CN110271825B

CN110271825B - Reinforced screw conveyer of modified asphalt production line

Info

Publication number: CN110271825B
Application number: CN201910453489.0A
Authority: CN
Inventors: 远义广; 潘洪朋; 王加富; 王艳飞
Original assignee: Shandong Honfar Waterproof Building Material Co ltd
Current assignee: Shandong Honfar Waterproof Building Material Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2022-01-18
Anticipated expiration: 2039-05-28
Also published as: CN110271825A

Abstract

The invention discloses a charging screw conveyor for a modified asphalt production line, which comprises a paddle, a plurality of sections of auger rods for transmission and a connecting mechanism for connecting the plurality of sections of auger rods, wherein the paddle is fixedly connected with the plurality of sections of auger rods; the lubricating mechanism comprises a conduit capable of guiding a lubricant, and the lubricant can infiltrate the connecting mechanism after passing through the conduit; the paddle, the multi-section auger rods and the connecting structure are all arranged in the outer barrel, the outer barrel is at least provided with an outlet for feeding, and the diameter of the paddle at the outlet is smaller than that of the paddle outside the outlet. According to the invention, the multiple sections of auger rods are used, and the auxiliary connecting pieces are used for connecting the multiple sections of auger rods, so that the problem that the overlong auger rods are easy to break is solved; meanwhile, the bearing is lubricated in consideration of the fact that the rotation of the auger rod depends on the bearing, and the bearing is ensured to be continuously lubricated in the rotation process of the auger rod.

Description

Reinforced screw conveyer of modified asphalt production line

Technical Field

The invention relates to the field of screw conveyors, in particular to a charging auger of an SBS production line.

Background

The modified asphalt is an asphalt binder prepared by adding external additives (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers or by adopting measures such as mild oxidation processing of the asphalt and the like, so that the performance of the asphalt or the asphalt mixture is improved. In the production process of modified asphalt, various additives and auxiliary materials are generally required to be transported, and a screw conveyor is a common conveying device and is widely applied to the production of modified asphalt due to large conveying capacity, good sealing performance and high efficiency.

The inventors have found that in the production of modified asphalt, conventional screw conveyors are generally faced with the problem that, firstly, because of the large production capacity of modified asphalt under certain circumstances, they need to be processed and temporarily stored in a plurality of storage silos having a volume of 50 cubic meters or more, and the transportation between the silos becomes a problem. Among the current screw conveyer, carry the distance overlength, the length of auger will be corresponding longer, but the auger length is bending deformation easier than the overlength, can lead to the fracture even when serious, and whole equipment just can't continue work like this, causes the wasting of resources, influences the job schedule.

In the prior publication, a combined packing auger is disclosed, which comprises a plurality of packing augers connected in series, a connecting shaft is arranged between the adjacent packing augers and is connected with the end part of a packing auger rod, and when one packing auger is seriously worn, the packing auger can be disassembled and replaced. The inventor believes that the existing multi-segment combined screw conveyor has a certain use value, but is easy to wear at the connection part of the multi-segment screw conveyor in the production process, and the service life of the multi-segment combined screw conveyor is greatly shortened due to the wear.

In addition, the inventor also believes that the existing multi-section screw conveyor still does not solve the problem of beating the blades during feeding.

Disclosure of Invention

Aiming at the defects of easy abrasion and easy knockout of the traditional multi-section spiral conveyor, the invention aims to provide the charging spiral conveyor for the modified asphalt production line, which can reduce the tacit calculation of the joint of a multi-section auger and prolong the service life of the multi-section auger.

The invention aims to provide a charging screw conveyor for a modified asphalt production line.

In order to realize the purpose, the invention discloses the following technical scheme:

a modified asphalt production line feeding screw conveyor comprises a paddle, a plurality of sections of auger rods for transmission and a connecting mechanism for connecting the auger rods, wherein the paddle is fixedly connected to the auger rods, and the auger rods are connected through the connecting mechanism; the lubricating mechanism comprises a conduit capable of guiding a lubricant, and the lubricant can infiltrate the connecting mechanism after passing through the conduit;

the paddle, the multi-section auger rods and the connecting structure are all arranged in the outer barrel, the outer barrel is at least provided with an outlet for feeding, and the diameter of the paddle at the outlet is smaller than that of the paddle outside the outlet.

Furthermore, the connecting mechanism comprises a connecting piece, a bearing and a bearing seat, the multiple sections of screw rods are connected through the connecting piece, the end parts of the multiple sections of screw rods and/or the connecting piece are fixedly connected with the inner ring of the bearing, and the outer ring of the bearing is fixedly connected with the outer cylinder through the bearing seat.

Further, the connecting piece is one or more of a sleeve, a rivet, a bolt, a welding rod, a pin, a nail or a key.

Further, an inner ring surface of the bearing seat forms a mounting surface for mounting a bearing; the bearing seat is provided with a lubricant supply channel for guiding lubricant into the inner cavity of the bearing seat and a lubricant return channel for guiding the lubricant out of the inner cavity of the bearing seat along the radial direction of the bearing seat.

Furthermore, the bearing seat is provided with an opening communicated with a lubricant supply channel, and the tail end of the conduit can be embedded in the opening.

Further, the bearing is a graphite bearing.

Further, the urceolus includes the multistage, and adjacent urceolus communicates.

Further, the outer barrel is provided with an opening for fitting the catheter.

Further, the lubricating mechanism further comprises a funnel-shaped container used for containing the lubricant, and the container is communicated with the guide pipe.

Furthermore, among the multiple sections of auger rods, auger rods at two ends are respectively connected with a power source, and the power sources synchronously rotate.

The operation principle of the invention can be summarized as follows: .

Compared with the prior art, the invention has the following beneficial effects:

(1) according to the invention, the multiple sections of auger rods are used, and the auxiliary connecting pieces are used for connecting the multiple sections of auger rods, so that the problem that the overlong auger rods are easy to break is solved; meanwhile, the bearing is lubricated in consideration of the fact that the rotation of the auger rod depends on the bearing, and the bearing is ensured to be continuously lubricated in the rotation process of the auger rod.

(2) According to the invention, the material openings of the multi-section auger rods are improved, so that the friction between the blades and the outer cylinder caused by the sound production change of the actual diameter of the outer cylinder due to the arrangement of the material openings is reduced, and the service life of the blades is further prolonged.

(3) In the invention, the graphite bearing is used, so that the lubricant contained in the lubricating mechanism can enter the bearing through the guide pipe and the lubricant supply channel to lubricate the bearing; meanwhile, the guide pipe is directly communicated with the lubricant supply channel of the bearing seat, so that the lubricant can be supplied in real time, and the lubricant can be supplied by means of gravity.

(4) According to the invention, a plurality of power sources are used, and the plurality of power sources synchronously rotate, so that the conveying efficiency of the spiral conveyor is further increased. .

(5) In the invention, the outer barrel also comprises a plurality of sections, and when the outer barrel needs to be repaired, the multi-section combined outer barrel is also convenient to disassemble and maintain.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is an external schematic view of example 1,

FIG. 2 is a sectional view of embodiment 1 taken along A-A in FIG. 1,

figure 3 is an enlarged view of portion a of figure 2,

fig. 4 is an enlarged view of a portion B in fig. 2.

In the figure, 11, a first auger rod, 12, a second auger rod, 21, a first outer cylinder, 211, a flange, 22, a second outer cylinder, 23, an opening, 31, a first blade, 32, a second blade, 41, a container, 42, a conduit, 5, a graphite bearing, 6, a bearing seat, 7, a rod, 8, a sleeve, 9, a material inlet, 321, a blade located outside the opening position, 322, and a blade located at the opening position.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As described in the background art, the existing multi-section screw conveyor has the defects of easy abrasion and easy material beating, the invention aims to provide a modified asphalt production line charging screw conveyor which can reduce the tacit of the joint of a multi-section auger and prolong the service life of the multi-section auger, and the invention is further described by combining the attached drawings and the specific embodiment.

Example 1

Referring to fig. 1 to 4, example 1 describes in detail the modified asphalt production line feeding screw conveyor in a specific modified asphalt production environment. As described in the background art, in the production of modified asphalt, a screw conveyor for charging (hereinafter referred to as an auger) is generally connected to a plurality of asphalt storage tanks, and thus the auger is relatively long, and in this embodiment, the overall length of the auger exceeds twenty meters, and therefore, in this embodiment, in order to prevent the auger from undergoing acoustic torsional deformation under its own torsional stress below this length, it is necessary to consider both the structural design and lubrication thereof. In this embodiment, the modified asphalt production line feeding screw conveyor comprises a paddle, a first auger rod 11, a second auger rod 12, a connecting mechanism, a lubricating mechanism and an outer cylinder, wherein the paddle is respectively and fixedly connected to the first auger rod 11 and the second auger rod 12, and in order not to affect the conveying effect of the auger, the end surfaces of the paddles connected to the first auger rod 11 and the second auger rod 12 are completely overlapped; the first auger rod 11 and the second auger rod 12 are connected through a connecting mechanism; the lubrication means comprises a conduit 42 capable of conducting a lubricant which is capable of wetting the connection means after passing through the conduit 42.

The paddle, the first auger rod 11, the second auger rod 12 and the connecting structure are all arranged in the outer barrel, the bottom of the outer barrel is connected with an asphalt storage tank through an outlet, the top of the outer barrel is also provided with an outlet, and the diameter of the paddle at the outlet is smaller than that of the paddle outside the outlet. The bottom, top is here in the direction of gravity with respect to the first auger lever 11.

In the present embodiment, a first paddle 31 and a second paddle 32 are attached to the outer sides of the first and

second auger shafts

11 and 12, respectively.

The lubrication means comprises a funnel-shaped reservoir 41, the outlet end of the reservoir 41 communicating with a conduit 42, in this embodiment lubrication is performed using a lubricant, which is stored in the reservoir 41 and which, under the influence of gravity, passes through the conduit 42 to the connection means.

It should be noted that the conduit of the lubricating mechanism is capable of entering and exiting through the opening of the outer cylinder so as not to interfere with the movement of the blade. I.e. the lubrication

The outer barrel comprises a plurality of sections, the outer barrel is a channel for conveying materials by the screw conveyor, the materials move in the outer barrel along the axial direction of the outer barrel, and the materials provide power by means of the screw motion of the outer barrel and the blades. Therefore, when the outer cylinders comprise multiple sections, the sealing of the outer cylinders is particularly critical, in the embodiment, when the adjacent outer cylinders are connected, the gasket is used for auxiliary sealing, and considering that the screw conveyor mainly transports auxiliary materials of modified asphalt, such as rubber, resin, high molecular polymer, ground rubber powder or other fillers, and other additives (modifiers), rather than liquid, in the embodiment, the sealing requirement is relatively low, and the adjacent outer cylinders are connected by the flanges 211 through threads.

In this embodiment, the outer sleeve includes three segments.

The outer edge of the paddle is tightly attached to the inner side of the outer barrel so as to facilitate material transportation; at the opening 23, due to the opening 23, when materials enter and exit, the edges of the blades near the opening 23 are easy to adhere to the materials, so that the materials rub against the inner side of the outer barrel along the edges of the blades, abrasion or other damage of the inner sides of the blades or the outer barrel occurs, the diameter of the blades at the outlet is smaller than the radius of the blades outside the outlet by 1-10 mm, and the blades at the opening 23 are processed, so that the subsequent transmission efficiency is not influenced.

In order to connect the first and

second auger shafts

11, 12, the first and

second auger shafts

11, 12 are connected by a sleeve 8. In the embodiment, the sleeve 8 is in interference fit with the first auger rod 11 and the second auger rod 12 to ensure the stability of the shield connection, and the ends of the first auger rod 11, which are in contact with the second auger rod 12, can be welded together by means of auxiliary connection in a welding manner; the function of connecting piece is to reduce the torsional stress that causes because auger pole overlength.

The connecting mechanism further comprises a bearing and a bearing seat 6, and the ends of the multi-section auger rods and/or the connecting pieces are fixedly connected with the inner ring of the bearing. Considering that the edge of the paddle is driven to sweep the inner side of the outer cylinder in the rotating process of the auger rod, the bearing cannot be directly fixed on the inner side of the outer cylinder through the bearing seat 6. In this embodiment, the bearing seat 6 comprises a ring-shaped member and a rod member 7 with one end fixedly connected to the ring-shaped member, the other end of the rod member 7 can be in contact with the outer cylinder, and in the process of rotation of the auger rod, the rod member 7 can rotate along with the auger blade, so as to provide supporting force for the bearing seat 6.

In this embodiment, for lubrication, the graphite bearing 5 is used for the bearing, the working principle of the graphite copper bush bearing is that the self oil absorption and oil discharge processes are utilized to achieve the self-lubricating principle, and under general conditions, the Rongchang graphite copper bush generates heat in the working process, so that the original absorbed oil is heated and then releases oil, and then the purpose of self-lubricating is achieved, and therefore, the lubricant is also necessary to be used.

In order to fill lubricant into the graphite bearing 5 for lubrication, the bearing seat 6 is provided with an opening communicated with a lubricant supply channel, and the tail end of the guide pipe 42 is embedded in the opening.

Further, the lubricating mechanism further comprises a funnel-shaped container 41 for containing the lubricant, and the container 41 is communicated with the conduit 42. The lubricant in this example is a lubricating oil.

The first auger rod 11 and the second auger rod 12 are respectively connected with a motor, and the motors synchronously rotate.

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. A modified asphalt production line feeding screw conveyor comprises a paddle, a plurality of sections of auger rods for transmission and a connecting mechanism for connecting the auger rods, wherein the paddle is fixedly connected to the auger rods, and the auger rods are connected through the connecting mechanism; the lubricating mechanism comprises a conduit capable of guiding a lubricant, and the lubricant can infiltrate the connecting mechanism after passing through the conduit;

the paddle, the multi-section auger rods and the connecting structure are all arranged in the outer barrel, the outer barrel is at least provided with an outlet for feeding materials, and the diameter of the paddle at the outlet is smaller than that of the paddle outside the outlet;

the connecting mechanism comprises connecting pieces, bearings and bearing seats, the multiple sections of screw rods are connected through the connecting pieces, the end parts of the multiple sections of screw rods and/or the connecting pieces are fixedly connected with the inner rings of the bearings, and the outer rings of the bearings are fixedly connected with the outer cylinders through the bearing seats;

the inner ring surface of the bearing seat forms a mounting surface for mounting a bearing; the bearing seat is provided with a lubricant supply channel for guiding lubricant into the inner cavity of the bearing seat and a lubricant return channel for guiding the lubricant out of the inner cavity of the bearing seat along the radial direction of the bearing seat, and the outer side surface of the bearing seat is fixedly connected with a rod piece;

the connecting piece is a sleeve;

the bearing seat comprises a ring-shaped piece and a rod piece, one end of the rod piece is fixedly connected to the ring-shaped piece, the other end of the rod piece is in contact with the outer cylinder, and the rod piece can rotate along with the screw propeller blade in the rotating process of the screw propeller rod;

the guide pipe of the lubricating mechanism can enter and exit from the opening of the outer cylinder, and the bearing is a graphite bearing;

the first auger rod and the second auger rod are connected through a sleeve; the sleeve is in interference fit with the first auger rod and the second auger rod; the end part of the first auger rod, which is contacted with the second auger rod, is welded together;

the outer cylinders comprise a plurality of sections, and adjacent outer cylinders are in flange connection by using threads;

the bearing seat is provided with an opening communicated with a lubricant supply channel, and the tail end of the conduit can be embedded in the opening;

the outer barrel is provided with an opening for fitting the catheter.

2. The modified asphalt production line charging screw conveyor according to claim 1, wherein the lubricating mechanism further comprises a funnel-shaped container for containing the lubricant, and the container is communicated with the conduit.

3. The charging screw conveyor of claim 1, wherein the auger rods at both ends of the multi-section auger rods are respectively connected with a power source, and the power sources synchronously rotate.