CN201714920U

CN201714920U - Speed reducing machine

Info

Publication number: CN201714920U
Application number: CN2010203020447U
Authority: CN
Inventors: 周祥俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-01
Filing date: 2010-02-01
Publication date: 2011-01-19
Anticipated expiration: 2020-02-01

Abstract

A speed reducing machine relating to the mechanical technology field comprises a machine shell, a power-output shaft and a power-input shaft. The machine shell is provided therein with an annular gear capable of rotating around the machine shell; the power-input shaft is installed on the axial line of the annular gear while the power-output shaft is installed on the other side of machine shell sharing the same axial line with the power input shaft; the part of the power-input shaft located inside the machine shell is fixed with two gears, one of which, via one shaft thereof, is engaged with a fixed gear fixedly connected with the machine shell and the annular gear as well and the other of which, via one shaft thereof and a connecting rack, is fixed on the power-output shaft and engaged with a movable gear rotating around the power-output shaft and the annular gears as well. In comparison with the prior art, the utility model enables the power-input shaft and the power-output shaft to be arranged on the same axial line; in addition, the speed reducing machine of the utility model has a small size and the inner parts are arranged in a compact way, thereby, making the machine light and handy.

Description

Speed reducer

Technical field

The utility model relates to a kind of mechanical variable speed device, especially a kind of gear transmission speed reducer.

Background technique

The existing mechanical speed change gear, especially adopting gear-driven speed changer is to realize speed change by a plurality of gear classification transmissions of installing respectively on each gear shaft, the scope of speed change is big more, the group number of gear that needs so and gear shaft is just many more, and the volume of complete machine also increases thereupon, it is big to take up room, heaviness.

Summary of the invention

It is little that technical problem to be solved in the utility model provides a kind of volume, and inner body is arranged compact, light and handy speed reducer.

In order to solve the problems of the technologies described above, the utility model includes casing, pto and power input shaft, being equipped with in described casing can be around the ring gear of casing rotation, described power input shaft is installed on the shaft axis of described ring gear, described pto be installed in be positioned at the same shaft axis of described power input shaft on the another side of described casing; The partial fixing that is positioned at described casing at described power input shaft has two gears, one of them gear is by the engagement of its fixed gear of fixedlying connected with described casing and described ring gear, another gear by one its fix by link press span and described pto and mesh around the free gear and the described ring gear of described pto rotation.

In the technique scheme, described casing can be by two housings mutually to being connected into disc-shape, constitute by bolt; Between described power input shaft and the described casing and between described pto and the described casing bearing can be installed.

Owing to adopted technique scheme, the utility model compared with prior art, the beneficial effect that has is:

The utility model volume is little, and it is compact, light and handy that inner body is arranged.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation.

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is the internal structure schematic representation that each gear of the utility model connects.

Embodiment

Below in conjunction with as the figure example, the utility model is described in further detail:

Referring to Fig. 1, embodiment shown in Figure 2, the utility model has a casing 1, and this casing 1 is that the housing butt joint by two circles fixedly forms by bolt 11, is set with a ring gear 2 in casing 1, and this ring gear 2 can be around casing 1 rotation; A power input shaft 9 is installed on the shaft axis of ring gear 2, and the outside that an end of this root power input shaft 9 stretches out casing 1 is used for being connected with motor, between casing 1 and power input shaft 9 bearing 12 is installed; The partial fixing that is positioned at casing 1 at power input shaft 9 has small one and large one two gears.Also be fixed with an axle 4 on the sidewall in casing 1, a gear 3 is installed on this root axle 4, this gear 3 is with gearwheel 5 and ring gear 2 engagements; The another side of casing 1 be positioned at power input shaft 9 same shaft axiss on a pto 10 also is installed, an end of this root pto 10 stretches out another sidewall of casing 1; The end that pto 10 is positioned at casing 1 is fixed with link press span 7, the other end of this link press span 7 is equipped with a gear 8 by wheel shaft, and this gear 8 also can moving power output shaft 10 rotate ring gear 2 and small gear 6 engagements under the drive of ring gear 2; Between pto 10 and casing 1, bearing 13 is installed; When power input shaft 9 is connected with motor, driven by motor power input shaft 9 rotates, power input shaft 9 drives gearwheel fixed thereon 5 simultaneously and small gear 6 rotates, also rotate with gearwheel 5 meshed gears 3 thereupon, because this gearwheel 5 flows to ring gear 2 by the gear 3 that is fixed on the casing 1 with power, ring gear 2 is counter-rotation with gearwheel 5, meanwhile, driven by small gear 6 with small gear 6 meshed gears 8, it and small gear 6 are counter-rotation, when gear 8 is counter-rotation with small gear 6, promoting link press span 7 turns in the same direction along ring gear 2 and small gear 8, gear 3 makes ring gear 2 and gear 3 be counter-rotation with gearwheel 5, small gear 6 makes gear 8 and small gear 6 be in the same way with ring gear 2 and rotates, because the modulus of the gear except ring gear 2 is inconsistent, therefore it is poor to produce speed when rotating, the speed difference promotes link press span by gear and is fixed on the link press span the other end when ring gear slides pto rotation, the power after externally output is slowed down.

Claims

1. speed reducer, include casing, pto and power input shaft, it is characterized in that: being equipped with in described casing can be around the ring gear of casing rotation, described power input shaft is installed on the shaft axis of described ring gear, described pto be installed in be positioned at the same shaft axis of described power input shaft on the another side of described casing; The partial fixing that is positioned at described casing at described power input shaft has two gears, one of them gear is by the engagement of its fixed gear of fixedlying connected with described casing and described ring gear, another gear by one its fix by link press span and described pto and mesh around the free gear and the described ring gear of described pto rotation.

2. speed reducer according to claim 1 is characterized in that: described casing be by two housings mutually to being connected into disc-shape, constitute by bolt.

3. speed reducer according to claim 1 is characterized in that: between described power input shaft and the described casing and between described pto and the described casing bearing is being installed.