Measuring device and laser wheel positioning instrument comprising same

Abstract

The utility model discloses a measuring device and a wheel positioning instrument comprising the same. The measuring device comprises a supporting frame, the supporting frame comprises a body part and an extension part, the motor is borne on the body part of the supporting frame, the laser light source is installed on a rotating shaft of the motor, the power supply module is borne on the extension part of the supporting frame, the power receiving module is arranged at the end of the laser light source, and the power receiving module is electrically connected with the laser light source. The laser light source can rotate along with the rotating shaft, the power supply module can be electrically connected to the direct-current power supply, and the power receiving module and the power supply module are opposite and arranged at a certain interval. According to the measuring device provided by the utility model, power is supplied to the laser light source in a wireless mode so as to generate laser rays, and meanwhile, the laser light source is driven by the motor to rotate so as to form high-speed rotating laser rays. The measuring device is relatively simple in structure and low in material cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel positioning technical field, especially a kind of measuring device and corresponding laser wheel positioning instrument. BACKGROUND

[0002] Laser wheel positioning instrument is a kind of equipment for detecting vehicle wheel positioning parameters, ensuring that these parameters meet the original design requirements, so as to ensure that the vehicle has better driving performance. Wheel positioning parameters often include but are not limited to toe angle, camber angle, kingpin inclination angle, kingpin caster angle, etc.

[0003] Laser wheel positioning instrument mainly includes measuring host, measuring device, wheel clamp, center scale, measuring target and other components. Measuring host communicates with measuring device, measuring device is installed on the center shaft of wheel clamp, wheel clamp is installed on the wheel of the measured vehicle, center scale is vertically suspended on the front and rear ends of the frame of the measured vehicle through a lifting appliance, measuring target is connected with center scale through scale extension rod. Specifically, international application WO9529378A1 discloses the measuring principle of this laser wheel positioning instrument. When detecting vehicle wheel positioning parameters by using the laser wheel positioning instrument, the measuring device needs to provide high-speed rotating laser light. SUMMARY

[0004] The utility model provides a kind of measuring device and the laser wheel positioning instrument containing the measuring device, the measuring device can provide the required high-speed rotating laser light, while structure is relatively simple, and can reduce cost.

[0005] The measuring device provided by the utility model embodiment, comprising: support frame, support frame includes body part and extension part, at least a part of the extension part is below the body part;Motor, carried on the body part of support frame, the rotating shaft of motor extends out of the body part of support frame;Laser light source, installed on the rotating shaft of the motor, can rotate with rotating shaft;Power supply module, carried on the extension part of support frame, configured to be electrically connected to DC power supply;Power receiving module, set to the end of laser light source, opposite to power supply module and set with a certain interval, the power receiving module is electrically connected with laser light source.

[0006] As a further improvement of the utility model, the extension part includes vertical part and horizontal part, the horizontal part is below the body part, and the power supply module is arranged on the horizontal part.

[0007] As a further improvement of the utility model, the power supply module includes power supply coil and power supply module circuit board electrically connected with power supply coil, and the power supply coil is used to emit alternating magnetic field.

[0008] As a further improvement of the utility model, the power supply module further comprises an inverter, and the inverter is used for converting direct current into alternating current.

[0009] As a further improvement of the utility model, the power supply module further comprises a power supply module filter, and the power supply module filter is used for filtering the current input to the power supply module and then inputting the filtered current to the inverter.

[0010] As a further improvement of the utility model, the power supply module further comprises a magnetic conducting plate, and the magnetic conducting plate is arranged between the power supply coil and the power supply module circuit board.

[0011] As a further improvement of the utility model, the power receiving module comprises a power receiving coil and a power receiving module circuit board, the power receiving coil is used for inducting the alternating magnetic field emitted by the power supply module, and the power receiving module circuit board is located between the power receiving coil and the laser light source.

[0012] As a further improvement of the utility model, the power receiving module further comprises a rectifier, and the rectifier is used for converting the inducted alternating current into direct current.

[0013] As a further improvement of the utility model, the power receiving module further comprises a power receiving module filter, and the power receiving module filter is used for filtering the direct current converted by the rectifier and then outputting the filtered direct current.

[0014] On the other hand, the utility model provides a kind of laser wheel alignment gauge, comprising the measuring device described above.

[0015] The measuring device provided by the utility model sets power supply module and power receiving module, power supply module is electrically connected with direct current power supply, power receiving module is electrically connected with laser light source, power supply module and power receiving module are relatively arranged at a certain interval, power supply module includes power supply coil and inverter, power receiving module includes power receiving coil and rectifier, power supply coil emits alternating magnetic field, based on electromagnetic induction principle, power receiving coil inducts alternating magnetic field, generates induced current to power supply to laser light source to generate laser light, and simultaneously, the laser light source is rotated under the drive of motor, to form high-speed rotating laser light.This measuring device provided by the utility model supplies power to laser light source by wireless form, structure is relatively simple, and the cost of material used is lower. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure schematic diagram of the measuring device provided by the utility model embodiment is shown;

[0017] Figure 2 The sectional structure schematic diagram of the measuring device is shown Figure 1

[0018] Figure 3 ​A circuit schematic block diagram is shown, which comprises a power supply module and a power receiving module. DETAILED DESCRIPTION

[0019] The preferred embodiment of the utility model is described in detail below with reference to the drawings.

[0020] The measuring device is an important part of a laser wheel alignment gauge, and when the wheel alignment parameters of a vehicle are detected by using the laser wheel alignment gauge, the measuring device itself needs to provide high-speed rotating laser light so as to calculate the angle of the laser light rotated in a certain time and thus obtain various wheel alignment parameters of the vehicle. One way to provide high-speed rotating laser light is to install a laser light source on the rotating shaft of a motor, and the laser light source emits light while rotating under the driving of the motor, thereby forming high-speed rotating laser light. However, since the laser light source rotates at a speed of up to 4800 revolutions per minute under the driving of the motor, how to supply power to the rotating laser light source is a problem. The embodiment of the utility model provides a measuring device, which can provide the required high-speed rotating laser light, has a relatively simple structure, and can reduce the cost.

[0021] Figure 1 is a structural schematic diagram of the measuring device provided by the embodiment of the utility model, Figure 2 is shown Figure 1 is a sectional structure schematic diagram of the measuring device. As shown in Figure 1 and Figure 2 , the measuring device 10 comprises a support frame 11, a motor 12, a laser light source 13, a power supply module 14, and a power receiving module 15. Of course, the measuring device 10 also comprises other devices such as a laser receiver, an angle sensor, etc., which are not described in detail here. The support frame 11 comprises a body part 112 and an extension part 113, at least a part of the extension part 113 is located below the body part 112; the motor 12 is carried on the body part 112 of the support frame 11, and the rotating shaft of the motor 12 extends out of the body part 112 of the support frame 11; the laser light source 13 is installed on the rotating shaft of the motor 12 and can rotate together with the rotating shaft; the power supply module 14 is carried on the extension part 113 of the support frame 11 and is configured to be electrically connected to a direct-current power supply; the power receiving module 15 is arranged at the end of the laser light source 13, is arranged opposite to the power supply module and at a certain interval, and is electrically connected to the laser light source 13.

[0022] Specifically, the support frame 11 comprises a body portion 112 and an extension portion 113. The body portion 112 is configured to carry various devices (only some of which are shown in the figure) included in the measuring device 10. At least a portion of the extension portion 113 is located below the body portion 112 and is configured to carry the power supply module 14. In some embodiments, the extension portion 113 comprises a vertical portion 1131 and a horizontal portion 1132, which is formed by horizontally bending the vertical portion 1131 to one side, for example. The extension portion 113 is in the shape of an "L" as a whole, with the vertical portion 1131 located at or mounted to one side of the body portion 112 and the horizontal portion 1132 located below the body portion 112. In this way, the power supply module 14 located on the horizontal portion 1132 is opposite to the motor 12, and thus opposite to the laser light source 13 located on the rotating shaft of the motor 12 and the power receiving module 15 located at the end of the laser light source 13. The extension portion 113 is integrally formed with the body portion 112, for example, i.e. the extension portion 113 is formed at the same time as the body portion 112 is manufactured. Of course, in some embodiments, the extension portion 113 can also be separately manufactured and then mounted to the body portion 112 by welding, fasteners or other means.

[0023] The motor 12 is carried by the body portion 112 of the support frame 11 and extends out of the body portion 112. Specifically, the motor 12 is located at a position of the body portion 112 such that when the rotating shaft of the motor 12 extends out of the body portion 112, the rotating shaft is located above the horizontal portion 1132 of the extension portion 113. For example, a receiving cavity 1121 can be provided inside the body portion 112 to receive the motor 12, and the motor 12 is received in the receiving cavity 1121, with at least the rotating shaft of the motor 12 extending out of the receiving cavity 1121. The laser light source 13 is mounted on the rotating shaft of the motor 12. Since the rotating shaft is located above the horizontal portion 1132 of the extension portion 113 and the power supply module 14 is located on the horizontal portion 1132, the laser light source 13 is located above the power supply module 14. Since the power receiving module 15 is located at the end of the laser light source 13, the power receiving module 15 and the power supply module 14 are further arranged in a spaced-apart manner. The laser light source 13 is a diode laser or an excimer laser, for example.

[0024] The power supply module 14 is carried on the horizontal part 1132 of the extension 113, and more specifically, the power supply module 14 is located on the side of the horizontal part 1132 of the extension 113 facing the laser light source 13, and is electrically connected to an external DC power source (for example, a 5V battery). The power supply module 14 includes a power supply coil 141 and a power supply module circuit board 142 electrically connected to the power supply coil 141, and the power supply module circuit board 142 is connected to the external DC power source through a wire, for example, the vertical part 1131 and the horizontal part 1132 of the extension 113 are respectively provided with hollow parts 1130, and the wire 26 leading out from the power supply module circuit board 142 respectively passes through the hollow parts 1130 to be connected to the external DC power source 35, for example, located on the processor mainboard 16. In some embodiments, the power supply module 14 further includes a magnetic conducting plate 144 located between the power supply coil 141 and the power supply module circuit board 142, and the magnetic conducting plate 144 is, for example, a circular metal sheet with a through hole in the middle, used to guide the magnetic field so that the magnetic field is mainly distributed on the side close to the power supply coil 141, to a certain extent, to improve the concentration of the magnetic field distribution.

[0025] In order to form an alternating magnetic field, the power supply module 14 further includes an inverter 143 for converting DC power into AC power, and the converted AC power is input into the power supply coil 141, so that the power supply coil 141 emits the received AC power in the form of an alternating magnetic field. In addition, in order to improve efficiency, the converted AC power can be high-frequency AC power, for example, with a frequency of 500-2000 Hz, and in some embodiments, the power supply module 14 further includes a power supply module filter 148 for filtering the current input into the power supply module 14 and inputting it into the inverter 143, and in some embodiments, the power supply module 14 further includes a fuse 145, so as to ensure that the current value of the power supply module 14 is within a safe range, and to ensure the safety of the circuit. The inverter 143, the power supply module filter 148 and the fuse 145 are located on the power supply module circuit board 142.

[0026] The power receiving module 15 is located at the end of the laser light source 13, opposite to and spaced from the power supply module 14, and is located in the alternating magnetic field formed by the power supply module 14. The power receiving module 15 includes a power receiving coil 151 and a power receiving module circuit board 152 electrically connected to the power receiving coil 151. The power receiving module circuit board 152 is arranged between the power receiving coil 151 and the laser light source 13, and a lead wire is drawn out from the power receiving module circuit board 152 and electrically connected to the laser light source 13 to supply power to the laser light source 13. Since the power receiving coil 151 is located in the alternating magnetic field emitted by the power supply module 14, based on the principle of electromagnetic induction, the power receiving coil 151 induces the alternating magnetic field generated by the power supply coil 141 to generate an induced current to supply power to the laser light source 13. The power receiving module 15 further includes a rectifier 153 electrically connected to the power receiving coil 151 for converting the induced alternating current into direct current. In some embodiments, the power receiving module 15 further includes a power receiving module filter 154 for filtering the direct current converted by the rectifier 153 and outputting to the laser light source 13. The rectifier 153 and the power receiving module filter 154 are located on the power receiving module circuit board 152.

[0027] Figure 3 is a circuit diagram including the power supply module 14 and the power receiving module 15, as Figure 3 shown, an external DC power supply provides a direct current of, for example, 5V to the power supply module circuit board 142, and the 5V direct current enters the inverter 143 after passing through the fuse 145 and the power supply module filter 148. The inverter 143 converts the input direct current into alternating current and flows to the power supply coil 141, and the power supply coil 141 emits the electrical energy in the form of an alternating magnetic field.

[0028] The power receiving coil 151 in the power receiving module 15 is located in the alternating magnetic field generated by the power supply coil 141, and based on the principle of electromagnetic induction, an induced alternating current is generated and output. The alternating current is converted into direct current by the rectification of the rectifier 153 and then filtered by the power receiving module filter 154 and output. That is, the alternating current generated by the power receiving coil 151 based on electromagnetic induction flows to the laser light source 13 after rectification by the rectifier 153 and filtering by the power receiving module filter 154, thereby realizing contactless power supply to the laser light source 13 and solving the problem of difficult power supply to the rotating laser light source 13. The laser light source 13 emits laser light while also rotating under the drive of the motor 12, thereby forming the required high-speed rotating laser light.

[0029] The utility model discloses a measuring device, set power supply module and power receiving module, power supply module and direct current power supply electricity are connected, and power receiving module and laser light source electricity are connected, and power supply module and power receiving module are relatively arranged in a certain interval, and power supply module includes power supply coil and inverter, and power receiving module includes power receiving coil and rectifier, and power supply coil emits alternating magnetic field, and based on electromagnetic induction principle, power receiving coil senses alternating magnetic field, and generates induction current to supply power to laser light source to produce laser light, and simultaneously, the laser light source rotates under the drive of motor, thereby forming high -speed rotating laser light.

[0030] The utility model discloses a measuring device, set power supply module and power receiving module, power supply module and direct current power supply electricity are connected, and power receiving module and laser light source electricity are connected, and power supply module and power receiving module are relatively arranged in a certain interval, and power supply module includes power supply coil and inverter, and power receiving module includes power receiving coil and rectifier, and power supply coil emits alternating magnetic field, and based on electromagnetic induction principle, power receiving coil senses alternating magnetic field, and generates induction current to supply power to laser light source to produce laser light, and simultaneously, the laser light source rotates under the drive of motor, thereby forming high -speed rotating laser light.

[0031] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the above description is only preferred embodiments of the present application, and the present application can be implemented in many other ways different from those described herein, so the present application is not limited to the above disclosed specific implementation. Meanwhile, any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments, without departing from the scope of the technical solutions of the present application, by using the above disclosed methods and technical contents. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the scope of the technical solutions of the present application, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. A measuring device, characterized in that, include: A support frame, the support frame including a body and an extension, at least a portion of the extension being located below the body; The motor is supported on the main body of the support frame, and the rotating shaft of the motor extends out of the main body of the support frame. A laser light source is mounted on the rotating shaft of the motor and can rotate together with the rotating shaft; The power supply module, mounted on the extension of the support frame, is configured to be electrically connected to a DC power source; The power receiving module is located at the end of the laser source, opposite to the power supply module and spaced at a certain distance. The power receiving module is electrically connected to the laser source.

2. The measuring device according to claim 1, characterized in that, The extension includes a vertical portion and a horizontal portion, the horizontal portion being located below the main body, and the power supply module being disposed in the horizontal portion.

3. The measuring device according to claim 1, characterized in that, The power supply module includes a power supply coil and a power supply module circuit board electrically connected to the power supply coil. The power supply coil is used to emit an alternating magnetic field.

4. The measuring device according to claim 1, characterized in that, The power supply module also includes an inverter, which is used to convert direct current to alternating current.

5. The measuring device according to claim 4, characterized in that, The power supply module also includes a power supply module filter, which is used to filter the current input to the power supply module before inputting it to the inverter.

6. The measuring device according to claim 3, characterized in that, The power supply module also includes a magnetic guide plate, which is disposed between the power supply coil and the power supply module circuit board.

7. The measuring device according to claim 1, characterized in that, The power receiving module includes a power receiving coil and a power receiving module circuit board. The power receiving coil is used to sense the alternating magnetic field emitted from the power supply module, and the power receiving module circuit board is located between the power receiving coil and the laser light source.

8. The measuring device according to claim 7, characterized in that, The power receiving module also includes a rectifier, which is used to convert the induced alternating current into direct current.

9. The measuring device according to claim 8, characterized in that, The power receiving module also includes a power receiving module filter, which is used to filter the DC power converted by the rectifier before outputting it.

10. A laser wheel positioning device, characterized in that, Includes the measuring device as described in any one of claims 1-9.

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