Motor shaft rotation angle sensing structure of ball serving disc

Abstract

The utility model discloses a ball serving plate motor shaft rotation angle sensing structure which comprises a supporting plate, a gear reduction box is fixedly installed on the back face of the supporting plate, an output shaft of a driving motor is fixedly connected to the outer portion of the input end of the gear reduction box, and an output rotating shaft is fixedly connected to the output end of the gear reduction box. An output rotating shaft is fixedly arranged on the base, a coding disc is fixedly arranged at one end of the output rotating shaft, a rotating supporting rod is fixedly arranged at the other end of the output rotating shaft, a plurality of small holes are formed in the outer surface of the coding disc, and photoelectric sensors are fixedly arranged on the two sides of the coding disc. The angle sensing ball serving machine has the using effect of dynamically sensing the angle of the ball serving disc, so that monitoring personnel of the ball serving machine can timely know the specific angle position of the ball serving disc through the rotating angle of the motor rotating shaft, targeted angle training work can be conveniently carried out, and the angle sensing ball serving machine is good in practicability, simple in structure and convenient to assemble integrally.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ball serving machine, concretely is motor shaft rotation angle induction structure of ball serving disc. BACKGROUND

[0002] The tennis ball serving machine is a kind of equipment specially designed to simulate tennis serving, can automatically serve, and can adjust speed, rotation, interval and other parameters as required, to facilitate the repeated practice of player.Its main functions include setting and changing speed, frequency, direction, drop point, etc., and can be operated by remote control, and the drop point can be fixed or arbitrary drop point in the whole field;

[0003] The ball serving disc structure needs to be equipped when the tennis ball serving machine is used, the ball serving disc is driven by motor and connecting rod, so as to drive the ball serving disc to swing left and right reciprocatingly by the action of motor and connecting rod, so that different angle tennis balls can be served, however, the swing angle of the ball serving disc cannot be sensed and detected conveniently when the traditional ball serving disc is used, so that the specific angle position of the ball serving disc cannot be understood in time by the user and monitoring personnel in actual use, there is certain use deficiency, therefore, the utility model provides motor shaft rotation angle induction structure of ball serving disc to sense the angle position of the ball serving disc. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing motor shaft rotation angle induction structure of ball serving disc to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: motor shaft rotation angle induction structure of ball serving disc, including support plate, the back surface fixed mounting of support plate has gear reduction box, the input end outside of gear reduction box is fixedly connected with the output shaft of driving motor, the output end of gear reduction box is fixedly connected with output shaft, and the one end fixed mounting of output shaft has encoder disc, and the other end fixed mounting of output shaft has rotary support rod, the outer surface of encoder disc is equipped with a plurality of small holes, and the both sides of encoder disc are fixedly installed photoelectric sensor.

[0006] Preferably, a plurality of small holes are distributed at equal intervals by the center point of the encoder disc.

[0007] Preferably, the one end of support plate is installed with bearing, and the inside of bearing is installed with ball serving disc by rotating shaft.

[0008] Preferably, the top end outer wall of rotary support rod is rotatably installed with swing connecting rod.

[0009] Preferably, the top end of swing connecting rod is rotatably connected with ball serving disc.

[0010] Preferably, the photoelectric sensor is a slot photoelectric sensor.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a photoelectric sensor and the cooperation of code disc can understand the shaft body rotation angle of drive motor in time, because the swing angle of the ball-throwing disc directly depends on the rotation angle of drive motor, therefore can understand the ball-throwing disc is at what angle position in time through understanding motor shaft rotation angle, has the use effect that the ball-throwing disc angle dynamic response, makes the monitoring personnel of ball-throwing machine can know the specific angle position of ball-throwing disc in time through motor rotating shaft rotation angle, is favorable to carry out the angle training work of target, has good practicality, and the utility model structure is simple, and overall assembly is convenient, and manufacturing and maintenance cost are low, is suitable for promotion and use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is support plate back three -dimensional structure schematic diagram for the embodiment of the utility model;

[0014] Figure 2 It is support plate front three -dimensional structure schematic diagram for the embodiment of the utility model;

[0015] Figure 3 It is A area amplification structure schematic diagram for the embodiment of the utility model Figure 1 .

[0016] In the drawing: 1, support plate;2, gear reduction box;3, drive motor;4, code disc;5, photoelectric sensor;6, rotating support;7, swing connecting rod;8, bearing;9, ball-throwing disc;10, small hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and cannot indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "mounting", "provided with", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0020] Please refer to Figures 1-3 The utility model provides an embodiment: motor shaft rotation angle induction structure of serving disc, including support plate 1, support plate 1 back surface fixed mounting has gear reduction box 2, the input end outside of gear reduction box 2 is fixedly connected with the output shaft of driving motor 3, so as to drive gear reduction box 2 to be driven by driving motor 3 and work transmission;

[0021] The output end of gear reduction box 2 is fixedly connected with the output shaft, one end of the output shaft is fixedly installed with code disc 4, the other end of the output shaft is fixedly installed with rotary support rod 6, the outer surface of code disc 4 is provided with a plurality of small holes 10, and the both sides of code disc 4 are fixedly installed with photoelectric sensor 5;

[0022] Among them, photoelectric sensor 5 is groove type photoelectric sensor, and photoelectric sensor is a mature existing technology product, which is a device for converting optical signal into electrical signal, and its working principle is based on photoelectric effect; Photoelectric sensor is mainly composed of light source, optical path and photoelectric element three parts, first, the change of the measured quantity is converted into the change of the optical signal, and then the optical signal is further converted into the electrical signal by the photoelectric element;

[0023] And in the utility model, when using, photoelectric sensor 5 can sense the position change of small hole 10 on code disc 4.

[0024] Further, as shown in the description Figure 3 A plurality of small holes 10 are distributed at equal intervals through the center point of code disc 4 circle;

[0025] The structure design, through the drive motor 3 can be through the gear reduction box 2 drive output shaft rotation, when the output shaft in rotation, it will drive one end of the encoder disk 4 synchronous rotation, because the encoder disk 4 is provided with a plurality of small holes 10, therefore, in the encoder disk 4 rotation, its small hole 10 can be synchronous rotation, so that the photoelectric sensor 5 can be set on both sides of the encoder disk 4 small hole 10 rotation position sensing, so that the photoelectric sensor 5 can be through the rotating hole 10 sensing drive motor 3 shaft rotation angle, has the actual use effect of motor shaft rotation angle sensing.

[0026] In this embodiment, in order to ensure the normal connecting rod driving effect, one end of the support plate 1 is provided with a bearing 8, the bearing 8 is provided with a serving plate 9 through a rotating shaft, and the top end of the rotating support rod 6 is provided with a swing connecting rod 7.

[0027] The top end of the swing connecting rod 7 is rotatably connected with the serving plate 9.

[0028] The structure design, when the drive motor 3 drives the output shaft to rotate through the gear reduction box 2, the front rotating support rod 6 can rotate synchronously, when the rotating support rod 6 rotates, the swing connecting rod 7 rotatably connected with the top end of the serving plate 9, so that when the drive motor 3 rotates, the serving plate 9 connected with the connecting rod structure can reciprocate left and right.

[0029] Working principle: when the utility model is used, the drive motor 3 can drive the output shaft to rotate through the gear reduction box 2, when the output shaft rotates, the front rotating support rod 6 can rotate synchronously, when the rotating support rod 6 rotates, the swing connecting rod 7 rotatably connected with the top end of the serving plate 9, so that when the drive motor 3 rotates, the serving plate 9 connected with the connecting rod structure can reciprocate left and right, so as to ensure the normal swing use of the serving plate 9 of the utility model;

[0030] When the output shaft rotates, the other end of the encoder disk 4 rotates synchronously, because the encoder disk 4 is provided with a plurality of small holes 10, therefore, in the encoder disk 4 rotation, its small hole 10 can be synchronous rotation, so that the photoelectric sensor 5 can be set on both sides of the encoder disk 4 small hole 10 rotation position sensing, so that the photoelectric sensor 5 can be through the rotating hole 10 sensing drive motor 3 shaft rotation angle, has the actual use effect of motor shaft rotation angle sensing;

[0031] Since the swing angle of the serving disc 9 directly depends on the rotation angle of the driving motor 3, the current angle position of the serving disc 9 can be known by knowing the rotation angle of the motor shaft, the serving disc 9 has the use effect of angle dynamic induction, the monitor of the serving machine can know the specific angle position of the serving disc 9 through the rotation angle of the motor shaft, the targeted angle training work can be carried out, the practicality is good, the utility model has the advantages of simple structure, convenient overall assembly, low manufacturing and maintenance cost, and is suitable for promotion and use.

[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A motor shaft rotation angle sensing structure of a serving disc, comprising a support plate (1), characterized in that, The support plate (1) is fixedly installed with a gear reduction box (2) on the back, the input end of the gear reduction box (2) is fixedly connected with the output shaft of a driving motor (3) outside, the output end of the gear reduction box (2) is fixedly connected with an output rotating shaft, one end of the output rotating shaft is fixedly installed with an encoding disc (4), the other end of the output rotating shaft is fixedly installed with a rotating support rod (6), the outer surface of the encoding disc (4) is provided with a plurality of small holes (10), the two sides of the encoding disc (4) are fixedly installed with photoelectric sensors (5).

2. The motor shaft rotation angle sensing structure of the ball pitching disc according to claim 1, wherein: A plurality of small holes (10) are distributed at equal intervals on the circumference through the center point of the encoding disc (4).

3. The motor shaft rotation angle sensing structure of the ball pitching disc according to claim 1, wherein: One end of the support plate (1) is installed with a bearing (8), the bearing (8) is installed with a ball-throwing disc (9) through a rotating shaft inside.

4. The motor shaft rotation angle sensing structure of the ball pitching disc according to claim 1, wherein: The top end of the rotating support rod (6) is rotatably installed with a swing connecting rod (7) on the outer wall.

5. The motor shaft rotation angle sensing structure of the ball pitching disc according to claim 4, wherein: The top end of the swing connecting rod (7) is rotatably connected with the ball-throwing disc (9).

6. The motor shaft rotation angle sensing structure of the ball pitching disc according to claim 1, wherein: The photoelectric sensor (5) is a groove type photoelectric sensor.

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