CN200953724Y

CN200953724Y - Knife seat and bearing seat on the main shaft of the rotary tiller

Info

Publication number: CN200953724Y
Application number: CN 200620106924
Authority: CN
Inventors: 揭昕
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-16
Filing date: 2006-08-16
Publication date: 2007-10-03
Anticipated expiration: 2016-08-16

Abstract

The utility model relates to a knife holder and a bearing seat on a main shaft of a rotary cultivator, wherein the outer edge of the bearing seat is provided with a groove, and a protective sleeve is arranged in the groove, so that silt and weeds can be effectively prevented from entering the bearing seat to damage a sealing ring and a bearing; the splayed skirt is arranged at the lower end of the tool apron for mounting the rotary blade, so that the strength of the welding position of the tool apron and the main shaft is greatly improved, the welding stress concentration at the position is avoided, and the defect that the welding position of the lower end of the tool apron and the main shaft is easy to break when the stress is large is overcome.

Description

Tool rest on the rotovator main shaft and bearing block

Technical field

The utility model relates to the parts of a kind of farmland rotovator, tool rest and bearing block on particularly a kind of rotovator main shaft.

Background technology

Rotovator is the main agricultural machinery in smooth farmland, and the main shaft 1 of rotovator inserts bearing block 5, is installed on the bearing wherein; Rotary blade 4 is fastened on the tool rest 3, and tool rest 3 is welded on the

main shaft

1, and 1 rotation of drive 2 drive shaft drives rotary blade 4 smooth agricultural land soils.During operation, rotary blade and tool rest are stressed bigger, and the lower end of traditional tool rest is narrower, rupture easily with the weld of main shaft; The outer rim of traditional bearing seat is a light face arc, and protective jacket is installed in inconvenience, and silt and weeds very easily enter bearing block from the rolling gap between main shaft and the bearing block, damages sealing ring and bearing.

Summary of the invention

The technical problems to be solved in the utility model provides and a kind ofly improves tool rest skirt section intensity and prevent that silt and weeds from entering tool rest and the bearing block on the rotovator main shaft of bearing block.

For solving the problems of the technologies described above, the technical solution of the utility model is: tool rest and bearing block on a kind of rotovator main shaft, and the outer rim of its bearing block is provided with groove, and protective jacket is housed therein, can prevent effectively that silt and weeds from entering bearing block; Be provided with the splayed skirt section in order to the tool rest lower end that rotary blade is installed, improved the intensity of the weld of tool rest and main shaft greatly, avoid the welding stress at this place to concentrate.

Compare with traditional rotovator, the beneficial effects of the utility model are:

1. the outer rim of its bearing block has increased the groove that protective jacket is installed, and can prevent effectively that silt and weeds from entering bearing block, damages sealing ring and bearing.

2. increase the splayed skirt section in the tool rest lower end, improved the intensity of the weld of tool rest and main shaft greatly, avoided the welding stress at this place to concentrate, stressed when big, the shortcoming that the lower end of tool rest and the weld of main shaft rupture easily.

3. reduce the fault of bearing block and tool rest, improved the operation serviceability rate and the production work efficiency of rotovator, reduce maintenance cost and production cost.

Description of drawings further specifies the utility model below in conjunction with drawings and Examples.

Fig. 1 is the spindle drive schematic diagram of traditional rotovator.

Fig. 2 is traditional tool rest schematic diagram.

Fig. 3 is a tool rest structural representation of the present utility model.

Fig. 4 is the left view of Fig. 3.

Fig. 5 is the vertical view of Fig. 3.

Fig. 6 is a bearing block structure schematic diagram of the present utility model.

Fig. 7 is the transmission schematic diagram of the utility model main shaft.

Embodiment

Embodiment is shown in accompanying drawing 1-7: tool rest and bearing block on a kind of rotovator main shaft, and its main shaft 1 inserts bearing block 9, is installed on the bearing wherein; The outer rim of bearing block 9 is provided with groove 10, and protective jacket 8 is housed therein, can prevent effectively that silt and weeds from entering bearing block.The lower end of its tool rest 6 is provided with splayed skirt section 7, has improved the intensity of the weld of tool rest and main shaft greatly, avoids the welding stress at this place to concentrate, stressed when big, and the shortcoming that the lower end of tool rest and the weld of main shaft rupture easily.

Claims

1. A knife seat and a bearing seat on the main shaft of a rotary tiller. The main shaft (1) is inserted into the bearing seat (5) and installed on the bearing therein. The knife seat (3) is welded on the main shaft (1). It is characterized in that : the outer edge of the bearing seat (9) is provided with grooves (10), and the lower end of the knife seat (6) is provided with a figure-eight skirt (7).

2. The tool seat and bearing seat on the main shaft of the rotary tiller according to claim 1, characterized in that: a protective sleeve (8) is installed in the groove (10) on the outer edge of the bearing seat (9).