CN2774739Y

CN2774739Y - Stirring shaft gear driving device for concrete stirrer

Info

Publication number: CN2774739Y
Application number: CN 200520030000
Authority: CN
Inventors: 安中遂
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-04
Filing date: 2005-02-04
Publication date: 2006-04-26
Anticipated expiration: 2015-02-04

Abstract

The utility model discloses a stirring shaft and gear wheel driving device for a concrete stirrer. The utility model comprises two same driving gear wheels on two stirring shafts of the concrete stirrers, a drive gear wheel which is penetrated through an output shaft of a speed reduction box and a carrier gear wheel which is engaged with the drive gear wheel. The drive gear wheel and the carrier gear wheel are respectively engaged and driven with two driving gear wheels on the stirring shafts. The number of teeth of the drive gear wheel is smaller than the number of teeth of the carrier gear wheel. The utility model selects the drive gear wheel with less tooth number and the carrier gear wheel with more tooth number, discards the past lagging method that the space between the stirring shafts is satisfied by singly enlarging the diameter of the gear wheel, flexibly utilizes the gear wheel with unequal tooth number to engage and drive to be matched with the standard speed reduction box and the stirring shafts with large spacing, the matching range of the gear wheel is large and the cost is reduced. The power of the speed reduction box required by the drive gear wheel with less tooth number is small, and thus the utility model has low manufacturing cost and low energy consumption.

Description

The shaft gear drive of concrete mixer

Technical field

The utility model relates to construction machinery equipment, particularly a kind of shaft gear drive of concrete mixer.

Background technology

The shaft of the JS series concrete mixer of whole nation building machinery industry all uses motor to rotate through gear reduction box deceleration rear drive shaft.Shaft is generally two, need to guarantee that two shafts can constant speed rotate and switched in opposite, present employed transmission device has two kinds, a kind of reduction box of two motors by separately that be to use drives two shafts respectively, such structure need be with two motors and two supporting reduction boxes, and cost is quite high; Another kind is with reduction box of a driven by motor, the power output shaft of reduction box drives principal and subordinate's gear train rotation that one group of number of teeth equates and meshes, two gears of this principal and subordinate's gear train again respectively with shaft on travelling gear engagement, to realize the constant speed transmission of switched in opposite, when the spacing of two shafts is big, for realizing that engagement just needs the diameter of number of teeth principal and subordinate's gear trains such as two of corresponding increasings, gear diameter increases, must strengthen the power of reduction box again, so just cause the cost of reduction box and travelling gear to improve, energy consumption increases.

The utility model content

The purpose of this utility model is to provide a kind of shaft gear drive of concrete mixer, and the shaft and the gear cost that can drive, be fit to various spacings with the small-power reduction box are lower.

The technical solution of the utility model is: a kind of shaft gear drive of concrete mixer, comprise two identical travelling gears on two shafts on the concrete mixer, and the driving gear that wears on the output shaft of reduction box and with Jie's gear of driving gear engagement, initiatively, Jie's gear respectively with shaft on two travelling gear engaged transmission, the number of teeth of described driving gear is less than the number of teeth of Jie's gear.

The support set of the gear of giving an account of by the non-transmission of bearing be loaded on the jackshaft of reduction box, Jie's gear is fixed on by its centre bore on the outer ring of bearing, the inner ring of bearing is fixedly set on the reduction box jackshaft.

The transmission to two shafts of mixer time of the gear drive that the utility model utilizes driving gear, Jie's gear, two shaft travelling gears to be constituted, the power output shaft of realizing reduction box.Different with the driving and driven gear of the number of teeth engagements of using such as two in the past, the utility model is chosen the driving gear and the bigger Jie's gear of the number of teeth of the less number of teeth, can satisfy the constant speed backward rotation of shaft equally according to the certain gear ratio relation, discard simple in the past dependence and increased the behindhand type that gear diameter satisfies the shaft spacing, the meshed transmission gear that the number of teeth of applying in a flexible way does not wait is come matching standard reduction box and big spacing shaft, the apolegamy scope of gear is bigger, therefore required gear installation accessories is also more reasonable accordingly, and cost is reduced.The modulus of standard meshing gear equates in addition, and the diameter of the driving gear of the less number of teeth is less, and the power of required reduction box is less, so cost is lower, and energy consumption is less.

Description of drawings

Fig. 1 is the assembly structure schematic diagram of the utility model on mixer;

Fig. 2 is a structural representation of the present utility model.

The specific embodiment

As shown in Figure 1 and Figure 2, mixing drum 11 has two

shafts

12,13, and

shaft

12,13 connects

mixing arm

14,15 respectively.Motor 1 is in transmission connection by the power input shaft 3 of driving-belt and three common reduction boxes 2, three reduction boxes 2 also have power output shaft 4 and jackshaft 5, driving gear 6 fixedly is located on the power output shaft 4 by its centre bore, and power output shaft 4 rotates synchronously with driving gear 6; The inner ring of bearing 7 is fixedly set on the jackshaft 5, and Jie's gear 8 fixedly is located in by its centre bore on the outer ring of bearing 7, jackshaft 5 and the 8 asynchronous rotations of Jie's gear; The number of teeth of driving gear 6 is less than the number of teeth of Jie's gear 8.Shaft travelling gear 9 engaged transmission of driving gear 6 and its top, shaft travelling gear 9 wears by its centre bore and is fixed on the shaft 12; Shaft travelling gear 10 engaged transmission of Jie's gear 8 and its top, shaft travelling gear 10 fixedly is located on the shaft 13 by its centre bore.

In real work, the power output shaft 4 that starts 1, three reduction box 2 of motor drives driving gear 6 and rotates synchronously, and driving gear 6 drives shaft 12 rotation works by the shaft travelling gear 9 with its engagement; Because Jie's gear 8 is to be socketed on the jackshaft 5 by bearing 7, in rotation, jackshaft 5 is only played a supporting role to Jie's gear 8, Jie's gear 8 is still by driving gear 6 engagements and drives, Jie's gear 8 is by driving shaft 13 rotation works with the shaft travelling gear 10 that plays engagement, according to the gear drive principle, two turning to of

shaft

12,13 are relative.

Claims

1, a kind of shaft gear drive of concrete mixer, comprise two identical travelling gears on two shafts on the concrete mixer, and the driving gear that wears on the output shaft of reduction box and with Jie's gear of driving gear engagement, initiatively, Jie's gear respectively with shaft on two travelling gear engaged transmission, it is characterized in that: the number of teeth of described driving gear is less than the number of teeth of Jie's gear.

2, transmission device according to claim 1, it is characterized in that: the support set of the gear of giving an account of by the non-transmission of bearing be loaded on the jackshaft of reduction box, Jie's gear is fixed on by its centre bore on the outer ring of bearing, and the inner ring of bearing is fixedly set on the reduction box jackshaft.