of levelling device of gradient method measurement vehicle centroid |
| CN110775796A (en) * | 2019-11-29 | 2020-02-11 | 浙江科技学院 | Adjustable escalator middle supporting device and adjusting method thereof |
-
2020
- 2020-06-10 CN CN202010523019.XA patent/CN111638004B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204575511U (en) * | 2015-03-25 | 2015-08-19 | 高创(苏州)电子有限公司 | A kind of slope test tool |
| CN105928657A (en) * | 2016-05-27 | 2016-09-07 | 大连楼兰科技股份有限公司 | Vehicle centroid position measuring device and method |
| JP2018179880A (en) * | 2017-04-19 | 2018-11-15 | アイシン精機株式会社 | Centroid detection device |
| CN108801548A (en) * | 2018-06-29 | 2018-11-13 | 北京汽车股份有限公司 | Vehicle centroid survey tool and measurement method |
| CN208847404U (en) * | 2018-10-23 | 2019-05-10 | 哈尔滨理工大学 | A kind of levelling device of gradient method measurement vehicle centroid |
| CN110775796A (en) * | 2019-11-29 | 2020-02-11 | 浙江科技学院 | Adjustable escalator middle supporting device and adjusting method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 角度可调式车辆轮荷测量系统的研究;郭亚内;《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑》;20190815(第8期);C035-276 * |
| 郭亚内.角度可调式车辆轮荷测量系统的研究.《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑》.2019,(第8期),C035-276. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111638004A (en) | 2020-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101788385B (en) | Stability parameter test board for automobile | |
| CN101893517A (en) | Automobile stability parameter test bench and test method using same | |
| CN106840519B (en) | A kind of static measurement method of two-axle car height of center of mass | |
| CN103776635B (en) | Wheel-chair steady stability system safety testing device | |
| CN101063640B (en) | Calibrating apparatus for vehicle vertically and horizontally flat non-relating angle modulation type fourth wheel orientator | |
| GB2179460A (en) | Vehicle wheel inclination measuring | |
| CN111638004B (en) | Vehicle mass center position measuring tool and measuring method thereof | |
| CN108801548A (en) | Vehicle centroid survey tool and measurement method | |
| CN108414143A (en) | Vehicle's center of gravity measurement method | |
| CN103674427A (en) | Testing host | |
| CN103234765A (en) | Split assembly and disassembly type device for measuring automobile four-wheel aligner | |
| CN203178081U (en) | Split detachable calibration device of vehicle four-wheel aligner | |
| CN104729861B (en) | Straight drive mechanical arm type single-wheel kingpin inclination and castor calibrating installation | |
| CN113390560A (en) | Measuring mechanism for measuring mass three-dimensional mass center of large flying body with wings | |
| CN219531923U (en) | Long shaft piece axiality quick detection device | |
| CN202994481U (en) | Fixed type calibrating device for vehicle four-wheel aligner | |
| US4942666A (en) | Apparatus for measuring camber, caster and steering axis inclination of a vehicle | |
| CN204479306U (en) | Directly drive mechanical arm type single-wheel kingpin inclination and kingpin castor angle calibrating installation | |
| CN114427932A (en) | Centroid measuring method and centroid measuring instrument for collision dummy | |
| CN103439120B (en) | Based on belt driven type calibrating apparatus for four-wheel positioning instrument | |
| CN114705361A (en) | Gravity center weight measuring system and method for irregular object | |
| CN210287989U (en) | Track geometric state detection device | |
| CN201060107Y (en) | Calibrating apparatus of vehicle vertically and horizontally plane non relating angle modulation type fourth wheel orientator | |
| CN203490081U (en) | Calibrating apparatus for four-wheel positioning instrument based on belt drive | |
| CN216159864U (en) | Auxiliary device for tunnel monitoring and measuring vault settlement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |