CN106687714A

CN106687714A - Double-speed-ratio double-torsion speed reducer

Info

Publication number: CN106687714A
Application number: CN201480081652.0A
Authority: CN
Inventors: 李春继
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-07
Filing date: 2014-11-07
Publication date: 2017-05-17
Also published as: WO2016070408A1

Abstract

A double-speed-ratio double-torsion speed reducer comprises an input shaft (11), a first driven shaft (12), a second driven shaft (13), a gear sleeve (21), a compound driven gear (141), a differential mechanism set (41), and first and second output shafts (14, 51). The shaft bodies of the input shaft (11) and the first driven shaft (12) are provided with key grooves. The input shaft (11), the first driven shaft (12) and the second driven shaft (13) are arranged in parallel. The outer wall of the gear sleeve (21) is provided with a circumferential annular groove (211), and the inner wall of the gear sleeve is provided with key grooves. A shifting fork (31) is arranged inside the circumferential annular groove (211) and shifts the gear sleeve (21) to move. The first driven shaft (12) is provided with a first driving gear (121). The second driven shaft (13) is provided with a second input gear (131) and a second output gear (132). The gear sleeve (21) is engaged with the first driven shaft (12) and the second input gear (131) by reversing respectively. The compound driven gear (141) is provided with first and second meshing surfaces (142, 143). The first and second meshing surfaces are fixed on a mounting plate of the differential mechanism set (41) and are respectively engaged with the first driving gear (121) and the second output gear (132). The first and second output shafts (14, 51) are connected with two sun gears of the differential mechanism set (41) respectively. The double-speed-ratio double-torsion speed reducer is simple in structure and convenient to operate.

Description

Double-speed-ratio double-torque speed reducer

Technical Field

The utility model relates to a gear drive, concretely relates to reduction gear.

Background

The application range of the gear reducer is very wide, but the existing double-speed-ratio or multi-speed-ratio reducer is often large, heavy and high in cost, so that the gear reducer is difficult to be widely applied.

Disclosure of Invention

The utility model aims at providing a double speed ratio double-torque reducer, its simple structure, convenient operation.

In order to achieve the above object, the technical solution of the present invention is: a double-speed-ratio double-torque speed reducer comprises an input shaft, a first driven shaft, a second driven shaft, a gear sleeve, a composite driven gear, a differential group, a first output shaft and a second output shaft, wherein the second driven shaft and the input shaft are parallel to each other, the gear sleeve, the composite driven gear, the differential group and the first output shaft are coaxially arranged, a circumferential annular groove is formed in the outer wall of the gear sleeve, a shifting fork is arranged in the circumferential annular groove and can shift the gear sleeve to move on the input shaft and the first driven shaft, when the gear sleeve is sleeved on the input shaft, the gear sleeve and the input shaft are radially fixed to each other, when the gear sleeve is sleeved on the first driven shaft, the gear sleeve and the first driven shaft are radially fixed to each other, a first driving gear is fixed on the first driven shaft, a second input gear and a second output gear are fixed on the second driven shaft, and the first driving gear and the second output gear are bevel gears, the gear sleeve is meshed with the second input gear when sleeved on the input shaft, the composite driven gear is fixed on two planetary gears of the differential set, a first meshing surface and a second meshing surface are arranged on the composite driven gear, the first meshing surface is meshed with the first driving gear, the second meshing surface is meshed with the second output gear, and the first output shaft and the second output shaft are respectively fixed on two sun gears of the differential set.

The utility model discloses two moment of torsion reducers of double-speed ratio, wherein, the key-type connection between input shaft and the gear sleeve.

The utility model discloses two moment of torsion reducers of double-speed ratio, wherein, the key-type connection between first driven shaft and the gear sleeve.

The utility model discloses two moment of torsion reducers of double velocity ratio, wherein, the key-type connection between second driven shaft and the second input gear.

After adopting above-mentioned scheme, compare with prior art, because the utility model discloses two moment of torsion reduction gears's of double-speed ratio first driven shaft and the coaxial setting of input shaft, the shift fork can stir the gear sleeve and move on input shaft, first driven shaft and be equipped with first, two mating surfaces of second on the compound driven gear, therefore the accessible shift fork is stirred the gear sleeve and is sheathe in, moves down to make the output shaft according to two speed ratios, two moment of torsion output power, simple structure, convenient operation easily popularize and apply.

Drawings

FIG. 1 is a first state structural diagram of the dual-ratio dual-torque retarder of the present invention;

FIG. 2 is a second state of the dual ratio dual torque reducer of the present invention;

fig. 3 is a third state structural diagram of the dual-speed-ratio dual-torque reducer of the present invention.

Detailed Description

As shown in FIG. 1, the dual-speed-ratio dual-torque reducer of the present invention comprises an input shaft 11, a first driven shaft 12, a second driven shaft 13, a first output shaft 14, a second output shaft 51, a gear sleeve 21, a composite driven gear 141, a differential group 41, wherein the second driven shaft 13 and the input shaft 11 are parallel to each other, the first driven shaft 12 and the input shaft 11 are coaxially disposed, the outer wall of the gear sleeve 21 is provided with a circumferential annular groove 211, a shifting fork 31 is disposed in the circumferential annular groove 211, the gear sleeve 21 can be shifted on the input shaft 11 and the first driven shaft 12 by the shifting fork 31, when the gear sleeve 21 is sleeved on the input shaft 11, the input shaft 11 and the gear sleeve 21 are in key connection, so that the gear sleeve 21 and the input shaft 11 are radially fixed to each other, when the gear sleeve 21 is downward moved under the action of the shifting fork 31 and sleeved on the first driven shaft 12, the first driven shaft 12 and the gear sleeve 21 are radially fixed to each other, the first driven shaft 12 is further provided with a first driving gear 121, the second driven shaft 13 is provided with a second input gear 131 and a second output gear 132, the first driving gear 121 and the second output gear 132 are both bevel gears, the position of the second input gear 131 corresponds to the position of the gear sleeve 21 arranged on the input shaft 11, the gear sleeve 21 can be meshed with the second input gear 131 when being sleeved on the input shaft 11, the composite driven gear 141 is fixed on the two planetary gears of the differential set 41, the composite driven gear 141 is provided with a first meshing surface 142 and a second meshing surface 143, the first meshing surface 142 is meshed with the first driving gear 121, the second meshing surface 143 is meshed with the second output gear 132, and the first output shaft 14 and the second output shaft 51 are respectively fixed on the two sun gears of the differential set 41.

When the dual-speed-ratio dual-torque reducer of the utility model works, the motor drives the power disc to rotate, the power disc drives the input shaft 11 to rotate, the gear sleeve 21 is shifted by the shifting fork 31 to make the gear sleeve 21 move upwards and be sleeved on the input shaft 11, as shown in figure 1, the gear sleeve 21 is meshed with the second input gear 131, thereby driving the second output gear 132 to rotate, the second output gear 132 is meshed with the second meshing surface 143 of the composite driven gear 141, power is output by the first and

second output shafts

14 and 51 according to the first speed ratio and the first torque, the gear sleeve 21 is shifted by the shifting fork 31 to make the gear sleeve 21 move downwards, as shown in figure 2, the gear sleeve 21 and the second input gear 131 are completely separated, when the second driven shaft 13 stops rotating, the gear sleeve 21 is continuously moved downwards and is sleeved at the lower end of the input shaft 11 and the upper end of the first driven shaft 12 by the shifting fork 31, as shown in figure 3, the input shaft 11 and the first driven shaft 12 are connected, the first driven shaft 12 drives the first driving gear 121 to rotate, the first driving gear 121 is meshed with the first meshing surface 142 of the composite driven gear 141, and power is output through the first output shaft 14 and the second output shaft 51 according to a second speed ratio and a second torque.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Industrial applicability

The utility model discloses two moment of torsion reducers of double velocity ratio can be used to multiple mechanical device, and its simple structure, convenient operation have industrial practicality.

Claims

The utility model provides a double ratio dual torque reduction gear, includes input shaft (11), first driven shaft (12), second driven shaft (13), and second driven shaft (13) and input shaft (11) are parallel to each other, its characterized in that: still include gear sleeve (21), compound driven gear (141), differential unit (41) and first, second output shaft (14,51), first driven shaft (12) and input shaft (11) coaxial setting, the outer wall of gear sleeve (21) is equipped with circumference annular groove (211), is equipped with shift fork (31) in circumference annular groove (211), and shift fork (31) can be stirred gear sleeve (21) is in input shaft (11), first driven shaft (12) are gone up and are removed, when gear sleeve (21) cover is in when on input shaft (11), gear sleeve (21) and input shaft (11) are radial reciprocal anchorage, works as when gear sleeve (21) cover is in on first driven shaft (12), gear sleeve (21) and first driven shaft (12) are radial reciprocal anchorage, be fixed with first driving gear (121) on first driven shaft (12), a second input gear (131) and a second output gear (132) are fixed on the second driven shaft (13), the first driving gear (121) and the second output gear (132) are both bevel gears, the gear sleeve (21) is meshed with the second input gear (131) when being sleeved on the input shaft (11), the composite driven gear (141) is fixed on two planetary gears of the differential set (41), a first meshing surface (142) and a second meshing surface (143) are arranged on the composite driven gear (141), the first meshing surface (142) is meshed with the first driving gear (121), the second meshing surface (143) is meshed with the second output gear (132), and the first output shaft (14) and the second output shaft (51) are respectively fixed on two sun gears of the differential set (41).
A two-ratio dual torque retarder as claimed in claim 1 wherein: the input shaft (11) and the gear sleeve (21) are connected through a key.
A two-ratio dual torque retarder as claimed in claim 2 wherein: and the first driven shaft (12) is in key connection with the gear sleeve (21).
A two-ratio dual torque retarder as claimed in claim 3 wherein: and the second driven shaft (13) is in key connection with the second input gear (131).