Disclosure of Invention
The application aims to solve the technical problems that: the application provides a mechanical calibrating device of a four-wheel aligner, which can calibrate the caster angle and the caster angle of a kingpin measured by the four-wheel aligner.
The application solves the technical problems as follows: the mechanical calibrating device of the four-wheel aligner comprises a detection bottom plate, wherein a first supporting frame is arranged on the detection bottom plate, a first divider is arranged on the first supporting frame, a first output shaft is arranged on the front side of the first divider, a rotating bracket is connected to the first output shaft, a pointer pointing to the right side is connected to the right side of the rotating bracket, an arc dial component is arranged on the rear side of the pointer, the left end of the arc dial component is fixedly arranged on the front side wall of the first divider, and the right end of the arc dial component is connected with a scale support arranged on the detection bottom plate; the rotary support is provided with a locking device, the upper end of the rotary support is provided with a supporting plate, the supporting plate is provided with a second divider, the upper end of the second divider is provided with a second output shaft, a rotating block is connected to the second output shaft, the outer side of the rotating block is connected with a horizontal rod, and the overhead end of the horizontal rod is connected with a sensor fixing frame.
As a further improvement of the technical scheme, the detection bottom plate is further provided with a second support frame, the second support frame is arranged on the left side of the first support frame, a third divider is arranged on the second support frame, the front side of the third divider is provided with a third input shaft, the right side of the third divider is provided with a third output shaft, the left side of the first divider is provided with a first input shaft, and the third output shaft is connected with the first input shaft through a coupling.
As a further improvement of the technical scheme, the right side of the second divider is provided with a second input shaft, the second input shaft is provided with a second rotary handle, the third input shaft is provided with a third rotary handle, and circumferential scales are arranged on the second rotary handle and the third rotary handle.
As a further improvement of the technical scheme, the right side wall of the second divider and the front side wall of the third divider are provided with scale marks.
As a further improvement of the above technical solution, the pointer points horizontally, and a scale mark on the front side wall of the third divider is set at the 0 scale of the third rotating handle; the horizontal rod rotates to the right-left direction, and a scale mark on the right side wall of the second divider is arranged at the 0 scale of the second rotating handle.
As a further improvement of the technical scheme, the locking device comprises a bolt and bolt holes, a plurality of circumferentially distributed bolt holes are formed in the rotary support, a plurality of circumferentially distributed positioning holes are formed in the left end of the arc dial assembly, the bolt holes and the positioning holes are distributed on the same circumference, and the bolt holes and the positioning holes are locked through bolts.
As a further improvement of the technical scheme, the overhead end of the horizontal rod is connected with a sensor fixing frame in a shaft mode, and a locking screw is arranged on the sensor fixing frame.
As a further improvement of the technical scheme, the sensor fixing frame is a hub-shaped wheel disc or a V-shaped chuck.
The beneficial effects of the application are as follows: after a sensor of the four-wheel aligner is fixed on a sensor fixing frame, when a horizontal rod rotates to the right left direction, a rotating bracket and a pointer rotate clockwise around a first output shaft to simulate the internal inclination angle of a kingpin, the horizontal rod rotates forwards and backwards by the same angle, and the internal inclination angle of the kingpin measured by the four-wheel aligner is verified by the simulated internal inclination angle of the kingpin; when the horizontal rod rotates to the right front, the rotary support and the pointer rotate clockwise around the first output shaft by simulating the caster angle of the kingpin, the horizontal rod rotates left and right by the same angle, and the caster angle of the kingpin measured by the four-wheel aligner is verified by simulating the caster angle of the kingpin. According to the automobile detection principle, the application adopts a purely mechanical verification mode, has low manufacturing cost, simple operation and small occupied space, is suitable for universities and colleges and laboratories, can be used as a basic tool of a power distribution type verification device, and can also be used as a basic tool of a verification tool frame.
Detailed Description
The conception, specific structure, and technical effects produced by the present application will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present application. It is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present application based on the embodiments of the present application. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features in the application can be interactively combined on the premise of no contradiction and conflict. Finally, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. refer to the directions or positional relationships based on the directions or positional relationships shown in the drawings, only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third," as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 4, this is embodiment a1 of the present application, specifically:
the mechanical calibrating device of the four-wheel aligner comprises a detection bottom plate 1, wherein the detection bottom plate is made of a flat rectangular metal plate, a first support frame 2 is arranged on the detection bottom plate, a first divider 3 is arranged on the first support frame, a first output shaft is arranged on the front side of the first divider, a rotary support 4 is connected to the first output shaft, a pointer 41 pointing to the right side is connected to the right side of the rotary support, the rotary support and the pointer rotate together around the first output shaft, an arc dial component 5 is arranged on the rear side of the pointer, the left end of the arc dial component is fixedly arranged on the front side wall of the first divider, the right end of the arc dial component is connected with a scale support 51 arranged on the detection bottom plate, and the arc dial component is horizontally arranged, so that the pointer points to a 0 scale of the arc dial component when horizontal; the rotary bracket is provided with a locking device, the locking device comprises a bolt and a bolt hole 43, the rotary bracket is provided with a plurality of circumferentially distributed bolt holes, the left end of the arc dial assembly is provided with a plurality of circumferentially distributed positioning holes, the bolt hole and the positioning holes are distributed on the same circumference, the bolt is in clearance fit with the bolt hole and the positioning holes, the diameters of the bolt hole and the positioning holes are kept consistent as much as possible, and the bolt hole and the positioning holes enable the rotary bracket to be locked in rotation in a bolt mode; the upper end of runing rest is equipped with backup pad 42, is equipped with second separator 6 in the backup pad, and the right side of second separator is equipped with the second input shaft, and the upper end of second separator is equipped with the second output shaft, is connected with the commentaries on classics piece 62 on the second output shaft, and the outside of commentaries on classics piece is connected with horizontal pole 7, and the overhead end of horizontal pole is connected with sensor mount 8.
In order to improve the verification accuracy of the application, the detection bottom plate is also provided with a second support frame 9, the second support frame is erected on the left side of the first support frame, the second support frame is provided with a third divider 10, the front side of the third divider is provided with a third input shaft, the right side of the third divider is provided with a third output shaft, the left side of the first divider is provided with a first input shaft, and the third output shaft is connected with the first input shaft through a coupling 102. The third output shaft is connected with the first input shaft through the coupler, so that the transmission ratio can be effectively reduced, and the purpose of subdivision accuracy is realized. In addition, for convenience of operation of operators, the second input shaft is provided with a second rotary handle 61, the third input shaft is provided with a third rotary handle 101, and circumferential scales are arranged on the second rotary handle and the third rotary handle.
The first divider, the second divider and the third divider mentioned above are all preferably flange dividers, which can change the direction of movement and can convert continuous circular movement into intermittent circular movement.
For the above-mentioned circumferential graduation, there must be an intuitive mark capable of reflecting the angle rotated by the rotary handle, so that the right side wall of the second divider and the front side wall of the third divider are provided with a graduation mark 11, and the graduation mark of the present application is preferably a triangular arrow, but is not limited to other types of graduation marks, and the graduation mark should be provided at the "0" graduation on the rotary handle in the zero verification state of the present application, i.e. when the pointer points horizontally, a graduation mark on the front side wall of the third divider is provided at the "0" graduation of the third rotary handle; when the horizontal rod rotates to the right left direction, a scale mark on the right side wall of the second divider is arranged at the 0 scale of the second rotary handle.
Further as the preferred implementation mode, the overhead end of the horizontal rod is connected with a sensor fixing frame in a shaft mode, a locking screw is arranged on the sensor fixing frame, the locking screw is unscrewed, and the sensor fixing frame can rotate around the horizontal rod. The sensor fixing frame can be a hub-shaped wheel disc or a V-shaped clamping head, the hub-shaped wheel disc is used for fixing the four-wheel aligner sensor with the clamp, and the V-shaped clamping head is used for fixing the four-wheel aligner sensor without the clamp.
The main pin inclination angle verification step of the embodiment a1 is as follows:
1. a detection bottom plate of a mechanical calibrating device of the four-wheel aligner is transversely placed at a left side lens of the 3D four-wheel aligner, the distance between the detection bottom plate and a lens is kept more than two meters, the calibrating device is in a zero point calibrating state, a sensor fixing frame is fixedly provided with a reflecting plate of the 3D four-wheel aligner, and the reflecting plate faces outwards;
2. rotating the third rotating handle to enable the rotating bracket and the pointer to rotate clockwise around the first output shaft by an angle which is an analog king pin internal inclination angle a;
3. rotating the second rotating handle to enable the horizontal rod to rotate forwards and backwards by the same angle, wherein the preferred angle is +/-20 degrees;
4. at the moment, the measured caster angle a ' of the left front wheel on the 3D four-wheel aligner is a ', and the measured caster angle a ' is verified by simulating the caster angle a;
5. referring to the steps 1-4, the detection bottom plate is transversely placed at the right lens of the 3D four-wheel aligner, and the caster angle of the right front wheel measured by the 3D four-wheel aligner can be verified in the same way.
When the four-wheel aligner to be calibrated is a CCD four-wheel aligner, the mechanical calibrating device of the two four-wheel aligner is required to be adopted simultaneously, the detection bottom plates of the mechanical calibrating device of the two four-wheel aligner are transversely placed, the lower ends of the two detection bottom plates are kept on a straight line, the calibrating device is in a zero point calibrating state, the two sensor fixing frames fix the front wheel sensors of the two CCD four-wheel aligner, at the moment, the two front wheel sensors are outwards, and the main pin internal inclination angle measured by the CCD four-wheel aligner can be calibrated by referring to the steps 2-4.
Referring to fig. 5 to 6, which are the verification steps of camber angle and toe of the wheel of embodiment a2 of the present application, the verification steps of the camber angle and toe of the wheel of embodiment a2 are:
1. a detection bottom plate of a mechanical calibrating device of the four-wheel aligner is transversely placed at a left side lens of the 3D four-wheel aligner, the distance between the detection bottom plate and a lens is kept more than two meters, the calibrating device is in a zero point calibrating state, a sensor fixing frame is fixedly provided with a reflecting plate of the 3D four-wheel aligner, and the reflecting plate faces outwards;
2. rotating the third rotating handle to enable the rotating bracket and the pointer to rotate anticlockwise around the first output shaft by an angle, and locking the rotating bracket, wherein the angle is the simulated camber angle b;
3. rotating the second rotating handle to enable the horizontal rod to rotate anticlockwise around the second output shaft by an angle which is the simulated wheel toe-in c;
4. unscrewing the locking screw, rotating the hub-shaped wheel disc anticlockwise around the horizontal rod by an angle, and then correcting the hub-shaped wheel disc;
5. at this time, the camber angle of the left front wheel measured on the 3D four-wheel aligner is b ', the toe-in of the left front wheel measured on the 3D four-wheel aligner is c', the camber angle b 'measured by the simulated wheel camber angle b is verified, and the toe-in c' measured by the simulated wheel toe-in c is verified;
6. referring to the steps 1-5, the detection bottom plate is transversely placed at the right lens of the 3D four-wheel aligner, and the camber angle and the toe-in of the right front wheel measured by the 3D four-wheel aligner can be verified in the same way;
7. referring to steps 1-6, the detection bottom plate is kept at a distance of about 2.6 meters from the verification position of the front wheel, and is transversely placed at the left side or the right side lens of the 3D four-wheel aligner, so that the camber angle and the toe-in of the left rear wheel or the right rear wheel measured by the 3D four-wheel aligner can be verified in the same way.
When the four-wheel aligner to be detected is a CCD four-wheel aligner, mechanical detecting devices of the two four-wheel aligner are needed to be adopted at the same time, detection bottom plates of the mechanical detecting devices of the two four-wheel aligner are transversely placed, the lower ends of the two detection bottom plates are kept on a straight line, the detecting devices are in a zero point detecting state, when two sensor fixing frames fix front wheel sensors of the two CCD four-wheel aligner, the two front wheel sensors are outwards at the moment, and the camber angle and the toe of the front wheels measured by the CCD four-wheel aligner can be detected by referring to the steps 2, 3 and 5; when the two V-shaped chucks fix the rear wheel sensors of the two CCD four-wheel aligner, the two rear wheel sensors are outwards, and the camber angle and the toe-in of the rear wheel measured by the CCD four-wheel aligner can be detected by referring to the steps 2, 3 and 5.
Referring to fig. 7 to 9, this is embodiment a3 of the present application, and in addition to all the technical features of embodiment a1 and embodiment a2, embodiment a3 further includes:
when the mechanical calibrating device of the four-wheel aligner is in a zero calibration state, the second rotating handle is rotated to enable the horizontal rod to rotate 90 degrees anticlockwise around the second output shaft, and the mechanical calibrating device is in a second zero calibration state.
The caster verification procedure for example a3 is:
1. longitudinally placing a detection bottom plate of a mechanical calibrating device of the four-wheel aligner at a left side lens of the 3D four-wheel aligner, wherein the distance between the detection bottom plate and a lens is more than two meters, the calibrating device is in a second zero point calibrating state, and a sensor fixing frame is fixedly provided with a reflector of the 3D four-wheel aligner, so that the reflector faces outwards;
2. rotating the third rotating handle to enable the rotating bracket and the pointer to rotate clockwise around the first output shaft by an angle which is simulated caster angle d;
3. rotating the second rotating handle to enable the horizontal rod to rotate left and right by the same angle, wherein the preferred angle is +/-20 degrees;
4. at the moment, the caster angle of the left front wheel measured on the 3D four-wheel aligner is D ', and the measured caster angle D' is verified by simulating the caster angle D of the caster;
5. referring to the steps 1-4, the detection bottom plate is longitudinally placed at the right lens of the 3D four-wheel aligner, and the caster angle of the right front wheel measured by the 3D four-wheel aligner can be verified in the same way.
When the four-wheel aligner to be calibrated is a CCD four-wheel aligner, mechanical calibrating devices of the two four-wheel aligner are required to be adopted simultaneously, the detection bottom plates of the mechanical calibrating devices of the two four-wheel aligner are longitudinally placed, the lower ends of the two detection bottom plates are kept on a straight line, the calibrating devices are in a second zero point calibrating state, the two sensor fixing frames fix front wheel sensors of the two CCD four-wheel aligner, at the moment, the two front wheel sensors are outwards, and the caster angle of a kingpin measured by the CCD four-wheel aligner can be calibrated by referring to the steps 2-4.
By adopting the structure, the application has the beneficial effects that: according to the automobile detection principle, the application can detect the toe-in, the camber angle, the caster angle and the caster angle of the wheel measured by the 3D four-wheel aligner or the CCD four-wheel aligner, adopts a purely mechanical detection mode, has low manufacturing cost, simple operation and small occupied space, is suitable for universities and colleges and laboratories, can be used as a basic tool of a power distribution type detection device, and can also be used as a basic tool of a detection tool frame.
While the preferred embodiment of the present application has been described in detail, the application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the application, and these modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.