CN210028977U

CN210028977U - Intermittent variable-pitch screw conveyor

Info

Publication number: CN210028977U
Application number: CN201920839581.6U
Authority: CN
Inventors: 米歇尔·罗本; 王永江; 王保良; 李建强
Original assignee: Weifang Sabot Precision Rotating Equipment Co Ltd
Current assignee: Weifang Sabot Precision Rotating Equipment Co Ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-02-07
Anticipated expiration: 2029-06-05

Abstract

The utility model discloses an intermittent variable-pitch screw conveyor, which belongs to the technical field of screw conveyors and comprises a shell and a conveying shaft, wherein conveying blades are arranged on the outer surface of the conveying shaft, a discharge hole is arranged at one end of the shell corresponding to the conveying shaft, a feed inlet is arranged above the other end of the shell corresponding to the conveying shaft, the pitch of the conveying blades at the feed inlet is larger than that at the discharge hole, and a plurality of gaps are arranged on the conveying blades; the utility model discloses a pitch of delivery blade's discharge gate end is less than the pitch of feed gate end, the great pitch of feed gate end does benefit to the material and gets into, the less pitch of discharge gate end more does benefit to the material and pushes away, can assist the material to get into the casing and carry the cavity between the axle and then carried, and simultaneously, helical blade is located feed gate department and is equipped with intermittent type's breach, more do benefit to the material and enter into the casing and carry the cavity between the axle and contact with helical blade, can effectively solve gathering and the bridging problem of the straw of feed gate department or faggot.

Description

Intermittent variable-pitch screw conveyor

Technical Field

The utility model relates to a screw conveyer technical field, concretely relates to discontinuous formula displacement auger delivery ware.

Background

The screw conveyer is commonly called a screw conveyer, is conveying equipment with wider application in the mineral industry, the feed industry, the grain and oil industry and the building industry, is made of steel materials, and is used for conveying products with higher temperature, such as powder or solid particles, used for chemical engineering and building materials. The screw pump is a typical screw conveyor, and the screw pump conveys liquid or fluid by means of volume change and movement of an engaging space formed by a pump body and a screw.

In the field of biogas, a specific spiral conveyor is not used for conveying materials before biogas fermentation and biogas slurry after fermentation, the raw materials for biogas fermentation mainly comprise straws, animal wastes and the like, the fermented biogas slurry comprises straws, firewood and the like which are not fully degreased, and the two media have the characteristic of poor fluidity, and are easy to accumulate in the conveying process by using the conventional spiral conveyor, so that the feeding and conveying are not facilitated, and particularly when the straws are used as the fermentation raw materials, the blockage is easily caused and generally occurs at a feeding port or a discharging port.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a pair of intermittent type formula displacement auger delivery ware, the pitch that can utilize conveying blade's discharge gate end is less than the pitch of feed gate end, great pitch at feed gate end does benefit to the material and gets into, the less pitch of discharge gate end is located the extrusion compounding position in the casing, more do benefit to the material and push, can auxiliary material get into the casing and carry the cavity between the axle and then carried, and simultaneously, helical blade is located the breach that feed gate department was equipped with intermittent type, more do benefit to the material and enter into the casing and carry the cavity between the axle and contact with helical blade, can effectively solve the gathering and the bridging problem of the straw of feed gate department or firewood.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the discontinuous variable-pitch screw conveyor comprises a shell and a conveying shaft arranged in the shell, wherein spiral conveying blades are arranged on the outer surface of the conveying shaft, a discharge hole is formed in the end part, corresponding to one end of the conveying shaft, of the shell, a feed hole is formed in the upper portion, corresponding to the other end of the conveying shaft, of the shell, the screw pitch, located at the feed hole, of each conveying blade is larger than that of each conveying blade, the screw pitch, located at the discharge hole, of each conveying blade, and a plurality of notches are formed in the conveying blades, located at the feed hole.

As a preferable technical solution, a driving assembly for driving the conveying shaft to rotate is connected to an end of the conveying shaft at the feeding port.

As a preferred technical solution, the pitch of the conveying blade gradually decreases from the feeding hole to the discharging hole.

As a preferable technical solution, the conveying blade includes a first conveying blade and a second conveying blade, the first conveying blade is located at the feed port, the second conveying blade is located at the discharge port, and the first conveying blade and the second conveying blade are connected to each other.

As a preferable technical scheme, a plurality of hemispherical bulges are uniformly distributed on the surface of the conveying blade.

The utility model has the advantages of that:

the utility model discloses a pitch of delivery blade's discharge gate end is less than the pitch of feed gate end, the great pitch of feed gate end does benefit to the material and gets into, the less pitch of discharge gate end is located the extrusion compounding position in the casing, more do benefit to the material and push, can the auxiliary material get into the casing and carry the cavity between the axle and then carried, and simultaneously, helical blade is located feed gate department and is equipped with intermittent type's breach, more do benefit to the material and enter into the casing and carry the cavity between the axle and contact with helical blade, can effectively solve gathering and the bridging problem of the straw of feed gate department or faggot.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a structural diagram of the conveying shaft of the present invention.

In the figure: 1-driving component, 2-feeding port, 3-conveying blade, 4-conveying shaft, 5-shell, 6-discharging port and 7-notch.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-3, the utility model provides an intermittent variable pitch screw conveyor, which comprises a shell 5 and a conveying shaft 4 arranged in the shell 5, wherein the outer surface of the conveying shaft 4 is provided with a spiral conveying blade 3, the end part of the shell 5 corresponding to one end of the conveying shaft 4 is provided with a discharge hole 6, the upper part of the shell 5 corresponding to the other end of the conveying shaft 4 is provided with a feed inlet 2, the conveying shaft 4 drives the conveying blade 3 to rotate, so that the volume change of an engagement space formed by the shell 5 and the conveying shaft 4 realizes the material of the material; the screw pitch of the conveying blade 3 at the feed inlet 2 is larger than that of the conveying blade 3 at the discharge outlet 6, the larger screw pitch at the end of the feed inlet 2 is favorable for materials to enter, the smaller screw pitch at the end of the discharge outlet 6 is positioned at the material extruding and mixing part in the shell 5, so that the material extruding is more favorable, and the materials can be assisted to enter a cavity between the shell 5 and the conveying shaft 4 and then conveyed; the conveying blade 3 is provided with a plurality of notches 7, preferably, the notches 7 are semicircular, so that materials can enter a cavity between the shell 5 and the conveying shaft 4 and can be contacted with the spiral blades, and the problems of accumulation and bridging of straws or firewood at the feed port 2 can be effectively solved.

Further, the end of the conveying shaft 4 at the feed inlet 2 is connected with a driving assembly 1 for driving the conveying shaft 4 to rotate, and preferably, the driving assembly 1 can be a rotating motor.

Further, the pitch of the conveying blades 3 is gradually reduced from the feeding port 2 to the discharging port 6, so that the extrusion force of the materials entering the shell 5 and between the conveying shafts 4 is linearly increased, the materials are more easily extruded, and the conveying is convenient.

Further, as shown in fig. 3, the conveying blade 3 includes a first conveying blade and a second conveying blade, the first conveying blade is located at the feed inlet 2, the second conveying blade is located at the discharge outlet 6, the first conveying blade and the second conveying blade are connected to each other, the pitch of the first conveying blade (as shown in B in fig. 3) is greater than that of the second conveying blade (as shown in a in fig. 3), and the manufacturing process of this method is simpler and the production cost is lower.

Further, a plurality of hemispherical protrusions (not shown in the figure) are uniformly distributed on the surface of the conveying blade 3, the protrusions can increase the friction force between the surface of the conveying blade 3 and the material, and can give larger forward conveying force to the material in the rotating process of the conveying blade 3, so that the conveying effect is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The discontinuous variable-pitch screw conveyor is characterized by comprising a shell and a conveying shaft arranged in the shell, wherein spiral conveying blades are arranged on the outer surface of the conveying shaft, a discharge hole is formed in the end part, corresponding to one end of the conveying shaft, of the shell, a feed inlet is formed in the upper part, corresponding to the other end of the conveying shaft, of the shell, the pitch, located at the feed inlet, of each conveying blade is larger than that of each conveying blade, located at the discharge hole, and a plurality of notches are formed in the conveying blades located at the feed inlet.

2. An interrupted, variable-pitch screw conveyor as claimed in claim 1 wherein the end of the conveyor shaft at the infeed opening is connected to a drive assembly for driving rotation of the conveyor shaft.

3. An interrupted pitch screw conveyor as claimed in claim 1 wherein the pitch of said conveyor blades decreases in a direction from said feed inlet to said discharge outlet.

4. An intermittent variable pitch screw conveyor as in claim 1 wherein said conveyor vanes comprise first conveyor vanes at said feed opening and second conveyor vanes at said discharge opening, said first conveyor vanes and said second conveyor vanes being interconnected.

5. The discontinuous pitch screw conveyor of claim 1, wherein the surface of the conveyor blade is uniformly provided with a plurality of hemispherical protrusions.