CN2604535Y

CN2604535Y - Gear speed increasing mechanism for hand generator

Info

Publication number: CN2604535Y
Application number: CN 03233650
Authority: CN
Inventors: 薛伟光; 姚苏苏; 金德录
Original assignee: Guiyang Aviation Electrical Machinery Co Ltd
Current assignee: Guiyang Aviation Electrical Machinery Co Ltd
Priority date: 2003-03-20
Filing date: 2003-03-20
Publication date: 2004-02-25
Anticipated expiration: 2013-03-20

Abstract

The utility model discloses a gear speed mechanism equipped at a hand generator and consists of a front end cover, a rear end cover, a gear shaft and a bearing. The front end cover 2 and the rear end cover 6 constitute a gear box; a gear 9 is fixed at a gear shaft 10; a bearing 8 and a bearing 11 are borne at the gear box; the gear shaft 3 is connected with a gear shaft 5 by a bearing 4 at a hub; a journal at one end of the gear box 3 is borne at the front end cover 2 by a bearing 1; the gear shaft 5 is borne by a bearing 7 at the rear end cover 6 and a bearing 4 at the hub of the gear shaft 3; the projection end of a bearing 3 is connected with a handle to act as the power input terminal of the hand generator. The gear shaft 5 is an output shaft and acts as a rotor shaft of the generator; the gear shafts 3 and 10 respectively act as a driving wheel and a driven wheel at the primary stage; the gear 9 and the gear shaft 5 respectively act as the driving wheel and the driven wheel at the secondary stage. The hub of the driving gear at the primary acting as a bearing of the output shaft can both enhance the rigidity of an output gear shaft and simplify the structure to reduce the outline, lower the mass and raise the efficiency.

Description

Hand generator gear up mechanism

Technical field: the utility model relates to generator, particularly a kind of hand generator gear up mechanism.

Background technique: existing product often adopts the tertiary gear speed increasing mechanism, though can satisfy the requirement that reduces machine volume, weight reduction, but complex structure, efficient is low, 10% efficient is lost in every grade of gear transmission approximately, if adopt the secondary gear speedup, and will reach same high speed increasing ratio, under the structural type of existing secondary gear speedup, then there is bulky worn-out end again.

Summary of the invention: the purpose of this utility model is to provide a kind of hand generator gear up mechanism, and it is a kind of secondary gear speed increasing mechanism, adopts this mechanism, has both helped reducing machine volume, can reach the purpose of speedup again.

Formation of the present utility model: form by front cover, rear end cover, gear shaft, gear and bearing, front cover 2 and rear end cover 6 are formed a gear-box, gear 9 is fixed on the gear shaft 10, be bearing on the gear-box by bearing 8,11, gear shaft 3 is connected with gear shaft 5 by the bearing on the wheel hub 4, gear shaft 3 one end journals are bearing on the front cover 2 by bearing 1, and gear shaft 5 is supported jointly by the bearing 4 on bearing on the rear end cover 67 and gear shaft 3 wheel hubs.

Gear shaft 3 is the semiaxis formula gear shafts that have bearing chamber on one the one end wheel hub, and the other end has axle journal.

The central lines of the center line of first order axle shaft gear axle 3 and second level output shaft gear axle 5 is a straight line.

Compared with the prior art, the utility model adopts the secondary speed increasing mechanism, works as generator rotor shaft, just during the axis coinciding of the axle center of the output shaft of speed increasing mechanism and first order actuation gear, helps reducing hand generator complete machine size most; Utilize first order actuation gear wheel hub to do the supporting of output shaft, both improved the rigidity of output gear shaft, simplify the structure again, make complete machine satisfy the requirement that volume is little, in light weight, efficient is high.

Description of drawings: accompanying drawing is the utility model structural representation.

1. bearings among the figure, 2. front cover, 3. gear shaft, 4. bearing, 5. gear shaft, 6. rear end cover, 7. bearing, 8. bearing, 9. gear, 10. gear shaft, 11. bearings.

Embodiment: as shown in drawings, front cover 2 and rear end cover 6 are formed a gear-box, gear 9 is fixed on the gear shaft 10, be bearing on the gear-box by bearing 8,11, gear shaft 3 is the semiaxis formula gear shafts that have bearing chamber on one the one end wheel hub, and the other end axle journal cooperates with bearing 1 on the front cover 2, and gear shaft 3 is bearing on the front cover 2, the axle external part is connected with crank handle, as the power intake of hand generator; Gear shaft 5 is supported jointly by the bearing 4 on bearing on the rear end cover 67 and gear shaft 3 wheel hubs, gear shaft 5 is output shafts, as the rotor shaft of generator, as the driving wheel and the follower of the first order, gear 9 and gear shaft 5 are respectively as partial driving wheel and follower respectively for gear shaft 310.

Claims

1. hand generator gear up mechanism, by front cover, rear end cover, gear shaft, gear and bearing are formed, it is characterized in that: front cover (2) and rear end cover (6) are formed a gear-box, gear (9) is fixed on the gear shaft (10), be bearing on the gear-box by bearing (8) (11), gear shaft (3) is connected with gear shaft (5) by the bearing on the wheel hub (4), gear shaft (3) one end journals are bearing on the front cover (2) by bearing (1), and gear shaft (5) is by the common supporting of the bearing (4) on bearing (7) on the rear end cover (6) and gear shaft (3) wheel hub.

2. hand generator gear up according to claim 1 mechanism, it is characterized in that: gear shaft (3) is the semiaxis formula gear shaft that has bearing chamber on one the one end wheel hub, and axle journal is arranged on the other end.

3. hand generator gear up according to claim 1 mechanism, it is characterized in that: the central lines of the center line of first order axle shaft gear axle 3 and second level output shaft gear axle 5 is a straight line.