CN220270324U - Motorcycle steering angle measuring device - Google Patents
Motorcycle steering angle measuring device Download PDFInfo
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- CN220270324U CN220270324U CN202320981938.0U CN202320981938U CN220270324U CN 220270324 U CN220270324 U CN 220270324U CN 202320981938 U CN202320981938 U CN 202320981938U CN 220270324 U CN220270324 U CN 220270324U
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- 238000012937 correction Methods 0.000 claims abstract description 49
- 238000005259 measurement Methods 0.000 claims abstract description 31
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- 230000008901 benefit Effects 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 7
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- 230000008859 change Effects 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The utility model relates to the technical field of measuring devices, in particular to a motorcycle steering angle measuring device. The angle measuring component is used for measuring a first steering angle of a front wheel of the motorcycle, the correction coefficient measuring component is used for measuring a correction coefficient when the front wheel is steered, and the correction coefficient is used for correcting the first steering angle; the first steering angle is corrected by using the correction coefficient, so that the obtained data for measuring the steering angle is more accurate, and inaccurate measurement data caused by movement of the position of the contact point of the front wheel and the ground in the measurement process is avoided.
Description
Technical Field
The utility model relates to the technical field of measuring devices, in particular to a motorcycle steering angle measuring device.
Background
Along with the gradual and vigorous market competition, people attach more and more importance to the quality problem of the motorcycle, and the range of the steering angle of the front wheel of the motorcycle influences various parameters such as driving operability, steering angle, safety and the like, so before the motorcycle leaves the factory, the maximum angle of the left and right steering of the front wheel of the motorcycle must meet national and industry standards, and the motorcycle can leave the factory after being inspected to be qualified. The prior art uses a measuring device to detect the steering angle of the front wheel of the motorcycle, but the measuring device has the defect of inaccurate measurement.
Disclosure of Invention
In view of the above, the present utility model aims to provide a motorcycle steering angle measuring device, so as to solve or partially solve the problem that the existing measuring device has inaccurate measurement.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a motorcycle steering angle measuring device comprises an angle measuring component and a correction coefficient measuring component; the angle measuring component is used for measuring a first steering angle of a front wheel of the motorcycle, the correction coefficient measuring component is used for measuring a correction coefficient when the front wheel is steered, and the correction coefficient is used for correcting the first steering angle; the correction coefficient measuring assembly comprises a first light emitter and a first length graduated scale, wherein the first light emitter is fixedly connected with a frame of the motorcycle, first light emitted downwards by the first light emitter in an inclined mode irradiates on the first length graduated scale, and the first light emitter and the first length graduated scale are both used for measuring the correction coefficient.
When the front wheel is at the initial position, the projection position of the first light emitter to the plane where the first length scale is positioned is the original point position; and when the front wheel is at the initial position, an included angle between a connecting line of the first light emitter and the original point position and a connecting line of the first light emitter and the original point position after the front wheel is rotated is the correction coefficient.
Further, the angle measurement assembly comprises a first measurement assembly and a second measurement assembly, the first measurement assembly is used for measuring a second steering angle of a handlebar of the motorcycle, the second measurement assembly is used for measuring a third steering angle of the front wheel, and when the difference between the second steering angle and the third steering angle is smaller than or equal to a second set value, the second steering angle or the third steering angle is the first steering angle.
Further, the first measuring assembly comprises a first rotating piece and a first display piece, the first rotating piece is fixedly connected with the handlebar and is positioned on the rotating axis of the handlebar, and the first rotating piece rotates along with the handlebar; the first display member displays the second steering angle at which the first rotating member rotates.
Further, the first measuring assembly further comprises a first fixing piece, a first connecting rod and a first sucker; the first fixing piece is positioned on the upper side of the first rotating piece and is rotatably connected with the first rotating piece; the first display piece is positioned on the upper side of the first fixing piece; one end of the first connecting rod is fixedly connected with the first fixing piece, the other end of the first connecting rod is fixedly connected with the first sucking disc, and the first sucking disc is fixedly connected with the frame; when the first rotating piece rotates along with the handlebar, the first connecting rod keeps the first fixing piece stationary relative to the frame, and the rotating angle of the first rotating piece relative to the first fixing piece is the second steering angle.
Further, the second measuring assembly comprises a second light emitter and an angle graduated scale, the second light emitter is positioned at the front side of the front wheel and is fixedly connected with the front wheel, second light emitted by the second light emitter coincides with the advancing direction of the front wheel, and the circle center of the angle graduated scale is positioned at the contact position of the front wheel and the ground; when the front wheel rotates, the second light irradiates on the angle graduated scale, and the angle graduated scale displays the third steering angle.
Further, the motorcycle steering angle measuring device further comprises a third light emitter and a second length graduated scale, the third light emitter is connected with the side wall of the front wheel, third light emitted by the third light emitter is parallel to a connecting line between the center of the front wheel and the center of the rear wheel of the motorcycle, the third light irradiates the second length graduated scale, and the first length displayed by the second length graduated scale is used for verifying the position of the front wheel.
Further, the motorcycle steering angle measuring device further comprises a fourth light emitter, the fourth light emitter is connected with the side wall of the rear wheel, fourth light emitted by the fourth light emitter is parallel to a connecting line between the center of the front wheel and the center of the rear wheel, the fourth light irradiates on the second length scale, and the second length displayed by the second length scale is used for checking the position of the rear wheel.
Further, the middle part of second length scale sets up first magnetism portion, the middle part of angle scale sets up second magnetism portion, second length scale is located the outside of angle scale, first magnetism portion with second magnetism portion connects.
Further, the first light emitter comprises an infrared laser head; and/or the second light emitter comprises an infrared laser head; and/or, the third light emitter comprises an infrared laser head; and/or, the fourth light emitter comprises an infrared laser head.
Compared with the prior art, the motorcycle steering angle measuring device has the following advantages:
according to the motorcycle steering angle measuring device, when the steering angle of the front wheel of the motorcycle is measured, the angle measuring component is used for measuring the first steering angle of the front wheel of the motorcycle, the correction coefficient measuring component is used for measuring the correction coefficient when the front wheel is steered, and the correction coefficient is used for correcting the first steering angle, so that the obtained data for measuring the steering angle is more accurate, and inaccurate measured data caused by movement of the position of the contact point of the front wheel 93 and the ground in the measuring process is avoided.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of a motorcycle according to an embodiment of the present utility model;
FIG. 2 is a schematic structural view of the rear view of the motorcycle shown in FIG. 1;
FIG. 3 is a schematic view of the movement position of the motorcycle shown in FIG. 2 during front wheel rotation of the motorcycle;
FIG. 4 is a schematic diagram of a top view of a motorcycle according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a portion of a first measurement assembly according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a top view of the motorcycle of FIG. 1;
FIG. 7 is a schematic diagram of the calculation of correction coefficients;
FIG. 8 is a second schematic diagram of the calculation of correction coefficients;
FIG. 9 is a schematic diagram III of the calculation of correction coefficients;
FIG. 10 is a schematic diagram of correction coefficient calculation;
fig. 11 is a schematic diagram of calculation of correction coefficients.
Reference numerals illustrate:
1-a first light emitter; 11-a first ray; 2-a second light emitter; 3-a third light emitter; 31-third light; 4-fourth light emitters; 41-fourth light; 5-a second length scale; 6-an angle graduated scale; 7-a first length scale; 81-a first rotating member; 82-a first securing member; 83-a first display; 84-a first connecting rod; 85-a first suction cup; 91-a frame; 92-handle bar; 93-front wheel; 94-rear wheels; 95-calibration straight line.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In addition, the front and rear referred to in the embodiments of the present utility model refer to the front and rear with respect to the advancing direction of the motorcycle.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The embodiment of the application provides a motorcycle steering angle measuring device, which comprises an angle measuring component and a correction coefficient measuring component; the angle measuring component is used for measuring a first steering angle of the front wheel 93 of the motorcycle, and the correction coefficient measuring component is used for measuring a correction coefficient when the front wheel 93 is steered; the correction coefficient measuring assembly comprises a first light emitter 1 and a first length graduated scale 7, wherein the first light emitter 1 is fixedly connected with a frame 91 of a motorcycle, a first light ray 11 emitted downwards by the first light emitter 1 in an inclined mode irradiates on the first length graduated scale 7, and the first light emitter 1 and the first length graduated scale 7 are both used for measuring correction coefficients. When the front wheel 93 is at the initial position, the projection position of the first light emitter 1 to the plane of the first length scale 7 is the origin position; when the front wheel 93 is at the initial position, the included angle between the line connecting the first light emitter 1 and the origin position and the line connecting the first light emitter 1 and the origin position after the front wheel 93 turns is a correction coefficient.
Specifically, the first light emitter 1 is fixedly connected with the frame 91, and the specific fixing position can be set according to actual requirements, for example, the first light emitter 1 is fixed at an oil tank of the frame 91, or a protruding portion on a side surface of the frame 91 needs to meet that the first light 11 can be irradiated obliquely downwards.
The front wheels 93 are in an initial position, i.e., in a state when the front wheels 93 are not turned. When the front wheel 93 is in the initial position, the included angle between the first light ray 11 sent downwards by the first light ray emitter 1 obliquely and the vertical direction is a first angle beta, and the height h from the first light ray emitter 1 to the plane where the first length scale 7 is located, wherein the plane where the first length scale 7 is located is generally the ground. The first angle β and the height h need to be set according to the field size and the flatness, for example, for the height h of the first light emitter 1, the field leveling area is relatively large and can be relatively small, and when the field unevenness size is limited, the field leveling area can be relatively large; for the first angle beta, the larger value can be relatively taken when the field leveling area is larger, and the smaller value can be relatively taken when the field unevenness is limited. The first angle β and the height h of the first light emitter 1 need to ensure that the first length scale 7 can clearly read the scale variation value.
For the height h of the first light emitter 1, a measurement can also be made using the first length scale 7. For example, when the front wheel 93 is at the initial position, after the first length scale 7 measures the height of the first light emitter 1, the first length scale 7 is placed on the ground for the first light 11 emitted by the first light emitter 1 obliquely downwards, and when the front wheel 93 is at the initial position and after the front wheel 93 turns, the position of the first light 11 irradiated on the first length scale 7 is measured.
In this embodiment, when the front wheel 93 is not turned, the position of the first light 11 is shown in fig. 2, and when the front wheel 93 is turned clockwise and turned counterclockwise, the frame 91 is inclined to a certain extent, so that the position of the first light 11 irradiated on the first length scale 7 is changed, that is, the position of the first light 11 irradiated on the first length scale 7 is changed, and the change value can be used to calculate the correction coefficient.
Referring to fig. 2, the first light emitter 1 is fixed on the side surface of the frame 91, so as to avoid the influence of other structures on the frame 91 on the propagation of the first light 11, and ensure that the first light 11 can be clearly and accurately irradiated on the first length scale 7.
Further, the correction coefficient may be calculated according to the pythagorean theorem, which is not limited in this embodiment, and the calculation process is, for example:
referring to fig. 7, a schematic diagram of calculation of the correction coefficient is shown, fig. 7 is a simplified diagram of a schematic diagram of the front wheel 93 shown in fig. 2 in an initial position, and fig. 8 is a simplified diagram of the front wheel 93 shown in fig. 3 in a turned state.
When the front wheel 93 is in the initial position, i.e., when the front wheel 93 is not turned, the first light emitter 1 is located at point B, as shown with reference to fig. 9.
The height of the point B is h, and the included angle between the first light ray 11 and the vertical direction is a first angle beta.
The length of OA is known as oa=tan β×h from the trigonometric function.
When the front wheel 93 turns to the right, the motorcycle is tilted in the right direction as shown in fig. 10.
Since it rotates about point O, od=ob=h, ++oba= ++odc=β;
the correction coefficient is ++BOD, the ++BOD is eta, and the ++DOC=pi/2-eta
According to the sine theorem in trigonometric functions, a/sina=b/sinβ=2r,
knowing OD, < ODC, < DOC,:
because +.DCO=pi- +.ODC- +.DOC=pi-beta-pi/2-eta, so
As can be seen from the figure, ac=oa-OC, AC is the offset fcw of the first light ray 11 when the motorcycle is tilted to the right,
when the front wheel 93 turns to the left, the motorcycle is tilted in the left direction as shown in fig. 11.
Referring to the above-described derivation, in the triangle Δofe,
from the figure, ae=oe-OA, AE being fccw of the first ray 11 when the motorcycle is tilted to the left,
since AC and AE can read out data directly on the first length scale 7, η and η' can be calculated as correction coefficients.
In the embodiment of the present application, the correction coefficient is used for correcting the first steering angle, and the correction manner in the embodiment of the present application is that the correction coefficient and the first steering angle are added, that is, the sum of the first steering angle and the correction coefficient is the steering angle of the front wheel 93 of the motorcycle measured by the steering angle measuring device of the motorcycle.
The first light emitter 1 and the frame 91 can be connected in a magnetic attraction mode, namely, the first light emitter 1 is provided with a first magnetic piece, and the first magnetic piece is adsorbed at the frame 91, so that the connection mode has the advantage of simplicity in operation.
When the motorcycle steering angle measuring device disclosed by the embodiment of the application is used for measuring the steering angle of the front wheel 93 of the motorcycle, besides the angle measuring component is used for measuring the first steering angle of the front wheel 93 of the motorcycle, the correction coefficient measuring component is also used for measuring the correction coefficient when the front wheel 93 is steered, and the correction coefficient is used for correcting the first steering angle, so that the obtained data for measuring the steering angle are more accurate, and inaccurate measured data caused by movement of the position of the contact point between the front wheel 93 and the ground in the measuring process are avoided.
Further, when the motorcycle steering angle measuring device measures the steering of the front wheel 93, the correction coefficient is calculated again when the change in the position of the first light 11 irradiated on the first length scale 7 is equal to or less than the first set value. When the position change of the first light ray 11 irradiated on the first length scale 7 is larger than the first set value, the error in the measuring process is larger, the detection result is invalid, and re-detection is needed.
The first setting value may be set according to a user requirement, which is not specifically limited in the embodiment of the present application. For example, the first set value is 10mm.
In an embodiment, the angle measuring assembly includes a first measuring assembly for measuring a second steering angle of the handlebar 92 of the motorcycle, and a second measuring assembly for measuring a third steering angle of the front wheel 93, and the second steering angle or the third steering angle is the first steering angle when the second steering angle and the third steering angle differ by a second set value or less.
It will be appreciated that the handle bar 92 and the front wheel 93 are rotated simultaneously, and that the angle of rotation of the handle bar 92 and the front wheel 93 is the same. When the difference between the second steering angle and the third steering angle is smaller than a second set value, the second steering angle and the third steering angle can be selected as the first steering angle according to the use requirement or the stipulation at the moment for the detection result to be effective. When the difference between the second steering angle and the third steering angle is larger than a second set value, the error of the detection result is larger, and when the detection result is invalid, the detection is required to be re-detected. The first measuring assembly and the second measuring assembly can be mutually calibrated, and then data of the steering angle can be measured more accurately.
Referring to fig. 4 and 5, in one embodiment, the first measuring assembly includes a first rotating member 81 and a first display member 83, wherein the first rotating member 81 is fixedly connected to the handlebar 92 and is located on the rotation axis of the handlebar 92, and the first rotating member 81 rotates along with the handlebar 92; the first display member 83 displays a second steering angle at which the first rotating member 81 rotates.
The first rotating member 81 is located on the rotation axis of the handle 92, when the handle 92 rotates, the first rotating member 81 rotates along with the handle 92 and rotates by the same angle as the handle 92, the rotation angle of the first rotating member 81 is the second steering angle of the handle 92, and the first display member 83 displays the second steering angle, so that the reading is simple and convenient.
Referring to fig. 4 and 5, in one embodiment, the first measurement assembly further includes a first fixture 82, a first connecting rod 84, and a first suction cup 85; the first fixing member 82 is located at the upper side of the first rotating member 81 and rotatably connected with the first rotating member 81; the first display piece 83 is located on the upper side of the first fixing piece 82; one end of a first connecting rod 84 is fixedly connected with a first fixing piece 82, the other end of the first connecting rod 84 is fixedly connected with a first sucking disc 85, and the first sucking disc 85 is fixedly connected with a frame 91; when the first rotating member 81 rotates with the handle bar 92, the first connecting rod 84 keeps the first fixing member 82 stationary with respect to the frame 91, and the rotation angle of the first rotating member 81 with respect to the first fixing member 82 is the second steering angle.
Referring to fig. 4 and 5, the first display member 83 is located on the upper side of the first fixing member 82, the first fixing member 82 is located on the upper side of the first rotating member 81, the first rotating member 81 is fixedly connected to the handle 92, and in practical applications, the first rotating member 81 and the first fixing member 82 may be rotatably connected in various manners, for example, the first rotating member 81 is connected to the first fixing member 82 through a rotatable member such as a rotating shaft. The first connecting rod 84 keeps the first fixing member 82 stationary with respect to the frame 91, i.e., the first fixing member 82 does not rotate with the first rotating member 81. In the process that the first rotating member 81 rotates along with the handlebar 92, the first rotating member 81 and the first fixing member 82 rotate relatively, and the first display member 83 displays the relative rotation angle between the first rotating member 81 and the first fixing member 82, which is the second steering angle.
It is to be understood that the first display member 83 is not particularly limited in this application, and for example, the first display member 83 is an angled display screen.
In practical applications, the first measuring assembly is an independent measuring unit that measures the second steering angle of the handlebar 92 alone. The first measuring assembly may be selected from the technologies existing in the prior art, for example, the first measuring assembly may be provided with a portable power source for supplying power, for example, a battery is used as the power source, relative rotation is generated between the first rotating member 81 and the first fixed member 82, the resistance of the sliding rheostat in the first measuring assembly is changed, voltage is caused to change, the voltage and the second steering angle are subjected to data calibration, and the second steering angle is displayed in the first display member 83.
It will be appreciated that in practical applications, the first measurement assembly has a zero reset function, which facilitates the use of the front wheel 93 and rear wheel 94 of the motorcycle in alignment and zero clearing.
In one embodiment, the first rotary member 81 is attached to the handlebar 92 by adhesive or is fixed to the handlebar 92 using an attachment tool.
And the first sucking disc 85 is fixedly connected with the frame 91, so that the connection is simple and convenient. The specific structure of the first suction cup 85 may be selected according to the requirement of use, which is not limited in the embodiment of the present application.
Referring to fig. 6, in an embodiment, the second measuring assembly includes a second light emitter 2 and an angle scale 6, the second light emitter 2 is located at the front side of the front wheel 93 and is fixedly connected with the front wheel 93, the second light emitted by the second light emitter 2 coincides with the advancing direction of the front wheel 93, and the center of the angle scale 6 is located at the contact position of the front wheel 93 and the ground; when the front wheel 93 rotates, the second light irradiates on the angle scale 6, and the angle scale 6 displays the third steering angle.
When the second light emitter 2 rotates along with the front wheel 93, the direction of the second light keeps coincident with the advancing direction of the front wheel 93, so that the reading of the second light irradiated on the angle scale 6 is the third steering angle of the front wheel 93, and an operator can rapidly read the third steering angle through the angle scale 6.
Referring to fig. 1 and 6, in an embodiment, the steering angle measuring device of the motorcycle further includes a third light emitter 3 and a second length scale 5, the third light emitter 3 is connected to a side wall of the front wheel 93, the third light 31 emitted by the third light emitter 3 is parallel to a line connecting a center of the front wheel 93 and a center of the rear wheel 94 of the motorcycle, the third light 31 irradiates the second length scale 5, and a first length displayed by the second length scale 5 is used for verifying a position of the front wheel 93.
When the motorcycle is not turned, the position of the third light ray 31 irradiated on the second length scale 5 is displayed as a first length, and when the front wheel 93 finishes turning and returns to the forward state, the third light ray 31 should be irradiated on the first length again, so as to ensure that the position of the contact point between the front wheel 93 and the ground is not moved, and ensure that the measurement result is accurate. If the contact point position of the front wheel 93 with the ground moves, it is necessary to move the front wheel 93 back to the initial contact point position with the ground, re-measure, etc., so that the measurement result is accurate.
Referring to fig. 1 and 6, in an embodiment, the steering angle measuring device of the motorcycle further includes a fourth light emitter 4, the fourth light emitter 4 is connected to a side wall of the rear wheel 94, the fourth light 41 emitted by the fourth light emitter 4 is parallel to a line connecting the center of the front wheel 93 and the center of the rear wheel 94, the fourth light 41 irradiates the second length scale 5, and the second length displayed by the second length scale 5 is used for checking the position of the rear wheel 94.
When the motorcycle is not turned, the position of the fourth light 41 irradiated on the second length scale 5 is displayed as a second length, and when the front wheel 93 finishes turning and returns to the forward state, the fourth light 41 should be irradiated on the second length again to ensure that the position of the contact point between the front wheel 93 and the ground is not moved, the frame 91 is not deviated, and the accuracy of the measurement result is ensured. If the contact point position of the front wheel 93 with the ground moves, it is necessary to move the front wheel 93 back to the initial contact point position with the ground, re-measure, etc., so that the measurement result is accurate.
In this embodiment of the application, utilize third light transmitter 3 and fourth light transmitter 4 to check up the position of front wheel 93 and rear wheel 94, and then check up the position of motorcycle, have the advantage that the check-up mode is simple, effectively ensure that the front wheel 93 turns to the data accuracy in the angle measurement process.
In an embodiment, the third light emitter 3 further includes a third magnetic member, and the third light emitter 3 is attached to the rim surface of the front wheel 93 by the third magnetic member, and this connection method has the advantage of simplicity and convenience.
In an embodiment, the fourth light emitter 4 further includes a fourth magnetic member, and the fourth light emitter 4 is attached to the rim surface of the rear wheel 94 by the fourth magnetic member, and this connection method also has advantages of simplicity and convenience.
In an embodiment, the middle part of the second length scale 5 is provided with a first magnetic part, the middle part of the angle scale 6 is provided with a second magnetic part, the second length scale 5 is positioned at the outer side of the angle scale 6, and the first magnetic part is connected with the second magnetic part.
The arrangement of the first magnetic part and the second magnetic part ensures that the second length graduated scale 5 and the angle graduated scale 6 can be simply and conveniently connected, and the position between the second length graduated scale 5 and the angle graduated scale 6 can be ensured to be relatively fixed, thereby effectively ensuring accurate data in the steering angle measurement process of the front wheel 93.
In one embodiment, the second length scale 5 is a folding scale, two ends of the second length scale can be folded in half, and a first magnetic part is arranged at the folded position; the angle graduated scale 6 is also a folding scale, two ends of the angle graduated scale can be folded in half, and a second magnetic part is arranged at the folding position. The above-described structure of the second length scale 5 and the angle scale 6 has an advantage of convenience in carrying.
In one embodiment, the first light emitter 1 comprises an infrared laser head; and/or the second light emitter 2 comprises an infrared laser head; and/or the third light emitter 3 comprises an infrared laser head; and/or the fourth light emitter 4 comprises an infrared laser head.
The infrared laser head can release strong light rays, has clear directivity, and the light outlet of the infrared laser head can be adjusted to be point type, linear type and the like, the linear width can be adjusted, the ray colors can be adjusted, such as red, yellow, blue and the like, and then the first light ray 11, the second light ray, the third light ray 31 and the fourth light ray 41 can meet the use requirements. It will be appreciated that the first light 11, the second light 31, the third light 31, and the fourth light 41 each have a characteristic of propagating along a specific line, and can quickly and clearly read data.
In the motorcycle steering angle measuring device in the embodiment of the application, besides the angle measuring component is used for measuring the first steering angle of the front wheel 93 of the motorcycle, the correction coefficient measuring component is also used for measuring the correction coefficient when the front wheel 93 is steered, and the correction coefficient is used for correcting the first steering angle, so that the obtained data for measuring the steering angle is more accurate. The angle measuring assembly comprises a first measuring assembly and a second measuring assembly, and an accurate first steering angle is obtained by utilizing data verification between the first measuring assembly and the second measuring assembly; and utilize third light emitter 3, second length scale 5 and the check-up of fourth light emitter 4 to the motorcycle position, motorcycle turns to angle measuring device and makes the data of measuring the angle of turning to more accurate through above-mentioned structure, reduces test equipment cost simultaneously, and simple structure is relative, and convenient removal, and area is little, and application scope is wider.
The testing process using the motorcycle steering angle measuring device comprises the following steps:
referring to fig. 6, a calibration straight line 95 is provided on a flat ground surface.
Placing the motorcycle to be tested on a flat ground, and balancing the rear wheel 94 of the motorcycle by using a frame or a frame of the motorcycle, so as to ensure that the motorcycle cannot move and the motorcycle body is balanced; and such that the projection of the line connecting the centers of the front wheel 93 and the rear wheel 94 of the motorcycle on the ground coincides with the calibration straight line 95.
The first measuring assembly is installed, the first rotating member 81 is fixed on the handle bar 92, the first suction cup 85 is connected with the oil tank of the motorcycle, and the first measuring assembly is zeroed, so that the first display member 83 is displayed as zero.
The first, second, third and fourth light emitters 1, 2, 3 and 4 are installed. A first length scale 7, an angle scale 6 and a second length scale 5 are installed. The first light ray 11 emitted by the first light ray emitter 1 irradiates the first length scale 7, the second light ray emitted by the second light ray emitter 2 coincides with the calibration straight line 95, the third light ray 31 emitted by the third light ray emitter 3 and the fourth light ray 41 emitted by the fourth light ray emitter 4 are parallel to the calibration straight line 95, at this time, the distance between the third light ray 31 and the fourth light ray 41 is 0.5 x (b-a), wherein b is the width of the rear wheel 94, and a is the width of the front wheel 93.
The front wheel 93 is rotated clockwise or counterclockwise to the maximum angle, and then the second steering angle and the third steering angle are read, and the second steering angle and the third steering angle are compared to obtain the first steering angle. The position change value of the first light is obtained by the first length scale 7, and according to the formula,
the correction system η is obtained, and the measured steering angle of the front wheels 93 is the sum of the first steering angle and the correction coefficient η.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (9)
1. The motorcycle steering angle measuring device is characterized by comprising an angle measuring component and a correction coefficient measuring component; the angle measuring assembly is used for measuring a first steering angle of a front wheel (93) of the motorcycle, the correction coefficient measuring assembly is used for measuring a correction coefficient when the front wheel (93) is steered, and the correction coefficient is used for correcting the first steering angle;
the correction coefficient measuring assembly comprises a first light emitter (1) and a first length graduated scale (7), wherein the first light emitter (1) is fixedly connected with a frame (91) of the motorcycle, a first light (11) emitted downwards by the first light emitter (1) in an inclined mode irradiates on the first length graduated scale (7), and the first light emitter (1) and the first length graduated scale (7) are both used for measuring the correction coefficient.
2. The motorcycle steering angle measurement device according to claim 1, characterized in that the angle measurement assembly includes a first measurement assembly for measuring a second steering angle of a handlebar (92) of the motorcycle and a second measurement assembly for measuring a third steering angle of the front wheel (93), the second steering angle or the third steering angle being the first steering angle when the second steering angle and the third steering angle differ by a second set value or less.
3. The motorcycle steering angle measurement device according to claim 2, characterized in that the first measurement assembly comprises a first rotation member (81) and a first display member (83), the first rotation member (81) being fixedly connected to the handlebar (92) and being located on the rotation axis of the handlebar (92), the first rotation member (81) rotating with the handlebar (92); the first display member (83) displays the second steering angle by which the first rotating member (81) rotates.
4. A motorcycle steering angle measurement device according to claim 3, characterized in that the first measurement assembly further comprises a first fixing member (82), a first connecting rod (84) and a first suction cup (85); the first fixing piece (82) is positioned on the upper side of the first rotating piece (81) and is rotatably connected with the first rotating piece (81); the first display piece (83) is positioned on the upper side of the first fixing piece (82); one end of the first connecting rod (84) is fixedly connected with the first fixing piece (82), the other end of the first connecting rod (84) is fixedly connected with the first sucker (85), and the first sucker (85) is fixedly connected with the frame (91);
when the first rotating member (81) rotates along with the handlebar (92), the first connecting rod (84) keeps the first fixing member (82) stationary relative to the frame (91), and the rotation angle of the first rotating member (81) relative to the first fixing member (82) is the second steering angle.
5. The motorcycle steering angle measurement device according to claim 2, characterized in that the second measurement assembly comprises a second light emitter (2) and an angle graduated scale (6), the second light emitter (2) is positioned at the front side of the front wheel (93) and is fixedly connected with the front wheel (93), the second light emitted by the second light emitter (2) coincides with the advancing direction of the front wheel (93), and the center of the angle graduated scale (6) is positioned at the contact position of the front wheel (93) and the ground;
when the front wheel (93) rotates, the second light irradiates on the angle graduated scale (6), and the angle graduated scale (6) displays the third steering angle.
6. The device according to claim 5, further comprising a third light emitter (3) and a second length scale (5), wherein the third light emitter (3) is connected to a side wall of the front wheel (93), a third light ray (31) emitted by the third light emitter (3) is parallel to a line connecting a center of the front wheel (93) and a center of a rear wheel (94) of the motorcycle, the third light ray (31) irradiates the second length scale (5), and a first length displayed by the second length scale (5) is used for verifying a position of the front wheel (93).
7. The device according to claim 6, further comprising a fourth light emitter (4), wherein the fourth light emitter (4) is connected to a side wall of the rear wheel (94), a fourth light ray (41) emitted by the fourth light emitter (4) is parallel to a line connecting a center of the front wheel (93) and a center of the rear wheel (94), the fourth light ray (41) irradiates the second length scale (5), and a second length displayed by the second length scale (5) is used for verifying a position of the rear wheel (94).
8. The motorcycle steering angle measurement device according to claim 6, wherein a first magnetic portion is provided in the middle of the second length scale (5), a second magnetic portion is provided in the middle of the angle scale (6), the second length scale (5) is located outside the angle scale (6), and the first magnetic portion and the second magnetic portion are connected.
9. The motorcycle steering angle measurement device according to claim 7, characterized in that,
the first light emitter (1) comprises an infrared laser head; and/or the number of the groups of groups,
the second light emitter (2) comprises an infrared laser head; and/or the number of the groups of groups,
the third light emitter (3) comprises an infrared laser head; and/or the number of the groups of groups,
the fourth light emitter (4) comprises an infrared laser head.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022214981084 | 2022-06-15 | ||
| CN202221498108 | 2022-06-15 |
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| Publication Number | Publication Date |
|---|---|
| CN220270324U true CN220270324U (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320981938.0U Active CN220270324U (en) | 2022-06-15 | 2023-04-26 | Motorcycle steering angle measuring device |
| CN202310465091.5A Pending CN116608757A (en) | 2022-06-15 | 2023-04-26 | Motorcycle steering angle measuring device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310465091.5A Pending CN116608757A (en) | 2022-06-15 | 2023-04-26 | Motorcycle steering angle measuring device |
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| Country | Link |
|---|---|
| CN (2) | CN220270324U (en) |
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2023
- 2023-04-26 CN CN202320981938.0U patent/CN220270324U/en active Active
- 2023-04-26 CN CN202310465091.5A patent/CN116608757A/en active Pending
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| CN116608757A (en) | 2023-08-18 |
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