CN2455559Y

CN2455559Y - Low friction separate steering and braking mechanism for rice and wheat harvester

Info

Publication number: CN2455559Y
Application number: CN 00266147
Authority: CN
Inventors: 涂久裕; 郭最润
Original assignee: NANCHANG GEAR WHEELS FACTORY
Current assignee: NANCHANG GEAR WHEELS FACTORY
Priority date: 2000-12-29
Filing date: 2000-12-29
Publication date: 2001-10-24
Anticipated expiration: 2010-12-29

Abstract

The utility model relates to a steering and braking mechanism particularly relating to a low friction separation steering and braking mechanism for rice and wheat harvesters; a separation bearing in the utility model is sheathed on a steering shaft sleeve connected with a steering gear; when a steering shifting fork shifts the separation bearing, intensive friction can not be generated; thus, the service life of the steering shifting fork is prolonged and the work stability of the steering and braking mechanism is improved. The utility model is suitable for rice and wheat harvesters, various tractors and some engineering vehicles.

Description

The low abrasion of harvester for both rice and wheat separates braking in a turn mechanism

The utility model relates to a kind of braking in a turn mechanism, relates in particular to the low abrasion of a kind of harvester for both rice and wheat and separates braking in a turn mechanism.

In the employed braking in a turn of existing harvester for both rice and wheat mechanism, when steering clutch is thrown off, adopt mostly to turn to shift fork to stir the mode of steering gear, but when stirring, if steering clutch is not thrown off as yet fully, at this moment power does not cut off as yet, this just means, turn to the metal flat of shift fork and high speed revolution to produce violent friction, like this, long-term turn to work, making turns to shift fork easy to wear, therefore, turn to shift fork to be easy to abrasion, service life is short.

The purpose of this utility model is to provide a kind of harvester for both rice and wheat that turns to shift fork service life that can improve not have abrasion and separate braking in a turn mechanism.

The technical solution of the utility model is: the low abrasion of this harvester for both rice and wheat separates braking in a turn mechanism, comprise central driver gear, steering gear, braking in a turn axle, turn to shift fork and drg, central driver gear and steering gear cooperate with the tooth cover, constitute steering clutch, central driver gear and steering gear are installed on the braking in a turn axle, steering gear links to each other with steering column jacket, steering column jacket and lining socket-connect, lining is sleeved on the braking in a turn axle, it is characterized by: on the steering column jacket that release thrust bearing is sleeved on steering gear links to each other.

In the utility model, when turning to, turn to shift fork to stir release thrust bearing, when stirring, even power does not cut off, be that steering gear is just at high speed revolution, because the effect of ball turns to the face that is struck of shift fork and release thrust bearing also can not produce violent friction, like this in the release thrust bearing, just can improve widely the service life that turns to shift fork, and make that the serviceability of braking in a turn mechanism is more stable; The utility model is applicable to various from walking the endless-track type rice wheat harvester, also is used for various types of trac.s and some construction engines as can be known.

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

Fig. 1 is the utility model schematic appearance;

Fig. 2 is that the utility model is along axis longitudinal cross-section scheme drawing.

According to Fig. 1 and Fig. 2, the low abrasion of this harvester for both rice and wheat separates braking in a turn mechanism, comprise and turn to shift fork 5, braking in a turn axle 1, central driver gear 2, steering gear 4 and drg 6, central driver gear 2 and steering gear 4 cooperate with the tooth cover, constitute steering clutch 3, central driver gear 2 and steering gear 4 are installed on the braking in a turn axle 1; Release thrust bearing 7 is sleeved on the steering column jacket 8 that links to each other with steering gear 4, steering column jacket 8 socket-connects with lining 9, lining 9 is sleeved on the braking in a turn axle 1, movable friction plate 10 is installed on the steering column jacket 8, be equipped with in the drg 6 and decide friction lining 61 and retracing spring 62, retracing spring 62 is enclosed within on the braking in a turn axle 1 and withstands steering column jacket 8, central driver gear 2 obtains power by power transmission mechanism, the steering gear 4 that drives the left side and the right rotates, the steering gear 4 on the left side and the right reaches power the drive wheel on the left side and the right respectively, makes the harvester for both rice and wheat walking.

The process that turns to is as follows: that now supposes among Fig. 1 the right turns to shift fork 5 by rotating as the figure direction, the shift fork 5 that turns on the right promotes the release thrust bearing 7 on the right, thereby the steering gear 4 that drives the limit of turning right moves axially, the steering gear 4 on the right is separated with central driver gear 2 teeth cover, promptly, make the steering clutch 3 on the right throw off, thereby cut off the power of the steering gear 4 that reaches the right, the steering gear 4 on the right and release thrust bearing 7 continue mobile backward and make movable friction plate 10 and decide friction lining 61 to compress mutually, the drive wheel on the right is stopped operating, and harvester for both rice and wheat turns to; Equally, if the shift fork 5 of turning on the left side promotes the release thrust bearing 7 on the left sides, can make the harvester for both rice and wheat left-handed turning to; When turning to shift fork 5 to throw off release thrust bearing 7, steering gear 4 moves to central driver gear 2 because of the elastic force effect of retracing spring 62 in the drg 6, and steering clutch 3 is closed again, makes this steering gear 4 obtain power, and corresponding driving is rotated.

Claims

1, the low abrasion of a kind of harvester for both rice and wheat separates braking in a turn mechanism, comprise central driver gear, steering gear, braking in a turn axle, turn to shift fork and drg, central driver gear and steering gear cooperate with the tooth cover, constitute steering clutch, central driver gear and steering gear are installed on the braking in a turn axle, steering gear links to each other with steering column jacket, steering column jacket and lining socket-connect, lining is sleeved on the braking in a turn axle, it is characterized by: release thrust bearing (7) is sleeved on the steering column jacket (8) that links to each other with steering gear (4).