CN113798343A - Stone remover and manufacturing method thereof - Google Patents

Stone remover and manufacturing method thereof Download PDF

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Publication number
CN113798343A
CN113798343A CN202111095131.9A CN202111095131A CN113798343A CN 113798343 A CN113798343 A CN 113798343A CN 202111095131 A CN202111095131 A CN 202111095131A CN 113798343 A CN113798343 A CN 113798343A
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Prior art keywords
stone
plate
support plate
baffle
blank
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CN202111095131.9A
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CN113798343B (en
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高波
李辰
田星宇
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CRRC Datong Co Ltd
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CRRC Datong Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00Profiling tools for metal extruding
    • B21C25/02Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C35/00Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/02Removing or drawing-off work

Abstract

The present disclosure relates to a stone remover and a manufacturing method thereof. The first bending plate, the second bending plate and the stone discharging baffle are made of aluminum alloy materials, the aluminum alloy materials can meet the requirements of corrosion resistance, vibration resistance, specific strength, high specific rigidity, wear resistance and the like, the weight of the aluminum alloy materials is light, the overall weight of the stone discharging device is greatly reduced, and the impact between wheels and rails is reduced. First board and the second board of buckling and stone discharge baffle and the second board of buckling are all buckled through the fastener and are all dismantled and be connected, and the mode of connecting through the fastener between two connecting plates has reduced the problem that the fracture became invalid easily to appear in the junction of part. The structure that will arrange the stone baffle and connect and adjust sets up to the same bent plate, does benefit to batch production, can reduce manufacturing cost.

Description

Stone remover and manufacturing method thereof
Technical Field
The disclosure relates to the technical field of rail locomotives, in particular to a stone remover and a manufacturing method thereof.
Background
With the continuous development of electric locomotive technology, the requirement of the railway track traffic electric locomotive on the operation safety is increasingly improved, and the position of the stone remover on the running safety of the locomotive is very important. The stone remover is arranged at the front end of a locomotive bogie and is used for removing obstacles on a locomotive track and ensuring the safe running of the locomotive.
The existing stone remover has different parts for installation and adjustment, and the parts need to be processed respectively, so that the manufacturing cost is increased, and different parts are welded together, so that the joint of the parts is easy to break and lose efficacy, and the safety of a locomotive is seriously influenced. And the stone remover is relatively heavy as a whole, increases the impact force between the wheels and the track, and has poor corrosion resistance and fatigue resistance of parts, and low specific rigidity and specific strength.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The invention aims to solve the problems that an existing stone remover is heavy and a joint is easy to break and fail, and provides a stone remover and a manufacturing method thereof.
According to one aspect of the disclosure, a stone ejector is provided, which comprises a first bending plate, a second bending plate and a stone ejecting baffle plate, wherein the first bending plate comprises a first support plate and a second support plate which are integrally formed, and a first fastener for connecting with a bogie is arranged on a first connecting plate; the second bending plate comprises a third support plate and a fourth support plate which are integrally formed, the third support plate and the second support plate are detachably connected through a second fastener, the fourth support plate is perpendicular to the first support plate and the second support plate, and the third support plate can move and be fixed to be close to or far away from the first support plate; the stone removing baffle is arranged on one surface, far away from the third support plate, of the fourth support plate, the stone removing baffle is detachably connected with the fourth support plate through a third fastener, one end, far away from the first support plate, of the stone removing baffle is arranged close to the rail surface of the rail, and the stone removing baffle can move and be fixed to be close to or far away from the second support plate; the first bending plate, the second bending plate and the stone discharge baffle are all made of aluminum alloy.
In one embodiment of the disclosure, the first support plate and the third support plate are provided with a first strip-shaped hole, and through holes are symmetrically arranged on two sides of the first strip-shaped hole; the second support plate and the fourth support plate are provided with a second strip-shaped hole and a waist-shaped hole which are vertical to the extending direction of the first strip-shaped hole; arranging a first fastener to respectively penetrate through the through holes of the first support plate to be connected with the bogie; arranging a second fastener to penetrate through the through hole of the third support plate and the second strip-shaped hole of the second support plate, arranging the second fastener to penetrate through the first strip-shaped hole of the third support plate and the waist-shaped hole of the second support plate, and detachably connecting the third support plate and the second support plate; and the third fasteners are arranged to respectively penetrate through the waist-shaped holes of the fourth support plate, so that the stone removing baffle is detachably connected with the fourth support plate.
In one embodiment of the present disclosure, each of the first bending plate and the second bending plate includes a bending plate body and a reinforcing rib integrally formed with the bending plate body.
In one embodiment of the present disclosure, the stone deflector is provided as a wave-shaped plate, and the stone deflector includes a wave web and a flat plate connected to a straight edge of the wave web.
In one embodiment of the disclosure, one end of the stone discharging baffle, which is far away from the first support plate, is provided with a wheel tread shape.
In an embodiment of the present disclosure, the stone deflector further includes an elastic buffer member, the elastic buffer member is installed between the stone deflector and the fourth supporting plate and is in contact with the stone deflector and the fourth supporting plate respectively, and the elastic buffer member is provided with a mounting hole for the third fastener to pass through.
In one embodiment of the disclosure, the side of the elastic buffer part contacting with the fourth support plate is a plane, and the side contacting with the stone deflector is arranged to be a wavy surface.
According to another aspect of the present disclosure, there is provided a method of manufacturing a stone ejector, including:
preparing alloy powder according to the components of the aluminum alloy and uniformly mixing;
performing ball milling treatment on the uniformly mixed alloy powder;
carrying out hot-pressing sintering on the alloy powder subjected to ball milling to form a blank of the first bending plate, a blank of the second bending plate and a blank of the stone-removing baffle;
respectively extruding the blank of the first bending plate, the blank of the second bending plate and the blank of the stone-removing baffle plate in a backward extrusion mode to form the first bending plate, the second bending plate and the stone-removing baffle plate;
and assembling the first bending plate, the second bending plate and the stone-removing baffle into the stone remover.
In one embodiment of the present disclosure, the ball milling treatment of the uniformly mixed alloy powder includes: the ball milling process comprises the following steps: the rotating speed is 250r/min, the ball-material ratio is 10:1, the ball milling time is 30h, and the rotation is stopped for 10min after every 10min of rotation.
In one embodiment of the present disclosure, the pressing the blank of the first bending plate, the blank of the second bending plate and the blank of the stone exhausting baffle by backward pressing comprises: heating the blank of the first bending plate, the blank of the second bending plate and the blank of the stone-removing baffle to 800 ℃, heating the extrusion dies corresponding to the blanks to 750 ℃, and extruding the blanks of the first bending plate, the second bending plate and the stone-removing baffle at the extrusion speed of 0.7mm/min by using the corresponding extrusion dies.
The utility model discloses a stone remover, including first board of buckling, the second board of buckling and row's stone baffle, the stone remover includes first board of buckling, the second board of buckling and row's stone baffle. The first bending plate, the second bending plate and the stone discharging baffle are made of aluminum alloy materials, the aluminum alloy materials can meet the requirements of corrosion resistance, vibration resistance, specific strength, high specific rigidity, wear resistance and the like, the weight of the aluminum alloy materials is light, the overall weight of the stone discharging device is greatly reduced, and the impact between wheels and rails is reduced. First board and the second board of buckling and stone discharge baffle and the second board of buckling are all buckled through the fastener and are all dismantled and be connected, and the mode of connecting through the fastener between two connecting plates has reduced the problem that the fracture became invalid easily to appear in the junction of part. The structure that will arrange the stone baffle and connect and adjust sets up to the same bent plate, does benefit to batch production, can reduce manufacturing cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 is an isometric view of a bending plate according to an embodiment of the present disclosure.
FIG. 2 is a front view of a bending plate according to an embodiment of the present disclosure.
FIG. 3 is a top view of a bending plate according to an embodiment of the present disclosure.
Fig. 4 is an isometric view of a stone ejector according to an embodiment of the present disclosure.
Fig. 5 is a top view of a stone ejector according to an embodiment of the present disclosure.
Fig. 6 is a right side view of a stone ejector according to an embodiment of the present disclosure.
Fig. 7 is a left side view of a stone ejector according to an embodiment of the present disclosure.
Fig. 8 is a front view of a stone ejector according to an embodiment of the present disclosure.
Fig. 9 is a top view of a stone deflector according to an embodiment of the disclosure.
Fig. 10 is a front view of a stone discharge baffle according to an embodiment of the present disclosure.
Fig. 11 is an isometric view of an elastomeric bumper according to an embodiment of the present disclosure.
Fig. 12 is a flowchart of a method for manufacturing a stone ejector according to an embodiment of the present disclosure.
Fig. 13 is a process diagram illustrating a method for manufacturing a stone ejector according to an embodiment of the present disclosure.
In the figure: 1-a first bending plate, 101-a first support plate, 102-a second support plate, 2-a second bending plate, 201-a third support plate, 202-a fourth support plate, 10-a bending plate body, 20-a reinforcing rib, 30-a first through hole, 40-a first strip-shaped hole, 50-a second strip-shaped hole, 60-a waist-shaped hole, 70-a second through hole, 80-a mounting hole, 3-a first fastener, 4-a second fastener, 5-a stone-removing baffle, 501-a wave web plate, 502-a flat plate, 6-a third fastener and 7-an elastic buffer.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.
In the correlation technique, a stone remover commonly used for locomotives is provided, the components of the stone remover are formed by welding plate-shaped steel, and because the main body is made of traditional steel, the stone remover has the following defects in the design process: the corrosion resistance of steel is poor, particularly at a welding seam, 85% of corrosion is counted from the welding seam by a big data system, and the service life of the stone remover is seriously influenced; the stone remover made of steel is overall heavier, is not in accordance with the design concept of locomotive lightweight, and is arranged at the lower part of the spring, so that the impact force between wheel rails is increased.
The existing stone removing device is composed of steel and rubber baffles with poor wear resistance, the height of a stone removing part from a rail surface is generally controlled to be about 20mm, and the stone removing part cannot be in close contact with the rail surface, so that stones with small sizes and other obstacles cannot be removed, and potential safety hazards are brought to the operation of a locomotive; the stone remover mainly bears severe working conditions such as high-frequency vibration, collision impact, abrasion and the like, and cracks appear at the welding seam of parts in the operation process due to the reasons such as poor fatigue resistance, low specific rigidity and low specific strength of steel, so that the safety of a locomotive is seriously influenced. The existing steel cannot meet the performance requirements of light weight, corrosion resistance, high strength, vibration resistance, good wear resistance and the like at the same time.
In view of the current situation of the application of the locomotive stone deflector, the development of products meeting the characteristics of light weight, high strength, corrosion resistance, abrasion resistance and vibration resistance, and meeting the requirements of high dimensional accuracy and suitability for mass production is urgently needed. The 7-series aluminum alloy can simultaneously meet the use requirements, but the application of the 7-series aluminum alloy to the stone remover has the following problems: at present, 7-series aluminum alloy is less applied in the rail transit industry, and is lack of basic design theory and design scheme and corresponding technical support when applied to a bearing part; the welding performance of 7 series aluminum alloy is poor, and the whole strength of a bogie stress part is generally improved by welding reinforcing ribs, so that the application of 7075 aluminum alloy in a stone remover is limited to a great extent due to poor welding process.
The disclosed embodiments provide a stone ejector. As shown in fig. 1 to 11, the stone ejector comprises a first bending plate 1, a second bending plate 2 and a stone ejecting baffle 5, wherein the first bending plate 1 comprises a first support plate 101 and a second support plate 102 which are integrally formed, and a first fastening piece 3 for connecting with a bogie is arranged on a first connecting plate; the second bending plate 2 comprises a third support plate 201 and a fourth support plate 202 which are integrally formed, the third support plate 201 is detachably connected with the second support plate 102 through a second fastener 4, the fourth support plate 202 is perpendicular to the first support plate 101 and the second support plate 102, and the third support plate 201 can move and be fixed to be close to or far away from the first support plate 101; the stone-removing baffle 5 is arranged on one surface, far away from the third support plate 201, of the fourth support plate 202, the stone-removing baffle 5 is detachably connected with the fourth support plate 202 through a third fastener 6, one end, far away from the first support plate 101, of the stone-removing baffle 5 is arranged close to the rail surface of the rail, and the stone-removing baffle 5 can move and be fixed to be close to or far away from the second support plate 102; the first bending plate 1, the second bending plate 2 and the stone discharge baffle 5 are all made of aluminum alloy.
The first bending plate 1, the second bending plate 2 and the stone discharging baffle 5 are made of aluminum alloy materials, the aluminum alloy materials can meet the requirements of corrosion resistance, vibration resistance, specific strength, high specific rigidity, wear resistance and the like, the weight of the aluminum alloy materials is light, the overall weight of the stone discharging device is greatly reduced, and the impact between wheels and rails is reduced. First board 1 and the second board 2 of buckling and arrange stone baffle 5 and the second board 2 of buckling all can dismantle through the fastener and be connected, and the mode of connecting through the fastener between two connecting plates has reduced the problem that the fracture became invalid easily to appear in the junction of part. The structure that will arrange stone baffle 5 and connect and adjust sets up to the same bent plate, does benefit to batch production, can reduce manufacturing cost.
As shown in fig. 1, the first bending plate 1 and the second bending plate 2 are configured as identical L-shaped bending plates, i.e. the bending angles and dimensions of the first bending plate 1 and the second bending plate 2 are the same. In one embodiment, the bending angles of the first bending plate 1 and the second bending plate 2 are set to 90 degrees, i.e., the first support plate 101 and the second support plate 102 are perpendicular to each other, and the third support plate 201 and the fourth support plate 202 are perpendicular to each other.
As shown in fig. 2 and 3, the first support plate 101 and the third support plate 201 are provided with a first strip-shaped hole 40, and four first through holes 30 are symmetrically arranged on two sides of the first strip-shaped hole 40; the second support plate 102 and the fourth support plate 202 are provided with two second bar-shaped holes 50 perpendicular to the extending direction of the first bar-shaped hole 40, and two waist-shaped holes 60 are arranged between the two second bar-shaped holes 50 at intervals.
As shown in fig. 4 to 7, four first fasteners 3 are arranged to pass through the four first through holes 30 of the first support plate 101 to be connected with the bogie. A second fastening piece 4 is arranged to penetrate through two first through holes 30 on the third support plate 201 and two second strip-shaped holes 50 on the second support plate 102, and the other second fastening piece 4 penetrates through a first strip-shaped hole 40 on the third support plate 201 and a waist-shaped hole 60 on the second support plate 102, so that the third support plate 201 and the second support plate 102 are detachably connected.
As shown in fig. 8, two second through holes 70 are provided on the stone deflector 5, and two second fasteners 4 respectively pass through the two waist-shaped holes 60 of the fourth support plate 202 and the two second through holes 70 on the stone deflector 5, so as to detachably connect the stone deflector 5 and the fourth support plate 202.
By adjusting the positions of the two second fastening members 4 connected with the two second strip-shaped holes 50 of the second support plate 102 and the positions of the other second fastening member 4 connected with the kidney-shaped hole 60 of the second support plate 102, the third support plate 201 can be adjusted to be close to or far away from the first support plate 101, that is, the position of the second bending plate 2 relative to the first bending plate 1 in the vertical direction can be adjusted, and further the position of the stone exhausting baffle 5 in the vertical direction can be adjusted. The position of the stone deflector 5 in the horizontal direction can be adjusted by adjusting the position at which the two third fasteners 6 are connected to the kidney-shaped holes 60 of the fourth plate 202.
It should be noted that the first bending plate 1, the second bending plate 2 and the stone discharge plate are all made of aluminum alloy by pressing, and the first strip-shaped hole 40, the first through hole 30, the second strip-shaped hole 50 and the waist-shaped hole 60 can be directly formed when the first bending plate 1 and the second bending plate 2 are processed. The first fastener 3, the second fastener 4, and the third fastener 6 may employ bolts and nuts. The aluminum alloy specifically refers to 7075 aluminum alloy, namely Al-Zn-Mg-Cu aluminum alloy.
Referring again to fig. 4, an elastic buffer 7 is provided between the stone deflector 5 and the fourth support plate 202, and the elastic buffer 7 is in contact with the stone deflector 5 and the fourth support plate 202, respectively. The number of the elastic buffer members 7 is two, the two elastic buffer members 7 are arranged side by side, the mounting holes 80 are formed in the elastic buffer members 7, the two third fasteners 6 penetrate through the two mounting holes 80 respectively, and the two elastic buffer members 7 are fixed between the stone discharge baffle 5 and the fourth support plate 202. The elastic buffer member 7 effectively relieves the impact and stress of the barrier on the stone removing baffle 5, and meanwhile, the stone removing baffle 5 has an elastic reset function. Specifically, the elastic buffer 7 may be a rubber member.
Referring again to fig. 1, each of the first bending plate 1 and the second bending plate 2 includes a bending plate body 10 and a reinforcing rib 20, and the reinforcing rib 20 is integrally formed with the bending plate body 10. The reinforcing beads 20 may be set to be 10mm from the edge of the bent plate body 10. Utilize the strong characteristics of aluminum alloy plasticity, realize buckling board body 10 and strengthening rib 20 integrated design, first buckle board 1 and second buckle board 2 from taking strengthening rib 20, need not to weld strengthening rib 20 and the board body 10 of buckling again, alright reach the effect of the first board 1 of buckling of reinforcing and the second board 2 of buckling's intensity.
As shown in fig. 9 and 10, the stone deflector 5 is provided as a wave-shaped plate, and the wave-shaped plate includes a wave web 501 and a flat plate 502 connected to a straight edge of the wave web 501. Compared with the flat plate 502 structure, the integral strength, rigidity and stability of the stone discharge baffle 5 can be obviously improved, and the failure rate of the stone discharge baffle is reduced. One end of the stone discharging baffle 5 far away from the first support plate 101 is provided with a wheel tread shape. The free end of the stone discharge baffle 5 is in the shape of a wheel tread, the stone discharge baffle 5 can be in close contact with a track due to high wear resistance, small-size obstacles are removed, and the safe operation of the locomotive is guaranteed
As shown in fig. 11, in order to adapt to the shape of the stone deflector 5, the elastic buffer 7 is tightly fitted with the stone deflector 5 and the second bending plate 2, one side of the elastic buffer 7 contacting the fourth support plate 202 is a plane, one side contacting the stone deflector 5 is a wavy surface, and the elastic buffer 7 is provided with a mounting hole 80 for the third fastening member 6 to pass through.
It can be understood that, the stone remover strengthens the integrated design theory in structural design from structural design aspect, and the strong characteristics of full play aluminum alloy plasticity design first bent plate 1, second bent plate 2 and stone removal baffle 5 are from taking strengthening rib 20, follow-up need not to weld separately again and process strengthening rib 20.
The first bending plate 1 and the second bending plate 2 have the same structure, and only one set of forming die is needed to complete the production of the first bending plate 1 and the second bending plate 2, so that the manufacturing cost of products is reduced. And the first bending plate 1 and the second bending plate 2 can simultaneously meet the requirements of connecting the bogie and adjusting the height of the stone exhausting baffle 5.
As shown in fig. 12 and 13, the disclosed embodiments provide a method of manufacturing a stone ejector, including:
step S10, preparing alloy powder according to the components of the aluminum alloy and uniformly mixing;
step S20, performing ball milling treatment on the uniformly mixed alloy powder;
step S30, carrying out hot-pressing sintering on the alloy powder subjected to ball milling to form a blank of the first bending plate 1, a blank of the second bending plate 2 and a blank of the stone-discharging baffle 5;
step S40, respectively extruding the blank of the first bending plate 1, the blank of the second bending plate 2 and the blank of the stone-removing baffle 5 in a backward extrusion mode to form the first bending plate 1, the second bending plate 2 and the stone-removing baffle 5;
step S50, assembling the first bending plate 1, the second bending plate 2 and the stone-removing baffle 5 into a stone remover.
The high-energy ball milling and hot pressing sintering process can effectively avoid the component segregation of the prepared material, and the coarse powder is prepared into the nano powder through the high-speed impact, grinding and other effects of ball milling, so that the preparation method has obvious advantages in the field of high-performance powder metallurgy materials. The backward extrusion has the characteristics of uniform metal flow, uniform deformation, capability of performing low-temperature extrusion, high precision of extruded products and the like. By adopting the high-energy ball milling, hot-pressing sintering method and the backward extrusion process, the process flow can be simplified, the cost can be controlled, the product precision can be improved by a backward extrusion large plastic deformation method, the internal defects of the ingot blank can be reduced, the crystal grains can be refined, and the mechanical property can be improved.
The first bending plate 1, the second bending plate 2 and the stone-removing baffle 5 are prepared in the same process, and the first bending plate 1 is taken as an example for explanation.
And preparing a blank of the first bending plate 1 by adopting a high-energy ball milling-hot pressing sintering method.
Firstly, ball-milling raw materials are alloy powder, the alloy powder comprises nitrogen atomized 7075 alloy powder and Al, Zn, Mg and Cu element powder, and the alloy powder is prepared according to the components of 7075 alloy in the table 1 and is uniformly mixed.
TABLE 17075 aluminum alloy compositions table
Figure BDA0003268938710000091
Carrying out ball milling treatment on the alloy powder in a high-energy ball mill, wherein the ball milling process comprises the following steps: the rotating speed is 250r/min, the ball-material ratio is 10:1, and the ball milling time is 30 h. In order to avoid the over-high temperature of the ball milling tank, the rotation is stopped for 10min after every 10min of rotation.
And (3) putting the alloy powder subjected to ball milling into a graphite die corresponding to the first bending plate 1, cold pressing at room temperature under the pressure of 100MPa, and sintering for 1h under the pressure of 300 MPa. And cooling along with the furnace after sintering is finished, and taking out the blank.
The 7075 aluminum alloy material part is prepared by a backward extrusion method.
Firstly, heating the blank of the first bending plate 1 to 800 ℃ through a resistance wire, heating a male die and a female die in an extrusion die corresponding to the first bending plate 1 to 750 ℃, extruding the blanks at the speed of 0.7mm/min, respectively, and extruding the reinforcing ribs of the first bending plate 1 through a backward extrusion method. The second bending plate 2 is produced in exactly the same process as the first bending plate 1.
The manufacturing process of the stone removing baffle 5 is basically the same as the above process, and the difference is that a graphite die corresponding to the stone removing baffle 5 is adopted during hot-press sintering, an extrusion die corresponding to the stone removing baffle 5 is adopted during backward extrusion, and the structure of the wave web 501 is formed by extrusion.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. A stone ejector, comprising:
the first bending plate comprises a first support plate and a second support plate which are integrally formed, and a first fastener for connecting the first connecting plate with the bogie is arranged on the first connecting plate;
the second bending plate comprises a third support plate and a fourth support plate which are integrally formed, the third support plate and the second support plate are detachably connected through a second fastener, the fourth support plate is perpendicular to the first support plate and the second support plate, and the third support plate can move and be fixed to be close to or far away from the first support plate;
the stone removing baffle is arranged on one surface, far away from the third support plate, of the fourth support plate, the stone removing baffle is detachably connected with the fourth support plate through a third fastener, one end, far away from the first support plate, of the stone removing baffle is arranged close to the rail surface of the rail, and the stone removing baffle can move and be fixed to be close to or far away from the second support plate;
the first bending plate, the second bending plate and the stone discharge baffle are made of aluminum alloy.
2. The stone ejector of claim 1, wherein the first and third support plates are provided with a first strip-shaped hole, and through holes are symmetrically formed on two sides of the first strip-shaped hole; the second support plate and the fourth support plate are provided with a second strip-shaped hole and a waist-shaped hole which are vertical to the extending direction of the first strip-shaped hole; the first fasteners are arranged to penetrate through the through holes of the first support plate respectively and connected with a bogie; the second fastening piece is arranged to penetrate through the through hole of the third support plate and the second strip-shaped hole of the second support plate, the second fastening piece is arranged to penetrate through the first strip-shaped hole of the third support plate and the waist-shaped hole of the second support plate, and the third support plate is detachably connected with the second support plate; and arranging third fasteners to respectively penetrate through the waist-shaped holes of the fourth support plate, and detachably connecting the stone discharge baffle with the fourth support plate.
3. The stone ejector of claim 1, wherein the first bend plate and the second bend plate each include a bend plate body and a stiffener integrally formed with the bend plate body.
4. The stone ejector of claim 1, wherein the stone ejector is provided as a wave plate, the stone ejector comprising a wave web and a flat plate connected to a straight edge of the wave web.
5. The stone ejector of claim 1, wherein an end of the stone ejector baffle remote from the first plate is provided with a tread shape.
6. The stone ejector of claim 4, further comprising:
and the elastic buffer piece is arranged between the stone discharge baffle and the fourth support plate, and is respectively contacted with the stone discharge baffle and the fourth support plate, and the elastic buffer piece is provided with a mounting hole for the third fastener to pass through.
7. The stone ejector of claim 6, wherein the side of the resilient buffer in contact with the fourth plate is flat and the side in contact with the stone ejector is configured as a wavy surface.
8. A method for manufacturing a stone remover is characterized by comprising the following steps:
preparing alloy powder according to the components of the aluminum alloy and uniformly mixing;
performing ball milling treatment on the uniformly mixed alloy powder;
carrying out hot-pressing sintering on the alloy powder subjected to ball milling to form a blank of the first bending plate, a blank of the second bending plate and a blank of the stone-removing baffle;
respectively extruding the blank of the first bending plate, the blank of the second bending plate and the blank of the stone-removing baffle plate in a backward extrusion mode to form the first bending plate, the second bending plate and the stone-removing baffle plate;
and assembling the first bending plate, the second bending plate and the stone-removing baffle into the stone remover.
9. The method for manufacturing the stone ejector according to claim 8, wherein the ball milling treatment is performed on the uniformly mixed alloy powder, and comprises the following steps:
the ball milling process comprises the following steps: the rotating speed is 250r/min, the ball-material ratio is 10:1, the ball milling time is 30h, and the rotation is stopped for 10min after every 10min of rotation.
10. The method of making a stone ejector as recited in claim 8, wherein extruding the first bend plate blank, the second bend plate blank and the stone ejector baffle blank by backward extrusion comprises:
heating the blank of the first bending plate, the blank of the second bending plate and the blank of the stone-removing baffle to 800 ℃, heating the extrusion dies corresponding to the blanks to 750 ℃, and extruding the blanks of the first bending plate, the blanks of the second bending plate and the blanks of the stone-removing baffle by adopting the corresponding extrusion dies at an extrusion speed of 0.7 mm/min.
CN202111095131.9A 2021-09-17 2021-09-17 Stone exhauster and its making process Active CN113798343B (en)

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