CN203598450U - Tennis trainer - Google Patents
Tennis trainer Download PDFInfo
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- CN203598450U CN203598450U CN201320740196.9U CN201320740196U CN203598450U CN 203598450 U CN203598450 U CN 203598450U CN 201320740196 U CN201320740196 U CN 201320740196U CN 203598450 U CN203598450 U CN 203598450U
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Abstract
The utility model relates to a tennis trainer. According to the tennis trainer, a ball picking device, a steering system, a ball hitting system and a ball collecting system are mutually matched; the steering system comprises an irregular cam rotating shaft, the ball hitting system comprises an incomplete gear, and the ball collecting system comprises a ball carrying device; the irregular cam rotating shaft is connected with a spindle of a motor, the incomplete gear is connected with the spindle of the motor through a belt, and the ball carrying device is connected with the spindle of the motor. The tennis trainer is simple in structure, a serving cylinder can irregularly and randomly rotate, the frequency and the velocity of a tennis ball are guaranteed when the tennis ball is thrown out, tennis balls on the ground can be automatically collected when the tennis trainer is pushed, and the tennis trainer is high in training simulation and better in training effect.
Description
Technical field
The utility model relates to a kind of tennis training machine, and 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 in the time of training, generally need at least one training mate, often owing to lacking ladder player, or the technology such as the rotation of service dynamics, angle, far and near distance and the ball of training mate is not stable in performance, and causes training effect not good enough.In order to solve this two hang-up, design 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 purpose of this utility model is to provide a kind of tennis training machine, this device can be realized dishing out and ask the randomness of angle to change, 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 wheel shaft that the described ball system of picking up also comprises wheel, is 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.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 of this tennis training machine, comprises the following steps:
1) batting: when training, open switch motor main shaft and rotate, drive partial gear to rotate by belt, in the time 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.When turning over again after 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 rotation, slide block drives the irregular swing of launching tube by space spherical pair and connecting rod, thereby is dished out by irregular 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 device 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.When the dial rotation at middle part, the spoon shape table tennis holding device at its edge can have been ladled out ball in the time arriving bottom, and in the time 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. adopt the fetcher of three pages of shapes, without other external force, when thrust unit, just can automatically the tennis on ground be collected, use 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 court and the tennis training machine 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 wheel shaft 6 that the described ball system 1 of picking up also comprises wheel 5, is 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, are connected by space sphere hinge 18.
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 that described bucket-shaped ball-collecting device 25 exports 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 engages with tooth bar, and the modulus of tooth is m=10mm, and reference diameter is d=300mm, and 6 teeth are set on one side.It is more suitable that when training, every 3s impacts a ball, is T=3S so set the cycle of batting system, 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:
Vacillating now to the left, now to the right when tennis can be by when net to maximum angle, and other place also can be successful;
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 so calculate;
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 (4)
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, the wheel shaft (6) that the described ball system of picking up (1) also comprises wheel (5), is 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, 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), is connected by space sphere hinge (18), described batting system (3) provides power by battery, described partial gear (19) is by having toothed portion and without toothed portion, described have a toothed portion and symmetrical on circumference without toothed portion, 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), passage (14-2) is provided with spur rack (23) below, impact head (21) is connected with the spur rack (23) that stretches out passage (14-2) bottom.
2. tennis training machine according to claim 1, is characterized in that, the tooth on spur rack (23) is meshed with the tooth on partial gear (19).
3. tennis training machine according to claim 1, is characterized in that, rubber tubing (16) is resilient elastomeric material with impact head (21).
4. 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740196.9U CN203598450U (en) | 2013-11-22 | 2013-11-22 | Tennis trainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740196.9U CN203598450U (en) | 2013-11-22 | 2013-11-22 | Tennis trainer |
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| Publication Number | Publication Date |
|---|---|
| CN203598450U true CN203598450U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320740196.9U Expired - Fee Related CN203598450U (en) | 2013-11-22 | 2013-11-22 | Tennis trainer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833496A (en) * | 2016-04-08 | 2016-08-10 | 栾春梅 | Ball receiving and transmitting device for basketball full-course running training |
| CN108786068A (en) * | 2018-06-13 | 2018-11-13 | 阿坝师范学院 | A kind of automatic teeing apparatus of shuttlecock |
| CN110917602A (en) * | 2019-12-28 | 2020-03-27 | 缙云皮新电子科技有限公司 | Ball dispenser based on voice control |
-
2013
- 2013-11-22 CN CN201320740196.9U patent/CN203598450U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833496A (en) * | 2016-04-08 | 2016-08-10 | 栾春梅 | Ball receiving and transmitting device for basketball full-course running training |
| CN105833496B (en) * | 2016-04-08 | 2018-12-14 | 杭州富阳锦丰纸业有限公司 | A kind of transmitting-receiving ball device running basket training for the basketball whole audience |
| CN108786068A (en) * | 2018-06-13 | 2018-11-13 | 阿坝师范学院 | A kind of automatic teeing apparatus of shuttlecock |
| CN108786068B (en) * | 2018-06-13 | 2019-11-26 | 阿坝师范学院 | A kind of automatic teeing apparatus of shuttlecock |
| CN110917602A (en) * | 2019-12-28 | 2020-03-27 | 缙云皮新电子科技有限公司 | Ball dispenser based on voice control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |