CN201963749U

CN201963749U - Bearing locking structure

Info

Publication number: CN201963749U
Application number: CN2010202913420U
Authority: CN
Inventors: 陈伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-06
Filing date: 2010-08-06
Publication date: 2011-09-07
Anticipated expiration: 2020-08-06

Abstract

The utility model relates to a bearing locking structure, which is used for locking a bearing on an output shaft of a stone cutting machine and comprises a locking pressing plate with a fall double-lug design; a bolt on a reduction box is utilized to hold down double lugs of the locking pressing plate, and thereby, the bearing is locked by the locking pressing plate; simultaneously, the long screw thread fit of the bolt on the reduction box and an elastic washer are applied to perform the anti-loosing action of the bearing, and thereby, the product performance is improved. Moreover, the bearing locking structure has the characteristics of convenience in maintenance and reliability in operation.

Description

Bearing locking structure

Affiliated technical field

The present invention relates to a kind of locking mechanism of bearing, specifically refer to the locking mechanism of makita 4100NH output shaft upper bearing (metal).

Background technique

Bearing locking structure in the present makita 4100NH on the output shaft has two kinds of forms:

One, Ka Huang ﹠amp; Elastic washer locking mechanism (as Fig. 3), this structure makes elastic washer 32 produce elastic force by jump ring 33, and uses this elastic force that the bearing on the output shaft 35 34 is lock onto in the bearing chamber 31.

Two, nut check structure (as Fig. 4), this structure are passed through the screw-thread fit of nut 41 (Fig. 5 is the nut stereogram for this reason) and bearing chamber 42 with in 43 lockings of the bearing on the output shaft 44 and the bearing chamber 42.

Yet not enough below in the application of reality, finding:

1. Ka Huang ﹠amp; The elastic washer locking mechanism because its coupling mechanism force derives from the elastic force of elastic washer, is added the influences such as vibration of product in using, and causes coupling mechanism force for bearing not enough and have influence on product performance.

2. nut check mechanism, this structure is unclamped in the use in order to increase coupling mechanism force and to prevent, can use bigger coupling mechanism force in the production or in screw-thread fit, add glue, such mode makes the maintenance man be difficult to by the draw-in groove on the locking nut (as Fig. 5) locking nut be back-outed, and has increased the difficulty of product maintenance.

Summary of the invention

In order to overcome above-mentioned deficiency, the utility model provides a kind of novel bearing locking structure, can still can keep in repair easily under the coupling mechanism force enough to the bearing generation and effective locking situation.

The technological scheme that its technical problem that solves the utility model adopts is: as Fig. 1, by the screw 14 between locking bearing chamber 12 and the speed reducer 16 and speed reducer 16 and last screw 18, screw 18 is pressed on the drop ears 21 of locking pressure plate 15 (as Fig. 2), thereby make locking pressure plate 15 be pressed in locking bearing 13 on the outer ring of bearing 13, add elastic washer 17 by the long screw-thread fit between screw 18 and the speed reducer 16 simultaneously, prevent the loosening of locking pressure plate 15.

The beneficial effects of the utility model are to unclamp the performance of raising product, convenient for maintaining personnel maintenance simultaneously in can also effectively preventing to use to the additional bigger coupling mechanism force of makita 4100NH output shaft upper bearing (metal).

Description of drawings

Fig. 1 is a structural representation of the invention process.

Fig. 2 is the perspective view of locking pressure plate among Fig. 1.

Fig. 3 is existing Ka Huang ﹠amp; The structural representation of elastic washer locking mechanism.

Fig. 4 is the structural representation of existing nut check structure.

Fig. 5 is the perspective view of locking nut among Fig. 4.

Embodiment

Be described further below in conjunction with accompanying drawing embodiment of the present utility model.

As Fig. 1, the bearing chamber 12 of earlier bearing 13 being packed into, then pressing plate 15 is placed on the bearing 13, after in speed reducer 16 that bearing chamber 12 is packed into, lock screw 14 is fixed in bearing chamber 12 on the speed reducer 16, and lock screw 18 and pad are gone up elastic washer 17 then, make screw press on the ears of locking pressure plate 15 (as Fig. 2), make locking pressure plate 15 press on the outer ring of bearing 13, thereby locking bearing 13 is in bearing chamber 12.

Claims

1. bearing locking structure comprises:

Locking pressure plate with drop ears structure is positioned on the bearing;

Screw is pressed on the drop ears of locking pressure plate;

It is characterized in that,

The locking pressure plate of locking bearing is used screw lock, adds elastic washer by the long screw-thread fit between screw and the speed reducer, prevents the loosening of locking pressure plate.