CN102150517B

CN102150517B - Oscillating motion mechanism and method for processing oscillating inclined sleeve

Info

Publication number: CN102150517B
Application number: CN 201110032452
Authority: CN
Inventors: 钟挺; 曹明珠; 张延化; 谢焕雄; 王冰; 于向涛; 顾峰玮; 田立佳; 胡良龙; 高景魁
Original assignee: Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
Current assignee: Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture
Priority date: 2011-01-28
Filing date: 2011-01-28
Publication date: 2013-03-13
Anticipated expiration: 2031-01-28
Also published as: CN102150517A

Abstract

The invention relates to a swing motion mechanism and a processing method of a swing slant sleeve, belonging to the technical field of agricultural machinery. The mechanism includes a rocker supported on the bearing seat, one end of the rocker is fixedly connected with a universal yoke, and the two forks of the universal yoke respectively support the outer ring of the rocking bearing through a symmetrical radial hinge of the pin shaft. The inner ring of the oscillating bearing is fixedly connected with the swaying slant sleeve, the outer circular axis of the swaying slant sleeve forms a sway angle with the axis of the inner hole, and the inner hole is fixedly connected with the end of the main shaft perpendicular to the rocker. When working, the mechanism can still turn the rotation of the main shaft into the reciprocating swing of the rocker through the space hinge structure, and since the end of the main shaft does not need to be provided with an elbow, the assembly and disassembly of the parts on the shaft is very convenient.

Description

A kind of oscillating motion mechanism and wave the processing method of oblique cover

Technical field

The present invention relates to a kind of motion of combine, especially a kind of oscillating motion mechanism also relates to the processing method of waving oblique cover in this mechanism simultaneously, belongs to agricultural machinery technological field.

Background technology

A kind of agricultural machinery take self-contained diesel engine as power of combine.Understand according to the applicant, for a long time, swing transmission wherein is that driving shaft is designed to elbow (referring to Fig. 1).This elbow axle is not only processed very difficult, and since the envelope external diameter of elbow part greater than the driving shaft diameter, therefore so that be difficult to install again needed other parts such as belt pulley, sprocket wheel on the axle.

Summary of the invention

The object of the invention is to: provide conveniently to be set with other part but also easily oscillating motion of processing technology mechanism on a kind of not only main shaft, provide simultaneously the processing method of waving oblique cover in this mechanism.

In order to reach above purpose, oscillating motion of the present invention mechanism comprises the rocking bar that is supported on the bearing block, one end of described rocking bar is fixed with universal fork, two prongs of described universal fork respectively by the bearing pin symmetry radially hinged support wave the outer ring of bearing, the described inner ring that waves bearing with wave oblique cover and be connected, the described cylindrical axis that waves oblique cover and in it axially bored line form angle of oscillation, described endoporus is connected with spindle end perpendicular to rocking bar.

During work, this mechanism still can pass through the space articulated structure, and the rotation of main shaft is become the reciprocal rotation of rocking bar, and because spindle end need not to arrange elbow, external diameter is less than its main paragraph diameter, so the mounting or dismounting of parts on shaft are very convenient.

It is that the described cylindrical axis that waves oblique cover overlaps with the intersection point of described rocking bar axis with intersection point and the described main-shaft axis of described interior axially bored line that the present invention further improves.Like this, can make the stress of mechanism best.

The present invention further improves, and the described cylindrical that waves oblique cover is by cutting the large footpath section of friendship with the first end face and consisting of with path section that the second end face cuts friendship; The external diameter of described spindle end forms positioning step less than the diameter of its main paragraph; Described the first and second end face ends are vertical with described endoporus, and described the first end face is resisted against described positioning step place.

Key component in the invention described above---the processing method of waving oblique cover may further comprise the steps:

The step cylinder that step 1, processing have large footpath section and path section, the length of large footpath section equal path section overall length and deduct and wave the bearing length of fit;

Step 2, to equate the respectively cylindrical two ends of processing step of depth of cut, form and wave the first end face and the second end face that oblique cover cylindrical axis consists of the angle of oscillation complementary angle;

Step 3, processing are perpendicular to the first and second end faces, and axis waves the endoporus in the center of circle, bearing length of fit middle section by the path section.

Above processing method technique can solve the manufacturing of waving oblique cover conscientiously, especially: if the length of the large footpath of control section equal path section overall length deduct wave the bearing length of fit, to equate the respectively cylindrical two ends of processing step of depth of cut, make again interior axially bored line wave the center of circle, bearing length of fit middle section by the path section; Can pass through process parameter control, the cylindrical axis that waves oblique cover after guaranteeing to assemble overlaps with the intersection point of rocking bar axis with intersection point and the main-shaft axis of interior axially bored line, saves complexity measuring and calculating, adjustment to the space linkage.

Description of drawings

The present invention is further illustrated below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of prior art.

Fig. 2 is the structural representation of one embodiment of the invention.

Fig. 3 is the vertical view of Fig. 2 embodiment.

Fig. 4 waves oblique cover processing step one schematic diagram among Fig. 2 embodiment.

Fig. 5 is the vertical view of Fig. 4.

Fig. 6 waves oblique cover processing step two schematic diagrames among Fig. 2 embodiment.

Fig. 7 is the vertical view of Fig. 6.

Fig. 8 waves oblique cover processing step three schematic diagrames among Fig. 2 embodiment.

Fig. 9 is the vertical view of Fig. 8.

Embodiment

Embodiment one

Present embodiment is the oscillating motion mechanism in a kind of middle-size and small-size combine, such as Fig. 2, shown in Figure 3, an end that is supported on the rocking bar 5 of bearing block 7 is fixed with universal fork 1, two prongs of this universal fork respectively by bearing pin 6 radially hinged support wave the outer ring of bearing 4, this waves the inner ring of bearing and waves oblique cover 3 close-fittings and is connected, this wave the cylindrical axis of oblique cover and in it axially bored line form angle of oscillation a, endoporus is connected with being connected perpendicular to main shaft 2 terminations of rocking bar 5 key by close-fitting.Wave the cylindrical axis of oblique cover and the intersection point of interior axially bored line and the intersection point of main-shaft axis and rocking bar axis and coincide with the O point.

Wave oblique cover 3(referring to Fig. 8, Fig. 9) cylindrical by cutting the large footpath section D of friendship with the first end face P1 and consisting of with path section d that the second end face P2 cuts friendship.The external diameter of spindle end forms positioning step less than the diameter of its main paragraph.The the first and second end face ends that wave oblique cover 3 are vertical with its endoporus, and when assembling the first end face P1 be resisted against the positioning step place.Thereby form reliable assembling and positioning relation.

The concrete processing of waving oblique cover 3 may further comprise the steps (referring to Fig. 4 to Fig. 9):

1, processing has the step cylinder of large footpath section D and path section d, the length L of large footpath section equals path section overall length and deducts and wave the bearing length of fit, namely equal the outer length l of end ring groove, the path section with wave the bearing length of fit take the end ring groove as the boundary, like this locating, the measurement all very convenient;

2, to equate the respectively cylindrical two ends of processing step of depth of cut, form and the first end face P1 and the second end face P2 that wave oblique cover cylindrical axis formation angle of oscillation complementary angle;

3, process perpendicular to the first and second end faces, and axis waves endoporus and the keyway in the center of circle, bearing length of fit middle section 0 by the path section.

This processing technology can be simplified and has the oblique cover manufacturing of waving of space angle of oscillation, as long as and control process parameter control well, the cylindrical axis that waves oblique cover after can guaranteeing to assemble overlaps with the intersection point of rocking bar axis with intersection point and the main-shaft axis of interior axially bored line, thereby guarantees stress that this mechanism is good and stable exercise performance.

In addition to the implementation, the present invention can also have other embodiments.All employings are equal to replaces or equivalent transformation.

Claims

1. A method for processing a slanting sleeve in a oscillating motion mechanism, the oscillating motion mechanism includes a rocking bar supported on a bearing seat, one end of the rocking bar is fixedly connected with a universal fork, and the two ends of the universal fork The forks respectively support the outer ring of the rocking bearing through symmetrical radial hinges of the pin shaft. The inner ring of the rocking bearing is fixedly connected with the rocking sleeve, and the outer circle axis of the rocking sleeve forms a rocking angle with the axis of the inner hole. The inner hole is fixedly connected with the main shaft end perpendicular to the rocker; the intersection point of the outer circle axis of the sway sleeve and the axis of the inner hole coincides with the intersection point of the axis of the main shaft and the axis of the rocker; The outer circle of the sleeve is composed of a large diameter section intersecting with the first end face and a small diameter section intersecting with the second end face; the outer diameter of the main shaft end is smaller than the diameter of its main body section, forming a positioning step; the first and the second end face are perpendicular to the inner hole, and the first end face abuts against the positioning step; it is characterized in that it includes the following steps:

Step 1, processing a stepped cylinder with a large diameter section and a small diameter section, the length of the large diameter section is equal to the total length of the small diameter section minus the length of the fit of the rocking bearing;

Step 2, processing the two ends of the stepped cylinder respectively with the same feed depth to form the first end surface and the second end surface which form a supplementary swing angle with the axis of the outer circle of the swing slant sleeve;

Step 3: Machining an inner hole perpendicular to the first and second end faces, and the axis of which passes through the center of the mid-section circle of the small-diameter section rocking bearing.

2. The processing method of the swaying slant bushing according to claim 1, characterized in that: in the step 1, the matching length of the small-diameter section and the oscillating bearing is bounded by the retaining ring groove of the bearing.

3. The processing method of the slanted bushing according to claim 2, characterized in that: the inner hole of the slanted bushing is connected with the main shaft end perpendicular to the rocking bar by a tightly fitted key connection; in the step 3 , while machining the inner hole and keyway.