CN103867404A

CN103867404A - Bar gear right-angle friction-free transmission mechanism

Info

Publication number: CN103867404A
Application number: CN201210531847.3A
Authority: CN
Inventors: 杜满河
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2014-06-18

Abstract

The invention discloses a bar gear right-angle friction-free transmission mechanism, which is suitable for vertical-shaft wind-driven generators. The bar gear right-angle friction-free transmission mechanism is a speed increasing gear as well as a driver of a variable-pitch vertical-shaft wind-driven generator. A bar gear is formed by fixedly arranging bar teeth with square or circular tooth profiles on a disk at certain tooth spaces. A bar gear arranged on a hub of a vertical-shaft wind wheel is a bull gear as well as a driving gear, and a bar gear arranged on a horizontal generator shaft is a pinion as well as a driven wheel. See 2. In a bar gear arranged on a horizontal-shaft generator shaft, cylindrical bar teeth are sleeved with a cylindrical roller bearing, and rolling of the outer ring of the cylindrical roller bearing replaces friction generated during transmission among bar teeth under the condition of meshed transmission. The bar gear right-angle friction-free transmission mechanism replaces gearbox speed-increasing transmission, thereby eliminating the presence and leakage of gearbox lubricating oil and enhancing the safety. Bar teeth of a bar gear on a horizontal shaft of a small-sized variable-pitch vertical-shaft wind-driven generator is sleeved with a graphite polytetrafluoroethylene sliding bearing.

Description

Rod gear right angle is without slip gear

Technical field

The drive technology of vertical axis aerogenerator.

Background technique

Although the technology of wind-driven generator is all American-European horizontal axis wind-driven generator technology substantially at present.But it has been recognized that some shortcomings of horizontal axis wind-driven generator, as fan blade manufacturing technology requires higher, the shriek of blade tip cutting wind-force is larger, noise is larger on people and birds impact, speed-increasing transmission leakage of oil and fire hazard, influence ecological environment, the more important thing is that it is that damping is driving, wind-force can not change driving force completely into, each state is all at research and development vertical axis aerogenerator for this reason, and how vertical axis rotor links together with generator, and transmission efficiency is very high, speed increasing ratio is very large, this is that common people research and develop pursuit " object ", I deliver and obtain and become after paddle formula vertical axis aerogenerator patent, carried out again the research of this problem in order to improve patent, as the sub-patent application of CN201110113520 × patent.

Summary of the invention

1, excellent gear is actually the gear of a square bar tooth.Rod tooth is solid on a disk by a constant pitch, forms a gear.Be named as excellent gear.

2, together with initiatively excellent gear links stationary axle with the wind wheel hub of vertical shaft fan.The tooth of rod gear is vertically downward, as Fig. 1:

3, the diameter of excellent gear is normally very large.Large diameter is all more than 10M.As figure

4, vertical axis aerogenerator is selected horizontal axis wind-driven generator equally, is convenient to like this horizontal axis wind-driven generator from now on and is transformed into vertical axis aerogenerator, the new generator type of also need not redeveloping simultaneously.

5, the gear on generator shaft is also clavate gear.As shown in Figure 2, its excellent tooth is that cylindrical rolling bearing has been installed again on circular rod tooth, and its excellent tooth direction is level.Be parallel with generator shaft, engage without friction driving such square body rod tooth and a roller bearing outer ring, is that bearing element has replaced friction, so transmission efficiency can be up to 99% without friction.Because without friction, so operating life is also long, trouble-freely 20 years of operation.

6, excellent Gear Processing is convenient, only need be accurate pitch of teeth design processing, so processing charges is low.Save again a lot of steel simultaneously, lightweight be convenient to install see Fig. 3.

7, the bull wheel of tens rice diameters is that welding forms, and is first combined into cylinder, and then processing tooth, but requires smoothly, and the limit deviation of circumference is little, and deviate is determined according to the size of gear.

8, generator is arranged on below wind turbine on platform, and outside also will add a shelter.Be that excellent gear can not seal.

9, frequency modulation modulator is put convenient operation and maintenance on the ground, and generator is to be fixedly mounted on fixing platform, can be because of wind vector displacement, so the cable between generator and frequency modulation modulator can not turned round flower yet.

10, excellent gear is without in slip gear, and small gear is cylindrical rolling bearing, therefore only in cylindrical rolling bearing, fills bearing lubrication grease with just passable, so do not have other lubricant oil can be because leaking easily breaking out of fire of lubricant oil, so safer.

11, discuss powerful change paddle vertical axis aerogenerator above, but be also applicable to medium-sized change paddle vertical axis aerogenerator.Small-sized change paddle vertical axis aerogenerator can put a graphite tetrafluoro cover on small gear.

Accompanying drawing explanation

Fig. 1: become paddle formula vertical axis aerogenerator sketch.

1: regulator control system, 2: blade frame, 3: blade, 4: wheel hub, 5: column, 6: main bearing, 7: rolling bearing rod gear speeder, 8: generator, 9: cabin seat.

Fig. 2: become speed increaser sketch between paddle formula vertical shaft wind wheels and generator.

The 1 big stick-means of intimidation gear linking with wind wheel, 2: the bearing gear of generator rod gear, 3: generator gear, 4 generator shafts.

Fig. 3: become paddle formula vertical shaft wind wheels gearwheel sketch.

1: canine tooth wheel disc, 2: square bar tooth.

Embodiment

1, the ratio of the number of teeth of gearwheel and small gear, is also diameter ratio, gearwheel diameter D: small gear diameter d=speed increasing ratio, so should increase as much as possible the diameter of gearwheel in order to increase speed increasing ratio, reduces the diameter of small gear.

2, the very large manufacture of the diameter of gearwheel forms with steel plate splicing, requires the precision of diameter very high when manufacture, center of circle positioning accuracy request is installed simultaneously very high.

3, the excellent teeth material of excellent gear should be selected the steel of high strength and good toughness.

4, excellent tooth size is by steel strength, the size of the power of transmission, and safety coefficient industry requirement calculates and determines.

5, the size of tooth pitch is to design according to the size of excellent tooth and engagement situation.

6, gearwheel was constructed with being connected on the ground of wind wheel, last rigging out.

Claims

1. summary of the invention 2: the wind wheel hub of excellent gear and vertical shaft fan is connected and fixed, the excellent tooth of excellent gear is vertically downward, this is driving gear, is gearwheel.

2. summary of the invention 1: excellent gear is actually a square body tooth, by forming a gear on disk of a constant pitch fixed-link, is named as excellent gear.It can right-angle drive, and it is different from conventional involute gear and Worm Wheel System, and he is a brand-new driving mechanism.

3. roller bearing is arranged on cylinder rod tooth, and its entirety conduct is without friction-bar tooth, and this itself is exactly a creation, is one of core of this patent.

4. the cylinder rod tooth of excellent gear on the generator that level is installed has been installed again cylinder rolling bearing outward, when such easy access that the tooth level of gear is inwardly installed, is to remove, and clear bearing injects lubricant grease to bearing.It is mounted in the follower on horizontal type generator axle, is a small gear.