CN212596125U

CN212596125U - Spiral conveying shaft

Info

Publication number: CN212596125U
Application number: CN202021135463.6U
Authority: CN
Inventors: 陈沛波; 欧志明; 曾秀仪; 岳汉; 罗学圣
Original assignee: Shenzhen Zenergy Co ltd
Current assignee: Shenzhen Zenergy Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-02-26
Anticipated expiration: 2030-06-18

Abstract

The application relates to the technical field of material crushing, in particular to a spiral conveying shaft, which comprises a shaft body, a first crushing cutter and a second crushing cutter; the first crushing cutter and the second crushing cutter are spirally wound on the shaft body; the spiral direction of the first crushing knife is opposite to that of the second crushing knife; the second crushing cutter is arranged on one side, away from the feeding end of the shaft body, of the first crushing cutter; and crushing teeth are arranged on the peripheral arc surface of the first crushing cutter and the peripheral arc surface of the second crushing cutter. This application carries the limit to the material limit through first broken sword and carries the breakage, can push back the material that exceeds the discharge gate through the broken sword of second simultaneously, is favorable to preventing that the too much backlog of material of discharge end from causing the condition of discharge gate jam to take place, solves effectively to have the material to pile up the technical problem who leads to the material to agglomerate again and the bridge at the discharge gate among the prior art easily.

Description

Spiral conveying shaft

Technical Field

The application relates to the technical field of material crushing, in particular to a spiral conveying shaft.

Background

Various conveying devices are needed in the sludge energy treatment process, such as belt conveying, chain conveying, spiral conveying, bucket lifting and the like. However, the prior art has a number of disadvantages for transporting the cake pressed out of the filter press: on one hand, the block-shaped mud cakes occupy large space during conveying; secondly, when the large mud cakes fall into the conveying equipment, the conveying equipment can be damaged due to large weight; it is also important that the cake, which is not broken, is very inconvenient to load when it is needed to enter the bucket elevator. Therefore, the blocky mud cakes are required to be conveyed and crushed at the same time, but the crushed mud is easy to accumulate at the discharge port, so that the phenomenon of re-agglomeration and bridging of the accumulated mud is easy to occur, and the discharge port discharges the mud without the crushing effect.

SUMMERY OF THE UTILITY MODEL

In view of this, the purpose of this application is to provide a spiral delivery axle, solve effectively and exist the material among the prior art and pile up the technical problem that leads to the material to agglomerate again and bridge at the discharge gate easily.

In order to achieve the purpose, the application provides the following technical scheme:

a spiral conveying shaft comprises a shaft body, a first crushing cutter and a second crushing cutter;

the first crushing cutter and the second crushing cutter are spirally wound on the shaft body;

the spiral direction of the first crushing knife is opposite to that of the second crushing knife;

the second crushing cutter is arranged on one side, away from the feeding end of the shaft body, of the first crushing cutter;

and crushing teeth are arranged on the peripheral arc surface of the first crushing cutter and the peripheral arc surface of the second crushing cutter.

Preferably, in the above-mentioned auger shaft, the first crushing blades are circumferentially distributed at an angle of not less than 360 °.

Preferably, in the above-mentioned screw conveying shaft, the second crushing blades are circumferentially distributed at an angle of less than 360 °.

Preferably, the spiral conveying shaft further comprises a crushing rod, the crushing rod is arranged on the shaft body, and the crushing rod is located between the first crushing cutter and the second crushing cutter.

Preferably, in the above spiral conveying shaft, the number of the crushing rods is plural, and the plural crushing rods are uniformly distributed along the circumferential direction of the shaft body.

Preferably, in the above-mentioned screw conveying shaft, the crushing teeth have a triangular, rectangular, trapezoidal or semicircular cross section.

Preferably, in the above-described conveying screw shaft, the number of the crushing teeth is plural, and the plural crushing teeth are arranged in a wavy or zigzag manner on the first crushing blade and the second crushing blade.

Preferably, in the above-described auger shaft, a distance from the cutting edge of the second crushing blade to the shaft body is not less than a distance from the cutting edge of the first crushing blade to the shaft body.

Preferably, in the above-mentioned conveying screw shaft, a line connecting a termination point of the first crushing blade and a termination point of the second crushing blade is parallel to an axis of the shaft body.

Preferably, in the spiral conveying shaft, spline sleeves are connected to both ends of the shaft body.

Compared with the prior art, the beneficial effects of this application are:

(1) the first spiral crushing cutter and the second spiral crushing cutter can be driven to rotate through rotation of the shaft body, so that materials input from the feeding end can be crushed by the first crushing cutter, and the crushed materials can be continuously conveyed to the discharging end by utilizing the characteristic of pushing the materials to move when the first spiral crushing cutter rotates in a spiral manner, so that the materials are conveyed and crushed; meanwhile, the arc surface of the periphery of the first crushing cutter is also provided with crushing teeth, so that the crushing effect of the first crushing cutter on materials can be greatly improved, and the crushing device has the advantages of small occupied space, low operation cost and good crushing effect;

(2) because the spiral direction of the second crushing cutter is opposite to that of the first crushing cutter, and the second crushing cutter is arranged on one side of the first crushing cutter, which is far away from the feeding end of the shaft body, after the first crushing cutter crushes the material, the crushed material is conveyed to the second crushing cutter rotating in the opposite direction, and the second crushing cutter can push back the material exceeding the discharge port in the direction close to the first crushing cutter, so that the situation that the discharge port is blocked due to excessive material backlog at the discharge end is prevented; simultaneously, the crushing teeth on the second crushing knife and the second crushing knife can perform secondary crushing on the materials, so that the situation that the materials are agglomerated and bridged again is prevented, and the technical problems that the materials are agglomerated and bridged again easily at a discharge port in the prior art are solved effectively.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a conveying screw according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view taken along U-U of FIG. 1 of a spiral delivery shaft according to an embodiment of the present application;

fig. 3 is a top view of a conveying screw according to an embodiment of the present disclosure.

In the figure:

the crushing device comprises a shaft body 1, a first spline sleeve 11, a second spline sleeve 12, a first crushing cutter 2, crushing teeth 21, a second crushing cutter 3 and a crushing rod 4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

Various conveying devices are needed in the sludge energy treatment process, such as belt conveying, chain conveying, spiral conveying, bucket lifting and the like. However, the prior art has a number of disadvantages for transporting the cake pressed out of the filter press: on one hand, the block-shaped mud cakes occupy large space during conveying; secondly, when the large mud cakes fall into the conveying equipment, the conveying equipment can be damaged due to large weight; it is also important that the cake, which is not broken, is very inconvenient to load when it is needed to enter the bucket elevator. Therefore, the blocky mud cakes are required to be conveyed and crushed at the same time, but the crushed mud is easy to accumulate at the discharge port, so that the phenomenon of re-agglomeration and bridging of the accumulated mud is easy to occur, and the discharge port discharges the mud without the crushing effect. This embodiment provides a screw conveying axle, can solve and to have the material to pile up the technical problem who leads to the material to agglomerate again and the bridge at the discharge gate easily among the prior art.

Referring to fig. 1 to 3, an embodiment of the present application provides a spiral conveying shaft, which includes a shaft body 1, a first crushing cutter 2, and a second crushing cutter 3; the first crushing cutter 2 and the second crushing cutter 3 are spirally wound on the shaft body 1; the spiral direction of the first crushing cutter 2 is opposite to that of the second crushing cutter 3; the second crushing cutter 3 is arranged on one side of the first crushing cutter 2, which is far away from the feeding end of the shaft body 1; the outer circumference arc surface of the first crushing cutter 2 and the outer circumference arc surface of the second crushing cutter 3 are provided with crushing teeth 21.

The embodiment can be applied to the sludge energy treatment industry, and can also be applied to other materials which need to be crushed and conveyed simultaneously, and the details are not repeated.

More specifically, the first crushing cutter 2 and the second crushing cutter 3 may be integrally formed with the shaft body 1, and the first crushing cutter 2 and the second crushing cutter 3 may also be fixed to the shaft body 1 by welding; the starting end of the first crushing cutter 2 can be arranged on the feeding end of the shaft body 1 or close to the feeding end of the shaft body 1; similarly, the terminating end of the first crushing cutter 2 can be arranged on the discharging end of the shaft body 1 or close to the discharging end of the shaft body 1; because be responsible for carrying out the broken transport to the material by first broken sword 2, consequently the distribution length of first broken sword 2 on the axis body 1 is greater than the distribution length of second broken sword 3 on the axis body 1, can effectively prolong the residence time of material at first broken sword 2 like this, is favorable to first broken sword 2 to carry out abundant breakage to the material.

The beneficial effect of this embodiment is: (1) in the embodiment, the shaft body 1 can rotate to drive the spiral first crushing cutter 2 and the spiral second crushing cutter 3 to rotate, so that the first crushing cutter 2 can crush materials input from the feeding end, and the crushed materials can be continuously conveyed to the discharging end by utilizing the characteristic of pushing the materials to move when the shaft body rotates in a spiral manner, so that the materials can be conveyed and crushed at the same time; meanwhile, the arc surface of the periphery of the first crushing cutter 2 is also provided with the crushing teeth 21, so that the crushing effect of the first crushing cutter 2 on materials can be greatly improved, and the crushing device has the advantages of small occupied space, low operation cost and good crushing effect;

(2) because the spiral direction of the second crushing cutter 3 is opposite to that of the first crushing cutter 2, and the second crushing cutter 3 is arranged on one side of the first crushing cutter 2, which is far away from the feeding end of the shaft body 1, after the first crushing cutter 2 crushes the material, the crushed material is conveyed to the second crushing cutter 3 rotating in the opposite direction, and the second crushing cutter 3 can push back the material exceeding the discharge port in the direction close to the first crushing cutter 2, so that the situation that the discharge port is blocked due to excessive material accumulation at the discharge end is prevented; simultaneously, the second crushing cutter 3 and the crushing teeth 21 on the second crushing cutter 3 can crush the material for the second time, so that the situation that the material is agglomerated and bridged again can be prevented, and the technical problems that the material is agglomerated and bridged again easily at a discharge port in the prior art are solved effectively.

Further, in this embodiment, in order to guarantee the crushing effect of first crushing sword 2 to the material, avoid the material not fully broken just carry the discharge end, the circumference distribution angle of first crushing sword 2 is not less than 360. If first broken sword 2 is 360 along the winding of axis body 1 and is the round, often need be provided with several rings with first broken sword 2 in the use, can prolong the distribution length of first broken sword 2 on axis body 1 like this, and then can effectively prolong the residence time of material at first broken sword 2, be favorable to first broken sword 2 can carry out abundant breakage to the material.

Further, in the present embodiment, the circumferential distribution angle of the second crushing blades 3 is less than 360 °. Because the main effect of the second crushing cutter 3 is to prevent the material from overstocking at the discharge gate, the circumferential distribution angle and the distribution length of the second crushing cutter 3 are not too large, which is beneficial to avoiding the normal transportation of the material which is interfered by the second crushing cutter 3 to the excessive reverse driving force of the material.

Further, in this embodiment, a crushing rod 4 is further included, the crushing rod 4 is disposed on the shaft body 1, and the crushing rod 4 is located between the first crushing blade 2 and the second crushing blade 3. Crushing pole 4 also can follow the rotation of axis body 1 to the material that pushes back to the broken sword 3 of second beats, can avoid material secondary caking and bridging, is favorable to guaranteeing that the material of going out from the discharge opening still is broken state.

Further, in this embodiment, broken pole 4 is a plurality of, and a plurality of broken poles 4 are along the circumference evenly distributed of axis body 1, also is a plurality of broken poles 4 along not equidirectional distribution on the circumference of axis body 1, sets up like this and guarantees that broken pole 4 can carry out all-round the beating and the stirring to the material that the broken sword 3 of second pushed back, is favorable to avoiding the material the condition emergence of secondary caking and bridge.

Further, in the present embodiment, the cross section of the crushing teeth 21 may be triangular, rectangular, trapezoidal, semicircular or other shapes, as long as the crushing teeth 21 can generate the crushing effect on the material. The crushing teeth 21 are integrally formed with the first crushing blade 2 or the second crushing blade 3, and the crushing teeth 21 and the crushing blades are made of a hard material to secure cutting hardness of the crushing teeth 21 and the crushing blades.

Further, in the present embodiment, the crushing teeth 21 are plural, and the plural crushing teeth 21 are arranged on the first crushing blade 2 and the second crushing blade 3 in a wavy or zigzag manner, which is beneficial to improving the crushing efficiency and the crushing effect of the first crushing blade 2 and the second crushing blade 3.

Further, in this embodiment, the distance from the cutting edge of the second crushing cutter 3 to the shaft body 1 is not less than the distance from the cutting edge of the first crushing cutter 2 to the shaft body 1, so that the circumferential operating range of the second crushing cutter 3 for pushing back the material is not less than the circumferential crushing range of the first crushing cutter 2, which is beneficial to ensuring the current limiting effect of the second crushing cutter 3 on the material, thereby preventing the occurrence of the situation that the discharge port is blocked due to the excessive overstocking of the material at the discharge end.

Further, in the present embodiment, a connecting line between the termination point of the first crushing blade 2 and the termination point of the second crushing blade 3 is parallel to the axis of the shaft body 1, that is, the termination point of the first crushing blade 2 and the termination point of the second crushing blade 3 are projected and overlapped along the axial direction of the shaft body 1; the circumference distribution angle of the broken sword 3 of second is preferred 180, set up like this and be favorable to the broken sword 3 of second and last half a circle (180) first broken sword 2, both are complementary 360 along the projection of 1 direction of axis body, that is to say that the material that comes out from the transport of first broken sword 2 most all need pass through the broken sword 3 of second and just can be carried to discharge gate department, make the broken good material of the broken sword 3 of second whole transport to the discharge gate once like this, be favorable to preventing that the too much overstock of material of discharge end from causing the condition of discharge gate jam to take place.

More specifically, referring to fig. 1, the termination point of the first crushing cutter 2 is a point a in fig. 1, and the termination point of the second crushing cutter 3 is a point B in fig. 1, that is, the final material output direction of the first crushing cutter 2 is exactly aligned to the side wall of the second crushing cutter 3, which is beneficial to preventing the material crushed by the second crushing cutter 3 from being completely conveyed to the discharge hole at a time.

Further, in this embodiment, two ends of the shaft body 1 are respectively connected with the first spline housing 11 and the second spline housing 12, and the first spline housing 11 and the second spline housing 12 are respectively used for being connected with the power device and the shaft end bearing mechanism, so that the power device drives the shaft body 1 to rotate.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spiral conveying shaft is characterized by comprising a shaft body, a first crushing cutter and a second crushing cutter;

2. The auger shaft of claim 1, wherein the first crushing knives are circumferentially distributed at an angle of not less than 360 °.

3. The auger shaft of claim 1, wherein the second crushing knives are circumferentially distributed at an angle of less than 360 °.

4. The auger shaft of claim 1, further comprising a breaker bar disposed on the shaft body and located between the first breaker knife and the second breaker knife.

5. The auger shaft according to claim 4, wherein the crushing rod is plural, and the plural crushing rods are uniformly distributed along a circumferential direction of the shaft body.

6. The auger shaft of claim 1, wherein the crushing teeth are triangular, rectangular, trapezoidal or semi-circular in cross-section.

7. The auger shaft according to claim 1, wherein said crushing teeth are plural and are arranged in a wave-like or zigzag pattern on said first crushing blade and said second crushing blade.

8. The auger shaft of claim 1, wherein the distance from the cutting edge of the second crushing blade to the shaft body is no less than the distance from the cutting edge of the first crushing blade to the shaft body.

9. The auger shaft of claim 1, wherein a line connecting the termination point of the first crushing blade and the termination point of the second crushing blade is parallel to the axis of the shaft body.

10. The auger shaft according to any one of claims 1-9, wherein spline housings are attached to both ends of the shaft body.