CN215796367U - Scraper structure, scraper chain, scraper conveyor and engineering machinery - Google Patents

Abstract

The utility model relates to the technical field of engineering machinery and provides a scraper structure, a scraper chain, a scraper conveyor and engineering machinery, wherein the scraper structure comprises: a squeegee base; at least one wear assembly is located the tip of scraper blade base member along first direction, and wear assembly includes: the first wear-resisting block is connected with the end part; the second wear-resistant block is connected with the end portion, the second wear-resistant block and the first wear-resistant block are arranged along a second direction, the second direction is perpendicular to the first direction, and the second wear-resistant block and the first wear-resistant block are fixed relatively. According to the technical scheme, the first wear-resistant block and the second wear-resistant block have the characteristics of high wear resistance, low friction coefficient, impact resistance and the like, and have good welding performance, and the two wear-resistant blocks can cover and protect the end portions, which are most easily worn, in the scraper base body, so that the scraper structure is a combined wear-resistant scraper, the impact resistance and the wear resistance of the two ends of the scraper structure are improved, and the service lives of a scraper chain and a scraper conveyor are prolonged.

Description

Scraper structure, scraper chain, scraper conveyor and engineering machinery

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a scraper structure, a scraper chain, a scraper conveyor and engineering machinery.

Background

In the related art, the scraper is forged and manufactured from an alloy steel material, and in order to resist severe impact and abrasion which are applied to the scraper during operation, high toughness of the core portion of the scraper and high wear resistance at both end portions are required. Due to the limitation of the material and the heat treatment process, the high toughness and the high wear resistance of the scraper are often not compatible, and the long-time operation can cause fatigue fracture or wear failure of the scraper.

SUMMERY OF THE UTILITY MODEL

In order to solve or improve the technical problem that long-time operation of the scraper can cause fatigue fracture or wear failure, the utility model aims to provide a scraper structure.

Another object of the present invention is to provide a scraper chain having the above scraper structure.

Another object of the present invention is to provide a scraper conveyor having the above scraper chain.

Another object of the present invention is to provide a construction machine having the scraper conveyor.

To achieve the above object, a first aspect of the present invention provides a squeegee structure comprising: a squeegee base; at least one wear assembly is located the tip of scraper blade base member along first direction, and wear assembly includes: the first wear-resisting block is connected with the end part; the second wear-resistant block is connected with the end portion, the second wear-resistant block and the first wear-resistant block are arranged along a second direction, the second direction is perpendicular to the first direction, and the second wear-resistant block and the first wear-resistant block are fixed relatively.

According to the embodiment of the scraper structure provided by the utility model, the first wear-resistant block and the second wear-resistant block have the characteristics of high wear resistance, low friction coefficient, impact resistance and the like, and have good welding performance, and the two wear-resistant blocks can cover and protect the end parts which are most easily worn in the scraper base body, so that the scraper structure is a combined wear-resistant scraper, the impact resistance and the wear resistance at the two ends of the scraper structure are favorably improved, and the service lives of a scraper chain and a scraper conveyor are prolonged.

Specifically, the flight structure includes a flight base and a wear assembly. Wherein, wear-resisting subassembly is located the tip of scraper blade base member along first direction. In other words, the end portion is a part of the squeegee base, and the end portion is located at one end in the first direction in the squeegee base. The number of the end parts is two, namely one end of the scraper substrate is one end part, and the other end of the scraper substrate is the other end part. The number of the wear-resistant components is at least one, namely the number of the wear-resistant components can be one, two or more, and the wear-resistant components are flexibly arranged according to actual requirements in consideration of the size of occupied space, wear resistance, cost and other factors. When the number of the wear-resistant components is one, the wear-resistant components are arranged on one end part; when the number of the wear-resistant components is two, each end part is provided with one wear-resistant component; when the wear assembly is plural, each end is provided with at least one wear assembly.

Further, the wear assembly includes a first wear block and a second wear block. Specifically, the first wear-resistant block is connected with the end of the scraper base body, and the second wear-resistant block is connected with the end of the scraper base body. The second wear-resistant blocks are arranged along a second direction with the first wear-resistant blocks, and the second direction is perpendicular to the first direction. The second wear-resisting block is fixed opposite to the first wear-resisting block.

It is noted that the first direction of the squeegee base is the longitudinal direction, and the second direction of the squeegee base is the height direction. Of course, the first direction and the second direction of the squeegee base can be any other directions.

The scraper conveyor is the main equipment of the underground fully mechanized coal mining face, is used as a coal and material transportation carrier and a coal mining machine running track, and is vital to the normal running of underground coal mining operation. The scraper chain is used as one of the main components and key parts of the scraper conveyor, and directly influences the efficiency and reliability of the scraper conveyor. The working principle of the scraper conveyor is as follows: the open groove body is used as a bearing piece of coal, gangue or materials and the like, and a scraper chain consisting of a scraper and a chain is used as a traction component. A power mechanism of the scraper conveyor drives the chain wheel to rotate, so that the scraper chain runs circularly and drives the material to move along the groove body until the head part is unloaded. The scraper chain performs closed circulation operation around the chain wheel to finish the conveying of the materials. In the process of fully mechanized coal mining, coal gangue frequently slides into a ledge of a middle groove and a scraper, the scraper is seriously abraded, and especially in transition sections of a machine head and a machine tail, the abrasion of the scraper is accelerated due to the influence of the change of the running angle of the scraper and the increase of the tension of a chain; in addition, coal and air on the coal face contain corrosive gases such as sulfur and phosphorus, which also leads to increased wear of the scrapers. In the related art, the scraper is forged and manufactured from an alloy steel material, and in order to resist severe impact and abrasion which are applied to the scraper during operation, high toughness of the core portion of the scraper and high wear resistance at both end portions are required. Due to the limitation of the material and the heat treatment process, the high toughness and the high wear resistance of the scraper are often not compatible, and the long-time operation can cause fatigue fracture or wear failure of the scraper.

In the technical scheme defined by the utility model, the first wear-resistant block and the second wear-resistant block have the characteristics of high wear resistance, low friction coefficient, impact resistance and the like, and have good welding performance, and the two wear-resistant blocks can cover and protect the end parts which are most easily worn in the scraper base body, so that the scraper structure is a combined wear-resistant scraper, the impact resistance and the wear resistance at the two ends of the scraper structure are favorably improved, and the service lives of a scraper chain and a scraper conveyor are prolonged.

In addition, the technical scheme provided by the utility model can also have the following additional technical characteristics:

in the above-described aspect, the squeegee base includes: a connecting portion; the scraper blade base body is provided with a first side and a second side which are oppositely arranged along a second direction, the first wear-resistant block is arranged on the first side of the end part, and the second wear-resistant block is arranged on the second side of the end part.

In this technical solution, the squeegee base includes a connecting portion and two end portions. Specifically, one end of the connecting portion is disposed at one end of the connecting portion along the first direction, and the other end of the connecting portion is disposed at the other end of the connecting portion along the first direction, that is, the two ends are respectively disposed at two ends of the connecting portion. The split type structure of scraper blade base member, the material of connecting portion can be different with the material of tip, and connecting portion have high toughness, and the tip has high wearability to the scraper blade structure still has higher wearability when possessing sufficient structural strength, is favorable to improving life.

Further, the squeegee base has a first side and a second side disposed along the second direction and opposite. The first wear-resistant block is arranged on the first side of the end part, and the second wear-resistant block is arranged on the second side of the end part, so that the end part of the scraper base body can be covered and protected by the two wear-resistant blocks in the wear-resistant assembly, and the wear resistance and the shock resistance of the scraper structure are further improved. In addition, because wear-resisting subassembly only protects the end, wear-resisting subassembly does not cover connecting portion, is favorable to controlling the manufacturing cost of scraper blade structure.

In the technical scheme, the first wear-resistant block is a nano-diamond metal-infiltrated wear-resistant block; and/or the second wear-resistant block is a nano-diamond metal infiltrated wear-resistant block.

In the technical scheme, the first wear-resistant block is set to be the nano-diamond metal wear-resistant block, the nano-diamond solid thermal diffusion technology is adopted for the first wear-resistant block, and the nano-diamond particle infiltration enhancement treatment is carried out on the base steel plate of the first wear-resistant block. The thickness range of the base steel plate is 8mm to 20mm, the unilateral penetration depth is 5mm to 10mm, the hardness of the treated first wear-resistant block is 60HRC to 70HRC, and the first wear-resistant block has an ultralow friction coefficient.

Further, the second wear-resistant block is a nano-diamond metal impregnated wear-resistant block. The second wear-resisting block adopts a nano-diamond infiltration solid state thermal diffusion technology, namely, a substrate steel plate of the second wear-resisting block is subjected to nano-diamond infiltration particle enhancement treatment. The thickness of the base steel plate ranges from 8mm to 20mm, the unilateral penetration depth ranges from 5mm to 10mm, the hardness of the second wear-resistant block after treatment ranges from 60HRC to 70HRC, and the second wear-resistant block has an ultralow friction coefficient.

It is worth mentioning that, only one of the first wear-resistant block and the second wear-resistant block may be the nano-diamond metal impregnated wear-resistant block. In other words, the first wear-resistant block is a nanodiamond-infiltrated metal wear-resistant block; or the second wear-resistant block is a nano-diamond metal infiltrated wear-resistant block. The scraper base body can be made of alloy forging steel such as 40Mn2, 42CrMo and the like, and the heat treatment hardness is 280HBW to 325 HBW.

In the above technical solution, the first side of the end portion is provided with a first connecting surface, the second side of the end portion is provided with a second connecting surface, the first wear-resistant block is provided with a third connecting surface, the second wear-resistant block is provided with a fourth connecting surface, the first connecting surface abuts against the third connecting surface, and the second connecting surface abuts against the fourth connecting surface.

In this technical scheme, through set up first connecting face in the first side of tip, set up the third on the first wear-resisting piece and be connected the face and offset with the third, be favorable to increasing the area of contact of tip and first wear-resisting piece, increase frictional force, when first wear-resisting piece replaces the ledge of tip and middle part groove to take place the friction, can ensure the relative position of first wear-resisting piece and tip to improve scraper blade structure's shock resistance.

Further, the second side of tip is equipped with the second and connects the face, and is equipped with the fourth on the wear-resisting piece of second and connects the face, and the second is connected the face and is connect the face with the fourth and offset, is favorable to increasing tip and the wear-resisting piece's of second area of contact, increases frictional force, when the wear-resisting piece of second replaces the ledge of tip and middle part groove to take place the friction, can ensure the relative position of the wear-resisting piece of second and tip to improve scraper blade structure's shock resistance.

In above-mentioned technical scheme, the tip is equipped with first mounting hole and second mounting hole, and first wear-resisting piece is equipped with the third mounting hole, and the wear-resisting piece of second is equipped with the fourth mounting hole, and the scraper blade structure still includes: the first connecting piece penetrates through the first mounting hole and the third mounting hole to realize the connection of the end part and the first wear-resisting block; and the second connecting piece penetrates through the second mounting hole and the fourth mounting hole to realize the connection of the end part and the second wear-resistant block.

In this technical scheme, the scraper blade structure still includes first connecting piece. Specifically, the end of the scraper base body is provided with a first mounting hole, the first wear-resistant block is provided with a third mounting hole, the first connecting piece penetrates through the first mounting hole and the third mounting hole to realize the connection of the end of the scraper base body and the first wear-resistant block, and the first wear-resistant block and the end of the scraper base body are relatively fixed.

Further, the scraper structure also comprises a second connecting piece. Specifically, the end of the scraper base body is provided with a second mounting hole, the second wear-resistant block is provided with a fourth mounting hole, the second connecting piece penetrates through the second mounting hole and the fourth wear-resistant block to be connected with the end of the scraper base body and the second wear-resistant block, and the second wear-resistant block and the end of the scraper base body are relatively fixed.

It should be noted that the first and second connecting members may be connecting pins, bolt members or other structures for connection.

In the technical scheme, the first wear-resistant block is welded with the end part; and/or the second wear-resistant block is welded with the end portion.

In this technical scheme, through welding first wear-resisting piece and the tip of scraper blade base member, be favorable to improving the joint strength between the tip of first wear-resisting piece and scraper blade base member.

Furthermore, the second wear-resistant block is welded with the end part of the scraper base body, so that the connection strength between the second wear-resistant block and the end part of the scraper base body is improved.

It should be noted that only one of the first wear-resistant block and the second wear-resistant block may be welded to the end of the scraper base. In addition, two connection modes can exist between the wear-resistant block and the end part of the scraper blade base body at the same time, and specifically, the wear-resistant block and the end part are connected through a connecting piece and are relatively fixed in a welding mode.

In above-mentioned technical scheme, connecting portion are equipped with at least one first recess, and the scraper blade structure still includes: the limiting piece is provided with at least one second groove, the second groove and the first groove form a limiting groove, and the limiting groove is used for limiting the chain.

In this technical scheme, the scraper blade structure still includes the locating part. Specifically, the connecting portion of scraper blade base member is equipped with first recess, is equipped with the second recess on the locating part, and first recess and second recess constitute the spacing groove, and the spacing groove can carry on spacingly to the chain in the scraper blade chain.

It is worth mentioning that the number of the first grooves is at least one, and the number of the second grooves is at least one. The limiting part is an E-shaped bolt, the E-shaped bolt is provided with two second grooves, of course, the limiting part can also be other limiting structures, and the number of the second grooves is one or more. The number of the first grooves is consistent with that of the second grooves, namely the number of the first grooves can be one, two or more, and the first grooves are flexibly arranged according to actual requirements.

The present invention provides in a second aspect a scraper chain comprising: a chain; the scraper structure in any of the above embodiments is connected to a chain.

According to an embodiment of the scraper chain according to the utility model, the scraper chain comprises a chain and a scraper structure. Specifically, the chain passes through the spacing groove of scraper structure. In the process of chain movement, the scraper structure can be driven to move together. Scrape the chain and can carry blocky material, for only transporting the mode of material through the conveyer belt, transmission efficiency is high, greatly reduced the possibility that the material blocked.

The scraper chain includes any scraper structure in the first aspect, so that the scraper chain has the beneficial effects of any of the embodiments described above, and details are not repeated herein.

A third aspect of the present invention provides a scraper conveyor comprising: a power mechanism; in the scraper chain in the above embodiment, the chain of the scraper chain is connected with the power structure.

According to an embodiment of the scraper conveyor of the utility model, the scraper conveyor comprises a power mechanism and a scraper chain. Specifically, the chain of scraping the scraper chain is connected with power unit, and power structure can drive chain endless motion, and then the chain can drive scraper structure and move together to reach the purpose of carrying the material.

The scraper conveyor is the main equipment of the underground fully mechanized coal mining face, is used as a coal and material transportation carrier and a coal mining machine running track, and is vital to the normal running of underground coal mining operation. The scraper chain is used as one of the main components and key parts of the scraper conveyor, and directly influences the efficiency and reliability of the scraper conveyor. The working principle of the scraper conveyor is as follows: the open groove body is used as a bearing piece of coal, gangue or materials and the like, and a scraper chain consisting of a scraper and a chain is used as a traction component. A power mechanism of the scraper conveyor drives the chain wheel to rotate, so that the scraper chain runs circularly and drives the material to move along the groove body until the head part is unloaded. The scraper chain performs closed circulation operation around the chain wheel to finish the conveying of the materials.

The scraper conveyor includes any scraper chain in the second aspect, so that the beneficial effects of any of the above embodiments are achieved, and are not described herein again.

A fourth aspect of the present invention provides an engineering machine, including: a frame body; in the scraper conveyor in the above embodiments, the power mechanism of the scraper conveyor is disposed on the frame body.

According to an embodiment of the utility model, a working machine comprises a frame and a scraper conveyor. Specifically, the power mechanism of the scraper conveyor is arranged on a frame body, and the frame body plays a role of a mounting carrier.

It is worth explaining that the engineering machinery is not only suitable for underground fully mechanized coal mining working faces, but also can be applied to haulage roadways or other working conditions.

Additional aspects and advantages of embodiments of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 illustrates a first schematic view of a squeegee base according to one embodiment of the utility model;

FIG. 2 illustrates a second schematic view of a squeegee base according to one embodiment of the utility model;

figure 3 shows a schematic view of a first wear block according to one embodiment of the utility model;

figure 4 shows a schematic view of a second wear block according to an embodiment of the utility model;

FIG. 5 shows a first schematic view of a squeegee configuration according to one embodiment of the utility model;

FIG. 6 illustrates a second schematic view of a squeegee configuration according to one embodiment of the utility model;

FIG. 7 shows a schematic view of a scraper chain according to one embodiment of the utility model;

FIG. 8 shows a schematic view of a spacing groove according to an embodiment of the utility model;

FIG. 9 shows a schematic view of a scraper conveyor according to an embodiment of the utility model;

FIG. 10 shows a schematic view of a work machine according to an embodiment of the utility model;

FIG. 11 illustrates a third schematic view of a squeegee configuration according to one embodiment of the utility model.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 11 is:

100: a scraper structure; 110: a squeegee base; 111: a connecting portion; 1111: a first groove; 112: an end portion; 1121: a first connection face; 1122: a second connection face; 1123: a first mounting hole; 1124: a second mounting hole; 113: a first side; 114: a second side; 120: a wear assembly; 121: a first wear block; 1211: a third connection surface; 1212: a third mounting hole; 122: a second wear block; 1221: a fourth connection face; 1222: a fourth mounting hole; 131: a first connecting member; 132: a second connecting member; 140: a limiting member; 141: a second groove; 150: a limiting groove; 160: a ball bearing; 200: a scraper chain; 210: a chain; 300: a scraper conveyor; 310: a power mechanism; 400: an engineering machine; 410: a shelf body.

Detailed Description

In order that the above objects, features and advantages of the embodiments of the present invention can be more clearly understood, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

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

A scraper structure 100, a scraper chain 200, a scraper conveyor 300 and a working machine 400 provided according to some embodiments of the present invention are described below with reference to fig. 1 to 11.

Example one

As shown in fig. 5 and 6, one embodiment of the present invention provides a flight structure 100 that includes a flight base 110 and a wear assembly 120. Wherein the wear assembly 120 is disposed at the end 112 of the blade base 110 in the first direction. In other words, the end 112 is a portion of the squeegee base 110, and the end 112 is located at one end of the squeegee base 110 in the first direction. The number of the end portions 112 is two, that is, one end of the squeegee base 110 is one of the end portions 112, and the other end of the squeegee base 110 is the other end portion 112. The number of the wear-resistant components 120 is at least one, that is, the number of the wear-resistant components 120 may be one, two or more, and the wear-resistant components 120 are flexibly arranged according to actual needs in consideration of the size of occupied space, wear resistance, cost and other factors. When one wear assembly 120 is provided, the wear assembly 120 is provided on one of the ends 112; when the number of wear assemblies 120 is two, one wear assembly 120 is provided for each end 112; when there are a plurality of wear assemblies 120, each end 112 is provided with at least one wear assembly 120.

Further, the wear assembly 120 includes a first wear block 121 and a second wear block 122. Specifically, the first wear blocks 121 are connected to the end 112 of the squeegee base 110, and the second wear blocks 122 are connected to the end 112 of the squeegee base 110. The second wear-resistant blocks 122 are arranged with the first wear-resistant blocks 121 in a second direction, which is perpendicular to the first direction. The second wear-resistant block 122 is fixed opposite to the first wear-resistant block 121.

Note that the first direction of the blade base 110 is a longitudinal direction, and the second direction of the blade base 110 is a height direction. Of course, the first direction and the second direction of the squeegee base 110 can be any other directions.

The scraper conveyor 300 is a main device of an underground fully mechanized coal mining face, is used as a coal and material transportation carrier and a coal mining machine operation track, and is important for normal operation of underground coal mining operation. The scraper chain 200, as one of the main components and key parts of the scraper conveyor 300, directly affects its efficiency and reliability. The operation principle of the scraper conveyor 300 is as follows: the open trough body is used as a bearing part of coal, gangue or materials and the like, and a scraper chain 200 consisting of a scraper and a chain 210 is used as a traction component. The power mechanism 310 of the scraper conveyor 300 drives the chain wheel to rotate, so that the scraper chain 200 runs circularly to drive the material to move along the groove body until the head part is unloaded. The scraper chain 200 performs closed circulation operation around the sprocket to complete the material conveying. In the process of fully mechanized coal mining, coal gangue frequently slides into the ledge of the middle trough and between the scrapers, the scrapers are seriously worn, and especially in the transition sections of the machine head and the machine tail, the abrasion of the scrapers is accelerated due to the influence of the change of the running angle of the scrapers and the increase of the tension of the chain 210; in addition, coal and air on the coal face contain corrosive gases such as sulfur and phosphorus, which also leads to increased wear of the scrapers. In the related art, the blade is forged from an alloy steel material, and in order to resist severe impact and abrasion to which the blade is subjected during operation, high toughness of the core portion of the blade and high wear resistance of both end portions 112 are required. Due to the limitation of the material and the heat treatment process, the high toughness and the high wear resistance of the scraper are often not compatible, and the long-time operation can cause fatigue fracture or wear failure of the scraper.

In the technical scheme defined by the utility model, the first wear-resistant block 121 and the second wear-resistant block 122 have the characteristics of high wear resistance, low friction coefficient, impact resistance and the like, and have good welding performance, and the two wear-resistant blocks can cover and protect the end part 112 most susceptible to wear in the scraper base body 110, so that the scraper structure 100 is a combined wear-resistant scraper, which is beneficial to improving the impact resistance and wear resistance of the two ends of the scraper structure 100 and prolonging the service life of the scraper chain 200 and the scraper conveyor 300.

In another embodiment, as shown in FIG. 11, balls 160 are provided at both ends of the squeegee base 110. Through setting up ball 160, rolling friction replaces sliding friction, is favorable to reducing frictional force, and then can alleviate the degree of wear.

In another embodiment, the balls 160 are disposed on the first wear-resistant block 121 or the second wear-resistant block 122 of the wear-resistant assembly 120, which is beneficial to reducing friction force, so as to reduce the degree of wear.

Example two

As shown in fig. 1 and 2, the squeegee base 110 includes a connecting portion 111 and two end portions 112. Specifically, one of the end portions 112 is disposed at one end of the connecting portion 111 along the first direction, and the other end portion 112 is disposed at the other end of the connecting portion 111 along the first direction, that is, the two end portions 112 are respectively disposed at two ends of the connecting portion 111. The split type structure of scraper blade base member 110, the material of connecting portion 111 can be different with tip 112's material, and connecting portion 111 has high toughness, and tip 112 has high wearability to scraper blade structure 100 still has higher wearability when possessing sufficient structural strength, is favorable to improving life.

Further, the squeegee base 110 has a first side 113 and a second side 114 disposed along a second direction and opposite. The first wear-resistant block 121 is disposed on the first side 113 of the end portion 112, and the second wear-resistant block 122 is disposed on the second side 114 of the end portion 112, it can be understood that two wear-resistant blocks in the wear-resistant assembly 120 can cover and protect the end portion 112 of the scraper base 110, so as to further improve the wear resistance and the impact resistance of the scraper structure 100. In addition, since the wear assembly 120 only protects the end portion 112, the wear assembly 120 does not cover the connecting portion 111, which is advantageous for controlling the production cost of the blade structure 100.

Further, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the first side 113 of the end portion 112 is provided with a first connection surface 1121, the first wear-resistant block 121 is provided with a third connection surface 1211, and the first connection surface 1121 abuts against the third connection surface 1211, which is beneficial to increasing the contact area between the end portion 112 and the first wear-resistant block 121 and increasing the friction force, and when the first wear-resistant block 121 replaces the end portion 112 to rub against the ledge of the middle groove, the relative position between the first wear-resistant block 121 and the end portion 112 can be ensured, so as to improve the impact resistance of the scraper structure 100.

Further, the second side 114 of the end portion 112 is provided with a second connection surface 1122, the second wear-resistant block 122 is provided with a fourth connection surface 1221, the second connection surface 1122 abuts against the fourth connection surface 1221, so that the contact area between the end portion 112 and the second wear-resistant block 122 is increased, the friction force is increased, and when the second wear-resistant block 122 replaces the ledge of the end portion 112 and the middle groove to rub, the relative position between the second wear-resistant block 122 and the end portion 112 can be ensured, so that the impact resistance of the scraper structure 100 is improved.

Further, as shown in fig. 1, 3 and 5, the squeegee structure 100 further includes a first connecting member 131. Specifically, the end 112 of the scraper base 110 is provided with a first mounting hole 1123, the first wear-resistant block 121 is provided with a third mounting hole 1212, and the first connecting member 131 is inserted into the first mounting hole 1123 and the third mounting hole 1212, so as to connect the end 112 of the scraper base 110 and the first wear-resistant block 121.

Further, as shown in fig. 2, 4 and 6, the flight structure 100 further includes a second link 132. Specifically, the end 112 of the scraper base 110 is provided with a second mounting hole 1124, the second wear-resistant block 122 is provided with a fourth mounting hole 1222, and the second connecting member 132 is inserted into the second mounting hole 1124 and the fourth mounting hole to connect the end 112 of the scraper base 110 and the second wear-resistant block 122.

It is noted that the first connecting member 131 and the second connecting member 132 may be connecting pins, bolts or other structures for connection.

Further, the first wear-resistant block 121 is welded to the end 112, which is beneficial to improving the connection strength between the first wear-resistant block 121 and the end 112 of the scraper base 110. The second wear-resistant blocks 122 are welded to the end 112 of the scraper base 110, which is beneficial to improving the connection strength between the second wear-resistant blocks 122 and the end 112 of the scraper base 110.

It should be noted that only one of the first wear-resistant block 121 and the second wear-resistant block 122 may be welded to the end 112 of the scraper base 110. In addition, two connection modes can exist between the wear-resistant block and the end part 112 of the scraper blade base body 110, specifically, the wear-resistant block and the end part 112 are connected through a connecting piece and are relatively fixed in a welding mode.

EXAMPLE III

As shown in fig. 3, the first wear-resistant block 121 is a nano-diamond impregnated metal wear-resistant block. The first wear-resistant block 121 adopts a nano-diamond infiltration solid state thermal diffusion technology, that is, the base steel plate of the first wear-resistant block 121 is subjected to nano-diamond infiltration particle enhancement treatment. The thickness of the base steel plate ranges from 8mm to 20mm, the unilateral penetration depth ranges from 5mm to 10mm, the hardness of the treated first wear-resistant block 121 ranges from 60HRC to 70HRC, and the first wear-resistant block 121 has an ultralow friction coefficient.

Further, as shown in fig. 4, the second wear-resistant block 122 is a nano-diamond impregnated metal wear-resistant block. The second wear-resistant block 122 adopts a nano-diamond infiltration solid state thermal diffusion technology, that is, the base steel plate of the second wear-resistant block 122 is subjected to nano-diamond infiltration particle enhancement treatment. The thickness of the base steel plate ranges from 8mm to 20mm, the unilateral penetration depth ranges from 5mm to 10mm, the hardness of the second wear-resistant block 122 after treatment ranges from 60HRC to 70HRC, and the second wear-resistant block 122 has an ultralow friction coefficient.

It should be noted that, only one of the first wear-resistant block 121 and the second wear-resistant block 122 may be a nanodiamond-impregnated metal wear-resistant block. In other words, the first wear-resistant block 121 is a nanodiamond-infiltrated metal wear-resistant block; or the second wear-resistant block 122 is a nano-diamond impregnated metal wear-resistant block. The blade base 110 may be made of alloy forging steel such as 40Mn2, 42CrMo, etc., and has a heat treatment hardness of 280HBW to 325 HBW.

Example four

As shown in fig. 7 and 8, the scraper structure 100 further includes a stopper 140. Specifically, the connecting portion 111 of the scraper base 110 is provided with a first groove 1111, the limiting member 140 is provided with a second groove 141, the first groove 1111 and the second groove 141 form a limiting groove 150, and the limiting groove 150 can limit the chain 210 in the scraper chain 200.

It is noted that the number of the first grooves 1111 is at least one, and the number of the second grooves 141 is at least one. The limiting member 140 is an E-shaped bolt, and the E-shaped bolt is provided with two second grooves 141, of course, the limiting member 140 may also be other limiting structures, and the number of the second grooves 141 is one or more. The number of the first grooves 1111 is the same as the number of the second grooves 141, that is, the number of the first grooves 1111 may be one, two or more, and the arrangement is flexible according to actual requirements.

EXAMPLE five

As shown in fig. 7, an embodiment of the present invention provides a scraper chain 200, which includes a chain 210 and the scraper structure 100 of any of the above embodiments. Specifically, the chain 210 passes through the limiting groove 150 of the scraper structure 100. The chain 210 moves along with the flight structure 100. Scrape chain 200 and can carry blocky material, for only the mode of transporting the material through the conveyer belt, transmission efficiency is high, greatly reduced the possibility that the material blocked.

EXAMPLE six

As shown in fig. 9, an embodiment of the present invention provides a scraper conveyor 300 including a power mechanism 310 and the scraper chain 200 in the above-described embodiment. Specifically, the chain 210 of the scraper chain 200 is connected to the power mechanism 310, and the power mechanism can drive the chain 210 to move circularly, so that the chain 210 can drive the scraper structure 100 to move together, thereby achieving the purpose of conveying materials.

The scraper conveyor 300 is a main device of an underground fully mechanized coal mining face, is used as a coal and material transportation carrier and a coal mining machine operation track, and is important for normal operation of underground coal mining operation. The scraper chain 200, as one of the main components and key parts of the scraper conveyor 300, directly affects its efficiency and reliability. The operation principle of the scraper conveyor 300 is as follows: the open trough body is used as a bearing part of coal, gangue or materials and the like, and a scraper chain 200 consisting of a scraper and a chain 210 is used as a traction component. The power mechanism 310 of the scraper conveyor 300 drives the chain wheel to rotate, so that the scraper chain 200 runs circularly to drive the material to move along the groove body until the head part is unloaded. The scraper chain 200 performs closed circulation operation around the sprocket to complete the material conveying.

EXAMPLE seven

As shown in fig. 10, a working machine 400 according to an embodiment of the present invention includes a frame 410 and the scraper conveyor 300 in the above embodiment. Specifically, the power mechanism 310 of the scraper conveyor 300 is provided to the frame 410, and the frame 410 functions as a mounting carrier.

It should be noted that the construction machine 400 of the present invention is not only suitable for underground fully mechanized coal mining faces, but also applicable to haulage roadways or other working conditions.

According to the embodiment of the scraper structure, the scraper chain, the scraper conveyor 300 and the engineering machinery, the first wear-resistant block and the second wear-resistant block have the characteristics of high wear resistance, low friction coefficient, impact resistance and the like, and have good welding performance, the two wear-resistant blocks can cover and protect the end parts, which are most easily worn, in the scraper base body, so that the scraper structure is a combined wear-resistant scraper, the impact resistance and the wear resistance at the two ends of the scraper structure are improved, and the service life of the scraper chain and the scraper conveyor 300 is prolonged.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. 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 the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," 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 utility model. In this specification, the schematic representations of the terms used above do not necessarily 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.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 (10)

1. A squeegee construction, comprising:

a blade base (110);

at least one wear assembly (120) disposed at an end (112) of the flight base (110) in a first direction, the wear assembly (120) comprising:

a first wear block (121) connected to the end portion (112);

a second wear block (122) connected to the end (112), the second wear block (122) being arranged in a second direction with the first wear block (121), the second direction being perpendicular to the first direction, the second wear block (122) being fixed relative to the first wear block (121).

2. The flight structure of claim 1, wherein the flight base (110) comprises:

a connecting portion (111);

two end portions (112), one of the end portions (112) being provided at one end of the connecting portion (111) in the first direction, the other end portion (112) being provided at the other end of the connecting portion (111) in the first direction,

wherein the scraper base (110) has a first side (113) and a second side (114) which are oppositely arranged along the second direction, the first wear-resistant block (121) is arranged on the first side (113) of the end part (112), and the second wear-resistant block (122) is arranged on the second side (114) of the end part (112).

3. The scraper structure of claim 1, characterized in that said first wear-resistant blocks (121) are nanodiamond metal impregnated wear-resistant blocks; and/or the second wear-resistant block (122) is a nano-diamond impregnated metal wear-resistant block.

4. The scraper structure of claim 2 wherein said first side (113) of said end portion (112) is provided with a first connecting surface (1121), said second side (114) of said end portion (112) is provided with a second connecting surface (1122), said first wear block (121) is provided with a third connecting surface (1211), said second wear block (122) is provided with a fourth connecting surface (1221), said first connecting surface (1121) abuts said third connecting surface (1211), and said second connecting surface (1122) abuts said fourth connecting surface (1221).

5. The scraper structure of claim 1 wherein said end portion (112) is provided with a first mounting hole (1123) and a second mounting hole (1124), said first wear block (121) is provided with a third mounting hole (1212), said second wear block (122) is provided with a fourth mounting hole (1222), said scraper structure (100) further comprising:

a first connecting piece (131) arranged through the first mounting hole (1123) and the third mounting hole (1212) to connect the end part (112) with the first wear-resistant block (121);

and the second connecting piece (132) is arranged in the second mounting hole (1124) and the fourth mounting hole (1222) in a penetrating mode so as to realize the connection of the end part (112) and the second wear-resisting block (122).

6. The scraper structure of claim 1, characterized in that said first wear-resistant blocks (121) are welded to said end portions (112); and/or the second wear block (122) is welded to the end (112).

7. Scraper structure according to claim 2, characterized in that said connecting portion (111) is provided with at least one first groove (1111), said scraper structure (100) further comprising:

the limiting piece (140) is provided with at least one second groove (141), the second groove (141) and the first groove (1111) form a limiting groove (150), and the limiting groove (150) is used for limiting the chain (210).

8. A scraper chain, comprising:

a chain (210);

the flight structure (100) of any one of claims 1 to 7, connected to the chain (210).

9. A scraper conveyor, comprising:

a power mechanism (310);

the scraper chain (200) of claim 8, the chain (210) of the scraper chain (200) being connected to the power structure.

10. A work machine, comprising:

a frame body (410);

the scraper conveyor (300) of claim 9, wherein the power mechanism (310) of the scraper conveyor (300) is disposed on the frame (410).

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