CN203162005U

CN203162005U - Novel double-speed reducer

Info

Publication number: CN203162005U
Application number: CN 201320179289
Authority: CN
Inventors: 吕富强; 张文君; 罗洪波
Original assignee: JINAN FATE CNC MACHINERY CO Ltd
Current assignee: JINAN FATE CNC MACHINERY CO Ltd
Priority date: 2013-04-11
Filing date: 2013-04-11
Publication date: 2013-08-28
Anticipated expiration: 2023-04-11

Abstract

The utility model discloses a novel double-speed reducer. The novel double-speed reducer comprises a box body, an output shaft and an input gear which is fixed on a motor input shaft are mounted in the box body, axes of the output shaft and the motor input shaft are positioned on the same straight line, a sleeve capable of moving up and down along the output shaft and a transition gear II are sleeved on the output shaft, an inner gear which can be meshed with the input gear is arranged on the sleeve, the input gear is meshed with a transition gear I which is mounted on a transition shaft, a sliding gear mechanism capable of moving up and down along the transition shaft is sleeved on the transition shaft, comprises a sliding gear and a shaft sleeve and is fixed on a gear shifting mechanism, the sliding gear is capable of being meshed with the transition gear II, and the shaft sleeve is integrated with the sliding gear and connected with the sleeve . On the premise that power of a spindle is unchanged, high torque can be provided at a low speed, and high power and rotating speed can be output coaxially. The novel double-speed reducer is provided with the gear shifting mechanism, and is quite compact in structure, saving in space, low in noise during operation and smooth in running at a high speed.

Description

Novel two-speed gearbox

Technical field

The utility model relates to a kind of speed reducer, is specifically related to a kind of novel two-speed gearbox.Belong to the speed reducer device field.

Background technique

As a rule, the cutting speed that soft material require is very high, the cutting force that hard material require is very big.But powerful motor can only provide very big cutting force, and very high working speed cannot be provided; On the contrary, low-power machine can provide very high rotary speed working, lacks bigger moment of torsion.

Summary of the invention

The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of novel two-speed gearbox being provided.

For achieving the above object, the utility model adopts following technical proposals:

A kind of novel two-speed gearbox, it comprises casing, output shaft is housed in the described casing and is fixed in input gear on the motor input shaft, the axis of described output shaft and motor input shaft is on same straight line; Being with on the described output shaft can be along its body that moves up and down and transition gear II, described body be provided with can with the internal gear of input gear engagement, described input gear also meshes with transition gear I, described transition gear I is installed on the transition axis, being with on the described transition axis can be along its sliding gear emchanism that moves up and down, described sliding gear emchanism comprise can with the sliding gear of transition gear II engagement and with the axle sleeve of sliding gear one, described axle sleeve links to each other with body, and described sliding gear emchanism is fixed on the gearshift.

One end of described output shaft by bearing housing on the motor input shaft.

The outside of described body is provided with boss, the outside of described axle sleeve be provided with can the holding boss groove, described boss is stuck in the groove, has guaranteed that both can rotate respectively and can move up and down synchronously.

Described body is spline housing, and output shaft and transition axis are splined shaft.

Described gearshift comprises two duplex position cylinders, and described cylinder is hydraulic pressure or pneumatic cylinders, the stationarity of entire mechanism when having guaranteed gearshift.

Described input gear and the same number of teeth of sliding gear.

Described transition gear I and the same number of teeth of transition gear II.

Working principle of the present utility model:

When the cylinder inner carrier of gearshift is in first station, input gear and internal gear engagement, sliding gear and transition gear II do not mesh, the output shaft output speed that the motor input shaft is connected with the spline housing key by the input gear driven, and the speed ratio of output speed and input speed equals 1; When the piston of gearshift is in second station, spline housing breaks away from the input gear, the motor input shaft rotates by input gear driven transition gear I, the transition axis that transition gear I drives key connection with it rotates, and then the sliding gear that is connected with the transition axle key of drive rotates, and finally drives the output shaft output slow-speed of revolution by the transition gear II with the sliding gear engagement.

The beneficial effects of the utility model:

1. under the constant situation of spindle power, realized both can under the low speed situation, providing higher moment of torsion, again can coaxial output high-power and high rotating speed.

2. have gearshift, and structure is very compact, saves the space.

3. noise is low when operating, and running is smooth and easy under high-speed case.

Description of drawings

Fig. 1 is the structural representation of the utility model when being in first station;

Fig. 2 is the structural representation of the utility model when being in second station;

Fig. 3 is the B-B sectional drawing of Fig. 1;

Fig. 4 is the plan view of gearshift;

1. input gears wherein, 2. spline housing, 3. transition gear II, 4. bearing gland, 5. output shaft, 6. housing plate, 7. transition axis, 8. sliding gear, 9. transition gear I, 10. casing, 11. gearshifts.

Embodiment

Below in conjunction with drawings and Examples the utility model is further set forth, should be noted that following explanation only is in order to explain the utility model, its content not to be limited.

A kind of novel two-speed gearbox, it comprises casing, output shaft 5 is housed in the casing and is fixed in input gear 1 on the motor input shaft, the axis of output shaft 5 and motor input shaft on same straight line, an end of output shaft 5 by bearing housing on the motor input shaft; Being with on the output shaft 5 can be along its spline housing that moves up and down 2 and transition gear II, spline housing 2 be provided with can with the internal gear of input gear 1 engagement, input gear 1 also meshes with transition gear I9, transition gear I9 is installed on the transition axis 7, being with on the transition axis 7 can be along its sliding gear emchanism that moves up and down, sliding gear emchanism comprise can with the sliding gear 8 of transition gear II3 engagement and with the axle sleeve of sliding gear 8 one, the outside of spline housing 2 is provided with boss, the outside of axle sleeve be provided with can the holding boss groove, described boss is stuck in the groove, guaranteed that axle sleeve and spline housing 2 can rotate respectively and can move up and down synchronously, sliding gear emchanism is fixed on the gearshift 11.Sliding gear 8 is fixed on the gearshift 11, and sliding gear 8 can mesh with transition gear II3.Output shaft 4 and transition axis 7 are splined shaft, and output shaft 5 is connected with spline housing 2 keys, and transition gear II3 is connected with transition axis 7 keys respectively with sliding gear 8.Housing plate 6 is positioned at the bottom of transition axis 7, and the bottom of output shaft 5 is provided with bearing gland 4.

Gearshift 11 comprises two duplex position cylinders, and cylinder is hydraulic pressure or pneumatic cylinders, the stationarity of entire mechanism when having guaranteed gearshift.Gearshift 11 is provided with the handle that stretches out casing 10, convenient gearshift.

Input gear 1 and the sliding gear 8 same numbers of teeth.

Transition gear I9 and the same number of teeth of transition gear II13.

Working principle of the present utility model:

When the cylinder inner carrier of gearshift 11 is in first station, input gear 1 and internal gear engagement, sliding gear 8 does not mesh with transition gear II3, the motor input shaft drives output shaft 4 output speeds that are connected with spline housing 2 keys by input gear 1, and the speed ratio of output speed and input speed equals 1; When the cylinder inner carrier of gearshift 11 is in second station, spline housing 2 breaks away from input gear 1, the motor input shaft drives transition gear I9 by input gear 1 and rotates, the transition axis 7 that transition gear I9 drives key connection with it rotates, and then the sliding gear that is connected with transition axis 7 keys of drive 8 rotates, and finally drives the output shaft 4 output slow-speed of revolution by the transition gear II3 with sliding gear 8 engagements.

Though above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.

Claims

1. novel two-speed gearbox, it comprises casing, output shaft is housed in the described casing and is fixed in input gear on the motor input shaft, the axis of described output shaft and motor input shaft is on same straight line; It is characterized in that, being with on the described output shaft can be along its body that moves up and down and transition gear II, described body be provided with can with the internal gear of input gear engagement, described input gear also meshes with transition gear I, described transition gear I is installed on the transition axis, being with on the described transition axis can be along its sliding gear emchanism that moves up and down, described sliding gear emchanism comprise can with the sliding gear of transition gear II engagement and with the axle sleeve of sliding gear one, described axle sleeve links to each other with body, and described sliding gear emchanism is fixed on the gearshift.

2. novel two-speed gearbox according to claim 1 is characterized in that, an end of described output shaft by bearing housing on the motor input shaft.

3. novel two-speed gearbox according to claim 1 is characterized in that, the outside of described body is provided with boss, the outside of described axle sleeve be provided with can the holding boss groove.

4. novel two-speed gearbox according to claim 1 is characterized in that, described body is spline housing, and output shaft and transition axis are splined shaft.

5. novel two-speed gearbox according to claim 1 is characterized in that, described gearshift comprises two duplex position cylinders, and described cylinder is hydraulic pressure or pneumatic cylinders.

6. novel two-speed gearbox according to claim 1 is characterized in that, described input gear and the same number of teeth of sliding gear.

7. novel two-speed gearbox according to claim 1 is characterized in that, described transition gear I and the same number of teeth of transition gear II.