CN112284772A - Portable wheel type tractor guide wheel deflection angle measuring method and device - Google Patents
Portable wheel type tractor guide wheel deflection angle measuring method and device Download PDFInfo
- Publication number
- CN112284772A CN112284772A CN202010979949.6A CN202010979949A CN112284772A CN 112284772 A CN112284772 A CN 112284772A CN 202010979949 A CN202010979949 A CN 202010979949A CN 112284772 A CN112284772 A CN 112284772A
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- Prior art keywords
- upper cover
- base
- track
- guide wheel
- limiting plate
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
Abstract
The invention discloses a portable wheel type tractor guide wheel deflection angle measuring method and a device, wherein the center of the upper surface of a base is fixedly connected with the bottom end of an angle sensor, the top end of the angle sensor is fixedly connected with the center of an upper cover, the central shaft of the angle sensor is collinear with the central shafts of the base and the upper cover, the upper surface of the upper cover is fixedly provided with a left limiting plate and a right limiting plate which are symmetrically arranged relative to the center of the upper cover, the lower part of the base is connected with four track wheels which are uniformly arranged along the center of the base, the lower parts of every two track wheels are matched with a track, and the track is laid along the sliding; the device comprises a guide wheel of a tractor to be measured, an upper cover, an angle sensor, a left limiting plate, a right limiting plate.
Description
Technical Field
The invention relates to the field of vehicle automatic driving control systems, in particular to automatic driving control of a wheeled tractor in agricultural machinery, and specifically relates to a device and a method for measuring a guide wheel deflection angle of the wheeled tractor.
Background
In recent years, intelligent agricultural equipment is rapidly developed, and the automatic driving technology of agricultural machinery makes breakthrough progress. The dynamic response relation between the steering wheel angle and the steering wheel angle is one of the control parameters for automatic driving of tractor. If the relation between the steering wheel rotating angle and the guide wheel rotating angle is directly measured on the ground, the accuracy of measurement is affected due to the existence of ground friction resistance, so that interference factors such as ground resistance and the like need to be eliminated.
Chinese patent publication No. CN107478188A discloses a measuring instrument for measuring the rotation angle of a wheel of an automobile, which is characterized in that a base of a corner plate is fixed on the ground, an upper cover of the corner plate is placed above the base, and a rotation angle sensor is placed between the base and the upper cover of the corner plate to measure the rotation angle of the wheel. If the measuring instrument is used for measuring the deflection angle of the guide wheel of the tractor, a large error is generated because: the upper end of a guide wheel of the wheeled tractor inclines outwards by an angle called as an outer inclination angle, the front end of the guide wheel is folded inwards by an angle called as a front toe angle, and a steering knuckle vertical shaft is also inclined inwards and backwards by an angle called as an inner inclination angle and a back inclination angle respectively.
Disclosure of Invention
The invention aims to solve the problems existing in the measurement of the deflection angle of the guide wheel of the tractor, and provides a portable device for measuring the deflection angle of the guide wheel, which can autonomously move along with the steering center of the guide wheel, is simple to operate and can accurately measure, and a measuring method of the measuring device.
The invention relates to a portable wheeled tractor guide wheel deflection angle measuring device, which adopts the following technical scheme: the upper cover is positioned above the base, the bottom of the upper surface center of the base is fixedly connected with the bottom end of the angle sensor, the top end of the angle sensor is fixedly connected with the center of the upper cover, the center shaft of the angle sensor is collinear with the center shafts of the base and the upper cover, the upper surface of the upper cover is fixedly provided with a left limiting plate and a right limiting plate which are symmetrically arranged relative to the center of the upper cover, four track wheels which are uniformly arranged along the center of the base are connected below the base, a track is matched below every two track wheels, the track wheels can roll on the track, and the track is laid along the sliding track of the steering center of the tractor guide wheels.
Furthermore, a lower gasket is fixedly embedded on the upper surface of the base, an upper gasket is fixedly embedded on the lower surface of the upper cover, the upper gasket and the lower gasket are identical in structure and are all circular, a circular flat retainer is arranged between the upper gasket and the lower gasket, through holes which are identical in number and correspond to the steel balls and in structure are uniformly formed in the ring surface of the flat retainer in the circumferential direction, a steel ball is placed in each through hole, the upper height and the lower height of the flat retainer are smaller than the outer diameter of the steel ball, grooves which correspond to the steel balls are formed in the lower surface of the upper gasket and the upper surface of the lower gasket, the grooves of the upper gasket and the lower gasket are buckled on the steel balls, and the central shafts of the upper cover, the upper gasket, the lower gasket.
The invention discloses a measuring method of a portable wheeled tractor guide wheel deflection angle measuring device, which adopts the following technical scheme: the guide wheel of the tractor to be measured is stopped at the center of the upper cover, the left limiting plate and the right limiting plate are used for clamping two axial sides of the guide wheel, the tractor steering wheel is rotated, the tractor guide wheel is steered to drive the upper cover to rotate synchronously, the base moves freely along the track along with the track wheel, and the angle sensor measures the rotating angle of the guide wheel.
Further, the speed of the tractor wheels is used as input, the coordinate change of the grounding point of each wheel along with time is found in a coordinate system, a coordinate change equation of each grounding point is listed, a running track diagram of the guide wheel of the tractor is drawn, the motion track of the guide wheel when the tractor turns on site is obtained, and the track is processed according to the motion track.
The technical scheme of the invention has the following advantages:
1. the measuring device drives the upper cover to rotate through the deflection guide wheel, further drives the angle sensor to rotate to output an angle signal, accurately measures the rotation angle of the guide wheel of the wheeled tractor, and receives the signal of the angle sensor to obtain the steering angle of the guide wheel.
2. The invention has self-adaptability to the inclination angles of the front wheel and the vertical shaft of the tractor, and the device can move along with the movement of the rotation center of the guide wheel. The device has small volume and weight and is convenient to carry to a test site.
3. The invention has the advantages of simple operation, small volume, suitability for various tractors and low cost.
4. The invention can monitor and collect the corner signal in real time.
Drawings
The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, which are provided to illustrate the invention but not to limit the scope of the invention.
FIG. 1 is an isometric view of a portable wheeled tractor guide wheel deflection angle measuring device of the present invention;
FIG. 2 is a cross-sectional front view of the structure of FIG. 1;
FIG. 3 is a structural view of the upper cover 2b of FIG. 1;
fig. 4 is an isometric view of the assembled structure of the base 2a and the angle sensor assembly 1 of fig. 2;
FIG. 5 is a top view of the base 2a of FIG. 4;
fig. 6 is a structural view of the left and right stopper plates 4c and 4d of fig. 1;
fig. 7 is an enlarged perspective view of the resistor 3 in fig. 2;
fig. 8 is an enlarged perspective view of the rail wheel 4a in fig. 2;
fig. 9 is a schematic view showing a measurement state of the guide wheel deflection angle measuring apparatus shown in fig. 1.
In the figure: 1. an angle sensor assembly; 1a, an angle sensor; 1a-1. a rotating shaft; 1a-2. flange plate; 1a-3. transmission lines; 1b, a bolt; 2. a support mechanism; 2a, a base; 2a-1. a through hole; 2a-2. a threaded hole; 2a-3 bolt holes; 2b, covering the upper cover; 2b-1. a through hole; 2b-2. a through hole; 3. a resistance eliminating member; 3a, an upper gasket; 3b, a lower gasket; 3c, steel balls; 3d, a planar retainer; 4. a slip compensation component; 4a. a rail wheel; 4a-1. bolt hole; 4a-2, a roller seat; 4a-3, roller shaft; 4a-4. rollers; 4b, a track; 4c, a left limit plate; 4c-1. waist-shaped hole; 4d, a right limiting plate; 4d-1. waist-shaped hole; 4e, bolts; 4f, bolts; A. a guide wheel; B. a deflection angle measuring device.
Detailed Description
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms nest, cartridge, coupling are to be construed broadly, e.g., as being fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; the coupling may be direct or indirect via an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
As shown in fig. 1 and 2, the device for measuring the deflection angle of the guide wheel of the portable wheeled tractor comprises an angle sensor assembly 1, a supporting mechanism 2, a resistance eliminating piece 3 and a slip compensation assembly 4; the supporting mechanism 2 is horizontally arranged, the angle sensor assembly 1 is arranged in the middle of the inside of the supporting mechanism 2, the resistance eliminating piece 3 is nested in the inside of the supporting mechanism 2, and the sliding compensation assemblies 4 are arranged above and below the supporting mechanism 2. The slippage compensation assembly 4 comprises a track wheel 4a, a track 4b, a left limit plate 4c and a right limit plate 4d, the track wheel 4a and the track 4b are installed below the supporting mechanism 2, and the left limit plate 4c and the right limit plate 4d are installed above the supporting mechanism 2.
Referring to fig. 3 and 4, the support mechanism 2 is composed of a base 2a and an upper cover 2b, the upper cover 2b is located right above the base 2a, and the base 2a and the upper cover 2b are both disc-shaped structures and have the same central axis. The edge of upper cover 2b evenly is equipped with decurrent boss, and the boss is tangent with base 2 a's edge downwards, does not retrain each other, makes upper cover 2b and base 2a contact together, plays and prevents upper cover 2b slippage and spacing effect, and leaves certain high clearance between making upper cover 2b lower surface and the base 2a upper surface.
The upper cover 2b is provided with two through holes 2b-1 and 2b-2 which are symmetrical along the center and are respectively connected with a left limit plate 4c and a right limit plate 4d in the slippage compensation component 4.
The bottom end of the angle sensor assembly 1 is fixedly connected to the center of the upper surface of the base 2a. The angle sensor assembly 1 is composed of an angle sensor 1a and a bolt 1b, the angle sensor 1a is used for measuring the rotation angle of the guide wheel, the central shaft of the angle sensor 1a is collinear with the central shafts of the base 2a and the upper cover 2b, and the top end of the angle sensor 1a is fixedly connected to the upper cover 2b, so that the angle sensor 1a is fixedly connected between the base 2a and the upper cover 2b. The angle sensor 1a is provided with a rotating shaft 1a-1, a flange plate 1a-2 and a transmission line 1a-3, when the angle sensor is specifically connected, the upper end of the rotating shaft 1a-1 is inserted into a corresponding blind hole of an upper cover 2b, and the central axis of the rotating shaft 1a-1 is collinear with the central axis of the upper cover 2b. The flange plate 1a-2 coaxially sleeved on the rotating shaft 1a-1 is provided with a threaded hole and is fixedly connected with the base 2a through a bolt 1b.
Referring to fig. 5, the base 2a is provided with a through hole 2a-1, two symmetrical threaded holes 2a-2 and four groups of bolt holes 2a-3. The flange plate 1a-2 of the angle sensor 1a is connected to two symmetrical threaded holes 2a-2 through two bolts 1b, and the angle sensor 1a is fixed on the base 2a. The transmission line 1a-3 of the angle sensor 1a is led out through a through hole 2a-1 on the base 2a and then connected to an external signal receiving device.
Referring to fig. 1, 3 and 6, a left stopper plate 4c and a right stopper plate 4d are fixedly provided on the upper surface of the upper cover 2b, and the left stopper plate 4c and the right stopper plate 4d are symmetrically arranged with respect to the center of the upper cover 2b. The left limiting plate 4c and the right limiting plate 4d are both L-shaped plates, the horizontal plates of the left limiting plate 4c and the right limiting plate 4d are respectively provided with a waist-shaped hole, and the horizontal plates are respectively connected with the upper cover 2b through a bolt. During specific connection, the left limiting plate 4c is provided with a kidney-shaped hole 4c-1 which is fixedly connected with a through hole 2b-1 of the upper cover 2b in the figure 3 through a bolt 4e, the right limiting plate 4d is provided with a kidney-shaped hole 4d-1 which is fixedly connected with a through hole 2b-2 of the upper cover 2b in the figure 3 through a bolt 4f. The slotted holes 4c-1 and the slotted holes 4d-1 are radially arranged in the hole length direction, so that the positions of the left limiting plate 4c and the right limiting plate 4d can be adjusted through the slotted holes 4c-1 and the slotted holes 4d-1 respectively, the guide wheels are clamped between the vertical plates of the left limiting plate 4c and the right limiting plate 4d, and the guide wheels with different sizes can be adapted and fixed by adjusting the distance between the left limiting plate 4c and the right limiting plate 4d.
As shown in fig. 7, the inhibitor 3 is composed of an upper washer 3a, a lower washer 3b, a steel ball 3c, and a flat retainer 3d. The lower gasket 3b is fixedly embedded in the groove on the upper surface of the base 2a, so that the lower gasket 3b is prevented from producing relative movement with the base 2a and is in interference fit with the base 2a. The upper gasket 3a is fixedly embedded in a groove on the lower surface of the upper cover 2b and is also in interference fit with the upper cover 2b and fixed together. The upper washer 3a and the lower washer 3b are both circular rings and have the same structure. A circular plane retainer 3d is arranged between the upper washer 3a and the lower washer 3b, through holes which have the same quantity as the steel balls 3c and are corresponding to the structure are uniformly arranged on the ring surface of the plane retainer 3d along the circumferential direction, and a steel ball 3c is placed in each through hole, so that a plurality of steel balls 3c are uniformly arranged through the plane retainer 3d. The height of the plane retainer 3d is smaller than the outer diameter of the steel ball 3c, so that the steel ball 3c contacts the lower surface of the upper washer 3a and the upper surface of the lower washer 3b. Grooves corresponding to the steel balls 3c are formed in the lower surface of the upper gasket 3a and the upper surface of the lower gasket 3b, and the grooves of the upper gasket 3a and the lower gasket 3b are buckled on the steel balls 3c, so that the steel balls 3c extend into the grooves and can roll in the grooves. The steel balls 3c have the functions of reducing friction resistance and bearing, the steel balls 3c are uniformly separated from each other by the plane retainer 3d, so that each steel ball 3c normally rolls between the upper washer 3a and the lower washer 3b, the functions of retaining and guiding are achieved, and the rotation resistance between the base 2a and the upper cover 2b can be reduced.
The central axes of the upper cover 2b, the base 2a, the upper gasket 3a, the lower gasket 3b, and the flat holder 3d are collinear. The angle sensor 1a passes through the middle through holes of the upper washer 3a, the lower washer 3b and the plane retainer 3d, and the outer diameter of the angle sensor 1a is far smaller than the inner diameters of the upper washer 3a, the lower washer 3b and the plane retainer 3d, so that interference does not occur.
As shown in fig. 1 and 8, four rail wheels 4a are installed below the base 2a, the four rail wheels 4a are uniformly arranged along the center of the base 2a, and each rail wheel 4a is connected through a set of bolt holes 2a-3 provided on the base 2a. A track 4b is matched below each two track wheels 4a, the track 4b is an I-shaped track, and the track wheels 4a can roll on the track 4b. Because the guide wheel can generate a slippage phenomenon when the tractor steers in situ, and the steering center track of the guide wheel is a regular curve, the track 4b is laid along the slippage track, and the track wheel 4a is adapted to the constantly changing rotation center of the guide wheel when moving along the track 4b. Each rail wheel 4a is composed of a roller 4a-4, a roller shaft 4a-3 and a roller seat 4a-2, and each roller seat 4a-2 is provided with a group of bolt holes 4a-1, and the bolt holes 4a-1 correspond to the positions of the group of bolt holes 2a-3 on the base 2a for fixing the rail wheel 4a and the base 2a. The two ends of the roller shaft 4a-3 are connected to the roller seat 4a-2, the roller 4a-4 is sleeved on the middle of the roller shaft, and the roller 4a-4 is placed on the rail 4b to roll along the rail 4b. The rail wheel 4a is a unilateral rail wheel, and is simple and convenient to mount and dismount.
With reference to fig. 9, when the deflection angle measuring device B of the present invention works, a track 4B is laid in advance, which is a motion track of the guide wheel a when the tractor turns in place, the steering track of the tractor guide wheel a is studied by using a functional relationship of a change of a wheel coordinate with time, a coordinate change of a ground point of each wheel with time is found in a coordinate system by establishing a suitable coordinate system and using a speed of the wheel as an input factor, a coordinate change equation of each ground point is listed, and finally a running track diagram of the tractor guide wheel a is drawn by using MATLAB software, so that the motion track of the guide wheel a when the tractor turns in place is a regular curve, and the tractor is verified by a real vehicle test. A track 4B is processed according to the curve law, namely the motion track, and a track wheel 4a, a base 2a and the like are placed on the track 4B together, so that the deflection angle measuring device B can move autonomously along with the rotation of the guide wheel A, and the measuring accuracy is ensured.
The driver stops the tractor leading wheel A that awaits measuring and puts in the central point of upper cover 2b and puts, adjusts the fixed position of left limiting plate 4c and right limiting plate 4d, presss from both sides the axial both sides of leading wheel A tightly with left limiting plate 4c and right limiting plate 4d respectively, eliminates the error that leading wheel A skids the production. Then the driver rotates the steering wheel, the tractor leading wheel A drives the upper cover 2b to rotate synchronously when turning, the rotating shaft 1a-1 of the angle sensor 1a fixedly connected to the center of the upper cover 2b rotates the same angle along with the rotating shaft, and then the rotating shaft 1a-1 of the angle sensor 1a is converted into the rotating motion, thereby measuring the rotating angle of the leading wheel, and transmitting the rotating angle value signal to the signal receiving device through the transmission line 1a-3. Meanwhile, the base 2a freely moves along the track 4B along with the track wheel 4a, namely moves along the sliding track of the guide wheel A, so that the guide wheel deflection angle measuring device B automatically adapts to the rotating center of the guide wheel A which changes continuously, and the measuring accuracy of the rotating angle of the guide wheel A of the tractor is ensured. In the measuring process, because the rotation resistance of the resistance eliminating piece 3 is small, the error of the actual rotation angle of the guide wheel A is small.
Steering angle scale lines can be added on the periphery of the base 2a to assist in measuring the rotation angle of the guide wheel A.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The utility model provides a portable wheeled tractor leading wheel deflection angle measuring device, includes base (2 a), upper cover (2 b) and angle sensor (1 a), and upper cover (2 b) are located base top (2 a), characterized by: the bottom of the upper surface dead center fixed connection angle sensor (1 a) of base (2 a), the top fixed connection upper cover (2 b) dead center of angle sensor (1 a), the center pin of angle sensor (1 a) and the center pin collineation of base (2 a) and upper cover (2 b), the fixed setting of upper surface of upper cover (2 b) is for the central symmetry's of upper cover (2 b) left limiting plate (4 c) and right limiting plate (4 d), four rail wheel (4 a) along base (2 a) center evenly arranged are connected to the below of base (2 a), a track (4 b) is rotated in the below cooperation of per two rail wheel (4 a), rail wheel (4 a) can roll on track (4 b), track (4 b) are laid along the tractor direction to the orbit of sliding at center.
2. The portable wheeled tractor guide wheel deflection angle measuring device according to claim 1, wherein: the upper surface of the base (2 a) is fixedly embedded with a lower gasket (3 b), the lower surface of the upper cover (2 b) is fixedly embedded with an upper gasket (3 a), the upper gasket (3 a) and the lower gasket (3 b) have the same structure and are all circular, a circular flat retainer (3 d) is arranged between the upper gasket (3 a) and the lower gasket (3 b), through holes which are the same as the steel balls (3 c) in number and correspond to the structure are uniformly formed in the circular surface of the flat retainer (3 d) along the circumferential direction, a steel ball (3 c) is arranged in each through hole, the upper height and the lower height of the flat retainer (3 d) are smaller than the outer diameter of the steel ball (3 c), grooves corresponding to the steel balls (3 c) are formed in the lower surface of the upper gasket (3 a) and the upper surface of the lower gasket (3 b), the grooves of the upper gasket (3 a) and the lower gasket (3 b) are buckled on the steel balls (3 c), and the upper cover, The central axes of the upper washer (3 a), the lower washer (3 b) and the plane retainer (3 d) are collinear.
3. The portable wheeled tractor guide wheel deflection angle measuring device according to claim 1, wherein: the base (2 a) and the upper cover (2 b) are both disc-shaped and have the same central axis, downward bosses are uniformly arranged at the edge of the upper cover (2 b), and the bosses are downward tangent to the edge of the base (2 a) and are not constrained with each other.
4. The portable wheeled tractor guide wheel deflection angle measuring device according to claim 1, wherein:
the angle sensor (1 a) is provided with a rotating shaft (1 a-1), flange plates (1 a-2) and transmission lines (1 a-3), the upper end of the rotating shaft (1 a-1) is inserted into a corresponding blind hole of an upper cover (2 b), the central shaft of the rotating shaft (1 a-1) is collinear with the central shaft of the upper cover (2 b), and the flange plates (1 a-2) coaxially sleeved on the rotating shaft (1 a-1) are fixedly connected with a base (2 a) through bolts (1 b).
5. The portable wheeled tractor guide wheel deflection angle measuring device according to claim 1, wherein:
the left limiting plate (4 c) and the right limiting plate are both L-shaped plates, the horizontal plates of the left limiting plate (4 c) and the right limiting plate (4 d) are respectively provided with a waist-shaped hole, and the horizontal plates are respectively connected with the upper cover (2 b) through bolts so that the distance between the left limiting plate (4 c) and the right limiting plate (4 d) can be adjusted.
6. A method for measuring a deflection angle of a steerable wheel of a portable wheeled tractor as defined in claim 1, comprising: the tractor guide wheel to be measured is stopped at the central position of the upper cover (2 b), the axial two sides of the guide wheel are clamped by a left limiting plate (4 c) and a right limiting plate (4 d), the tractor steering wheel is rotated to drive the upper cover (2 b) to synchronously rotate, the base (2 a) freely moves along the track (4 b) along with the track wheel (4 a), and the angle sensor (1 a) measures the rotation angle of the guide wheel.
7. The measurement method according to claim 6, wherein: the speed of wheels of the tractor is used as input, the coordinate change of the grounding point of each wheel along with time is found in a coordinate system, a coordinate change equation of each grounding point is listed, a running track diagram of a guide wheel of the tractor is drawn, the motion track of the guide wheel when the tractor steers in place is obtained, and a track (4 b) is processed according to the motion track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979949.6A CN112284772A (en) | 2020-09-17 | 2020-09-17 | Portable wheel type tractor guide wheel deflection angle measuring method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979949.6A CN112284772A (en) | 2020-09-17 | 2020-09-17 | Portable wheel type tractor guide wheel deflection angle measuring method and device |
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| Publication Number | Publication Date |
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| CN112284772A true CN112284772A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010979949.6A Pending CN112284772A (en) | 2020-09-17 | 2020-09-17 | Portable wheel type tractor guide wheel deflection angle measuring method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251985A (en) * | 2021-07-02 | 2021-08-13 | 江苏龙共真空技术有限公司 | Electronic measuring instrument for camber angle of wheel and using method |
| CN114812617A (en) * | 2022-07-01 | 2022-07-29 | 深圳市沃感科技有限公司 | Intelligent inclination angle calibration device and calibration method thereof |
-
2020
- 2020-09-17 CN CN202010979949.6A patent/CN112284772A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251985A (en) * | 2021-07-02 | 2021-08-13 | 江苏龙共真空技术有限公司 | Electronic measuring instrument for camber angle of wheel and using method |
| CN113251985B (en) * | 2021-07-02 | 2021-10-01 | 江苏龙共真空技术有限公司 | Electronic measuring instrument for camber angle of wheel and using method |
| CN114812617A (en) * | 2022-07-01 | 2022-07-29 | 深圳市沃感科技有限公司 | Intelligent inclination angle calibration device and calibration method thereof |
| CN114812617B (en) * | 2022-07-01 | 2022-10-04 | 深圳市沃感科技有限公司 | Intelligent inclination angle calibration device and calibration method thereof |
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