Magnet-based tennis ball serving disc angle positioning control structure

Abstract

The utility model discloses a magnet-based tennis ball serving disc angle positioning control structure which comprises a bottom plate, a supporting plate is fixedly installed on the upper surface of the bottom plate, the supporting plate is perpendicular to the bottom plate, a speed reduction rotating assembly is fixedly installed on the back face of the supporting plate, and a magnet is fixedly arranged outside the tail end of an output rotating shaft of the speed reduction rotating assembly in a sleeved mode. A control circuit board is fixedly installed on the outer portion of the back face of the speed reduction rotating assembly through a connecting column, a magnetic coding sensor is fixedly installed on the control circuit board, and the magnetic coding sensor and the magnet are oppositely arranged. The ball serving positioning control structure has the technical effect of accurately positioning and controlling the ball serving angle, effectively improves the comprehensive control practicability of the ball serving machine, and is simple in overall structure, convenient to assemble, low in manufacturing difficulty, convenient and rapid to maintain, low in use cost and suitable for popularization and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to tennis ball serving machine technical field, concretely is a tennis ball serving disc angle positioning control structure based on magnet. BACKGROUND

[0002] The working principle of the tennis ball serving machine is that a series of mechanical transmission mechanisms convey the tennis ball to a launching position, and then a motor drives the serving drum to rotate to launch the tennis ball. This process can be adjusted by a control panel to meet different training needs.

[0003] The serving disc is used when the tennis ball serving machine is used. The serving disc swings back and forth under the action of the connecting rod driving structure, so that tennis balls of different angles can be launched, which facilitates training use. However, the conventional serving disc uses a motor to continuously rotate for reciprocating swing. The driving motor is inconvenient to control when in use, so the angle of the serving cannot be accurately positioned, adjusted and controlled, which causes certain inconvenience in use. Therefore, the utility model provides a tennis ball serving disc angle positioning control structure based on a magnet. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a tennis ball serving disc angle positioning control structure based on a magnet to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tennis ball serving disc angle positioning control structure based on a magnet, comprising a bottom plate, a supporting plate is fixedly installed on the upper surface of the bottom plate, the supporting plate and the bottom plate are perpendicular to each other, a deceleration rotating assembly is fixedly installed on the back surface of the supporting plate, a magnet is fixedly sleeved on the outer end of the output rotating shaft of the deceleration rotating assembly, a control circuit board is fixedly installed on the back surface of the deceleration rotating assembly through a connecting column, a magnetic encoding sensor is fixedly installed on the control circuit board, and the magnetic encoding sensor is arranged opposite to the magnet.

[0006] Preferably, the deceleration rotating assembly comprises a driving motor and a reduction box, the output shaft of the driving motor is fixedly connected with the input end of the reduction box, and the reduction box is a gear reduction box.

[0007] Preferably, the driving motor is electrically connected with the control circuit board.

[0008] Preferably, the output rotating shaft of the reduction box is fixedly installed with a connecting plate at the top end.

[0009] Preferably, the connecting plate is rotatably installed with a driving connecting rod at the top end through a rotating shaft.

[0010] Preferably, the support plate is fixedly installed with a bearing seat on the side away from the deceleration rotating assembly, and a ball-feeding disc is installed in the bearing seat through a rotating shaft.

[0011] Preferably, the ball-feeding disc is rotationally connected with the driving connecting rod.

[0012] Compared with the prior art, the ball-feeding angle control structure has the advantages that:

[0013] The magnetic field change of the magnet can be sensed through the magnetic encoding sensor, and then the sensed magnetic field data is transmitted to the control circuit board, and the driving structure of the deceleration rotating assembly is controlled to operate through the control element of the control circuit board, so that the ball-feeding disc has the function of dynamic positioning control of the ball-feeding angle, the ball-feeding angle can be determined through sensing the magnetic field change, the technical effect of accurate positioning control of the ball-feeding angle is achieved, the comprehensive control practicality of the ball-feeding machine is effectively improved, the ball-feeding positioning control structure is simple in whole, convenient to assemble, low in manufacturing difficulty, convenient and fast in maintenance, low in use cost, and suitable for popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front perspective state schematic view of the ball-feeding angle control structure of the utility model embodiment.

[0015] Figure 2 It is a back perspective structure schematic view of the ball-feeding angle control structure of the utility model embodiment.

[0016] Figure 3 It is an A area enlarged structure schematic view of the utility model embodiment. Figure 2

[0017] In the figure: 1, bottom plate; 2, support plate; 3, deceleration rotating assembly; 301, driving motor; 302, reduction box; 4, control circuit board; 5, magnetic encoding sensor; 6, magnet; 7, connecting plate; 8, driving connecting rod; 9, bearing seat; 10, ball-feeding disc. DETAILED DESCRIPTION

[0018] The technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings of the utility model embodiments. 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 protection scope of the utility model.

[0019] ​In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external" "front end", "rear end", "both 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 not indicate or imply that the device or element indicated must have a particular orientation, construct and operate with a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the terms "mounting", "setting", "connection" and the like should be broadly understood, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, it 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 the specific circumstances.

[0021] Please refer to Figures 1-3 The utility model provides an embodiment based on the angle positioning control structure of tennis serving disc of magnet, including bottom plate 1, the upper surface fixed mounting of bottom plate 1 has support plate 2, support plate 2 and bottom plate 1 are perpendicular to each other, the back surface fixed mounting of support plate 2 has deceleration rotating assembly 3, the output rotating shaft tail end outside of deceleration rotating assembly 3 is fixedly provided with magnet 6, the back surface outside of deceleration rotating assembly 3 is fixedly installed with control circuit board 4 through connecting column, control circuit board 4 is fixedly installed with magnetic encoding sensor 5, magnetic encoding sensor 5 is oppositely arranged with magnet 6, and magnetic encoding sensor 5 is non-contact magnetic encoding sensor;

[0022] Magnetic encoding sensor 5 is a mature existing technology product, which is a kind of non-contact measurement product using the principle of interaction between magnetic field coil and magnet, and the working principle of magnetic encoding sensor 5 is based on the sensing and change of magnetic field, which is usually composed of a fixed magnetic grid and a reading head with magnetic sensitive element, the magnetic grid has a series of magnetic poles, when the object moves, the magnetic head senses the change of magnetic field and converts it into an electrical signal. By measuring the change sensed by the reading head, the position and motion state of the object can be determined;

[0023] The magnetic encoding sensor 5 is used for sensing the magnetic field change of the magnet 6 when the magnet 6 is driven to rotate by the deceleration rotating assembly 3, and then the sensed magnetic field data is transmitted to the control circuit board 4, and the deceleration rotating assembly 3 is controlled to operate through the control circuit board 4, so that the ball-releasing disc ball-releasing angle dynamic positioning control effect is achieved.

[0024] In the embodiment, the deceleration rotating assembly 3 comprises a driving motor 301 and a deceleration box 302, the output shaft of the driving motor 301 is fixedly connected with the input end of the deceleration box 302, and the deceleration box 302 is a gear deceleration box 302.

[0025] That is, the deceleration box 302 is provided with a pinion and a gear, the pinion is in meshing connection with the gear, and the driving motor 301 drives the pinion to rotate, so that the gear is driven to rotate by the pinion to achieve the purpose of deceleration rotation.

[0026] In order to facilitate driving control of the driving motor 301, a single-chip microcomputer is installed on the control circuit board 4, and the driving motor 301 is electrically connected with the single-chip microcomputer of the control circuit board 4, so that the driving motor 301 can be controlled to rotate and operate through the single-chip microcomputer.

[0027] In the embodiment, in order to ensure normal swing ball-releasing effect, the output rotating shaft of the deceleration box 302 is fixedly provided with a connecting plate 7 at the top end, and the top end of the connecting plate 7 is rotatably provided with a driving connecting rod 8 through a rotating shaft.

[0028] Further, the supporting plate 2 is fixedly provided with a bearing seat 9 away from the deceleration rotating assembly 3, the bearing seat 9 is rotatably provided with a ball-releasing disc 10 through a rotating shaft, and the ball-releasing disc 10 is rotatably connected with the driving connecting rod 8.

[0029] Therefore, when the driving motor 301 drives the connecting plate 7 to rotate through the deceleration box 302, the connecting plate 7 can drive the top-end rotatably connected ball-releasing disc 10 to reciprocating swing left and right through the driving connecting rod 8, so that the ball-releasing angle of the ball-releasing machine can be adjusted through the reciprocating swing of the ball-releasing disc 10, and normal use effect is ensured.

[0030] Working principle: when the utility model is used, it can be installed on the matched ball-releasing machine to ensure normal use effect.

[0031] In actual use, the driving motor 301 can work by rotating the speed reduction assembly 3, the driving motor 301 drives the output rotating shaft of the speed reduction box 302 to rotate at a reduced speed, so that the connecting plate 7 can be driven to rotate through the operation of the speed reduction box 302, when the connecting plate 7 rotates, the connecting plate 7 can drive the ball-throwing disc 10 connected at the top end to reciprocate left and right, so that the ball-throwing angle of the ball-throwing machine can be adjusted through the reciprocating movement of the ball-throwing disc 10, and the normal use effect is ensured.

[0032] When the output rotating shaft of the speed reduction box 302 rotates, the magnet 6 at the tail end of the output rotating shaft can rotate synchronously, at this time, the magnetic coding sensor 5 arranged can sense the magnetic field change of the magnet 6 in rotation, then the magnetic field data sensed by the magnetic coding sensor 5 is transmitted to the control single-chip microcomputer of the control circuit board 4, and the driving motor 301 is controlled to operate through the control of the control circuit board 4 and the single-chip microcomputer, so that the ball-throwing angle of the ball-throwing disc 10 can be dynamically controlled based on the magnetic field change of the magnet in rotation, the driving motor 301 is controlled to operate or stop, so that the angle of the ball-throwing disc can be adjusted and positioned, and the technical property of dynamic positioning control of the ball-throwing angle of the ball-throwing disc is achieved, and the comprehensive control effect is effectively improved.

[0033] In summary, the magnetic field change of the magnet can be sensed by the magnetic coding sensor arranged, then the magnetic field data sensed is transmitted to the control circuit board, and the driving structure of the speed reduction rotating assembly is controlled to operate through the control element of the control circuit board, so that the effect of dynamic positioning control of the ball-throwing angle of the ball-throwing disc is achieved, the ball-throwing angle can be determined by sensing the magnetic field change, the technical effect of accurate positioning control of the ball-throwing angle is achieved, the comprehensive control practicality of the ball-throwing machine is effectively improved, the ball-throwing positioning control structure of the utility model is simple in whole, convenient to assemble, low in manufacturing difficulty, convenient and fast in maintenance, low in use cost, and suitable for popularization and use.

[0034] It is apparent for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-restrictive in any aspect, the scope of the utility model is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A magnetic-based tennis ball serving tray angle positioning control structure, comprising a base plate (1), characterized in that, The bottom plate (1) upper surface is fixedly installed with a support plate (2), the support plate (2) is perpendicular to the bottom plate (1), the back of the support plate (2) is fixedly installed with a deceleration rotating assembly (3), the output rotating shaft tail end of the deceleration rotating assembly (3) is externally fixedly sleeved with a magnet (6), the back of the deceleration rotating assembly (3) is externally fixedly installed with a control circuit board (4) through a connecting column, the control circuit board (4) is fixedly installed with a control single-chip microcomputer, the control circuit board (4) is fixedly installed with a magnetic encoding sensor (5), the magnetic encoding sensor (5) is oppositely arranged with the magnet (6).

2. A magnetic-based angle positioning control structure for a tennis ball serving platform according to claim 1, characterized in that: The deceleration rotating assembly (3) comprises a driving motor (301) and a reduction gearbox (302), the output shaft of the driving motor (301) is fixedly connected with the input end of the reduction gearbox (302), and the reduction gearbox (302) is a gear reduction gearbox (302).

3. A magnetic based tennis ball serving platform angle positioning control structure according to claim 2, characterized in that: The driving motor (301) is electrically connected with the single-chip microcomputer of the control circuit board (4).

4. A magnetic (6) based angle positioning control structure for a tennis ball serving platform according to claim 2, characterized in that: The output rotating shaft top end of the reduction gearbox (302) is fixedly installed with a connecting plate (7).

5. A magnetic based angle positioning control structure for a tennis ball serving platform according to claim 4, wherein: The top end of the connecting plate (7) is externally rotatably installed with a driving connecting rod (8) through a rotating shaft.

6. A magnetic based angle positioning control structure for a tennis ball serving platform according to claim 1, wherein: The side, away from the deceleration rotating assembly (3), of the support plate (2) is fixedly installed with a bearing seat (9), and the bearing seat (9) is internally rotatably installed with a ball-feeding disc (10) through a rotating shaft.

7. A magnetic based angle positioning control structure for a tennis ball serving platform according to claim 6, wherein: The ball-feeding disc (10) is rotatably connected with the driving connecting rod (8).

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