CN219241922U - Wear-resistant center knife of push bench - Google Patents

Abstract

The utility model belongs to the field of pipe pushing machine cutter application equipment, and particularly relates to a pipe pushing machine wear-resistant center cutter, which comprises a center cutter body, wherein the center cutter body comprises four wear-resistant cutters which are arranged in a cross shape, the wear-resistant cutters are of a right trapezoid shape, the wear-resistant cutters comprise cutter bodies, a plurality of hard wear-resistant alloys are arranged on the cutter bodies, wear-resistant welding for improving the wear resistance of the cutters is arranged on the peripheries of two sides of the cutter bodies, a wear-resistant assembly for improving the use strength of the center cutter body is arranged between two adjacent wear-resistant cutters, the wear-resistant assembly comprises an inclined wear-resistant plate which is arranged in an inclined manner according to the long waist of the wear-resistant cutters, the lower end of the inclined wear-resistant plate is provided with a vertical wear-resistant plate, and a plurality of wear-resistant cylindrical alloys for reducing the damage of the center cutter body are uniformly arranged on the wear-resistant assembly. The utility model can effectively improve the use strength and the shearing strength of the cutter, improve the wear resistance, ensure the cutting advance of the cutter head under any angle rotation and meet the use requirement.

Description

Wear-resistant center knife of push bench

Technical Field

The utility model belongs to the field of pipe pushing machine cutter application equipment, and particularly relates to a wear-resistant center cutter of a pipe pushing machine.

Background

At present, in the mining engineering machinery of the pipe pushing jack, a central cutter is used as a central rock breaking cutter of a cutter disc, and the mining engineering machinery belongs to vulnerable parts under the condition of more sandstone under geological working conditions.

In the prior art, the common center knife is designed in a straight line (as shown in fig. 1 and 2), and the cutter in the form is worn seriously due to gravel in the corresponding cutting process, so that the cutter can generate larger deformation in tunneling, the serious deformation can be even ground flat, the wear-resisting effect of the center knife is greatly reduced, in addition, the use strength and the shearing strength of the center knife are also relatively poor, the cutting process can not be completed due to the fact that the wear-resisting capability is lost sometimes, the cutter disc or other cutters are rapidly damaged to a certain extent, the service life is limited, the working process and the use functionality are influenced, the production cost is increased, and the production and use requirements can not be met.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the wear-resistant center knife of the push bench, which has reasonable design, simple structure and convenient processing, can effectively improve the use strength and the shearing strength of a cutter, improve the wear resistance, ensure the cutting advance of a cutter head under any angle rotation, improve the working process and prolong the service life of the cutter head, and effectively meet the use requirement.

In order to achieve the above purpose, the technical scheme adopted by the utility model is that the wear-resistant center knife of the pipe pushing jack comprises a center knife body, the center knife body comprises four wear-resistant knives which are arranged in a cross shape, the wear-resistant knives are in a right trapezoid shape, the wear-resistant knives comprise a knife body, a plurality of hard wear-resistant alloys are arranged on the knife body, wear-resistant welding for improving the wear resistance of the knife is arranged on the periphery of two sides of the knife body, a wear-resistant assembly for improving the use strength of the center knife body is arranged between two adjacent wear-resistant knives, the wear-resistant assembly comprises an inclined wear-resistant plate which is arranged in an inclined manner according to the long waist of the wear-resistant knives, the lower end of the inclined wear-resistant plate is provided with a vertical wear-resistant plate, and a plurality of wear-resistant cylindrical alloys for reducing the damage of the center knife body are uniformly arranged on the wear-resistant assembly.

Preferably, the joint of the inclined wear-resisting plate and the vertical wear-resisting plate is also provided with a semicircular reinforcing block.

Preferably, the hard wear-resistant alloy is welded on the cutter body in a cross shape.

Preferably, the material used for the center cutter body is Q345B low-carbon alloy steel, and the wear-resistant welding is formed by overlaying novel alloy particle materials.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the wear-resistant center knife of the push bench, through the four fork type wear-resistant knife, the wear-resistant center knife can rotate at any angle to cut and advance, so that the cutting performance of the knife is effectively improved, and the uniform feeding speed of the push bench is accelerated; the wear-resistant component and the wear-resistant cylindrical alloy added on the wear-resistant knife provide double insurance for the knife, so that the use strength and wear resistance of the knife are greatly improved, the use strength and shearing strength of the knife are further improved to a certain extent, the change of complex geology can be borne, and the working process is improved; the device has reasonable design, simple structure and convenient processing, can effectively improve the use strength and the shearing strength of the cutter, improves the wear resistance, ensures the cutting advance under the rotation of any angle of the cutter disc, improves the working process and prolongs the service life of the cutter disc, and effectively meets the use requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a front elevational view of a prior art push bench wear center knife prior to retrofitting;

FIG. 2 is a side view of the structure of an existing push bench before modification of the wear center knife;

FIG. 3 is a schematic diagram of the structure of the present utility model;

FIG. 4 is a top plan view of the structure of the present utility model;

in the above figures, 1, a center cutter body; 2. wear-resistant knife; 21. a cutter body; 3. a hard wear resistant alloy; 4. wear-resistant welding; 5. a wear assembly; 51. tilting the wear plate; 52. a vertical wear plate; 6. wear-resistant cylindrical alloy; 7. reinforcing blocks.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

As shown in fig. 3 and fig. 4, an embodiment of a wear-resistant center knife of a pipe pushing jack includes a center knife body 1, wherein the center knife body 1 includes four wear-resistant knives 2 arranged in a cross shape, that is, the four-fork design is adopted, and compared with the center knife in the prior art, the scheme adopted in the embodiment can effectively improve the cutting performance of the knife and the wear-resistant effect of the center knife body 1; in order to effectively improve the rationality of the design of the device and equipment, further, the wear-resistant cutter 2 is in a right trapezoid shape, the wear-resistant cutter 2 comprises cutter bodies 21, hard wear-resistant alloy 3 is arranged on the cutter bodies 21, wear-resistant welds 4 for improving the wear resistance of the cutter are arranged on the peripheries of the two sides of the cutter bodies 21, and the wear-resistant alloy 3 and the wear-resistant welds 4 are matched for use, so that the wear resistance of the cutter is effectively improved, and the possibility of deformation is reduced; in order to strengthen a workpiece and ensure the use functionality of device equipment, meanwhile, the possibility of damage deformation of a center cutter is reduced, a wear-resistant component 5 for improving the use strength of a center cutter body 1 is arranged between two adjacent wear-resistant cutters 2, the wear-resistant component 5 comprises an inclined wear-resistant plate 51 which is arranged in a manner of conforming to the long waist of the wear-resistant cutter 2 in an inclined manner, the lower end of the inclined wear-resistant plate 51 is provided with a vertical wear-resistant plate 52, wherein the inclined wear-resistant plate 51 and the vertical wear-resistant plate 52 are both wear-resistant steel plates and are welded on the periphery of the cutter body 21, the cutter body 21 is strengthened to a certain extent, the tunneling speed is improved, the soil body can be cut forcefully when a cutter disc is rotated, and the working process is improved; the wear-resistant component 5 is uniformly provided with a plurality of wear-resistant cylindrical alloys 6 for reducing damage to the central cutter body 1, so that gravel can be effectively prevented from entering the cutter body 21 from the periphery, the cutter body 21 is protected from being damaged, the service life of the cutter body is relatively prolonged, and the production cost is saved; further, the method comprises the following steps: the structural form of the cutter is suitable for the condition of more complex geology, the phenomenon of cutter head falling is avoided, the cutting speed is also improved, and in addition, the wear-resistant welding 4 welded on the periphery of the cutter body 21 also improves the overall wear resistance of the cutter and adapts to the abrupt change of the complex geology; in the above process: the four fork type wear-resistant knife 2 can be rotated at any angle to cut and advance, so that the cutting performance of the knife is effectively improved, and the uniform speed of the push bench is increased; the wear-resistant component 5 and the wear-resistant cylindrical alloy 6 added to the wear-resistant cutter 2 provide double insurance for the cutter, so that the use strength and wear resistance of the cutter are greatly improved, the use strength and shearing strength of the cutter are further improved to a certain extent, the change of complex geology can be borne, and the working process is improved; the device has reasonable design, simple structure and convenient processing, can effectively improve the use strength and the shearing strength of the cutter, improves the wear resistance, ensures the cutting advance under the rotation of any angle of the cutter disc, improves the working process and prolongs the service life of the cutter disc, and effectively meets the use requirement.

In order to effectively improve the use strength of the wear-resistant knife 2, the joint of the inclined wear-resistant plate 51 and the vertical wear-resistant plate 52 is also provided with a semicircular reinforcing block 7, which improves the connection stability between the inclined wear-resistant plate 51 and the vertical wear-resistant plate 52 on one hand and effectively increases the use strength of equipment parts and reduces the possibility of damage of the equipment parts on the other hand.

In order to further improve the wear resistance of the workpiece, ensure that the device and equipment have good service performance, the hard wear-resistant alloy 3 is welded on the cutter body 21 in a cross shape, and the connecting mode ensures the connection stability among the equipment parts, effectively increases the wear resistance and ensures the use functionality.

In order to improve the rationality of the design of the device, the material used by the center cutter body 1 is Q345B low-carbon alloy steel, the comprehensive performance is good, the low-temperature performance is good, the cold stamping performance, the welding performance and the machinability are good, so that the wear-resistant cutter 2 and the wear-resistant component 5 are welded more firmly, cracks are avoided, and the use functionality is ensured; the wear-resistant welding 4 is formed by overlaying a novel alloy particle material, the welding mode ensures that the connection between the device and the equipment parts is firmer, ensures the stability of the workpiece, meets the use requirement, and of course, the novel alloy particle material selected in the overlaying process is an existing mature technology, can be effectively known to the person skilled in the art, and is not repeated here.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (4)

1. The utility model provides a wear-resisting center sword of push bench, includes the center sword body, its characterized in that, the center sword body includes four wear-resisting boards that are the cross and arrange and set up, wear-resisting boards is right trapezoid form design, wear-resisting boards includes the cutter body, a plurality of be provided with the wear-resisting alloy of stereoplasm on the cutter body, the periphery of cutter body both sides is provided with the wear-resisting welding that is used for improving cutter wearability, adjacent two be provided with the wear-resisting subassembly that is used for improving center sword body service strength between the wear-resisting sword, wear-resisting subassembly is including the slope antifriction board that the long waist slope of compliance wear-resisting board was set up, the lower extreme of slope antifriction board is provided with vertical antifriction board, evenly be provided with a plurality of wear-resisting cylinder alloys that are used for reducing the center sword body damage on the wear-resisting subassembly.

2. The wear-resistant center knife of the push bench according to claim 1, wherein a semicircular reinforcing block is further arranged at the joint of the inclined wear plate and the vertical wear plate.

3. The wear-resistant center knife of pipe pushing jack according to claim 2, wherein the hard wear-resistant alloy is welded on the knife body in a cross shape.

4. A wear-resistant center knife of a pipe pushing jack according to claim 3, wherein the center knife body is made of Q345B low-carbon alloy steel, and the wear-resistant welding is formed by overlaying a novel alloy particle material.

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