CN202251691U

CN202251691U - Speed-up type speed changing box

Info

Publication number: CN202251691U
Application number: CN2011203394755U
Authority: CN
Inventors: 黄必良; 龚亮亮; 刘杰; 蒋全琴
Original assignee: JIANGYIN KEWEI GEARBOXES MANUFACTURE CO Ltd
Current assignee: JIANGYIN KEWEI GEARBOXES MANUFACTURE CO Ltd
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-05-30
Anticipated expiration: 2021-09-08

Abstract

The utility model discloses a speed-up type speed changing box comprising a shell, wherein a helical gear, an input shaft and an output shaft are arranged on the shell; a support plate is arranged inside the shell; the axes of the input shaft and the output shaft coincide; the input shaft is arranged between a front cover and the support plate of the shell by a bearing; the output shaft is arranged between a rear cover and the support plate of the shell by another bearing; more than two intermediate shafts are uniformly distributed at the periphery of the input shaft and the output shaft; the intermediate shafts are parallel to the input shaft and the output shaft and arranged between the front cover and the rear cover of the shell by bearings; the input shaft is fixedly provided with an input helical gear; the output shaft is fixedly provided with an output helical gear; each intermediate shaft is fixedly provided with an input intermediate helical gear and an output intermediate helical gear which are respectively meshed with the input helical gear and the output helical gear; both the input shaft and the output shaft are hollow shafts; and the inner wall of each hollow shaft is provided with a spline slot. The speed changing box is simple in structure and large in transmitted torque; the assembly can be finished by once positioning; and the assembly precision is high.

Description

A kind of speedup shape gearbox

Technical field

The utility model relates to gearbox, is specifically related to a kind of speedup shape gearbox.

Background technique

Gearbox is a kind of power transmitting deice commonly used, and is in different applications, different to the running parameter requirement of gearbox.Common gearbox, power input shaft and output shaft disalignment, bearing receives very big lateral force during work, and easy abrasion is aging, and especially for speed-increasing transmission, because rotating speed is high, vibrations are big, and noise is big, and working life is short.

The model utility content

The purpose of the utility model is to overcome the defective that exists in the existing technology, provide a kind of simple in structure, stressed evenly, work is that noise is little, the speedup shape gearbox of long service life.

For realizing above-mentioned purpose; The technological scheme of the utility model is a kind of speedup shape gearbox of design, comprises housing, being provided with input shaft and output shaft on the said housing, in said housing, being provided with helical gear, it is characterized in that;, said shell is provided with dunnage in stopping; The dead in line of said input shaft and output shaft, said input shaft are contained in through bearing between the protecgulum and dunnage of housing, and said output shaft is contained between the bonnet and dunnage of housing through bearing; Around said input shaft and output shaft, evenly distribute jack shaft more than two, said jack shaft and input shaft, output shaft are parallel, the jack shaft of telling be contained between the protecgulum and bonnet of housing through bearing; On said input shaft, be installed with the input helical gear; On said output shaft, be installed with the output helical gear; On said jack shaft, be installed with respectively in the middle of the input with input helical gear and the engagement of output helical gear helical gear in the middle of the helical gear and output; Said input shaft and output shaft are hollow shaft, are provided with spline at the inwall of said hollow shaft.

The advantage and the beneficial effect of the utility model are: adopt after the technique scheme, this speedup shape gearbox has following advantage:

Noise is little when 1, working, long service life;

2, simple in structure, transmitting torque is big;

3, be convenient to realize integrated processing and assembling, one-time positioning is accomplished during assembling, and assembly precision is high;

4, concentricity is high, is convenient to on-the-spot the installation;

5, maintenance service is convenient.

Description of drawings

Fig. 1 is the utility model speedup deformation speed box structure schematic representation;

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

Embodiment

Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is further described.Following examples only are used for more clearly explaining the technological scheme of the utility model, and can not limit the protection domain of the utility model with this.

Like Fig. 1, shown in 2, the utility model is a kind of speedup shape gearbox, comprises housing 1, is contained in input shaft 2 and output shaft 3 on the housing 1, is contained in the helical gear in the housing 1.Be provided with dunnage 4 in the housing 1, the dead in line of input shaft 2 and output shaft 3, input shaft 2 is contained in through bearing between the protecgulum 11 and dunnage 4 of housing 1, and output shaft 3 is contained between the bonnet 12 and dunnage 4 of housing 1 through bearing; Even three jack shafts 5 that distribute around input shaft 2 and the output shaft 3, jack shaft 5 is parallel with output shaft 3 with input shaft 2, and jack shaft 5 is contained between the protecgulum 11 and bonnet 12 of housing 1 through bearing.Certainly, the quantity of jack shaft 5 also can be two or four, even more; Being installed with the input helical teeth on the input shaft 2 takes turns to; Being installed with the output helical teeth on the output shaft 3 takes turns to; Be equipped with on each jack shaft 5 respectively with the input helical teeth and take turns to and export helical gear 52 in the middle of helical teeth takes turns to and exports in the middle of the input of helical gear 21 engagements;, said input shaft and output shaft are hollow shaft, are provided with spline at the inwall of said hollow shaft.

Certainly, on the helical gear 52 engaging and disengaging gear can also be installed in the middle of helical gear 51 in the middle of the input or the output.This is the known technology of related domain, need not to give unnecessary details at this.

In the time of work; The power plant that are connected with input shaft 2 with transmission of power to the input gear 21 on; Be delivered to helical gear 52 in the middle of each jack shaft 5 and the output respectively through helical gear 51 in the middle of the input that is engaged with again, again through with output in the middle of the output helical gear 32 of helical gear 52 engagements with transmission of power to output shaft 3.

Since in the middle of each jack shaft 5 and the input in the middle of helical gear 51, the output helical gear 52 be evenly distributed on input uranium 2 and output shaft 3 around; Input shaft 2 is stressed diametrically evenly with output shaft 3; Cancel out each other, when gearbox runs up noise low, operate steadily, mechanical wear is little.In addition, because the quantity of tooth of engagement is more simultaneously, the phenomenon that gear collapses tooth occurs when can effectively avoid big carrying capacity work, it is big to be specially adapted to load variations such as wind-driven generator, the occasion that moment of torsion is big.

The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. speedup shape gearbox; Comprise housing (1), be provided with input shaft (2) and output shaft (3) on the said housing (1), in said housing (1), be provided with helical gear; It is characterized in that, in said shell is stopped (1), be provided with dunnage (4), the dead in line of said input shaft (2) and output shaft (3); Said input shaft (2) is contained in through bearing between the protecgulum (11) and dunnage (4) of housing (1), and said output shaft (3) is contained between the bonnet (12) and dunnage (4) of housing (1) through bearing; Around said input shaft (2) and output shaft (3), evenly distribute jack shaft (5) more than two, said jack shaft (5) and input shaft (2), output shaft (3) are parallel, the jack shaft of telling (5) be contained between the protecgulum (11) and bonnet (12) of housing (1) through bearing; On said input shaft (2), be installed with input helical gear (21); On said output shaft (3), be installed with output helical gear (31); On said jack shaft (5), be installed with respectively in the middle of the input with input helical gear (21) and output helical gear (31) engagement helical gear (51) and export middle helical gear (52); Said input shaft (2) and output shaft (3) are hollow shaft, are provided with spline at the inwall of said hollow shaft.