CN214454281U - Wear-resistant scraper - Google Patents

Abstract

The application discloses a wear-resistant scraper blade, which comprises a scraper blade body, wherein a scraper axe is formed at the end part of the scraper blade body, the scraper blade body is provided with a material scraping side for pushing materials, the scraper blade structure further comprises an elastic wear-resistant body, the elastic wear-resistant body comprises an elastic supporting part, an elastic material blocking part and a rolling part, the elastic supporting part is installed on the scraper axe, and the rolling part is arranged on the top surface and/or the bottom surface of the elastic supporting part; the elastic supporting part and the elastic material blocking part are integrally formed, and at least part of the elastic material blocking part is coated on the material scraping side. The scraper blade structure disclosed in the application has the advantages of compact structure, good wear resistance and buffering performance, convenience in installation and maintenance, long service life and the like.

Description

Wear-resistant scraper

Technical Field

The application relates to the technical field of scraper conveyors, in particular to a wear-resistant scraper.

Background

Scraper conveyors used in various industrial processes are the main transport equipment for continuously transporting particulate materials, especially in the mining field, such as coal mining, and can be well matched with mining equipment to serve as a movable support rail of the mining equipment, and particularly, when the scraper conveyor is applied to the current coal mining operation, the scraper conveyor functions not only as a coal and material transport carrier but also as a running rail of a coal mining machine, so that the scraper conveyor becomes indispensable main equipment in the modern coal mining process. The scraper conveyor can keep continuous operation, and the production can be normally carried out. Otherwise, the whole coal face will be in a production stop state, so that the whole production is interrupted.

The size and volume of material transported and the reliability are essential characteristics that should be provided during the life of the scraper conveyor. In a complete set of scraper conveyors, a scraper is one of key parts of the scraper, which influence the efficiency and reliability of the conveyors, and is also the part with the largest usage amount of mining equipment, the largest demand amount of accessories and the most easy loss, which directly influences the production cost, and particularly, the scraper made of high-cost materials is adopted, so that the production cost is higher, and therefore, the innovative design and the improved design aiming at the scraper are important components in the design of the scraper conveyors.

One of the main reasons for the failure of the scraper conveyor is that under severe working conditions, the scraper is severely abraded by friction, and the coal and air on the coal mining working face contain corrosive substances such as sulfur, phosphorus and the like, which also causes the corrosion of the scraper to be intensified. Most of scraper conveyors for coal mines are forged products made of alloy steel, the scraper conveyors are heavy in weight, large in frictional resistance and low in flexibility, scrapers and ledge bottom plates are subjected to dynamic-load static-pressure frictional wear, particularly extrusion wear with ledges and coal mine materials seriously affects the service life of the scraper conveyors, and the maintenance cost is increased.

In addition, the scraper is made of hard alloy steel, and materials such as coal mined by coal mining equipment are collided with the scraper in the blanking process, so that large blocks of coal can be crushed to influence the quality of the coal, and the economic index of mining is reduced from another aspect.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

The application provides a wear-resisting scraper blade, its wear-resisting and shock-absorbing capacity under the atress is good.

The application is realized by the following technical scheme:

a wear-resistant scraper comprises a scraper body, wherein a scraper axe is formed at the end part of the scraper body, the scraper body is provided with a material scraping side for pushing materials, the scraper further comprises an elastic wear-resistant body, the elastic wear-resistant body comprises an elastic supporting part, an elastic material blocking part and a rolling part, the elastic supporting part is mounted on the scraper axe, and the rolling part is arranged on the top surface and/or the bottom surface of the elastic supporting part; the elastic supporting part and the elastic material blocking part are integrally formed, and at least part of the elastic material blocking part is coated on the material scraping side.

The elastic material blocking part is arranged on the material scraping side in a wrapping mode, so that the abrasion conditions of the scraper axe, the conveying groove and the coal material are reduced. And, the scraper blade inefficacy part is mainly the elasticity wear-resisting body, and the scraper blade body hardly produces wearing and tearing, when changing or maintaining the scraper blade, only need go on to the elasticity wear-resisting body, reduces the maintenance cost, also can improve the efficiency of maintaining. In addition, at the in-process of scraping transportation coal charge, elasticity keeps off the material portion and can cushion the coal charge through self elasticity, takes up partial impact force, and this just can reduce the reverse impact of scraping the material side that receives after the coal charge blanking to a certain extent, can reduce the broken incident of coal charge, increases the proportion of cubic coal in the coal charge, promotes the quality of producing the coal. The elastic supporting part and the elastic material blocking part are integrally formed, so that the elastic material blocking part is convenient to process and install and has a compact structure. In addition, the arrangement of the rolling bodies changes the friction mode between the scraper and the material conveying groove from the original sliding friction contact into rolling friction contact, and the friction resistance between the scraper and the groove plate can be greatly reduced by reducing the friction coefficient, so that the power consumption of the driving device for driving the scraper is reduced, and the reduction of the load energy consumption of the scraper conveyor is finally realized.

In an exemplary embodiment of the wear-resistant scraper, the scraper axe is provided with a first mounting groove, the elastic supporting part is embedded and mounted in the first mounting groove, and the elastic material blocking part passes through the opening part of the first mounting groove and covers the scraper side. The installation of the elastic wear-resistant body is more convenient, the production efficiency is improved, the friction between the edge of the scraping side and the conveying groove can be reduced, and the abrasion to the scraping plate body is further reduced.

In an exemplary embodiment of the wear-resistant squeegee, the first mounting slot extends through upper and lower end faces of the squeegee axe.

In an exemplary embodiment of the wear-resistant scraper, both the top surface and the bottom surface of the elastic support portion are provided with the rolling portion. The scraper can be in rolling friction contact with the upper end and the lower end of the conveying groove, so that the abrasion to the scraper body is further reduced, and the flexibility of the scraper in sliding is improved.

In an exemplary embodiment of the wear-resistant scraper, a second mounting groove is formed in the inner concave side of the outer side wall of the scraper side, and the elastic material blocking part is mounted in the second mounting groove in an embedded manner. One mounting position can be provided for the elastic material blocking part, so that the elastic material blocking part is convenient to align and mount, and the assembly stability is improved; secondly also can make the surface structure of scraping the material side more smooth-going compact, also make things convenient for the fixed of the wear-resisting body of elasticity simultaneously.

In an exemplary embodiment of the wear-resistant scraper, the elastic wear-resistant body is provided with a first mounting hole arranged transversely, the scraper axe is provided with a first mounting position, and the wear-resistant scraper further comprises a connecting piece which penetrates through the first mounting hole and is connected with the first mounting position. The elastic wear-resistant body is fixed on the scraper axe through the connecting piece, so that the elastic wear-resistant body is prevented from being separated from the mounting groove to influence the normal operation of the scraper conveyor.

In an exemplary embodiment of the wear-resistant scraper, the connecting element is a pin that is inserted into the elastic wear-resistant body in an interference fit. The bolt installation is convenient with the dismantlement, and interference fit can further improve the assembly stability of the wear-resisting body of elasticity and scraper blade body moreover.

In an exemplary embodiment of the wear-resistant scraper, the cross section of the elastic support is arranged to be smaller in the direction of being fitted into the first mounting groove. The installation and the dismantlement of elastic support portion have been made things convenient for to improve production efficiency to a certain extent.

In an exemplary embodiment of the wear-resistant scraper, the first mounting groove has an opening at a top of the scraper axe, and the elastic support portion is integrally connected with the elastic dam portion at an upper side of the scraper axe; or the first mounting groove is provided with an opening at the bottom of the scraper axe, and the elastic supporting part and the elastic material blocking part are integrally connected at the lower side of the scraper axe. The elastic supporting portion and the elastic material blocking portion are integrally connected to the upper side of the scraper axe to be beneficial to installation and disassembly of the elastic wear-resistant body, and the elastic supporting portion and the elastic material blocking portion are integrally connected to the lower side of the scraper axe to be beneficial to protecting the edge of the scraping side so as to reduce friction between the bottom edge of the scraping side and the conveying groove and coal materials and reduce abrasion of the scraper body.

In an exemplary embodiment of the wear resistant blade, the elastic wear body is a polyurethane elastic wear body. The polyurethane has the advantages of oil resistance, wear resistance, low temperature resistance, aging resistance, high hardness, elasticity and the like, and compared with metal, the polyurethane material has simpler forming process, lower manufacturing cost and easier guarantee of processing precision, thereby becoming an ideal material for manufacturing elastic wear-resistant bodies.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the present drawings:

FIG. 1 is a first schematic view of the assembly of the wear resistant blade provided herein;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is a second schematic view of the assembly of the wear resistant blade provided herein;

FIG. 4 is a first schematic structural view of an elastic wear body provided herein;

FIG. 5 is a schematic structural view II of the elastic wear-resistant body provided by the present application;

FIG. 6 is a first schematic structural view of a squeegee body provided herein;

FIG. 7 is an enlarged partial schematic view of FIG. 6;

fig. 8 is a second schematic structural diagram of the scraper body provided in the present application.

Reference numerals:

1, a scraper blade body, 11 scraper blades, 111 scraper blade sides, 112 first installation grooves, 113 second installation grooves and 12 scraper blade middle sections;

2, an elastic wear-resistant body, 21 elastic supporting parts, 22 elastic material blocking parts and 23 rolling parts;

3, connecting pieces.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "upper," "lower," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationships indicated in the drawings, and are used for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 8, a wear-resistant scraper comprises a scraper body 1, an end of the scraper body 1 forms a scraper axe 11, the scraper body 1 has a scraping side 111 for pushing a material, the scraper further comprises an elastic wear-resistant body 2, the elastic wear-resistant body 2 comprises an elastic supporting part 21, an elastic material blocking part 22 and a rolling part 23, the elastic supporting part 21 is mounted on the scraper axe 11, and the rolling part 23 is arranged on the top surface and/or the bottom surface of the elastic supporting part 21; the elastic supporting portion 21 and the elastic material blocking portion 22 are integrally formed, and at least part of the elastic material blocking portion 22 covers the scraping side 111.

Specifically, as shown in fig. 1 and fig. 2, the scraper includes a scraper body 1, the scraper body 1 is composed of a scraper middle section 12 and scraper axes 11 located at two ends of the scraper middle section 12, the scraper middle section 12 mainly moves in cooperation with a chain in the operation process of a scraper conveyor, the scraper axes 11 are main parts for pushing coal to operate, and are most frequently impacted by the coal, and therefore, are most easily worn by the coal, and the elastic material blocking portion 22 is arranged to cover the scraper sides 111, so that the wear conditions of the scraper axes 11 and a conveying trough as well as the wear conditions of the scraper axes 11 and the coal are certainly reduced. And, the failure part of scraper blade is mainly in elasticity wear-resisting body 2, scraper blade body 1 hardly produces wearing and tearing, when changing or maintaining the scraper blade, only need go on to the supporter, reduces the maintenance cost, also can improve the efficiency of maintaining. In addition, in the process of scraping and transporting the coal material, the coal material can be buffered through all the elasticity of the coal material, and part of impact force can be absorbed, so that the reverse impact of the scraping side 111 after the coal material is dropped can be reduced to a certain extent, the breaking event of the coal material can be reduced, the proportion of blocky coal in the coal material is increased, and the quality of produced coal is improved. In addition, the rolling part 23 is arranged to change the friction mode between the scraper axe 11 and the material conveying groove from the original sliding friction contact into rolling friction contact, and the friction resistance between the scraper axe 11 and the groove plate can be greatly reduced by reducing the friction coefficient, so that the power consumption of the driving device for driving the scraper is reduced, and finally the load energy consumption of the scraper conveyor is reduced.

It should be noted that, in order to further simplify the processing procedure and the installation procedure, the elastic supporting portion 21 and the elastic material blocking portion 22 are integrally formed by injection molding, which facilitates the installation of the elastic wear-resistant body 2 and makes the structure of the scraper blade after assembly more compact.

As a specific embodiment of the present invention, in this embodiment, the scraper axe 11 is provided with a first mounting groove 112, the elastic supporting portion 21 is embedded and installed in the first mounting groove 112, the top of the scraper side 111 is formed with a groove shape or a hole shape structure for the elastic material blocking portion 22 to pass through, and the elastic material blocking portion 22 passes through the groove shape or the hole shape structure to cover the scraper side 111. The groove-shaped and hole-shaped structures can limit the elastic material blocking portion 22 and prevent the elastic material blocking portion 22 from deviating or deviating.

As a preferred embodiment of the present invention, in this embodiment, as shown in fig. 6 and 7, the scraper axe 11 is provided with a first mounting groove 112, the elastic supporting portion 21 is fitted and mounted in the first mounting groove 112, and the elastic blocking portion 22 covers the scraper side 111 over the mouth of the first mounting groove 112. During specific production, the elastic support body can be embedded on the scraper axe 11 in one step, so that the installation is convenient, the production efficiency is improved, and the production benefit is improved. In addition, the elastic material blocking part 22 wraps the edge of the scraper side 111, so that the friction between the scraper body 1 and the conveying trough and the impact of coal can be further reduced, and the abrasion is reduced.

As a preferred example of the present embodiment, as shown in fig. 7 and 8, the first mounting groove 112 penetrates through the upper and lower end surfaces of the scraper axe 11. Further, the rolling portions 23 are provided on both top and bottom surfaces of the elastic support portion 21. The rolling parts 23 are arranged on the top surface and the bottom surface of the elastic supporting part 21, and the rolling parts 23 are arranged on the upper end surface and the lower end surface of the scraper axe 11, so that the sliding friction contact of the upper side and the lower side of the scraper body 1 moving in the conveying chute is changed into the rolling friction contact, the rolling friction contact mode is bound to reduce the abrasion condition of the scraper body 1 and the ledge of the conveying chute, particularly the elastic supporting part 21 constructed by matching a non-metal elastic body, the contact between the rolling parts 23 and the conveying chute can be buffered by the elastic supporting part 21, and the running stability of the chain assembly in the rolling friction contact process is further improved. The most direct effect is that the wear loss of scraper blade body 1 and conveyer trough all reduces by a wide margin, the change of scraper blade, maintenance cycle all prolongs by a wide margin, and more traditional alloy steel scraper blade can prolong more than at least three times basically to, because the change of frictional contact mode, the scraper blade inefficacy part mainly takes place elasticity wear-resisting body 2, scraper blade body 1 produces wearing and tearing hardly, when changing or maintaining the scraper blade, only need to aim at elasticity wear-resisting body 2 goes on, reduces the maintenance cost, also improves the efficiency of maintaining.

In the present invention, the rolling portion 23 is not particularly limited in structure, and may be a ball-and-socket structure that is integrally formed with the elastic support portion 21, thereby simplifying the mounting process. Of course, other suitable configurations may be used, such as a universal wheel configuration, etc.

As a preferred example of the present embodiment, as shown in fig. 7, a second mounting groove 113 is formed in the inner wall of the scraping side 111, and the elastic blocking portion 22 is fitted into the second mounting groove 113. The second mounting groove 113 can provide a mounting position for the elastic material blocking part 22, so that the elastic material blocking part 22 can be conveniently mounted in a contraposition manner, and the assembly stability is improved; secondly, the surface structure of the scraping side 111 can be made smoother and more compact, and the elastic wear-resistant body 2 can be conveniently fixed.

As a preferred example of the present embodiment, as shown in fig. 1, 2 and 7, the elastic wear-resistant body 2 is provided with a first mounting hole arranged transversely, the axe 11 is provided with a first mounting position, the wear-resistant scraper further comprises a connecting piece 3, and the connecting piece 3 penetrates through the first mounting hole and is connected with the first mounting position. The elastic wear-resistant body 2 is fixed on the scraper axe 11 through the connecting piece 3, so that the elastic wear-resistant body 2 is prevented from being separated from the scraper axe 11 in the process that the scraper pushes materials to run, the production process is influenced, and the production efficiency is reduced.

As a preferred example of this embodiment, as shown in fig. 2, the connecting element 3 is a plug inserted into the elastic wear-resistant body 2 in an interference manner. In concrete production and to when the scraper blade was maintained, the setting up of bolt has made things convenient for the installation and the dismantlement of elasticity wear-resisting body 2, moreover elasticity wear-resisting body 2 with bolt interference fit can further improve the structural strength and the assembly stability of scraper blade. Of course, the connecting member 3 may also be other suitable structures, such as a bolt or a stud fastener, and the application is not limited in particular.

As a preferred example of the present embodiment, as shown in fig. 2, 4 and 5, the cross section of the elastic support portion 21 is set to be smaller in a direction of being fitted into the first mounting groove 112. It should be understood that, during a specific installation process, the elastic support portion 21 is inserted into the first installation groove 112 from a small end, so as to be aligned with the first installation groove 112, and the situation that the bottom of the elastic support portion 21 abuts against the top of the first installation groove 112 and is difficult to insert is avoided, so that the assembly speed is increased to a certain extent.

In the present application, the connection and installation manner of the elastic wear-resistant body 2 is not particularly limited, and any one of the following embodiments may be adopted:

the first embodiment is as follows: in the present embodiment, as shown in fig. 2 and 7, the first mounting groove 112 has an opening at the top of the scraper axe 11, and the elastic supporting portion 21 and the elastic material blocking portion 22 are integrally connected at the upper side of the scraper axe 11. In particular, the elastic support portion 21 is directly inserted into the first mounting groove 112 from the top of the scraper axe 11, and when the scraper is maintained, the elastic support portion 21 can be drawn out from the first mounting groove 112 without detaching the scraper, so that the mounting and maintenance processes are simplified.

Example two: in the present embodiment, the first mounting groove 112 has an opening at the bottom of the scraper axe 11, and the elastic supporting portion 21 and the elastic stopping portion 22 are integrally connected at the lower side of the scraper axe 11. When the scraper blade pushes the coal to advance, the elastic wear-resistant body 2 coats the bottom edge of the scraper side 111, so that friction between the bottom edge of the scraper side 111 and the conveying groove and the coal is reduced, abrasion of the scraper blade body 1 is further reduced, the service life of the scraper blade is prolonged, and user experience is pleased.

As a preferred embodiment of the present application, all the aforementioned embodiments, examples and examples of the present application may make the elastic wear-resistant body 2 a polyurethane elastic wear-resistant body. The manufacturing and forming process of the polyurethane material is mature, and the polyurethane elastomer has the advantages of good tensile strength, high tear strength and elongation, excellent wear resistance, low rolling resistance, large load bearing capacity, good vibration absorption and damping effects, hydrolysis resistance, impact resistance, oil resistance, solvent resistance, general chemical resistance and the like, and becomes an ideal material for manufacturing the elastic wear-resistant body 2. Moreover, the polyurethane elastomer can be recycled and easily degraded, does not cause too much burden to the environment, and is compatible with the current environmental protection policy. In addition, the polyurethane elastomer is a raw material, only a mold needs to be opened, the elastic wear-resistant body 2 structure product which meets the design requirement is directly formed through one-step injection molding, the production rate is high, and the production benefit of the scraper plate is well promoted.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A wear-resistant scraper comprises a scraper body, the end part of the scraper body forms a scraper axe, the scraper body is provided with a material scraping side for pushing materials, and the wear-resistant scraper is characterized in that,

the scraper further comprises an elastic wear-resistant body, the elastic wear-resistant body comprises an elastic supporting part, an elastic material blocking part and a rolling part, the elastic supporting part is mounted on the scraper axe, and the rolling part is arranged on the top surface and/or the bottom surface of the elastic supporting part; the elastic supporting part and the elastic material blocking part are integrally formed, and at least part of the elastic material blocking part is coated on the material scraping side.

2. The wear-resistant scraper blade of claim 1 wherein the scraper axe is provided with a first mounting groove, the elastic support portion is fitted in the first mounting groove, and the elastic material blocking portion passes over the mouth of the first mounting groove and covers the scraper side.

3. The wear-resistant squeegee of claim 2, wherein the first mounting slot extends through both the upper and lower end faces of the squeegee axe.

4. A wear-resistant blade as claimed in claim 3, characterized in that the top and bottom surfaces of the resilient support are provided with the rolling portions.

5. The wear-resistant scraper blade of claim 2 wherein the outer side wall of the scraper side is recessed to form a second mounting groove, and the elastic material blocking part is embedded and mounted in the second mounting groove.

6. The wear-resistant scraper blade of claim 2 characterized in that the resilient wear-resistant body is provided with a first transversely disposed mounting hole, the scraper axe is provided with a first mounting location, and the wear-resistant scraper blade further comprises a connecting member which is connected to the first mounting location through the first mounting hole.

7. The wear resistant flight of claim 6 wherein the connector is a pin that is interference fit with the resilient wear body.

8. The wear resistant flight of claim 2, wherein the cross-section of the resilient support is tapered in the direction of insertion into the first mounting groove.

9. The wear-resistant scraper blade of claim 2, characterized in that the first mounting groove has an opening at the top of the scraper axe, the resilient support portion and the resilient dam portion being integrally connected at the upper side of the scraper axe; alternatively, the first and second electrodes may be,

the first mounting groove is provided with an opening at the bottom of the scraper axe, and the elastic supporting part and the elastic material blocking part are integrally connected at the lower side of the scraper axe.

10. A wear resistant scraper blade as claimed in any one of claims 1 to 9, characterized in that said elastic wear resistant body is a polyurethane elastic wear resistant body.

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