Metal powder particle shaping and crushing device

Abstract

The utility model discloses a metal powder particle shaping and smashing device which comprises a rack, a smashing motor is installed on the rack, a first belt wheel is installed at the output end of the smashing motor, a flail knife shaft is transversely arranged in the rack, a plurality of flail knives are evenly distributed on the periphery of the flail knife shaft, and a second belt wheel is installed at the end of the flail knife shaft. The first belt wheel and the second belt wheel are installed through a belt, an arc-shaped cover shell is arranged above the flail knife shaft, a smashing tile plate is arranged on the inner wall of the arc-shaped cover shell, the outer side arc face of the smashing tile plate is tightly attached to the inner wall of the arc-shaped cover shell, and corrugations with trapezoidal sections are evenly distributed on the inner side arc face of the smashing tile plate in the radial direction of an arc. And the crushing roofing slate is tightly connected with the arc-shaped housing. By using the device, fine copper powder particles with uneven surfaces can be produced, the standard of powder metallurgy self-lubricating bearing materials is met, and the lubricating performance of the low-noise precision oil bearing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder crushing and granulating equipment, in particular to a metal powder particle shaping and crushing device. Background Art

[0002] In the prior art, when using powder metallurgy to form an oil-containing bearing, the surface of the copper powder used for sintering is too uniform, resulting in the effective pores of the oil-containing bearing being too tight, which seriously affects the penetration effect of the lubricating oil on the oil-containing bearing, resulting in insufficient amount of lubricating oil in the pores of the oil-containing bearing, and failing to achieve a good lubricating effect on the bearing clearance.

[0003] Therefore, it is necessary to provide a metal powder particle shaping and crushing device to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a metal powder particle shaping and crushing device to address the deficiencies in the prior art, which can produce finely crushed copper powder particles with uneven surfaces, meet the molding requirements of porous oil-containing bearings, and improve the lubrication effect of precision sintered oil-containing sleeves.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A metal powder particle shaping and crushing device comprises a frame, a crushing motor is installed on the frame, a first pulley is installed on the output end of the crushing motor, a flinging knife shaft is horizontally arranged inside the frame, a plurality of flinging knives are evenly arranged along the outer circumference of the flinging knife shaft, a second pulley is installed on the end of the flinging knife shaft, the first pulley is installed with the second pulley through a belt, an arc-shaped cover shell is arranged above the flinging knife shaft, a crushing tile plate is arranged on the inner wall of the arc-shaped cover shell, the outer arc surface of the crushing tile plate is tightly fitted with the inner wall of the arc-shaped cover shell, and the inner arc surface of the crushing tile plate is Corrugations with trapezoidal cross-sections are evenly distributed along the radial direction of the arc. The surface of the crushing tile plate is provided with bolt holes arranged in an array, and the bolt holes include screw holes with circular cross-sections and bolt head grooves with hexagonal cross-sections. The bolt head grooves are provided on the inner side of the crushing tile plate, and the surface of the arc-shaped cover shell is provided with through holes corresponding to the screw holes. The bolt heads abut against the bolt head grooves, so that the screw passes through the screw holes and the through holes, and the crushing tile plate and the arc-shaped cover shell are tightly connected. One end of the screw extending out of the arc-shaped cover shell is fastened by a nut, and the nut is fixed to the outer surface of the arc-shaped cover shell.

[0007] Preferably, a feed port is provided at the upper end of the frame, and a discharge port is provided at the bottom end of the frame.

[0008] Preferably, the crushing shoe plate is a wear-resistant steel crushing shoe plate.

[0009] Preferably, a handle is provided on the top surface of the arc-shaped cover shell.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The copper powder particles to be crushed are thrown to the inner side of the crushing tile by the fling knife. Under the action of high-speed centrifugal force, the copper powder particles are shaped and crushed by the trapezoidal cross-section corrugations on the crushing tile. The copper powder particles are made finer and the surface of the copper powder particles is more uneven by colliding with the corrugations of the trapezoidal cross-section. The oil-containing bearings sintered with copper powder particles with uneven surfaces have larger effective connected pores and better penetration of lubricating oil. When used, they can have a better lubrication effect on the bearing gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 Schematic diagram of the internal structure at A in the middle;

[0014] Figure 3 It is a schematic diagram of the structure of the crushed tile plate;

[0015] Figure 4 This is the SEM image of the copper powder particles after shaping and crushing;

[0016] Figure 5 yes Figure 4 An enlarged schematic diagram of

[0017] Among them, 1-first pulley, 2-swing blade shaft, 3-swing blade, 4-second pulley, 5-arc cover, 6-crushing tile plate, 7-handle, 8-feeding port, 9-discharging port DETAILED DESCRIPTION

[0018] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0019] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixed connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0020] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0021] like Figures 1 to 5 As shown, a metal powder particle shaping and crushing device comprises a frame, a crushing motor is installed on the frame, a first pulley 1 is installed at the output end of the crushing motor, a flinging knife shaft 2 is arranged horizontally inside the frame, six flinging knives 3 are evenly arranged along the outer circumference of the flinging knife shaft, a second pulley 4 is installed at the end of the flinging knife shaft, the first pulley is installed with the second pulley through a belt, an arc-shaped cover shell 5 is installed above the flinging knife shaft, a crushing tile plate 6 made of wear-resistant steel is arranged on the inner wall of the arc-shaped cover shell, the outer arc surface of the crushing tile plate is tightly fitted with the inner wall of the arc-shaped cover shell, and the inner arc surface of the crushing tile plate is evenly distributed with a ladder-shaped cross-section along the radial direction of the arc. shaped corrugated tiles, an array of bolt holes are provided on the surface of the crushing tile plate, the bolt holes include screw holes with circular cross-sections and bolt head grooves with hexagonal cross-sections, the bolt head grooves are provided on the inner side of the crushing tile plate, a through hole corresponding to the screw hole is provided on the surface of the arc-shaped cover shell, the bolt head abuts against the bolt head groove, so that the screw passes through the screw hole and the through hole, and the crushing tile plate and the arc-shaped cover shell are tightly connected, one end of the screw extending out of the arc-shaped cover shell is fastened by a nut, and the nut is welded and fixed to the outer surface of the arc-shaped cover shell, a handle 7 is installed on the top surface of the arc-shaped cover shell, a feed port 8 is provided at the upper end of the frame, and a discharge port 9 is provided at the bottom end of the frame.

[0022] The principle and use method of a metal powder particle shaping and crushing device: the copper powder particles to be crushed are sent from the feed port to the swing knife, the swing knife shaft drives the second pulley to rotate rapidly through the crushing motor, the swing knife and the swing knife shaft move synchronously, and the copper powder particles falling on the swing knife are thrown to the crushing tile at high speed, and the corrugations of the crushing tile shape and crush the copper powder particles. The corrugations with a trapezoidal cross-section can crush the surface of the copper powder particles into an uneven shape, so that the processed copper powder particles can meet the sintering requirements of oil-containing bearings. At the same time, after the nuts and bolts are tightened, the nuts are welded and fixed to the arc cover to avoid the situation where the crushing tile falls due to the vibration of the crushing tile and damages the swing knife. When replacement is needed, the entire arc cover and the crushing tile are lifted together by the handle, and the crushing tile is disassembled and replaced.

[0023] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A metal powder particle shaping and crushing device, characterized in that: The machine comprises a frame, a crushing motor is installed on the frame, a first pulley is installed on the output end of the crushing motor, a knife-flipping shaft is arranged horizontally inside the frame, a plurality of knives are evenly arranged along the outer circumference of the knife-flipping shaft, a second pulley is installed on the end of the knife-flipping shaft, the first pulley is installed with the second pulley through a belt, an arc-shaped cover shell is arranged above the knife-flipping shaft, a crushing tile plate is arranged on the inner wall of the arc-shaped cover shell, the outer arc surface of the crushing tile plate is tightly fitted with the inner wall of the arc-shaped cover shell, and the inner arc surface of the crushing tile plate is evenly arranged along the arc radial direction. There are corrugations with a trapezoidal cross-section, and the surface of the crushing tile plate is provided with bolt holes arranged in an array. The bolt holes include screw holes with a circular cross-section and bolt head grooves with a hexagonal cross-section. The bolt head grooves are provided on the inner side of the crushing tile plate, and the surface of the arc-shaped cover shell is provided with through holes corresponding to the screw holes. The bolt heads are in contact with the bolt head grooves, so that the screw passes through the screw holes and the through holes, and the crushing tile plate and the arc-shaped cover shell are tightly connected. One end of the screw extending out of the arc-shaped cover shell is fastened by a nut, and the nut is fixed to the outer surface of the arc-shaped cover shell.

2. The metal powder particle shaping and crushing device according to claim 1, characterized in that: The upper end of the frame is provided with a feed port, and the bottom end of the frame is provided with a discharge port.

3. The metal powder particle shaping and crushing device according to claim 1, characterized in that: The crushing tile is made of wear-resistant steel.

4. The metal powder particle shaping and crushing device according to claim 1, characterized in that: A handle is provided on the top surface of the arc-shaped cover shell.

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