CN213575418U

CN213575418U - Novel cam for pickup

Info

Publication number: CN213575418U
Application number: CN202022056924.7U
Authority: CN
Inventors: 王立冬; 侯学伟; 李超; 周爽; 曹世宇
Original assignee: Harbin Huahui Agricultural Machinery Manufacturing Co ltd
Current assignee: Harbin Huahui Agricultural Machinery Manufacturing Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-29
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a novel cam for pickup, piece and cam bottom plate in outer piece, bearing frame, cam, the bearing frame is installed on the cam bottom plate, the cam inner piece offsets and sets up with the bearing frame mutually with the cam bottom plate, the cam inner piece is equipped with the sandwich panel rather than offsetting with the cam bottom plate one side of carrying on the back mutually, the cam outer piece offsets with the another side of sandwich panel, the cam outer piece, bearing frame, cam inner piece, cam bottom plate and sandwich panel are connected through first connecting piece, the cam outer piece, bearing frame, cam inner piece and cam bottom plate are connected through the second connecting piece, the size of cam outer piece, sandwich panel and cam inner piece is the same, the cam outer piece, sandwich panel, cam inner piece and cam bottom plate all process through laser cutting. The utility model discloses rational in infrastructure, manufacturing is simple, and can only change cam inner plate and cam outer plate after wearing and tearing, need not to change whole cam, greatly reduced replacement cost.

Description

Novel cam for pickup

Technical Field

The utility model relates to the technical field of agricultural machinery, especially, relate to a novel cam for pickup.

Background

For the pickup system of the bundling machine, there are two main implementations at present: one is a pickup without a cam structure, and the other is a pickup with a cam structure. Both have advantages and disadvantages. The pickup without the cam structure has the advantages that the track is not limited by the cam, and only the elastic teeth rotate around a certain fixed circle center, so that the stress is relatively uniform. The disadvantage is the comparatively large volume. Because there is no cam, different rows of spring teeth rotate about the center of an axis. The movement track of the elastic teeth is large, and the distance between the pickup and the feeding device is large in order to ensure that the elastic teeth cannot interfere with feeding in the rotating process because the materials picked up by the elastic teeth need to be transported to the feeding device. The pickup device with the cam structure has the advantages that the structure is small in size, the distance between the pickup device and the feeding system can be shortened, and the working efficiency is improved. The disadvantage is that if the cam track is not properly designed, although the use requirement can be met, the service life of the cam is shortened along with the prolonging of the use time. At present, the pickup without the cam structure is applied more.

The cam of foreign pickup is the design product, so mostly be the foundry goods structure, belong to vulnerable part moreover. After the cam is damaged, when the accessory is bought again, one is expensive, and the supply period is longer. The busy season is short, so that inconvenience is brought to users. The mode adopted in China is that in the research and development stage or the small-batch production stage, a machining center is adopted to machine and directly machine to a use state, or an inner ring and an outer ring are cut by wire cutting and then are used after being welded with a bottom plate.

The technical means have unreasonable branches. 1. The machining center is used for machining, a large irregular solid material is needed, the shape of the turning cam is machined, the working hours are long, most of the material is removed, and waste is serious. 2. The wire cutting process is also only capable of processing the cam-shaped inner ring and the cam-shaped outer ring, and the wire cutting efficiency is relatively low, and the subsequent welding and drilling processes are required, so that the wire cutting process is not suitable for mass production. 3. With precision casting, the machining process is greatly simplified, but the cost of the precision casting mold is relatively expensive, and it is not cost effective if the mold cost cannot be distributed to each part in large-scale production. 4. To say back, no matter what kind of mode was made the cam, when changing, all need the whole cam of changing, therefore we have designed a novel cam for pickup and have solved above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the novel cam for pickup that proposes, its manufacturing is simple, and can only change cam inner plate and cam outer plate after wearing and tearing, need not to change whole cam, greatly reduced replacement cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel cam for pickup, includes outer piece of cam, bearing frame, cam inner piece and cam bottom plate, the bearing frame is installed on the cam bottom plate, the cam inner piece offsets with the cam bottom plate and sets up mutually with the bearing frame mutually, the cam inner piece is equipped with rather than the intermediate layer board that offsets with the one side that the cam bottom plate carried on the back mutually, the outer piece of cam offsets with the another side of intermediate layer board, the outer piece of cam, bearing frame, cam inner piece, cam bottom plate and intermediate layer board are connected through first connecting piece, the outer piece of cam, bearing frame, cam inner piece and cam bottom plate are connected through the second connecting piece.

Preferably, the cam outer plate, the sandwich plate and the cam inner plate are the same size.

Preferably, the cam outer plate, the sandwich plate, the cam inner plate and the cam bottom plate are all made of steel plates with the thickness of 10mm and the material of 45 or medium carbon steel.

Preferably, the cam outer plate, the sandwich plate, the cam inner plate and the cam base plate are all processed by laser cutting.

Preferably, the first connecting piece and the second connecting piece are both composed of connecting bolts and nuts, and the connecting bolts are hinged bolt holes above 8.8 levels.

Preferably, bolt holes are arranged on the cam outer plate, the bearing seat, the cam inner plate, the cam bottom plate and the sandwich plate in a penetrating mode, and the bolt holes are processed through reaming.

Compared with the prior art, the utility model, its beneficial effect does:

the cam track is formed by overlapping and combining three same steel plates of the cam outer plate, the cam inner plate and the sandwich plate, and all bolt holes connected through connecting bolts are subjected to reaming treatment in order to ensure the consistency of the track after installation; the cam outer plate, the cam inner plate and the sandwich plate are combined into a cam track, the cam track is simple to process and manufacture, the cam inner plate and the cam outer plate can be only replaced after being worn, the whole cam does not need to be replaced, and the replacement cost is greatly reduced.

To sum up, the utility model discloses rational in infrastructure, manufacturing is simple, and can only change cam inner plate and cam outer plate after wearing and tearing, need not to change whole cam, greatly reduced replacement cost.

Drawings

Fig. 1 is a side sectional view of a cam for a novel pickup according to the present invention;

fig. 2 is a front view of the cam for the novel pickup device provided by the utility model.

In the figure: the cam comprises 1 cam outer piece, 2 bearing seats, 3 cam inner pieces, 4 cam base plates, 5 connecting bolts, 6 nuts and 7 sandwich plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, the novel cam for the pickup comprises an outer cam sheet 1, a bearing seat 2, an inner cam sheet 3 and a cam bottom plate 4, wherein the outer cam sheet 1, a sandwich plate 7 and the inner cam sheet 3 are the same in size; bearing frame 2 is installed on cam bottom plate 4, and cam inner 3 offsets and sets up with bearing frame 2 back of the body with cam bottom plate 4 mutually, and cam inner 3 is equipped with rather than the sandwich panel 7 that offsets with cam bottom plate 4 one side that backs on the body mutually, and cam outer 1 offsets with the another side of sandwich panel 7.

The cam outer plate 1, the sandwich plate 7, the cam inner plate 3 and the cam bottom plate 4 are all made of steel plates with the thickness of 10mm and the material of 45 mm or medium carbon steel, and the cam outer plate 1, the sandwich plate 7, the cam inner plate 3 and the cam bottom plate 4 are all processed by laser cutting.

Cam outer plate 1, bearing frame 2, cam inner plate 3, cam bottom plate 4 and sandwich panel 7 are connected through first connecting piece, cam outer plate 1, bearing frame 2, cam inner plate 3 and cam bottom plate 4 are connected through the second connecting piece, first connecting piece and second connecting piece are constituteed by connecting bolt 5 and nut 6, connecting bolt 5 adopts the hinge bolt hole more than 8.8 grades, cam outer plate 1, bearing frame 2, cam inner plate 3, run through on cam bottom plate 4 and the sandwich panel 7 and be equipped with the bolt hole, the bolt hole is handled through the hinge hole.

In the utility model, the cam track is formed by overlapping three same steel plates of the cam outer plate 1, the cam inner plate 3 and the sandwich plate 7, and all bolt holes connected by the connecting bolts 6 are reamed to ensure the consistency of the track after installation; the cam outer plate 1, the cam inner plate 3 and the sandwich plate 7 are combined into a cam track, the cam track is simple to process and manufacture, the cam inner plate 3 and the cam outer plate 1 can be only replaced after being worn, the whole cam does not need to be replaced, and the replacement cost is greatly reduced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel cam for a picker comprises an outer cam sheet (1), a bearing seat (2), an inner cam sheet (3) and a cam bottom plate (4), it is characterized in that the bearing seat (2) is arranged on the cam bottom plate (4), the cam inner sheet (3) is abutted against the cam bottom plate (4) and is arranged opposite to the bearing seat (2), one surface of the cam inner sheet (3) opposite to the cam bottom plate (4) is provided with a sandwich plate (7) which is propped against the cam inner sheet, the cam outer plate (1) is abutted against the other side of the sandwich plate (7), the cam outer plate (1), the bearing seat (2), the cam inner plate (3), the cam bottom plate (4) and the sandwich plate (7) are connected through a first connecting piece, the cam outer plate (1), the bearing seat (2), the cam inner plate (3) and the cam base plate (4) are connected through a second connecting piece.

2. A cam for a new type of picker according to claim 1, wherein the cam outer piece (1), the sandwich plate (7) and the cam inner piece (3) are the same size.

3. The cam for the novel picker according to claim 1, wherein the cam outer plate (1), the sandwich plate (7), the cam inner plate (3) and the cam base plate (4) are all made of steel plates with the thickness of 10mm and the material quality of 45 or medium carbon steel.

4. The cam for the novel picker according to claim 1, wherein the cam outer sheet (1), the sandwich plate (7), the cam inner sheet (3) and the cam base plate (4) are all processed by laser cutting.

5. The cam for the novel picker according to claim 1, wherein the first connecting piece and the second connecting piece are both composed of a connecting bolt (5) and a nut (6), and the connecting bolt (5) adopts a hinged bolt hole with the grade of 8.8 or more.

6. The cam for the novel picker according to claim 5, wherein bolt holes are arranged on the cam outer plate (1), the bearing seat (2), the cam inner plate (3), the cam bottom plate (4) and the sandwich plate (7) in a penetrating manner, and the bolt holes are subjected to reaming treatment.