CN2305832Y

CN2305832Y - Rotavator without missing tilling

Info

Publication number: CN2305832Y
Application number: CN 97233670
Authority: CN
Inventors: 朱鹏华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-19
Filing date: 1997-07-19
Publication date: 1999-02-03
Anticipated expiration: 2007-07-19

Abstract

The utility model relates to a rotary cultivator without blank cultivation. The utility model comprises a transmission case and intermediate balance arms installed on slip bearing seats arranged on both sides of the transmission case, and the intermediate balance arms can rotate around the slip bearing seats; hollow branch pipes are fixed on the rear ends of the two intermediate balance arms, a lower drive housing is respectively installed on one end of each hollow branch pipe, and a lower support is fixed on the other end of each hollow branch pipe; both ends of a rotary cultivator attachment are respectively installed on the rear end of the lower drive housing and the rear end of the lower support, and a power output shaft of the transmission case drives the rotary cultivator attachment to work through gear pairs installed in the intermediate balance arms and in the lower drive housing. The utility model avoids the phenomenon of blank cultivation and has favorable stability, and the utility model can be matched with a four-wheel tractor of 12 horsepower to 20 horsepower to use.

Description

Rotavator without missing tilling

The utility model relates to the tillage implement technical field of being with rotary driven tool.

Be widely used in the rotovator of tractor with small four wheels now, it is that " the tractor with small four wheels rotovator " of ZL91231422.2 is identical that its basic structure forms still with the patent No., the weak point of this rotovator is the middle part that two support arms are positioned at rotary cultivator attachment, thereby cause seriously balking of support arm position, influence cultivating quality; And rotary cultivator attachment is cantilever position, poor stability, and service life is short.

The purpose of this utility model is that a kind of do not have plough-leaking phenomenon and the good four-wheel tractor rotovator of stability will be provided.

The utlity model has gearbox and the plain bearing housing that is fixed on the gearbox both sides, the intermediate equilibria arm that can rotate around it is installed on plain bearing housing, its design feature is to be installed with hollow arm in the rear end of intermediate equilibria arm, one end of hollow arm is installed with the underdrive case, the other end is installed with lower carriage, and the two ends of rotary cultivator attachment are installed in the rear end of underdrive case and lower carriage respectively.In the hollow arm between underdrive case and intermediate equilibria arm power transmission shaft is installed, the power take-off of gearbox drives the power transmission shaft rotation by the gear pair that is installed in the intermediate equilibria arm, and power transmission shaft drives the rotary cultivator attachment rotation by the gear pair that is installed in the underdrive case again.

Intermediate equilibria arm of the present utility model and underdrive case are enclosed construction.The end of its hollow arm is connected by bolt with lower carriage with the underdrive case.

The utility model is compared with rotovator with existing tractor with small four wheels, has following tangible advantage: the one, owing to rotary cultivator attachment is installed between underdrive case and the lower carriage, thereby eliminated plough-leaking phenomenon, and improved cultivating quality greatly; The 2nd, intermediate equilibria arm, hollow arm, underdrive case and lower carriage and rotary cultivator attachment are formed frame structure, have improved rigidity, the stability of complete machine, use reliably, and the life-span is long, and is easy to maintenance; The 3rd, intermediate supports arm, underdrive case etc. all adopts enclosed construction, the angle of underdrive case, lower carriage and intermediate equilibria arm can be regulated, thereby can with multiple model tractor, satisfy multiple agriculture requirements such as the stubble-cleaning in paddy field, nonirrigated farmland, whole ground, intertillage, applied widely.

Below in conjunction with drawings and Examples, structure of the present utility model and operation principle are further described:

Fig. 1 is a vertical view of the present utility model;

Fig. 2 is the right view of Fig. 1;

Fig. 3 is that the utility model is installed in the vertical view on the tractor;

Fig. 4 is that the utility model is installed in the end view on the tractor.

In the embodiment that accompanying drawing provides, gearbox 1 is fixedly mounted on the back of gear box of tractor, respectively is installed with a plain bearing housing 3 in the both sides of gearbox 1, and the front end of intermediate equilibria arm 2 is installed on the plain bearing housing 3 and can rotates around it.The rear end of intermediate equilibria arm 2 is installed with hollow arm 5, and hollow arm 5 is made of for three sections left, center, right, respectively by being bolted on the intermediate equilibria arm 2.End at the hollow arm 5 of right section is equipped with underdrive case 7 by bolt, and the end of the hollow arm 5 of left side section is equipped with lower carriage 8 by bolt, and the two ends of rotary cultivator attachment 9 are installed in the rear end of underdrive case 7 and lower carriage 8 respectively by bearing.Underdrive case 7 and lower carriage 8 can change by the position of synchronous adjustment stud bolt hole with the angle of intermediate equilibria arm 2, to adapt to different agriculture requirements.By bearing the power transmission shaft 6 that gear is equipped with at two ends is installed in the right hollow arm 5 between underdrive case 7 and this side intermediate equilibria arm 2, the power take-off of gearbox 1 extend in this side intermediate equilibria arm 2 and gear is housed, drive power transmission shaft 6 rotations by the gear pair 4 that is installed in the intermediate equilibria arm 2, power transmission shaft 6 drives rotary cultivator attachment 9 rotary works by the gear pair 11 that is installed in the underdrive case 7 again.Intermediate equilibria arm 2, hollow arm 5 and underdrive case 7 are enclosed construction, to adapt to paddy-field-working, to be welded with the lifting ear above the two intermediate equilibria arms 2, in order to be connected with the tractor lift arm.On underdrive case 7 and lower carriage 8, be fixed with rotary cultivator attachment protective cover 10.

Claims

1, a kind of Rotavator without missing tilling, have gearbox (1) and be fixed on the plain bearing housing (3) of gearbox (1) both sides, the intermediate equilibria arm (2) that can rotate around it is installed on plain bearing housing (3), it is characterized in that: be installed with hollow arm (5) in the rear end of intermediate equilibria arm (2), one end of hollow arm (5) is installed with underdrive case (7), the other end is installed with lower carriage (8), the two ends of rotary cultivator attachment (9) are installed in the rear end of underdrive case (7) and lower carriage (8) respectively, in the hollow arm (5) between underdrive case (7) and intermediate equilibria arm (2) power transmission shaft (6) is installed, the power take-off of gearbox (1) drives power transmission shaft (6) rotation by the gear pair (4) that is installed in the intermediate equilibria arm, and power transmission shaft (6) drives rotary cultivator attachment (9) rotation by the gear pair (11) that is installed in the underdrive case (7).

2, Rotavator without missing tilling according to claim 1 is characterized in that intermediate equilibria arm (2) and underdrive case (7) are enclosed construction.

3, Rotavator without missing tilling according to claim 1 is characterized in that being connected by bolt between hollow arm (5) end and underdrive case (7) and lower carriage (8).