CN220356026U - Dead desiccator feeding spiral of anti-sticking - Google Patents

Abstract

The utility model relates to an anti-seize feeding screw of a dryer. The utility model relates to an anti-seize dryer feed screw comprising: a shell, a spiral body and a rotating structure; the shell cylinder is characterized in that a sealing assembly is arranged at the initial end of the shell cylinder, a discharge hole is arranged at the tail end of the shell cylinder, a shaft sleeve is arranged on the upper cover of the discharge hole, a feeding hole is arranged on the upper side wall of the initial end of the shell cylinder close to the sealing assembly, and the rotating structure is arranged on an extension line of the initial end of the shell cylinder; the spiral body comprises a spiral shaft and spiral blades, the spiral blades are uniformly and spirally fixed on the spiral shaft in a surrounding mode, the starting ends of the spiral blades are abutted to the inner wall of the starting end of the shell barrel, one end of the spiral shaft penetrates through the sealing assembly to be connected with the rotating structure, and the other end of the spiral shaft penetrates into the shaft sleeve. The feeding screw of the anti-seizing dryer has the advantages of preventing the rotating structure from being blocked by materials and reducing the probability of screw seizing.

Description

Dead desiccator feeding spiral of anti-sticking

Technical Field

The utility model relates to the field of material conveying, in particular to a feeding screw.

Background

Flash dryer feeds through the feed screw, however current feed screw is because the bearing is built-in, leads to the powder to get into the bearing easily and makes the bearing card die. Simultaneously, because the position design of feed inlet and helical blade's design are unreasonable enough, can lead to the material to pile up easily in the one end of keeping away from the discharge gate for spiral card is dead or make the material moisture easily get into seal assembly and bearing, leads to the bearing to rust the damage.

Disclosure of Invention

Accordingly, the utility model aims to provide an anti-seizing feeding screw of a dryer, which has the advantages of preventing a rotating structure from being blocked by materials and reducing the probability of seizing the screw.

An anti-seize dryer feed screw. Comprises a shell barrel, a spiral body and a rotating structure; the shell cylinder is characterized in that a sealing assembly is arranged at the initial end of the shell cylinder, a discharge hole is arranged at the tail end of the shell cylinder, a shaft sleeve is arranged on the upper cover of the discharge hole, a feeding hole is arranged on the upper side wall of the initial end of the shell cylinder close to the sealing assembly, and the rotating structure is arranged on an extension line of the initial end of the shell cylinder; the spiral body comprises a spiral shaft and spiral blades, the spiral blades are uniformly and spirally fixed on the spiral shaft in a surrounding mode, the starting ends of the spiral blades are abutted to the inner wall of the starting end of the shell barrel, one end of the spiral shaft penetrates through the sealing assembly to be connected with the rotating structure, and the other end of the spiral shaft penetrates into the shaft sleeve.

According to the anti-seizing feeding screw of the dryer, through the fact that the rotating structure is arranged externally, materials are prevented from entering the rotating structure, and the risk of seizing of the screw is reduced.

Further, a shaft collar is arranged in the center of the shaft sleeve, the shaft collar is connected with the outer ring of the shaft sleeve through a connecting arm, and the screw shaft is sleeved on the shaft collar.

Further, the rotating structure is arranged outside the sealing assembly; the rotating structure comprises a bearing, and the screw shaft is rotatably connected with the rotating structure through the bearing.

Further, the interval between the spiral blades is 205-195 mm.

Further, the distance between the spiral blade and the inner wall is 5-8mm.

Further, the shaft sleeve is a tetrafluoro shaft sleeve.

Further, a drain switch is arranged on the shell barrel, and the drain switch is arranged on the barrel wall at the lower side of the initial end of the shell barrel and is close to the sealing assembly.

Further, the drain switch length is less than four times the pitch between the helical blades.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

Drawings

FIG. 1 is a cross-sectional view of an anti-seize dryer feed screw;

fig. 2 is a perspective view of a sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, and are constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected via an intermediary, or connected by communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

The embodiment provides an anti-jamming feeding screw of a dryer, which comprises a shell barrel 1, a screw body 2 and a rotating structure 3. The rotating structure 3 is arranged on an extension line of the shell barrel 1, and one end (namely the starting end) of the spiral body 2 penetrating through the shell barrel 1 is arranged in the shell body and connected with the rotating structure 3.

The shell 1 is provided with a sealing component 101 at the beginning end, a discharge hole is arranged at the other end (namely the tail end), and a shaft sleeve 102 is also covered on the discharge hole. The upper side cylinder wall of the starting end of the shell cylinder 1 is provided with a feed inlet 1a, and the feed inlet 1a is closely adjacent to the sealing assembly 101.

The screw 2 comprises a screw shaft 201 and screw blades 202. One end of the screw shaft 201 passes through the sealing assembly 101 to be connected with the rotating structure 3, and the other end passes into the shaft sleeve 102. The spiral blades 202 are uniformly and spirally wound and fixed on the spiral shaft 201; in some embodiments, the pitch of the helical blades 202 is 250-195 mm in a straight line parallel to the helical axis 201; preferably, the distance between the spiral blades 202 is 205-195 mm, and the distance between the spiral blades 202 and the inner wall is 5-8mm, so that the spiral running resistance is reduced, and the situations of blade deformation and spiral wall friction caused by the clamping of the spiral by materials are effectively avoided. The starting end of the helical blade 202 abuts against the inner wall of the starting end of the shell 1, and the gap between the helical blade 202 and the starting end of the shell 1 is made as small as possible, so that the material is prevented from accumulating between the helical blade 202 and the gap between the helical blade and the starting end of the shell 1.

In some embodiments, the shell 1 is further provided with a drain switch 1b, the drain switch 1b is disposed on the wall of the lower side of the beginning end of the shell 1, and is disposed next to the sealing component 101, preferably, the length of the drain switch 1b is less than four times of the interval between the helical blades 202.

The rotating structure 3 comprises bearings, through which the screw shaft 201 is rotatably connected to the rotating structure 3. In some embodiments, the rotating structure 3 is provided outside the seal assembly 101, by providing the bearing outside the housing 1, preventing material from entering the bearing, causing wear to the bearing, and preventing metal debris of the bearing from mixing into the material. The screw shaft 201 is also connected to a motor that powers the rotation of the screw shaft 201.

In some embodiments, a collar 102a is disposed at the center of the shaft sleeve 102, the collar 102a is connected to the outer ring of the shaft sleeve 102 through a connecting arm 102b, the collar 102a is sleeved with a screw shaft 201, the shaft sleeve 102 is preferably made of non-metal materials, in some embodiments, the shaft sleeve 102 is a tetrafluoro shaft sleeve 102, so that metal chips are prevented from being mixed into materials for pollution, and the replacement is simple and the cost is low.

When the device is used, materials are fed into the feed inlet 1a, the motor is turned on, the motor drives the screw shaft 201 to rotate, the screw blades 202 are driven to rotate, the screw blades 202 push the materials to the discharge outlet, and the materials pass through the shaft sleeve 102 to be fed out of the shell barrel 1. When the material is piled up between the helical blade 202 and the gap at the start end of the shell 1, the leakage switch 1b is turned on to clean the piled material, and the screw body 2 is prevented from being blocked.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and the utility model is intended to encompass such modifications and improvements.

Claims (7)

1. An anti-sticking dead desiccator feed screw, its characterized in that: comprises a shell barrel, a spiral body and a rotating structure; the shell cylinder is characterized in that a sealing assembly is arranged at the initial end of the shell cylinder, a discharge hole is arranged at the tail end of the shell cylinder, a shaft sleeve is arranged on the upper cover of the discharge hole, a feeding hole is arranged on the upper side wall of the initial end of the shell cylinder close to the sealing assembly, and the rotating structure is arranged on an extension line of the initial end of the shell cylinder; the spiral body comprises a spiral shaft and spiral blades, the spiral blades are uniformly and spirally fixed on the spiral shaft in a surrounding mode, the starting ends of the spiral blades are abutted to the inner wall of the starting end of the shell barrel, one end of the spiral shaft penetrates through the sealing assembly to be connected with the rotating structure, and the other end of the spiral shaft penetrates into the shaft sleeve; the shell is provided with a leakage switch, and the leakage switch is arranged on the wall of the lower side of the initial end of the shell and is close to the sealing assembly.

2. An anti-seize dryer feed screw as claimed in claim 1, characterized in that: the center of the shaft sleeve is provided with a shaft collar, the shaft collar is connected with the outer ring of the shaft sleeve through a connecting arm, and the shaft collar is sleeved with the screw shaft.

3. An anti-seize dryer feed screw as claimed in claim 2, characterized in that: the rotating structure is arranged outside the sealing assembly; the rotating structure comprises a bearing, and the screw shaft is rotatably connected with the rotating structure through the bearing.

4. A seizing-proof dryer feed screw as set forth in claim 3, wherein: the interval between the spiral blades is 205-195 mm.

5. An anti-seize dryer feed screw as in claim 4, wherein: the distance between the spiral blade and the inner wall is 5-8mm.

6. An anti-seize dryer feed screw as in claim 5, wherein: the shaft sleeve is a tetrafluoro shaft sleeve.

7. An anti-seize dryer feed screw as in claim 6, wherein: the drain switch length is less than four times the pitch between the helical blades.