CN201241939Y

CN201241939Y - Large power two-stage parallel shaft hard tooth surface gear speed reducer

Info

Publication number: CN201241939Y
Application number: CNU2008200757666U
Authority: CN
Inventors: 杨艾淼; 王禹
Original assignee: TIANJIN SPEED REDUCER CO Ltd
Current assignee: Tianjin Baili Tianxing Transmission Co., Ltd.
Priority date: 2008-07-31
Filing date: 2008-07-31
Publication date: 2009-05-20
Anticipated expiration: 2018-07-31

Abstract

The utility model relates to a high-power two-stage parallel-shaft hardened tooth surface gear speed reducer, which comprises a box body, an input small gear shaft, an input gear, an output small gear shaft, an output gear, an output shaft and a support bearing, wherein the small gear shaft, the output small gear shaft and the output shaft are mounted in the box body in parallel, the input small gear shaft is meshed and fixed on the input gear on the output small gear shaft, the output small gear shaft is meshed and fixed on the output gear wheel on the output shaft, and the input end of the input small gear shaft and the output end of the output shaft are both equipped with oil seals. The utility model has the advantages that the rotation of each gear of an integral machine is led to be more perfectly and reasonably combined, the integral structure is more compact, and the high-power two-stage parallel-shaft hardened tooth surface gear speed reducer makes full use of limited space, which has low temperature rise, high efficiency and long service span, and provides reliable guarantee for increasing the bearing capability.

Description

High-power two-stage parallel axis hard-tooth surface gear reduction unit

Technical field

The utility model belongs to reduction gear mechanism technology for making field, particularly relates to a kind of high-power two-stage parallel axis hard-tooth surface gear reduction unit.

Background technique

Gear reduction unit in the known technology, its transmission shaft layout are triangle or are the zigzag structure, though this kind layout is comparatively compact in structure, but bearing capacity is very limited, can't realize high-power transmission, and vibration and noise are big, temperature rise is increased, and cause its working life shorter.Structural change along with fast development of market economy and modern industrialization industry, the advantage of machinery will be embodied directly on the economic benefit, because the user is progressively expanding the demand of speed reducer, be that each speed reducer manufacturer is in the face of reaching the problem that need solve so how to make speed reducer in actual production, bring into play greatest benefit.

Summary of the invention

The utility model provides a kind of and has that gear range is wide, bearing capacity is big, output torque is big, transmission efficiency is high and the high-power two-stage parallel axis hard-tooth surface gear reduction unit of long service life for solving the technical problem that exists in the known technology.

The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is: high-power two-stage parallel axis hard-tooth surface gear reduction unit, comprise casing, the input pinion shaft, the input gear, the output pinion axle, output gear, output shaft and spring bearing, it is characterized in that: in casing by the parallel input pinion shaft that is equipped with of spring bearing, output pinion axle and output shaft, input pinion shaft engagement is fixed on input gear on the output pinion axle by key joint, output pinion axle engagement is fixed on output gear on the output shaft by key joint, the input pinion shaft go into going out to hold oil sealing all being housed of end and output shaft.

The utility model can also adopt following technological scheme:

Described input pinion shaft, output pinion axle and output shaft two ends are equipped with the spacer that is used to adjust axial position.

Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, promptly importing pinion shaft, output pinion axle and output shaft installs at grade, input pinion shaft engagement is fixed on input gear on the output pinion axle by key joint, output pinion axle engagement is fixed on output gear on the output shaft by key joint, therefore can constitute each gear-driven reasonable combination of improving of complete machine, make the speed reducer overall structure more compact, make full use of limited space, temperature rise is low, efficient is high and long service life; Gear material in this speed reducer is selected 20CrMnMo for use in addition, and transmission shaft is selected the 42CrMo material for use, and tank material adopts HT250, can be the increase bearing capacity reliable assurance is provided.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that A-A of Fig. 1 is to sectional view.

Among the figure: 1, casing; 2, case lid; 3, big stifle; 4, key; 5, little lid; 6, oil drain plug; 7, oil sealing; 8, input pinion shaft; 9, spring bearing; 10, big saturating lid; 11, output pinion axle; 12, little stifle; 13, output gear; 14, input gear; 15, output shaft; 16, output shaft oil sealing; 17, spacer.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1 and Fig. 2, high-power two-stage parallel axis hard-tooth surface gear reduction unit, comprise casing 1, input pinion shaft 8, input gear 14, output pinion axle 11, output gear 13, output shaft 15 and spring bearing 9, by spring bearing 9 parallel input pinion shaft 8, output pinion axle 11 and the output shafts 15 of being equipped with, the two ends of input pinion shaft, output pinion axle and output shaft are equipped with the spacer 17 that is used to adjust axial position in casing 1.The engagement of input pinion shaft connects the input gear 14 that is fixed on the output pinion axle by key 4, the engagement of output pinion axle connects the output gear 13 that is fixed on the output shaft by key 4, the end of going into of input pinion shaft is equipped with oil sealing 7, and the end that goes out of output shaft is equipped with output shaft oil sealing 16.Above casing 1, the casing front side is provided with oil drain plug 6 and by big stifle 3 of bolton and little lid 5, the casing rear side installs big saturating lid 10 and little stifle 12 by bolton for case lid 2.Described input gear and output gear material are all selected 20CrMnMo for use, input pinion shaft, output pinion axle and output shaft material selection 42CrMo, and tank material adopts HT250, provides reliable assurance for increasing bearing capacity like this.This speed reducer compact structure rationally utilizes limited space, and the volume of speed reducer is reduced, and increases user's space availability ratio.This speed reducer is the various setting types that satisfy the user, and polytype mounting type can be arranged.

Claims

1. high-power two-stage parallel axis hard-tooth surface gear reduction unit, comprise casing, input pinion shaft, input gear, output pinion axle, output gear, output shaft and spring bearing, it is characterized in that: in casing, import pinion shaft, output pinion axle and output shaft by parallel being equipped with of spring bearing, input pinion shaft engagement is fixed on input gear on the output pinion axle by key joint, output pinion axle engagement is fixed on output gear on the output shaft by key joint, the input pinion shaft go into going out to hold oil sealing all being housed of end and output shaft.

2. high-power two-stage parallel axis hard-tooth surface gear reduction unit according to claim 1 is characterized in that: described input pinion shaft, output pinion axle and output shaft two ends are equipped with the spacer that is used to adjust axial position.