CN205755560U - Spiral knot screen for harvester - Google Patents

Abstract

The utility model discloses a kind of spiral knot screen for harvester, including a taper case, an impurity exhaust conduit and a mixed feeding pipe, the described up big and down small layout of taper case, lower end are provided with a discharging opening, the lower end of described impurity exhaust conduit is arranged in described taper case, the described spiral knot screen for harvester also includes a blast pipe and a spiral feed pipe, and described spiral feed pipe is wrapped on described impurity exhaust conduit, upper end is connected with described mixed feeding pipe and described blast pipe.Advantage for the spiral knot screen of harvester of the present utility model is: with spiral feed pipe, the grain that can flow through has bigger downward component velocity, it is thus possible to discharge from discharging opening faster, reduce the grain discharged with impurity, thus improve yield rate.

Description

Spiral knot screen for harvester

Technical field

This utility model relates to agricultural mechanical field, a kind of spiral knot screen for harvester.

Background technology

Containing more impurity in the grain that harvester is gathered in the crops, these impurity bring more to the grain processing in later stage Problem, and impurity also adds the most extra load to harvester, also can take the grain storing containers of harvester in a large number In space, the grain making grain storing containers reality to hold reduces in a large number.

Utility model content

This utility model mainly solves the technical problem existing for prior art, thus provides a kind of and feed with spiral Pipe, it is possible to the grain flowed through has bigger downward component velocity such that it is able to discharge from discharging opening faster, subtract Few grain discharged with impurity, thus improve the spiral knot screen for harvester of grain harvest rate.

This utility model solves the technical problem in the presence of prior art by following technical proposals:

A kind of spiral knot screen for harvester, including a taper case, an impurity exhaust conduit and a mixed feeding pipe, The described up big and down small layout of taper case, lower end are provided with a discharging opening, and the lower end of described impurity exhaust conduit is arranged in described Taper case in, the described spiral knot screen for harvester also includes a blast pipe and a spiral feed pipe, described Spiral feed pipe is wrapped on described impurity exhaust conduit, upper end is connected with described mixed feeding pipe and described blast pipe Connecing, described mixed feeding pipe and described blast pipe are arranged parallel to and described mixed feeding pipe is arranged in described drum The top of airduct；The lower end of described spiral feed pipe is connected with the upper end of described taper case.

As this utility model preferred embodiment, the described spiral knot screen for harvester also includes a discharge Case, described nesting box is the cylindrical box that diameter is more than the lower end of described taper case, and the lower end of described nesting box sets It is equipped with a taper discharge nozzle.

Advantage for the spiral knot screen of harvester of the present utility model is: with spiral feed pipe, it is possible to make stream The grain of process has bigger downward component velocity such that it is able to discharge from discharging opening faster, reduces with impurity one Act the grain discharged, thus improve grain harvest rate.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the spiral knot screen for harvester of the present utility model；

Fig. 2 is the front view of the spiral knot screen for harvester in Fig. 1；

Wherein:

1, taper case；11, discharging opening；

2, impurity exhaust conduit；

3, mixed feeding pipe；

4, blast pipe；

5, spiral feed pipe；

6, nesting box；61, taper discharge nozzle.

Detailed description of the invention

Below preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model and feature energy It is easier to be readily appreciated by one skilled in the art, thus protection domain of the present utility model is made apparent clear and definite defining.

Advantage for the spiral knot screen of harvester of the present utility model is: with spiral feed pipe, it is possible to make stream The grain of process has bigger downward component velocity such that it is able to discharge from discharging opening faster, reduces with impurity one Act the grain discharged, thus improve grain harvest rate.

As shown in Figure 1 and Figure 2, a kind of spiral knot screen for harvester, including taper case 1, impurity exhaust conduit 2 and a mixed feeding pipe 3, this up big and down small layout of taper case 1, lower end are provided with a discharging opening 11, this impurity exhaust conduit 2 times End is arranged in this taper case 1, and this spiral knot screen being used for harvester also includes blast pipe 4 and a spiral feed pipe 5, This spiral feed pipe 5 is wrapped on this impurity exhaust conduit 2, upper end is connected with this mixed feeding pipe 3 and this blast pipe 4, and this mixes Close feed pipe 3 to be arranged parallel to this blast pipe 4 and this mixed feeding pipe 3 is arranged in the top of this blast pipe 4；This spiral enters The lower end of material pipe 5 is connected with the upper end of this taper case 1.This blast pipe 4 is connected with aerator, the height produced in blast pipe 4 Speed air-flow makes the end of the inner side of this mixed feeding pipe 3 produce a bigger negative pressure, makes the grain in this mixed feeding pipe 3 miscellaneous Matter mixture can more smoothly enter in this spiral feed pipe 5, and the grain through spiral feed pipe 5 can produce a direction Downward component velocity such that it is able to discharge from this discharging opening 11 faster, reduces with impurity by this impurity exhaust conduit 2 row The quantity of the grain gone out, thus reduce waste, improve yield rate.

This spiral knot screen being used for harvester also includes a nesting box 6, and this nesting box 6 is that diameter is more than this taper case The cylindrical box of the lower end of 1, the lower end of this nesting box 6 is provided with a taper discharge nozzle 61.This nesting box 6 advantageously reduces this Pressure at discharging opening 11, thus accelerate the mass rate of emission of grain, it is possible to the generation of the minimizing clogging of high degree.

It is only more than the mentality of designing of some embodiments of the present utility model, in the case of system allows, this reality The most external more functional module can be expanded to novel, thus extend its function to greatest extent.

The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to In this, any change expected without creative work or replacement, all should contain within protection domain of the present utility model. Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.

Claims (2)

1., for a spiral knot screen for harvester, it is mixed into including a taper case (1), an impurity exhaust conduit (2) and Material pipe (3), described taper case (1) up big and down small layout, lower end are provided with a discharging opening (11), described impurity exhaust conduit (2) lower end is arranged in described taper case (1), it is characterised in that: the described spiral knot screen for harvester is also Including a blast pipe (4) and a spiral feed pipe (5), described spiral feed pipe (5) is wrapped in described impurity exhaust conduit (2) Upper, upper end is connected with described mixed feeding pipe (3) and described blast pipe (4), and described mixed feeding pipe (3) is with described Blast pipe (4) be arranged parallel to and described mixed feeding pipe (3) is arranged in the top of described blast pipe (4)；Described The lower end of spiral feed pipe (5) be connected with the upper end of described taper case (1).

Spiral knot screen for harvester the most according to claim 1, it is characterised in that: described for harvester Spiral knot screen also include that a nesting box (6), described nesting box (6) they are that diameter is more than under described taper case (1) The cylindrical box of end, the lower end of described nesting box (6) is provided with a taper discharge nozzle (61).