CN201507634U

CN201507634U - Gap eliminating gear combination

Info

Publication number: CN201507634U
Application number: CN2009201286814U
Authority: CN
Inventors: 王勇
Original assignee: Chongqing Qingping Machinery Factory
Current assignee: Chongqing Qingping Machinery Factory
Priority date: 2009-08-28
Filing date: 2009-08-28
Publication date: 2010-06-16
Anticipated expiration: 2019-08-28

Abstract

The utility model discloses a gap eliminating gear combination, wherein a limiting post (4) is arranged on a driven gear (1), the limiting post (4) penetrates through a ring-shaped slot (1b) and extends into a limiting hole (2a) arranged on the end surface of an auxiliary gear (2), the limiting hole (2a) diameter is bigger than the diameter of the limiting post (4), an opened ring-shaped plate spring (5) is installed in a ring-shaped slot (1b), two ends of the ring-shaped plate spring (5) are respectively supported on a locating post (3) and the limiting post (4), and one circlip (6) is arranged corresponding opened ring slots on the outer periphery of a central sleeve (1a) and the inner periphery of the auxiliary gear (2). The gap eliminating gear combination has stable movable balance and excellent stability, and is suitable for high speed operation. Gaps between the driven gear and the auxiliary gear are consistent, the driven gear and the auxiliary gear are rotated in high speed and can not fall easily, the gap adjustment in meshing is reliable, the assembly is easier, the ring-shaped slot is completely sealed, none pollutants can enter, the service life is prolonged, the driving is balanced, the noise is low, the driving efficiency is high, and the demands on gear part manufacture precision is lowered.

Description

The gap Gear combination disappears

Technical field

The utility model belongs to a kind of Gear combination, specifically, is the Gear combination of eliminating the gap in a kind of engagement.

Background technique

In the conventional gears transmission, a pair of intermeshed gear because between gapped, noise can appear in transmission process, vibrate.Eliminate noise, improve transmission efficiency, have only the raising accuracy of gear, reduce the sideshake between the gear, but the difficulty of processing increasing increases manufacture cost greatly.

Mode commonly used at present is: be with an equipment gear on the outward extending central sleeve in driven gear middle part, drive circular groove on driven gear and the equipment gear opposing end faces.Driven gear and equipment gear end face are respectively installed a locating stud, two locating stud outer ends all are positioned at circular groove, circular groove is equipped with spiral cylinder and draws spring, both ends of the spring colludes respectively on two locating studs, and driven gear and equipment gear link together by bolt, and the tooth and the equipment gear of driven gear stagger, certain phase difference is arranged, extension spring during engagement, equipment gear and driven gear mesh with driving gear together, have eliminated the gap under the effect of spring.It is big that this kind structure has been improved rotational noise, and the shortcoming that transmission speed is low also has following defective simultaneously: because employing is that cylinder draws spring, the total stationarity is relatively poor, and dynamic balancing is poor, is not suitable for running up; After the bolton, it is monolateral stressed that impacting force becomes, and the gap of driven gear and equipment gear is inhomogeneous, and high-speed motion easily comes off, and bolton too tightly can't be transferred the gap of gear engagement again, and too pine can't be fixed; Two gears are just by the spring adjust the play, and the adjust the play scope is unfixing; Spring groove does not seal, and easily piles up booty.

The model utility content

Technical problem to be solved in the utility model is to provide a kind of gap Gear combination that disappears that is fit to run up.

The technical solution of the utility model is as follows: a kind of gap Gear combination that disappears, the formation central sleeve stretches out in the middle part of the driven gear, be with equipment gear on this central sleeve, described driven gear has circular groove on the end face of equipment gear, described equipment gear is inserted with locating column on the end face of driven gear, this locating column outer end is positioned at circular groove, its key is: described driven gear is provided with limited post, this limited post passes circular groove and stretches in the spacing hole of being opened on the equipment gear end face, this spacing hole diameter is greater than the diameter of limited post, described limited post can side-to-side movement in spacing hole, ring segment spring with opening is housed in the described circular groove, and this ring segment both ends of the spring is against respectively on locating column and the limited post; In the relative annular groove of opening of described central sleeve outer peripheral surface same jump ring is housed with the equipment gear inner peripheral surface.When driven gear does not mesh with driving gear, make the external tooth of driven gear external tooth and the equipment gear certain position that staggers by the ring segment spring action.Limited post stretches into the equipment gear positioning hole for the locating stud lengthening that was arranged on the driven gear end face in the past passes circular groove, what of staggered positions are transferred the crack scope by limited post in spacing hole diameter difference control, limited post is a central motion with the driven gear center of circle, transfers the crack more reliable, easier assembling.When driven gear and driving gear engagement, equipment gear meshes with driving gear simultaneously with driven gear, eliminates the gap.Adopt the flat spring design in the such scheme, dynamic balancing is stable, and stationarity is good, is fit to run up; Adopt jump ring fixedly driven gear and equipment gear, make gap unanimity between two gears, the difficult drop-off that runs up, and also driven gear and equipment gear accent crack are freely.

Above-mentioned equipment gear is the peripheral step surface that is lower than the middle part over against the end face of driven gear, and described circular groove is over against equipment gear middle part end face, and described driven gear is higher than the middle part over against the end face periphery of equipment gear and adapts with the equipment gear step surface.

With the circular groove sealing, do not have booty and enter completely.

Above-mentioned ring segment both ends of the spring all has the breach of circular arc, and locating column and limited post lay respectively in the breach of ring segment both ends of the spring and offset with the ring segment spring.Assembling is easy, and difficult drop-off.

Beneficial effect: the utility model dynamic balancing is stable, and stationarity is good, is fit to run up; The gap is consistent between driven gear and the equipment gear, and difficult drop-off runs up; Transfer the crack reliable during engagement, easier assembling; Completely with circular groove sealing, do not have booty and enter and improve working life; The transmission balance, noise is low, and the transmission efficiency height has reduced the requirement of tooth portion machining accuracy.

Description of drawings

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

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

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

Fig. 4 is the C-C sectional view of Fig. 3.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of gap Gear combination that disappears of the utility model, driven gear 1 middle part stretches out and forms central sleeve 1a, be with equipment gear 2 on this central sleeve 1a, described driven gear 1 over against with the end face of equipment gear 2 on have circular groove 1b, described equipment gear 2 is inserted with locating column 3 on the end face of driven gear 1, these locating column 3 outer ends are positioned at circular groove 1b, described driven gear 1 is provided with limited post 4, this limited post 4 and driven gear 1 axis parallel, described limited post 4 passes circular groove 1b and stretches in the spacing hole 2a that is opened on equipment gear 2 end faces, described limited post 4 can side-to-side movement in spacing hole 2a, ring segment spring 5 with opening is housed in the described circular groove 1b, described ring segment spring 5 two ends all have the breach of circular arc, and locating column 3 and limited post 4 lay respectively in the breach at ring segment spring 5 two ends and offset with ring segment spring 5.Central sleeve 1a outer peripheral surface has annular groove, equipment gear 2 inner peripheral surfaces have annular groove, in the annular chamber of a closure of the relative formation of the annular groove opening of the annular groove of central sleeve 1a and equipment gear 2, described central sleeve 1a outer peripheral surface and the relative annular groove of opening of equipment gear 2 inner peripheral surfaces same jump ring 6 is housed.Described equipment gear 2 is the peripheral step surface that is lower than the middle part over against the end face of driven gear 1, described circular groove 1b is over against equipment gear 2 middle part end faces, described driven gear 1 is higher than the middle part and adapts with equipment gear 2 step surfaces over against the end face periphery of equipment gear 2, iron pin that engagement produces and rubbish etc. can not directly enter in the circular groove 1b from the slit of driven gear 1 with equipment gear 2 outer rings.

Claims

1. gap Gear combination that disappears, driven gear (1) middle part stretches out and forms central sleeve (1a), be with equipment gear (2) on this central sleeve (1a), described driven gear (1) has circular groove (1b) on the end face of equipment gear (2), described equipment gear (2) is inserted with locating column (3) on the end face of driven gear (1), this locating column (3) outer end is positioned at circular groove (1b), it is characterized in that: described driven gear (1) is provided with limited post (4), this limited post (4) passes circular groove (1b) and stretches in the spacing hole of being opened on equipment gear (2) end face (2a), this spacing hole (2a) diameter is greater than the diameter of limited post (4), described limited post (4) can side-to-side movement in spacing hole (2a), ring segment spring (5) with opening is housed in the described circular groove (1b), and these ring segment spring (5) two ends are against respectively on locating column (3) and the limited post (4); In described central sleeve (1a) outer peripheral surface and the relative annular groove of opening of equipment gear (2) inner peripheral surface same jump ring (6) is housed.

2. according to the described gap Gear combination that disappears of claim 1, it is characterized in that: described equipment gear (2) is the peripheral step surface that is lower than the middle part over against the end face of driven gear (1), described circular groove (1b) is over against equipment gear (2) middle part end face, and described driven gear (1) is higher than the middle part over against the end face periphery of equipment gear (2) and adapts with equipment gear (2) step surface.

3. according to the described gap Gear combination that disappears of right claim 1, it is characterized in that: described ring segment spring (5) two ends all have the breach of circular arc, and locating column (3) and limited post (4) lay respectively in the breach at ring segment spring (5) two ends and offset with ring segment spring (5).