Centroid position measuring device for vehicle
阅读说明:本技术 车辆的质心位置测量装置 (Centroid position measuring device for vehicle ) 是由 宋康 李佳 于 2020-07-28 设计创作,主要内容包括:本公开涉及一种车辆的质心位置测量装置,该质心位置测量装置包括:底座;沿车辆的前后方向间隔布置在底座上的第一轮荷仪组和第二轮荷仪组,每个轮荷仪组对应车辆的车轮设置有相应数量的轮荷仪,以用于获取车辆每个车轮的轮载质量;升降机构,升降机构与第一轮荷仪组相连,用于驱动第一轮荷仪组沿车辆的上下方向移动;微调装置,至少一个轮荷仪组对应设置有微调装置,轮荷仪组可相对滑动地设置在微调装置的上方,使得轮荷仪组在升降过程中通过车轮施加的摩擦力作用而沿前后方向移动,从而调节第一轮荷仪组和第二轮荷仪组之间的间距。其中,微调装置能够补偿升降过程中水平方向上轴距的变化,提高车辆的稳定性。(The present disclosure relates to a centroid position measuring device of a vehicle, the centroid position measuring device including: a base; the first wheel load instrument group and the second wheel load instrument group are arranged on the base at intervals along the front-rear direction of the vehicle, and each wheel load instrument group is provided with a corresponding number of wheel load instruments corresponding to the wheels of the vehicle so as to obtain the wheel load mass of each wheel of the vehicle; the lifting mechanism is connected with the first wheel load instrument set and used for driving the first wheel load instrument set to move along the vertical direction of the vehicle; the fine adjustment device is correspondingly arranged on at least one wheel load instrument group, and the wheel load instrument groups can be arranged above the fine adjustment device in a relatively sliding mode, so that the wheel load instrument groups move in the front-back direction under the action of friction force exerted by wheels in the lifting process, and the distance between the first wheel load instrument group and the second wheel load instrument group is adjusted. Wherein, micromatic setting can compensate the change of wheel base in the horizontal direction in the lift in-process, improves the stability of vehicle.)
1. A centroid position measuring device of a vehicle, characterized by comprising:
a base (7);
the wheel load measuring device comprises a first wheel load instrument group (1) and a second wheel load instrument group (2) which are arranged on a base (7) at intervals along the front-back direction (X) of a vehicle, wherein each wheel load instrument group is provided with a corresponding number of wheel load instruments corresponding to wheels of the vehicle so as to obtain the wheel load mass of each wheel of the vehicle (200);
the lifting mechanism (3) is connected with the first wheel load instrument set (1) and is used for driving the first wheel load instrument set (1) to move along the vertical direction (Z) of the vehicle;
the fine adjustment device (4) is correspondingly arranged on at least one wheel load instrument set, the wheel load instrument set (1) can be arranged above the fine adjustment device (4) in a relatively sliding mode, so that the wheel load instrument set (1) can move along the front-back direction (X) under the action of friction force exerted by wheels in the lifting process, and the distance between the first wheel load instrument set (1) and the second wheel load instrument set (2) is adjusted.
2. The centroid position measuring device of a vehicle according to claim 1, wherein said fine adjustment device (4) comprises a body (41) and a first guide rail (42) protruding from an upper surface of said body (41), said first guide rail (42) being arranged to extend in said front-rear direction (X), a lower surface of said axle load instrument group (1) being formed with a first guide groove, said first guide groove being slidably fitted with said first guide rail (42).
3. The centroid position measurement device according to claim 1, wherein an upper surface of a wheel load meter in said wheel load meter group is formed as a rough surface.
4. The centroid position measuring device of a vehicle according to claim 1, wherein said elevating mechanism (3) includes an elevating platform (31) and a first driving device (32), a mounting groove is formed below said fine adjustment device (4), said elevating platform (31) is inserted in said mounting groove, and said first driving device (32) is used for driving said elevating platform (31) to move in said up-down direction (Z).
5. The centroid position measuring device according to claim 4, wherein said first driving device (32) comprises a first lead screw-nut mechanism and a first actuating member (323), wherein a first lead screw (321) of said first lead screw-nut mechanism is arranged along the up-down direction (Z), a first nut (322) of said first lead screw-nut mechanism is mounted on said lift table (31) and relatively rotatably sleeved on said first lead screw (321), and said first actuating member (323) is used for driving said first nut (322) to rotate so as to move said lift table (31) along the up-down direction (Z).
6. The centroid position measuring device of a vehicle according to claim 4 or 5, wherein said first driving means (32) are two, provided at both ends of said elevating platform (31), respectively, for synchronously driving both ends of said elevating platform (31) to move in an up-down direction (Z).
7. The centroid position measuring device according to claim 1, wherein said centroid position measuring device (100) further comprises a wheel base adjusting device (5), said wheel base adjusting device (5) being configured to drive said first wheel load meter group (1) to move in said front-rear direction (X) to adjust a distance between said first wheel load meter group and said second wheel load meter group.
8. The centroid position measuring device of vehicle according to claim 7, characterized in that said wheel base adjusting device (5) comprises a second guide rail (51), a sliding support (52) and a second driving device (53), said second guide rail (51) being arranged on said base (7) extending in said front-rear direction (X), said sliding support (52) being slidably fitted to said second guide rail (51), said elevating mechanism (3) being provided on said sliding support (52) to move with said sliding support (52) along said second guide rail (51) under the action of said second driving device (53).
9. The centroid position measuring device of a vehicle according to claim 8, wherein said second driving means (53) comprises a second lead screw-nut mechanism and a second actuating member (533), a second lead screw (531) of said second lead screw-nut mechanism being arranged on said base (7) extending in said front-rear direction (X), a second nut (532) of said second lead screw-nut mechanism being fixed on said sliding support (52), said second actuating member (533) being adapted to drive said second lead screw (531) in rotation so as to move said sliding support (52) along said second lead screw (531).
10. The centroid position measuring device according to claim 1, wherein at least one of the wheel load meter sets is provided with two wheel load meters in the left-right direction of the vehicle, the centroid position measuring device (100) further comprises a wheel track adjusting device (6), and the wheel track adjusting device (6) is used for adjusting the distance between the two wheel load meters.
11. The centroid position measuring device of a vehicle according to claim 10, wherein said track pitch adjusting device (6) includes a third guide rail (61) and a fourth guide rail (62), said third guide rail (61) being arranged on said elevating mechanism (3) so as to extend in said left-right direction (Y), said fine adjustment device (4) being slidably fitted to said third guide rail (61), said fourth guide rail (62) being arranged on said base (7) so as to extend in said left-right direction (Y), said second wheel loader group (2) being slidably fitted to said fourth guide rail (62).
Technical Field
The present disclosure relates to the field of vehicle centroid measurement technology, and in particular, to a centroid position measuring device for a vehicle.
Background
The performance comparison with the standard vehicle type is involved in the vehicle design process, and the center of mass position of the vehicle is one of important indexes. The centroid position of the vehicle not only reflects the mass distribution state of the whole vehicle, but also is closely related to a plurality of performance indexes, such as load transfer in acceleration and braking working conditions, vehicle body side inclination in steering working conditions and the like. In general, the position of the mass center of a vehicle in the front-back direction (X direction) and the left-right direction (Y direction) can be determined by using a common test device such as a floor scale, but the reliable measurement of the mass center in the height direction (Z direction) is always performed by using a special device such as a K & C test bed (a test bed for specially testing the motion characteristics and deformation characteristics of a suspension, and considering the mass center and the rotational inertia test of the whole vehicle), and the K & C test bed has a complex structure and is very expensive in price. In addition, the barycenter position test equipment of current vehicle appears phenomenon such as swift current car easily when lifting, consequently need set up the fixed automobile body of centre gripping instrument to firm automobile body makes test equipment more complicated.
Disclosure of Invention
An object of the present disclosure is to provide a centroid position measuring device of a vehicle, which can avoid vehicle slipping in a measurement process, and is strong in stability to partially solve the above-mentioned problems existing in the related art.
In order to achieve the above object, the present disclosure provides a centroid position measuring device of a vehicle, comprising:
a base;
the first wheel load instrument group and the second wheel load instrument group are arranged on the base at intervals along the front-rear direction of the vehicle, and each wheel load instrument group is provided with a corresponding number of wheel load instruments corresponding to the wheels of the vehicle so as to obtain the wheel load quality of each wheel of the vehicle;
the lifting mechanism is connected with the first wheel load instrument set and used for driving the first wheel load instrument set to move along the vertical direction of the vehicle;
the fine adjustment device is correspondingly arranged on at least one wheel load instrument group, and the wheel load instrument groups can be arranged above the fine adjustment device in a relatively sliding mode, so that the wheel load instrument groups move in the front-back direction under the action of friction force exerted by the wheels in the lifting process, and the distance between the first wheel load instrument group and the second wheel load instrument group is adjusted.
Optionally, the fine adjustment device includes a body and a first guide rail protruding from the upper surface of the body, the first guide rail extends along the front-back direction, a first guide groove is formed on the lower surface of the wheel load instrument set, and the first guide groove is in sliding fit with the first guide rail.
Optionally, the upper surface of the wheel load instrument in the wheel load instrument group is formed into a rough surface.
Optionally, the lifting mechanism includes a lifting platform and a first driving device, a mounting groove is formed below the fine adjustment device, the lifting platform is inserted into the mounting groove, and the first driving device is used for driving the lifting platform to move in the up-and-down direction.
Optionally, the first driving device includes a first lead screw and nut mechanism, a first lead screw of the first lead screw and nut mechanism is arranged along the up-down direction, a first nut of the first lead screw and nut mechanism is mounted on the lifting platform and sleeved on the first lead screw in a relatively rotatable manner, and a first actuating member is used for driving the first nut to rotate so as to move the lifting platform along the up-down direction.
Optionally, the number of the first driving devices is two, and the two first driving devices are respectively arranged at two ends of the lifting platform and are used for synchronously driving two ends of the lifting platform to move along the up-down direction.
Optionally, the centroid position measuring device further comprises a wheel base adjusting device, and the wheel base adjusting device is used for driving the first wheel load instrument group to move along the front-back direction so as to adjust the distance between the first wheel load instrument group and the second wheel load instrument group.
Optionally, the wheel base adjusting device includes a second guide rail, a sliding support, and a second driving device, the second guide rail is arranged on the base in an extending manner along the front-back direction, the sliding support is slidably fitted to the second guide rail, and the lifting mechanism is arranged on the sliding support to move along the second guide rail with the sliding support under the action of the second driving device.
Optionally, the second driving device includes a second lead screw and nut mechanism, a second lead screw of the second lead screw and nut mechanism is arranged on the base in an extending manner along the front-back direction, a second nut of the second lead screw and nut mechanism is fixed on the sliding support, and a second actuating member is used for driving the second lead screw to rotate so as to enable the sliding support to move along the second lead screw.
Optionally, at least one wheel load instrument group is provided with two wheel load instruments in the left and right directions of the vehicle, and the centroid position measuring device further comprises a wheel track adjusting device for adjusting the distance between the two wheel load instruments.
Optionally, the track width adjusting device includes a third rail and a fourth rail, the third rail extends along the left-right direction and is disposed on the lifting mechanism, the fine adjustment device is slidably fitted to the third rail, the fourth rail extends along the left-right direction and is disposed on the base, and the second wheel load instrument set is slidably fitted to the fourth rail.
Through above-mentioned technical scheme, in this disclosed embodiment, the barycenter position measuring device of vehicle detects the wheel loading capacity of every wheel through the wheel load appearance, through setting up elevating system to realize the test processes such as the lift and the landing of vehicle, whole part is few, simple structure, can reduction in production cost. In addition, after the vehicle is placed on the wheel load instrument, in the lifting process of the lifting mechanism, as the wheel base of the vehicle in the lifting state in the horizontal direction is smaller than that in the horizontal state, namely, in the lifting and lowering processes of the vehicle by the lifting mechanism, the wheels of the vehicle can generate friction force with the upper surface of the wheel load instrument, and under the action of the friction force, the wheel load instrument drives the fine adjustment device to move so as to compensate the change of the wheel base in the horizontal direction in the lifting process, thereby avoiding the phenomena of vehicle sliding and the like caused by the sliding of the wheels on the wheel load instrument and improving the stability of the vehicle; due to the adaptive adjustment of the fine adjustment device, other devices are not needed for fixing the vehicle, and the structure of the centroid measuring device is further simplified.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic structural view of a centroid position measuring apparatus of a vehicle according to an embodiment of the present disclosure, wherein a first wheel load meter group is in a horizontal state;
FIG. 2 is a schematic structural diagram of a centroid position measuring device of a vehicle according to an embodiment of the present disclosure, wherein a first wheel load instrument set is in a lifting state;
FIG. 3 is a schematic structural diagram of a centroid position measuring device of a vehicle in an embodiment of the disclosure at another viewing angle, wherein a first wheel load instrument set is in a lifting state;
fig. 4 is a schematic structural view of a centroid position measuring device of a vehicle in an embodiment of the present disclosure, wherein the vehicle is placed on the centroid position measuring device;
FIG. 5 is a side view of a centroid position measuring apparatus of a vehicle in an embodiment of the present disclosure, wherein a first wheel load gauge set is in a horizontal state;
fig. 6 is a side view of a centroid position measuring apparatus of a vehicle in an embodiment of the present disclosure, wherein a first wheel load instrument set is in a lifted state.
Description of the reference numerals
X, the front-back direction; y, left and right direction; z, up-down direction; 100. a centroid position measuring device; 200. a vehicle; 1. a first wheel load instrument set; 2. a second wheel load instrument set; 3. a lifting mechanism; 31. a lifting platform; 32. a first driving device; 321. a first lead screw; 322. a first nut; 323. a first actuator; 324. a guide bar; 4. a fine adjustment device; 41. a body; 42. a first guide rail; 5. a wheel base adjusting device; 51. a second guide rail; 52. a sliding support; 53. a second driving device; 531. a second lead screw; 532. a second nut; 533. a second actuator; 6. a track adjusting device; 61. a third guide rail; 62. a fourth guide rail; 7. a base;
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, the terms "front and rear" used herein generally refer to directions toward the front of the vehicle and toward the rear of the vehicle, and refer to directions indicated by an arrow "X" in the drawings, "left and right" refer to directions toward the left and right sides of the vehicle, respectively, with reference to the front of the vehicle, and refer to directions indicated by an arrow "Y" in the drawings, "up and down" refer to directions toward the ceiling of the vehicle and toward the floor of the vehicle, respectively, and refer to directions indicated by an arrow "Z" in the drawings. In addition, it is to be understood that the terms "first," "second," and the like are used for distinguishing one element from another, and are not necessarily order nor importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.
In the related art, the inventor of the present application found that the root cause of the instability of the vehicle such as rolling during the test is that when the vehicle is lifted in an inclined manner, the horizontal component of the wheel base of the chassis is reduced, so that the wheels can slip relative to the test bench, thereby affecting the stability of the vehicle.
Based on this, in order to solve the above technical problem, the present disclosure provides a centroid
The
At least one wheel load instrument set is correspondingly provided with a
According to the structure of the centroid
first, the
Secondly, adjusting the two wheel load instrument groups to be in a horizontal state, namely the upper surface of each wheel load instrument in the first wheel load instrument group 1 and the second wheel
And thirdly, starting the
And fourthly, calculating the centroid position of the
According to the above technical scheme, in the embodiment of the present disclosure, the centroid
The
For example, the axial length of the
The lengths of the
It should be understood here that in the embodiments of the present disclosure, the
Alternatively, in the disclosed embodiment, in order to keep the wheel and the axle load instrument relatively stationary while the friction force generated between the wheel and the axle load instrument is sufficient to drive the axle load instrument to move relative to the
In the embodiment of the present disclosure, as shown in fig. 2 and 3, the
In an example of the present disclosure, as shown in fig. 1 to 6, the
Here, the
In the embodiment of the present disclosure, two
In other embodiments of the present disclosure, the number of the
Since different vehicle models have different wheel bases and wheel bases, in order to improve the versatility of the centroid
The track width adjusting device 6 may be formed in any suitable structure, and in the embodiment of the present disclosure, as shown in fig. 1 to 4, the wheel
Specifically, as shown in fig. 1, in the embodiment of the present disclosure, the
Further, as shown in fig. 1 to 4, the
Here, as shown in fig. 1, the
In addition, in other embodiments of the present disclosure, the sliding
In an embodiment of the present disclosure, at least one wheel load instrument set is provided with two wheel load instruments along the left-right direction Y of the
Illustratively, the track width adjusting device 6 includes a
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
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