CN2375537Y

CN2375537Y - Electric Golf vehicle gearbox

Info

Publication number: CN2375537Y
Application number: CN 99208781
Authority: CN
Inventors: 詹淑真
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-08
Filing date: 1999-04-08
Publication date: 2000-04-26
Anticipated expiration: 2009-04-08

Abstract

The utility model relates to an electric golf vehicle gear box. A golf vehicle is pivoted with a wheel shaft, both ends of which are respectively provided with a rolling wheel, at the back end of a supporting frame. A front wheel is pivoted at the front end. The upper part of the supporting frame is provided with a gear box provided with a driving gear and a drive gear. A motor shaft is embedded at the driving gear. The wheel shaft is penetrated at the drive gear. A driven gear and a transmission gear which are coaxial are pivoted between the driving gear and the drive gear. The driven gear and the transmission gear are respectively mutually engaged with the driving gear and the drive gear. The reduction ratio of the driving gear and the driven gear as well as the transmission gear and the drive gear is equal to 22-28.99. Transmission efficiency can be improved, and electricity can saved.

Description

The electric golf cart gear case

The utility model relates to a kind of electric golf cart, refers to a kind of gear case of electric golf cart especially.

Golf is a kind of emerging motion, because of its characteristic determines, most golf course all is positioned at broad slope, therefore the people who plays ball is except that movable, and can appreciate beautiful landscape, so golf is subjected to gradually liking and payes attention to, and because generally playing a golf has 18 holes, and its court is taken up an area of vast, therefore early the people who generally plays ball the time is in order to save muscle power, and all employ the caddie usually and help and bear golf bag, and owing to ask the required expense of a caddie not low, invisible has been improved the expense of playing ball, common people can't often be played ball, so golf is accepted in order to make the most common people of golf order also just always to people's's a kind of " noble sports " impression, so the golf cart of carrying golf bag has been arranged thereafter, the expense of playing ball with reduction;

Early stage golf cart is the go-cart of two-wheeled, after golf bag places on the golf cart, push away or spur golf cart by the user, though so can alleviate the burden of bearing golf bag, yet because the place of golf course has numerous gradients, therefore also can't solve the problem of burden for users really, the development of electrodynamic type three-wheel golf cart has then been arranged, make golf cart only need under user's support, can walk voluntarily, promote user convenience, as Fig. 7, shown in 8, this golf cart mainly is to be installed with one respectively to supply wheel shaft 55 to wear the axle sleeve 51 of pivot in both sides, support body 50 bottom, and wheel shaft 55 two ends are respectively equipped with roller 52, support body 50 bottoms are provided with the support 53 of a tool front-wheel 54 to protracting again, and establish a gear case 60 on support 53 and the axle sleeve 51, to drive golf cart, this gear case mainly is to establish a worm gear 61 on wheel shaft 55, and on support 53, establish a motor 63 by battery 62 power supply, and motor 63 stretch backward be provided with one with worm gear 61 engaged worm 64, use after motor 63 drives worm screw 64, can utilize worm gear 61 live axles 55, drive golf cart and advance.

Though above-mentioned golf cart can utilize the electrical motor driven golf cart, it is right because general motor best power rotating speed is about 2800rpm to 3750rpm, therefore for effective rev down, so the reduction ratio of worm and wheel is very big, so not only cause the gear case volume to become big, and driving efficiency is also poor, therefore motor must expend more electric energy, can drive golf cart effectively, and because general golf field boundary is very big, for making the user use, the electric energy that makes battery hold played a ball, therefore existing golf cart need use bigger battery, and because the macrocell Heavy Weight causes user's inconvenience, moreover the speed of its selection of can arranging in pairs or groups is less, therefore the user's of full various different builds speed be necessary to do further improvement really enough.

The purpose of this utility model provides a kind of electric golf cart gear case of promoting the power saving of driving efficiency.

The technical solution of the utility model is to provide a kind of electric golf cart gear case, this golf cart utilizes pole to be provided with a support in support body below, the support rear end is pivoted with the wheel shaft of a two ends tool roller, the support front end is pivoted with a front-wheel again, the support top is provided with the gear case of a connection roller, this gear case is located at motor drive shaft and wheel between centers, on this gear case, the lower end is arranged with a driving gear and driven wheel, wherein motor drive shaft is to be embedded in driving gear, wheel shaft then is to be arranged in the driven wheel axle center, gear case is pivoted with a coaxial driven gear and a transmission gear between driving gear and driven wheel again, wherein driven gear and transmission gear are meshing with each other with driving gear and driven wheel respectively, it is characterized in that:

The reduction ratio of above-mentioned driving gear and driven gear and transmission gear and driven wheel is 22～28.99.

In above-mentioned electric golf cart gear case, driving gear, driven gear, transmission gear and the driven wheel number of teeth can be respectively 9 teeth, 42 teeth, 10 teeth and 49 teeth; 9 teeth, 42 teeth, 9 teeth and 48 teeth; 8 teeth, 43 teeth, 10 teeth and 50 teeth; Perhaps be 8 teeth, 43 teeth, 9 teeth and 48 teeth.

The utility model compared with the prior art advantage and good effect is very obvious.By above technical scheme as can be known, the utility model is established a gear case in motor drive shaft and wheel between centers, and upper and lower end is pivoted with driving gear and driven wheel respectively in gear case, and be provided with coaxial driving cog and driven gear between driving gear and driven wheel, but use the purpose that reaches the deceleration golf cart, and make in 22～28.99 the scope of maintaining between driving gear and driven wheel, make golf cart can reach best output and purpose of power saving, effectively promote driving efficiency, satisfy the user of various different builds simultaneously.

Further specify specific structural features of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is a golf cart schematic appearance of the present utility model, in order to mode of appearance of the present utility model and relativeness thereof to be described.

Fig. 2 is the three-dimensional generalized section of the utility model gear case, uses configuration and relevant position thereof in the explanation gear case.

Fig. 3 is the plan sketch of the utility model gear case, further specifies the reduction ratio of inner gear of the gear box.

Fig. 4 is the gear case scheme drawing of another embodiment of the utility model, further specifies another kind of gear reduction ratio.

Fig. 5 is the gear case scheme drawing of the another embodiment of the utility model, uses another gear reduction ratio of explanation.

Fig. 6 is the utility model gear case scheme drawing of an embodiment again, in order to another gear reduction ratio to be described.

Fig. 7 is the schematic appearance of existing golf cart gear box structure.

Fig. 8 is the engagement form of existing gear case worm and wheel.

The utility model is a kind of with the electric golf cart gear case of promoting driving efficiency, at first please referring to shown in Figure 1, the main of this golf cart utilizes pole to be provided with a support 11 in support body 10 belows that can adorn the sanction golf bag, support 11 rear end is pivoted with a wheel shaft 12 between both sides jointly, and wheel shaft 12 two ends are installed with a roller 13 respectively, support 11 front ends are pivoted with a front-wheel 14 again, moreover but support 11 tops are provided with the gear case 20 of a live axle 12 rollers 13, constitute a golf cart by this;

Please cooperate simultaneously referring to Fig. 1, shown in 2, above-mentioned golf cart is established a motor 21 by battery 22 power supply drivings on

support

11,12 on the motor drive shaft of this motor 21 and wheel shaft are provided with a reducing gearbox 23, in the gear case 23 upper limbs be pivoted with one with motor drive shaft chimeric than path driving gear 24, each gear that adopts in the utility model can be spur gear, helical wheel ... Deng, the utility model is main embodiment with the helical wheel, because of the intermeshing gap of helical wheel less, can reduce the noise of transmission, and enhancement driving efficiency, motor 21 can drive driving gear 24, gear case 20 inner hypomeres are pivoted with the driven wheel 27 in a big footpath again, these driven wheel 27 centers are suitable can to fasten for wheel shaft 12, for utilizing driven wheel 27 to drive wheel shaft 12, moreover gear case 23 inner stage casings are pivoted with coaxial reaching than path transmission gear 26 than large-calibred belt moving gear 25, but make driven gear 25 and transmission gear 26 co-rotation, wherein driven gear 25 is fitted and can be meshing with each other with driving gear 24, transmission gear 26 then can be meshing with each other with driven wheel 27, by this when the motor shaft turn of motor 21, but direct drive driving gear 24 start driven gears 25 and transmission gear 26, and utilize transmission gear 26 to drive driven wheel 27 and rotate, roller 13 wheel shafts 12 of being located at driven wheel 27 axle center can together be rotated, for driving golf cart;

And as described in Fig. 2,3, driving gear 24 in the reducing gearbox 23, driven gear 25, transmission gear 26 are decided to be 9 teeth, 42 teeth, 10 teeth and 49 teeth respectively with the number of teeth of driven wheel 27, and make the driving gear 24 and the reduction ratio of driven wheel 27 is 22.87, in order to make golf cart can be issued to the output of maximum power and power saving, significantly to promote driving efficiency in existing same specification.

Moreover as described in Figure 4, the number of teeth of driving gear 24A, driven gear 25A, transmission gear 26A and driven wheel 27A in the reducing gearbox 23 also can be defined as 9 teeth, 42 teeth, 9 teeth and 48 teeth respectively, and the reduction ratio that makes driving gear 24A and driven wheel 27A is 24.89.

And for example Fig. 5 is described, the number of teeth of driving gear 24B, driven gear 25B, transmission gear 26B and driven wheel 27B in the reducing gearbox 23 is decided to be 8 teeth, 43 teeth, 10 teeth and 50 teeth respectively, and so the reduction ratio of this driving gear 24B and driven wheel 27B is promoted to 26.87.

Described for another Fig. 6, the number of teeth of driving gear 24C, driven gear 25C, transmission gear 26C and driven wheel 27C in the reducing gearbox 23 is decided to be 8 teeth, 43 teeth, 9 teeth and 48 teeth respectively, the reduction ratio that makes driving gear 24C and driven wheel 27C is 28.67, so can promote the driving efficiency of gear case 20.

Therefore (be about 2800rpm to 3750rpm at the rotating speed that cooperates general motor 21, this rotating speed can make the horsepower output of motor, efficient and torsion reach optimization) and the diameter of general roller 13 (diameter is 250mm, the wheel circumference is 785mm) after, because common people's walking or the speed per minute of hurrying up are about 71 to 120 meters, the rotating speed that is roller is about 90rpm to 150rpm, need have under the little and light requirement of volume at the reference golf cart simultaneously, can find that by the above embodiments the number of teeth reduction ratio of driving gear 24 and driven wheel 27 if can maintain in 22～28.99 the scope, be preferable situation (build of user Ke Yi self and each one institute's good utilisation adjuster are adjusted motor rotary speed between 2800rpm to 3750rpm, to keep best output and required speed).

Claims

1. electric golf cart gear case, this golf cart utilizes pole to be provided with a support in support body below, the support rear end is pivoted with the wheel shaft of a two ends tool roller, the support front end is pivoted with a front-wheel again, the support top is provided with the gear case of a connection roller, this gear case is located at motor drive shaft and wheel between centers, on this gear case, the lower end is arranged with a driving gear and driven wheel, wherein motor drive shaft is to be embedded in driving gear, wheel shaft then is to be arranged in the driven wheel axle center, gear case is pivoted with a coaxial driven gear and a transmission gear between driving gear and driven wheel again, wherein driven gear and transmission gear are meshing with each other with driving gear and driven wheel respectively, it is characterized in that:

2. electric golf cart gear case according to claim 1 is characterized in that: this driving gear, driven gear, transmission gear and the driven wheel number of teeth are respectively 9 teeth, 42 teeth, 10 teeth and 49 teeth.

3. electric golf cart gear case according to claim 1 is characterized in that: this driving gear, driven gear, transmission gear and the driven wheel number of teeth are respectively 9 teeth, 42 teeth, 9 teeth and 48 teeth.

4. electric golf cart gear case according to claim 1 is characterized in that: its this moving gear, driven gear, transmission gear and the driven wheel number of teeth are respectively 8 teeth, 43 teeth, 10 teeth and 50 teeth.

5. electric golf cart gear case according to claim 1 is characterized in that: this driving gear, driven gear, transmission gear and the driven wheel number of teeth are respectively 8 teeth, 43 teeth, 9 teeth and 48 teeth.