CN103585748A - Tennis training machine - Google Patents

Tennis training machine Download PDF

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Publication number
CN103585748A
CN103585748A CN201310591324.2A CN201310591324A CN103585748A CN 103585748 A CN103585748 A CN 103585748A CN 201310591324 A CN201310591324 A CN 201310591324A CN 103585748 A CN103585748 A CN 103585748A
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CN
China
Prior art keywords
tennis
ball
training machine
passage
irregular
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Pending
Application number
CN201310591324.2A
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Chinese (zh)
Inventor
鲁君成
张坦
丁迷
周超
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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Publication date
Application filed by China Three Gorges University CTGU filed Critical China Three Gorges University CTGU
Priority to CN201310591324.2A priority Critical patent/CN103585748A/en
Publication of CN103585748A publication Critical patent/CN103585748A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a tennis training machine and a training method of the tennis training machine. The tennis training machine comprises a ball picking system, a turning system, a ball hitting system and a ball collecting system, wherein the ball picking system, the turning system, the ball hitting system and the ball collecting system are used in cooperation. The turning system comprises an irregular cam rotating shaft, the ball hitting system comprises an incomplete gear, the ball collecting system comprises a ball conveying device, the irregular cam rotating shaft is connected with a main shaft of the motor, the incomplete gear is connected with the main shaft of the motor through a belt, and the ball conveying device is connected with the main shaft of the motor. The tennis training machine is simple in structure, a shoot cylinder can randomly rotate in an irregular mode, the frequency and the speed of throwing tennis balls are ensured, the tennis balls on the ground can be automatically collected when the tennis training machine is pushed, the tennis training machine has high training simulation performance, and the training effect can be better.

Description

A kind of tennis training machine
Technical field
The present invention relates to the training method of a kind of tennis training machine and this training airplane, this device is through picking up cooperatively interacting of ball system, steering, batting system and collection ball system, and the action that completes toss, picks up ball, realizes emulation.
Background technology
Originating from French tennis becomes one of most popular ball game in the whole world now, is deeply subject to liking of outdoor exercises personage.Tennis development is swift and violent, is deeply subject to wide undergraduate welcome, and the Physical Education Departments of a lot of colleges and universities has been offered tennis specialty, and also becomes one of Public Physical Education elective course.Tennis Major and Physical Education Course student are when training, generally need at least one training mate, often owing to lacking ladder player, or the technology such as rotation of service dynamics, angle, far and near distance and the ball of training mate are not stable in performance, and cause training effect not good enough.In order to solve this two hang-up, designed a kind of not only economy but also practical service robot, allow more student and tennis enthusiast can more comfortable, more effectively carry out multi-ball practice.
But in fact,, as an antagonistic motion, in the time of you one-man, perhaps also can only utter unavailing cries of despair, and the imagination of our this tennis training machine produces in order to tackle this situation.
Summary of the invention
The object of the present invention is to provide a kind of tennis training machine, the randomness that this device can be realized the ball angle of dishing out changes, there is higher Simulation Training, promote this device and can realize the collection to place approach shot, the ball collection box that can also automatically deliver to top after collecting is interior for training, is specially:
A kind of tennis training machine, comprise ten ball systems, steering, batting system and collection ball system, steering comprises irregular cam turning cylinder, batting system comprises partial gear, collection ball system comprises dribbling device, described irregular cam turning cylinder is connected with motor main shaft, and partial gear is connected with motor main shaft by belt, and dribbling device is connected with motor main shaft.
The described ball system of picking up also comprises wheel, the wheel shaft being connected with wheel center, wheel shaft is connected with curved surface shape trilobed wheel by connecting rod and the rotating shaft connected with connecting rod, described wheel center is arranged on gradient platform, respectively arranges one and pick up ball system before and after described training airplane.
Described steering also comprises roller tappet, described roller tappet one side is connected with slide block, opposite side is connected with irregular cam, slide block is arranged in passage, the slide block other end is fixed on rubber tubing through spring, rubber tubing top arranges launching tube, and between launching tube and slide block, by space sphere chain connection, described rubber tubing is resilient elastomeric material.
Described batting system provides power by battery, and described partial gear is by having toothed portion and without toothed portion, and described have a toothed portion and symmetrical on circumference without toothed portion.Described batting system also comprises spring assembly, described spring assembly is arranged in passage, and spring one side is connected with impact head movably, and opposite side is connected with fixing baffle plate, below passage, be provided with spur rack, impact head is connected with the spur rack that stretches out passage bottom.Tooth on described spur rack is meshed with the tooth on partial gear, and described impact head is resilient elastomeric material.
Described collection ball system also comprises bucket-shaped ball-collecting device and chassis, the diameter of described bucket-shaped ball-collecting device outlet is greater than tennis diameter 5-8mm, described dribbling device can rotate around the axis, and on dribbling device, be uniformly distributed three spoon shape table tennis holding devices, this spoonful of shape table tennis holding device is fixed on dribbling device by connecting rod.
The training method that another object of the present invention is to provide a kind of tennis training machine, comprises the following steps:
1) batting: during training, open switch motor main shaft and rotate, drive partial gear to rotate by belt, when having the part of tooth to turn to top, be meshed with the spur rack of passage bottom, spring is compressed to the right.Tennis drops in passage from deposit ball case.After turning over again an angle, do not have the part of tooth to forward top to, spring is not received pressure, can recover deformation.Now, impact head high speed impact tennis, is impacted away.Tennis is in passage enters launching tube.
2) turn to: the shell chain connection of the bottom of launching tube and device, right-hand member is connected by resilient rubber tubing, can realize comprehensive swing up and down.The irregular cam of profile drives roller tappet and the irregular motion of slide block while rotating, slide block drives the irregular swing of launching tube by space spherical pair and connecting rod, thereby by irregular, is dished out while realizing tennis through launching tube, realizes good emulation training.
3) pick up ball: when thrust unit moves, wheel rolling, drives wheel shaft to rotate, and by the rotating crank rocking bar after tennis training machine, drives three pages of shape fetchers to rotate, and ground tennis is collected in device chassis.Because the front and back of installing are all mounted with Collector, no matter device advances or retreats to realize is picked up ball.
4) collection ball: the disposable box bottom on device chassis is lower, makes tennis all concentrate on bottom.During the dial rotation at middle part, the spoon shape table tennis holding device at its edge can have been ladled out ball when arriving bottom, and when forwarding top to, ball falls from this structure.Owing to having the special mouth of shape on device top bucket-shaped ball-collecting device, can guarantee that tennis falls in collection ball bucket smoothly.
Adopt above-mentioned tennis training machine and method training method to there is following excellent effect:
1. adopt the irregular cam bawl pusher structure of profile to drive launching tube to rotate, simple in structure, make the irregular random rotation of launching tube energy.
2. use partial gear and tooth bar fit structure, the spring energy-storage that stiffness factor is larger, has guaranteed frequency and speed that tennis is dished out.
3. the fetcher that adopts three pages of shapes, without other external force, just can collect the tennis on ground during thrust unit automatically, uses convenient, and energy-conservation.
4. tennis can be transported to bottom automatically from bottom, uses more simple and convenient.
5. the multi-angle of launching tube changes, and the angle and the height that regulate tennis to dish out, have stronger Simulation Training, makes training effect better.
This product specific aim is very strong, and demand is also larger, and result of use is better.In addition, this product global design is more ingenious, can be in outdoor application, and it is more convenient easy to use, and people's workload is also fewer.And the like product occurring is in the market fewer, so the application prospect of this product is more wide.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of tennis training machine.
Fig. 2 is for picking up ball system architecture schematic diagram.
Fig. 3 is steering structural representation.
Fig. 4 is batting system architecture schematic diagram.
Fig. 5 is collection ball system architecture schematic diagram.
Fig. 6 is bucket-shaped ball-collecting device structural representation.
Fig. 7 is that court and tennis training machine are in the position in court.
The specific embodiment
Embodiment 1
A kind of tennis training machine, comprise ten ball systems 1, steering 2, batting system 3 and collection ball system 4, steering 2 comprises irregular cam turning cylinder 11, batting system comprises partial gear 19, collection ball system comprises dribbling device 24, described irregular cam turning cylinder 11 is connected with motor main shaft, and partial gear 19 is connected with motor main shaft by belt, and dribbling device 24 is connected with motor main shaft.
The described ball system 1 of picking up also comprises wheel 5, the wheel shaft 6 being connected with wheel 5 centers, wheel shaft 6 is connected with curved surface shape trilobed wheel 9 by connecting rod 7 and the rotating shaft 8 connected with connecting rod 7, described wheel 5 centers are arranged on gradient platform 10, respectively arrange one and pick up ball system 1 before and after described training airplane.
Described steering 2 also comprises roller tappet 12, described roller tappet 12 1 sides are connected with slide block 13, opposite side is connected with irregular cam 11, slide block 13 is arranged in passage 14-1, slide block 13 other ends are fixed on rubber tubing 16 through spring 15, rubber tubing 16 tops arrange launching tube 17, between launching tube 17 and slide block 13, by space sphere hinge 18, are connected.
Described batting system 3 provides power by battery, and described partial gear 19 is by having toothed portion and without toothed portion, and described have a toothed portion and symmetrical on circumference without toothed portion.
Described batting system 3 also comprises spring assembly 20, described spring assembly 20 is arranged in passage 14-2, spring assembly 20 1 sides are connected with impact head 21 movably, opposite side is connected with fixing baffle plate 22, below passage 14-2, be provided with spur rack 23, impact head 21 is connected with the spur rack 23 that stretches out passage 14-2 bottom.
Tooth on shown spur rack 23 is meshed with the tooth on partial gear 19.
Shown rubber tubing 16 is resilient elastomeric material with impact head 21.
Described collection ball system 4 also comprises bucket-shaped ball-collecting device 25 and chassis 26, the diameter of described bucket-shaped ball-collecting device 25 outlets is greater than tennis diameter 5-8mm, described dribbling device 24 can rotate around the axis, and on dribbling device 24, be uniformly distributed three spoon shape table tennis holding devices 27, this spoonful of shape table tennis holding device 27 is fixed on dribbling device 24 by connecting rod 28.
The high 1070mm in tennis net two ends using in reality, central high 914mm.For easy to use and can guarantee result of use, the overall dimensions of setting device is 600*550*1000mm.Tennis diameter 65mm, in order to guarantee tennis motion smoothly in passage, still set passage diameter be 70mm.
Partial gear and tooth bar engagement, the modulus of tooth is m=10mm, reference diameter is d=300mm, Yi Bian 6 teeth are set.It is more suitable that during training, every 3s impacts a ball, so set the cycle of batting system, is T=3S, and motor main shaft is identical with the frequency of batting, and setting motor speed is n=20r/min.
The calculating of motion analysis and the elastic coefficient:
Tennis is by net desired data
The weight of tennis is about 0.06kg, and standard outdoor Tennis Court ground size: 22.77m(is long) * 8.23m(is wide), in tennis net in the heart along being 0.914m apart from ground.Tennis is by the about 1.25m of height arriving after dishing out.
Serving position and ball speed are determined
Horizontal direction: L=Vx*t;
Vertical direction: H=1.25-0.5*g*t^2;
H=0 is t=0.505s;
Ball is fallen the time of net height
H=0.914 is t=0.262s.
This tennis training airplane is provided with left-and-right swaying mechanism, so should be positioned at court midline when mechanism serves a ball, as shown in Figure 7, wherein A is court, and B is tennis training machine.
(1) tennis training machine arrives the distance of net:
General tennis ball speed is 20 ~ 25m/s, and getting now serve speed is 20m/s;
Tennis is smoothly by net and do not exceed the condition of tennis court scope:
When tennis, vacillating now to the left, now to the right can be by when net to maximum angle, and other place also can be successful;
So calculate, vacillate now to the left, now to the right to just net and cross and do not exceed the data of tennis court scope of maximum angle when tennis;
L=1/1.93*0.505*20=5.23;
So determine that service robot is 5.23m to the distance of net.
(2) calculate biggest ball speed:
V=?(L+22.77/2)?/?0.505=32.2m/s。
The calculating of coefficient of elasticity
Known tennis quality m=0.06kg, the speed while being hit is v=32.2m/s, the kinetic energy that minimum needs provide is E=1/2*m*v^2=31.1J.
When partial gear turns over 6 teeth, the compressed length of spring is about l=6/30*3.14*d=188.2mm, and establishing coefficient of elasticity is k, has 1/2*k*l^2=E=31.1J, calculates to such an extent that be about k=1760N/M.

Claims (10)

1. a tennis training machine, comprise ten ball systems (1), steering (2), batting system (3) and collection ball system (4), it is characterized in that, steering (2) comprises irregular cam turning cylinder (11), batting system comprises partial gear (19), collection ball system comprises dribbling device (24), described irregular cam turning cylinder (11) is connected with motor main shaft, partial gear (19) is connected with motor main shaft by belt, and dribbling device (24) is connected with motor main shaft.
2. tennis training machine according to claim 1, it is characterized in that, the described ball system of picking up (1) also comprises wheel (5), the wheel shaft (6) being connected with wheel (5) center, wheel shaft (6) is connected with curved surface shape trilobed wheel (9) by connecting rod (7) and the rotating shaft (8) connected with connecting rod (7), it is upper that described wheel (5) center is arranged on gradient platform (10), respectively arranges one and pick up ball system (1) before and after described training airplane.
3. tennis training machine according to claim 1, it is characterized in that, described steering (2) also comprises roller tappet (12), described roller tappet (12) one sides are connected with slide block (13), opposite side is connected with irregular cam (11), slide block (13) is arranged in passage (14-1), slide block (13) other end is fixed on rubber tubing (16) through spring (15), rubber tubing (16) top arranges launching tube (17), between launching tube (17) and slide block (13), by space sphere hinge (18), is connected.
4. tennis training machine according to claim 1, it is characterized in that, described batting system (3) provides power by battery, and described partial gear (19) is by having toothed portion and without toothed portion, and described have a toothed portion and symmetrical on circumference without toothed portion.
5. tennis training machine according to claim 1, it is characterized in that, described batting system (3) also comprises spring assembly (20), it is inner that described spring assembly (20) is arranged on passage (14-2), spring assembly (20) one sides are connected with impact head (21) movably, opposite side is connected with fixing baffle plate (22), and passage (14-2) is provided with spur rack (23) below, and impact head (21) is connected with the spur rack (23) that stretches out passage (14-2) bottom.
6. tennis training machine according to claim 5, is characterized in that, the tooth on spur rack (23) is meshed with the tooth on partial gear (19).
7. according to the tennis training machine described in claim 3 or 5, it is characterized in that, rubber tubing (16) is resilient elastomeric material with impact head (21).
8. tennis training machine according to claim 1, it is characterized in that, described collection ball system (4) also comprises bucket-shaped ball-collecting device (25) and chassis (26), the diameter of described bucket-shaped ball-collecting device (25) outlet is greater than tennis diameter 5-8mm, described dribbling device (24) can rotate around the axis, and on dribbling device (24), be uniformly distributed three spoon shape table tennis holding devices (27), this spoonful of shape table tennis holding device (27) is fixed on dribbling device (24) by connecting rod (28).
9. a training method for tennis training machine, comprises the following steps:
1) open switch, motor main shaft rotates, and by belt, drives partial gear to rotate, when there being the part of tooth to turn to the spur rack of passage bottom, be meshed, spring is compressed to the right, and tennis drops in passage from deposit ball case, after turning over again an angle, do not have the part of tooth to forward top to, spring is not stressed, and recovers deformation, impact head high speed impact tennis, and it impacts away by ball, tennis is in passage enters launching tube;
2) when motor main shaft rotation drives irregular cam to rotate, drive the irregular motion of roller tappet and slide block, slide block drives the irregular swing of launching tube by space sphere hinge connecting rod simultaneously, during tennis process launching tube, by irregular, is dished out;
3) when thrust unit moves, wheel rolling, drives wheel shaft to rotate, and by crank-rocker structure, drives three pages of shape fetchers to rotate, and ground tennis is collected in the disposable box of bottom of device, and described training airplane advances or retreats to realize and picks up ball;
4) in the time of in tennis is collected training airplane chassis, during the dial rotation of dribbling device, when the spoon shape table tennis holding device at its edge arrives bottom, ball can have been ladled out, when forwarding top to, ball falls from spoon shape table tennis holding device, and delivers in bucket-shaped ball-collecting device.
10. the training method of tennis training machine according to claim 1, is characterized in that, motor speed is 20-30r/min.
CN201310591324.2A 2013-11-22 2013-11-22 Tennis training machine Pending CN103585748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106362371A (en) * 2016-11-11 2017-02-01 湖北科技学院 Semi-automatic tennis ball picking up and serving vehicle
CN106422224A (en) * 2016-11-11 2017-02-22 湖北科技学院 Ball serving device of semi-automatic tennis ball picking and serving vehicle
CN107115655A (en) * 2017-03-29 2017-09-01 蒋丽红 A kind of basketball catapult-launching gear
CN108404391A (en) * 2018-04-03 2018-08-17 湖南文理学院 A kind of athletic training vollyball catapult-launching gear
CN108525267A (en) * 2018-05-25 2018-09-14 曾三明 A kind of sport fixed point shootaround teeing apparatus
CN108607210A (en) * 2018-05-22 2018-10-02 郑州轻工业学院 A kind of improved intelligent tennis ball training system
CN111388984A (en) * 2020-03-10 2020-07-10 汪宗顶 Automatic tennis ball launching device
CN111388982A (en) * 2020-03-30 2020-07-10 张洪凯 Tennis serving device for physical training
CN112402933A (en) * 2020-11-20 2021-02-26 安徽信息工程学院 All-round ball transmission training platform
CN113457099A (en) * 2021-07-09 2021-10-01 吉林建筑科技学院 Football shooting trainer

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106362371B (en) * 2016-11-11 2018-11-02 湖北科技学院 A kind of semi-automatic tennis picks up ball and service vehicle
CN106422224A (en) * 2016-11-11 2017-02-22 湖北科技学院 Ball serving device of semi-automatic tennis ball picking and serving vehicle
CN106362371A (en) * 2016-11-11 2017-02-01 湖北科技学院 Semi-automatic tennis ball picking up and serving vehicle
CN106422224B (en) * 2016-11-11 2018-11-09 湖北科技学院 A kind of semi-automatic tennis picks up the ball serving device of ball and vehicle of serving a ball
CN107115655A (en) * 2017-03-29 2017-09-01 蒋丽红 A kind of basketball catapult-launching gear
CN108404391A (en) * 2018-04-03 2018-08-17 湖南文理学院 A kind of athletic training vollyball catapult-launching gear
CN108607210A (en) * 2018-05-22 2018-10-02 郑州轻工业学院 A kind of improved intelligent tennis ball training system
CN108525267A (en) * 2018-05-25 2018-09-14 曾三明 A kind of sport fixed point shootaround teeing apparatus
CN111388984A (en) * 2020-03-10 2020-07-10 汪宗顶 Automatic tennis ball launching device
CN111388984B (en) * 2020-03-10 2021-05-11 汪宗顶 Automatic tennis ball launching device
CN111388982A (en) * 2020-03-30 2020-07-10 张洪凯 Tennis serving device for physical training
CN112402933A (en) * 2020-11-20 2021-02-26 安徽信息工程学院 All-round ball transmission training platform
CN113457099A (en) * 2021-07-09 2021-10-01 吉林建筑科技学院 Football shooting trainer

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Application publication date: 20140219