CN114850404A

CN114850404A - High-speed rail transit braking part casting mold structure and manufacturing process thereof

Info

Publication number: CN114850404A
Application number: CN202210567313.XA
Authority: CN
Inventors: 曹霞; 徐吉; 江炜; 龙兵; 高双胜; 白建会; 李春娟
Original assignee: Changzhou Institute of Technology
Current assignee: Changzhou Institute of Technology
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-05

Abstract

The invention discloses a high-speed rail transit braking part casting mold structure and a manufacturing process thereof. The invention overcomes the problems that the sand core for forming the middle through hole is generally positioned with the upper box or the lower box in the existing casting mould structure, the position of the sand core is changed in the casting process to easily cause core deviation, thereby generating inferior products, and meanwhile, the later-period demoulding and part taking are inconvenient, manual assistance is required, and the demoulding treatment effect is poor.

Description

High-speed rail transit braking part casting mold structure and manufacturing process thereof

Technical Field

The invention relates to the technical field of high-speed rail transit brake casting molds, in particular to a high-speed rail transit brake casting mold structure and a manufacturing process thereof.

Background

The urban high-speed rail transit system is a transit system which uses vehicles to run on a fixed guide rail in cities and is mainly used for urban passenger transport, a braking part is used as an important accessory of urban high-speed rail transit, the service life of the braking part is influenced by the quality of a machining process, and most of the existing urban high-speed rail transit braking parts are cast by using a casting process.

The utility model is CN201810299936.7, the name is a molding machine for casting and smelting, which comprises a molding machine body, a base is arranged at the bottom end of the molding machine body, a through groove is arranged on the upper surface of the base, the bottom end of the molding machine body penetrates through the through groove and extends to the inside of the base, a slide rail is fixedly connected with the bottom surface of the molding machine body, two symmetrical slide blocks are clamped inside the slide rail, a pin shaft is fixedly hinged on the outer surface of each slide block, two movable plates are fixedly connected with the two side surfaces of the molding machine body, a through hole is arranged on the upper surface of each movable plate, a cavity is arranged inside the base, a first fixed plate is fixedly connected with the inner side wall of the cavity, a fixed rod is fixedly connected with the upper surface of the first fixed plate, the top end of the fixed rod penetrates through the through hole and extends to the outside of the movable plate, and the upper surface of the fixed rod is fixedly connected with the inner wall of the cavity, the outer surface of the fixed rod is wound with a first spring, two ends of the first spring are fixedly connected with the bottom surface of the movable plate and the upper surface of the first fixed plate respectively, two symmetrical sleeves are fixedly connected with the inner bottom wall of the cavity, the fixed block is fixedly connected with the inner bottom wall of each sleeve, the lifting plate is arranged inside each sleeve, the molding machine for casting and smelting is used, the handles fixedly connected with the two side surfaces of the base can be used more conveniently, the working efficiency is improved, the hands can be effectively protected through the soft pads fixedly connected with the outer surfaces of the handles, the hand abrasion is avoided, the friction force between the handles and the hands can be effectively enhanced through the anti-slip patterns arranged on the outer surfaces of the soft pads, the labor is saved during use, the situation that the third spring deforms due to long-time extrusion can be effectively avoided through the fixed blocks fixedly connected with the inner bottom walls of the sleeves, and the service life of the third spring is prolonged, elasticity can be effectively increased through the third spring of fixed block surface winding, whole shock attenuation effect is improved, elasticity can be effectively strengthened through the second spring of lifter surface winding, makes whole shock attenuation effect obtain improving, stopper through slide rail both ends fixed connection can effectively avoid the slider from the both ends roll-off of slide rail, influences overall structure's normal use.

However, in the casting mold structure, the sand core for forming the middle through hole is generally positioned with the upper box or the lower box, and the position of the sand core is changed in the casting process, so that core deviation is easily caused, defective products are generated, and meanwhile, the later-stage demolding and taking of the parts are inconvenient, manual assistance is needed, and the demolding treatment effect is poor.

Disclosure of Invention

The invention aims to provide a high-speed rail transit brake part casting mold structure and a manufacturing process thereof, aiming at improving the problems.

The invention is realized in the following way: a high-speed rail transit braking part casting mold structure comprises a casting mold component, a supporting component and a material lifting component, wherein the casting mold component is used for casting and molding a high-speed rail transit braking part;

the casting mold assembly comprises an upper box and a lower box, wherein the upper box and the lower box are respectively filled with a first sand core and a second sand core, and castings are cast in the first sand core and the second sand core;

the supporting component is arranged right below the casting mold component and used for supporting the casting mold component to perform pouring;

the material lifting assembly is arranged on one side of the supporting assembly and used for lifting the upper box and the lower box to perform closed pouring.

Furthermore, a gate rod is inserted into the top surface of the upper box and vertically penetrates through the inner cavity of the first sand core downwards, a guide cylinder is assembled at the top end of the gate rod, an exhaust hole is formed in the cavity of the upper box top surface, which vertically penetrates through the first sand core and the second sand core downwards, and a plurality of lifting rings are fixed on the upper box top surface.

Further, the inside of draft tube is vertically downwards fixed with the exhaust sleeve of a plurality of toper structures, and the bottom of draft tube is vertically link up and is fixed with the equipment spiral shell section of thick bamboo, has seted up the internal thread on the terminal surface in the top of runner stick, and the equipment spiral shell section of thick bamboo is connected with the interior screw-thread fit on the runner stick.

Furthermore, a plurality of stepped brake discs are arranged on the casting along the vertical direction, a brake cylinder vertically penetrates through the plurality of stepped brake discs, a groove matched with the plurality of stepped brake discs is vertically and downwards formed in the second sand core of the lower box, and a convex block matched with the brake cylinder is vertically and downwards arranged on the first sand core of the upper box.

Further, equal vertical first screw hole frame and the second screw hole frame of being fixed with on the vertical terminal surface in the outside of last case and nowel, and equal vertical screw thread has seted up the screw on the adjacent horizontal terminal surface of first screw hole frame and second screw hole frame, and the adjacent screw of first screw hole frame and second screw hole frame passes through positioning bolt and fixes a position, and the vertical terminal surface bottom level in the outside of nowel is fixed with fixed screw hole board, and vertical downward screw thread installs fixing bolt in the fixed screw hole board.

Further, the supporting component comprises a lifting frame plate and a lifting hole frame, wherein the lifting frame plate is horizontally arranged under the casting mold component, a connecting screw hole plate is horizontally fixed on the top surface of the lifting frame plate, the connecting screw hole plate is connected with a fixing bolt on the fixing screw hole plate in a threaded assembly mode, the lifting hole frame is arranged under the lifting frame plate, a plurality of guide rods are vertically and downwards fixed on the bottom surface of the lifting frame plate, jacks are vertically and downwards formed in the top surface of the lifting hole frame, the guide rods are vertically and slidably inserted into the jacks of the lifting hole frame, a plurality of vibration springs are vertically fixed between the lifting frame plate and the lifting hole frame, and a vibration motor is horizontally fixed on the bottom surface of the lifting frame plate.

Further, it includes lifting frame, balladeur train and lift screw hole board to lift the material subassembly, wherein lifts the horizontal setting of frame, and lifts the one end of frame and fix the one end of lifting the frame board, lifts and vertically be fixed with the balladeur train on the top surface of frame, and the level is provided with the lift screw hole board between the balladeur train, is connected with the lifting screw through the vertical rotation of bearing in the balladeur train, and the vertical screw thread of lifting screw runs through the setting of lift screw hole board.

Further, the lifting screw hole plate is provided with the upper level and hangs the subassembly, hangs the subassembly and includes diaphragm, carousel and sliding sleeve board, and wherein the diaphragm level is fixed on the lifting screw hole plate, and the diaphragm upper level is provided with the carousel, and the vertical rotary drum that is fixed with on the carousel, and the rotary drum passes through the bearing and is connected with the carousel rotation, and the carousel top surface upper level is fixed with two translation poles, and the slip cap board of pegging graft is established to the slip cap between two translation poles.

Furthermore, a lifting rope is vertically and downwards fixed on the bottom surface of the sliding sleeve plate, a lifting hook is fixed at the bottom end of the lifting rope on the sliding sleeve plate, a horizontal pushing cylinder is horizontally fixed on the top surface of the rotary table, and the output end of the horizontal pushing cylinder is connected to the sliding sleeve plate.

A manufacturing process of a brake of high-speed rail transit comprises the following steps:

step 1: manufacturing a first sand core: placing sand in a mould for manufacturing the first sand core, and then coating the external surface of the first sand core;

step 2: manufacturing a second sand core: placing a gate rod in a mold for manufacturing the second sand core, then placing sand, lifting the second sand core out of the mold of the second sand core through a lifting hook in the material lifting assembly, coating the outer side surface of the second sand core matched with the lower box for more than three times, and coating the inner surface of the second sand core for more than three times; the coating is added for at least three times, so that sand inclusion of the casting can be avoided;

and step 3: manufacturing an upper box: placing a gate bar in a mold for manufacturing an upper box, and then placing sand, wherein the sand mold needs to be compact, and an opening at the upper end of the upper box is used for exhausting and allowing the gate bar to pass through;

and 4, step 4: manufacturing a lower box: placing sand in a die for manufacturing a lower box, wherein the bottom of the lower box is provided with a runner, coating is not carried out on a positioning surface of the lower box, which is contacted with the side surface of the second sand core, and coating is carried out on the runner and a bottom molding surface;

and 5: placing the first sand core on the lower box, covering the upper box on the lower box, positioning and connecting the upper box and the lower box through positioning screws on the first screw hole frame and the second screw hole frame, and checking whether the gaps between the first sand core and the periphery of the upper box are uniform or not when the positioning screws are screwed down;

step 6: removing the whole formed by the upper box and the first sand core, placing the second sand core in the lower box, placing a filter block in the flow channel, coating glue between the second sand core and the lower box, and placing a box sealing mud strip on the lower box;

and 7: placing the whole formed by the upper box and the first sand core on the lower box for mould assembling, checking a gap between the upper box and the lower box to determine whether the upper box and the lower box are combined to be solid, then placing a pouring gate and a dead head, surrounding the pouring gate and the dead head by resin sand, and finally fastening the upper box and the lower box by screws and firmly welding by electric welding to prevent the upper box and the lower box from moving away;

and 8: putting a certain amount of scrap steel into a medium-frequency electric furnace to be melted into molten steel, when the temperature in the medium-frequency electric furnace rises to 1000-1080 ℃, putting steel ingots, pig iron and foundry returns, then discharging slag, adding ferromanganese and ferrosilicon alloy after slag discharge, tapping when the temperature in the medium-frequency electric furnace rises to 1380 ℃, at the moment, pouring a certain amount of copper and ferromolybdenum together with the molten iron, starting to treat for 3 minutes by adopting ultrasonic wave at the 5 th minute of pouring, taking out a braking part casting after pouring for 15 minutes, wherein the weight percentage of each chemical component of the braking part casting meets the following requirements: 2.13 to 2.44 percent of carbon, 0.12 to 0.15 percent of manganese, 0.04 to 0.06 percent of vanadium, 0.89 to 1.12 percent of silicon, 0.01 to 0.03 percent of tungsten, 0.42 to 0.45 percent of nickel, 0.20 to 0.30 percent of chromium, 0.32 to 0.38 percent of copper, 0.10 to 0.12 percent of molybdenum, less than or equal to 0.0022 percent of phosphorus, less than or equal to 0.0033 percent of sulfur and the balance of iron;

and step 9: and cooling the cast mold structure after pouring, and lifting the upper box by using the material lifting assembly so as to demould the formed braking member.

Compared with the prior art, the invention has the beneficial effects that: the invention

(1) Assembling and molding the casting mold assembly to complete the assembly of the mold and the manufacture of the cavity, supporting the casting mold assembly by using the supporting assembly, generating vibration at the same time, facilitating the entry of metal solution and the later demolding, and facilitating the auxiliary lifting of the casting mold assembly by using the material lifting assembly to perform mold closing and demolding;

(2) the supporting component is arranged right below the casting mold component and used for supporting the casting mold component to perform pouring; the support component comprises a frame lifting plate and a hole lifting frame, wherein the frame lifting plate is horizontally arranged right below the casting mold component, a connecting screw hole plate is horizontally fixed on the top surface of the frame lifting plate, a fixed screw hole plate is horizontally fixed at the bottom of the outer vertical end surface of the lower box, a fixing bolt is vertically and downwards screwed in the fixed screw hole plate, the connecting screw hole plate is in threaded assembly connection with the fixing bolt on the fixed screw hole plate, so that the casting mold component and the support component are assembled, the stability is kept, the hole lifting frame is arranged right below the frame lifting plate, a plurality of guide rods are vertically and downwards fixed on the bottom surface of the frame lifting plate, jacks are vertically and downwards formed in the top surface of the hole lifting frame, the guide rods are vertically and slidably inserted into the jacks of the hole lifting frame, a plurality of vibration springs are vertically fixed between the frame lifting plate and the hole lifting frame, a vibration motor is horizontally fixed on the bottom surface of the frame lifting plate, and when the support component is used, the frame lifting plate is driven to slide up and down on the hole lifting frame by starting motor, thereby accelerating the later demoulding and the rapid flow of the molten metal in the runner;

(3) the lifting assembly is arranged on one side of the supporting assembly and used for lifting the upper box and the lower box for closed pouring, the lifting assembly comprises a lifting frame, a sliding frame and a lifting screw hole plate, wherein the lifting frame is horizontally arranged, one end of the lifting frame is fixed at one end of a lifting frame plate, the sliding frame is vertically fixed on the top surface of the lifting frame, the sliding frame comprises two rotating hole plates horizontally arranged along the vertical direction, a plurality of lifting guide rods are vertically fixed between the two rotating hole plates, the lifting screw hole plate is horizontally arranged between the sliding frames, a lifting screw rod is vertically and rotatably connected in the sliding frame through a bearing, two ends of the lifting screw rod are rotatably and penetratingly connected onto the rotating hole plates at the upper end and the lower end of the sliding frame through bearings, a lifting motor is vertically fixed on the rotating hole plates, an output end of the lifting screw rod is connected with one end of the lifting screw rod and used for driving the lifting screw rod to rotate, and the lifting screw rod is vertically and penetrates through the lifting screw hole plate, the lifting screw hole plate is vertically provided with a screw hole in threaded fit with the lifting screw rod in a penetrating way, and the lifting screw hole plate is horizontally provided with a hanging assembly.

(4) The hanging component comprises a transverse plate, a rotary disc and a sliding sleeve plate, wherein the transverse plate is horizontally fixed on the lifting screw hole plate, a rotating disc is horizontally arranged on the transverse plate, a rotating drum is vertically fixed on the rotating disc and is rotationally connected with the rotating disc through a bearing, a rotating rod is vertically and downwards fixed on the bottom surface of the rotating disc, the rotating rod is inserted and fixed in the inner ring of the bearing, two translation rods are horizontally fixed on the top surface of the turntable, a sliding sleeve plate is inserted between the two translation rods in a sliding way, sliding cylinders are horizontally fixed on both sides of the sliding sleeve plate, and the sliding cylinder is sleeved on the translation rod in a sliding manner, a lifting rope is vertically and downwards fixed on the bottom surface of the sliding sleeve plate, a lifting hook is fixed at the bottom end of the lifting rope on the sliding sleeve plate, a horizontal pushing cylinder is horizontally fixed on the top surface of the rotary table, and the output end of the horizontal pushing cylinder is connected to the sliding sleeve plate, and the horizontal pushing cylinder horizontally pushes the sliding sleeve plate to hang the upper box for die assembly and demolding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of the whole of a high-speed rail transit brake casting mold structure;

FIG. 2 is an exploded view of the brake mold structure of the high speed rail transit vehicle;

FIG. 3 is an exploded view of a mold assembly in an embodiment of a high speed rail transit brake shoe mold structure;

FIG. 4 is an exploded view of a casting in an embodiment of a high speed rail traffic brake cast mold structure;

FIG. 5 is an exploded view of an embodiment of a mold construction for a stopper of a high speed rail transit vehicle;

FIG. 6 is an exploded view of an embodiment of a support assembly of a molded construction of a brake for high speed rail transit;

FIG. 7 is an exploded view of a material lifting assembly in an embodiment of a brake casting structure for high speed rail transit;

FIG. 8 is an exploded view of a material lifting assembly in an embodiment of a brake casting structure for high speed rail transit;

FIG. 9 is an exploded view of a hanger assembly in an embodiment of a high speed rail traffic brake cast structure.

In the figure: 1. a mold assembly; 11. feeding the box; 111. a gate bar; 112. a draft tube; 113. an exhaust sleeve; 114. assembling a screw cylinder; 115. an exhaust hole; 116. a first screw hole frame; 117. positioning the bolt; 118. a hoisting ring; 12. discharging the box; 121. a second screw hole frame; 122. fixing the screw hole plate; 123. fixing the bolt; 13. casting; 131. a brake disc; 132. a brake drum; 14. a first sand core; 15. a second sand core; 151. a groove; 2. a support assembly; 21. lifting the frame plate; 211. connecting a screw hole plate; 22. a guide bar; 23. a hole lifting frame; 24. vibrating a motor; 25. a vibrating spring; 3. a material lifting component; 31. lifting the frame; 32. a carriage; 33. lifting the screw hole plate; 34. a lifting screw; 35. a lifting motor; 36. a hanging component; 361. a transverse plate; 362. a drum; 363. a turntable; 364. a translation rod; 365. a slipcover plate; 366. a hook; 367. and (4) horizontally pushing the cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example 1:

referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8 and fig. 9, a high-speed rail transit brake casting mold structure includes a casting mold assembly 1 for casting a high-speed rail transit brake, a support assembly 2 and a material lifting assembly 3; utilize casting mould subassembly 1 to assemble the preparation of assembling of shaping completion mould and die cavity, then utilize supporting component 2 to carry out the support of casting mould subassembly 1, produce vibrations simultaneously, when making things convenient for metal solution to get into, the later stage of being convenient for is demolded, utilizes to lift material subassembly 3 simultaneously and is convenient for assist lifting casting mould subassembly 1 and carries out the compound die and the drawing of patterns.

The casting mold assembly 1 comprises an upper box 11 and a lower box 12, wherein the upper box 11 and the lower box 12 are respectively filled with a first sand core 14 and a second sand core 15, and a casting 13 is cast and molded in the first sand core 14 and the second sand core 15; the top surface of the upper box 11 is vertically downwards penetrated through the inner cavity of the first sand core 14 and is spliced with a gate rod 111, the top end of the gate rod 111 is assembled with a guide cylinder 112 for guiding metal solution in a later period to conduct liquid, the top surface of the upper box 11 is vertically downwards penetrated through the cavities of the first sand core 14 and the second sand core 15 and is provided with an exhaust hole 115, gas in the cavities of the first sand core 14 and the second sand core 15 is discharged during pouring, sand holes caused by bubbles are avoided, and a plurality of lifting rings 118 are fixed on the top surface of the upper box 11 and are used for lifting the upper box 11 in the later period to perform mold stripping for mold closing. The inside of draft tube 112 is vertically fixed with the exhaust sleeve 113 of a plurality of toper structures downwards, the open-top internal diameter of exhaust sleeve 113 is greater than the bottom internal diameter, the inside air of discharge after the lower port extrusion of metal solution that adds, and the bottom of draft tube 112 is vertically link up and is fixed with equipment barrel 114, the internal thread has been seted up on the terminal surface in the top of runner stick 111, and equipment barrel 114 is connected with the interior screw-thread fit on the runner stick 111, carry out fast assembly and disassemble when making things convenient for the later stage filling. A plurality of stepped brake discs 131 are arranged on the casting 13 along the vertical direction, a brake cylinder 132 vertically penetrates through the plurality of stepped brake discs 131, a groove 151 matched with the plurality of stepped brake discs 131 is vertically and downwards formed in the second sand core 15 of the lower box 12, a convex block matched with the brake cylinder 132 is vertically and downwards arranged on the first sand core 14 of the upper box 11, the first sand core 14 and the second sand core 15 form the shape of the casting 13 when the casting is closed, and the metal solution flows and is cooled to form the casting 13. Equal vertical first screw hole frame 116 and the second screw hole frame 121 of being fixed with on the vertical terminal surface in the outside of last case 11 and nowel 12, and equal vertical screw thread has seted up the screw on the adjacent horizontal terminal surface of first screw hole frame 116 and second screw hole frame 121, and the adjacent screw of first screw hole frame 116 and second screw hole frame 121 passes through positioning bolt 117 location, go up case 11 and nowel 12 and fix a position through first screw hole frame 116 and second screw hole frame 121 and assemble, thereby make things convenient for the lift compound die of later stage location last case 11 and nowel 12, guarantee the accurate nature of compound die.

The supporting component 2 is arranged right below the casting mold component 1 and used for supporting the casting mold component 1 to perform pouring; the supporting component 2 comprises a frame lifting plate 21 and a hole lifting frame 23, wherein the frame lifting plate 21 is horizontally arranged under the casting mould component 1, a connecting screw hole plate 211 is horizontally fixed on the top surface of the frame lifting plate 21, a fixed screw hole plate 122 is horizontally fixed at the bottom of the outer vertical end surface of the lower box 12, a fixing bolt 123 is vertically and downwards arranged in the fixed screw hole plate 122 in a threaded manner, the connecting screw hole plate 211 is in threaded assembly connection with the fixing bolt 123 on the fixed screw hole plate 122, so that the casting mould component 1 and the supporting component 2 are assembled, the stability is kept, the hole lifting frame 23 is arranged under the frame lifting plate 21, a plurality of guide rods 22 are vertically and downwards fixed on the bottom surface of the frame lifting plate 21, jacks are vertically and downwards arranged on the top surface of the hole lifting frame 23, the guide rods 22 are vertically and downwards inserted into the jacks of the hole lifting frame 23 in a sliding manner, a plurality of lifting springs 25 are vertically fixed between the frame lifting frame plate 21 and the hole lifting frame 23, and a vibration motor 24 is horizontally fixed on the bottom surface of the frame lifting plate 21, when in use, the vibration motor 24 is started to drive the frame lifting plate 21 to slide up and down on the hole lifting frame 23, so that later-stage demoulding and rapid flowing of molten metal in a flow channel are accelerated

The material lifting component 3 is arranged on one side of the supporting component 2 and used for lifting the upper box 11 and the lower box 12 for closed pouring, the material lifting component 3 comprises a lifting frame 31, a sliding frame 32 and a lifting screw hole plate 33, wherein the lifting frame 31 is horizontally arranged, one end of the lifting frame 31 is fixed at one end of a lifting frame plate 21, the sliding frame 32 is vertically fixed on the top surface of the lifting frame 31, the sliding frame 32 comprises two rotating hole plates horizontally arranged along the vertical direction, a plurality of lifting guide rods are vertically fixed between the two rotating hole plates, the lifting screw hole plate 33 is horizontally arranged between the sliding frames 32, a lifting screw 34 is vertically and rotatably connected in the sliding frame 32 through a bearing, two ends of the lifting screw 34 are rotatably connected on the rotating hole plates at the upper end and the lower end of the sliding frame 32 through bearings, a lifting motor 35 is vertically fixed on the rotating hole plates, and an output end is connected with one end of the lifting screw 34 and used for driving the lifting screw 34 to rotate, the lifting screw 34 is vertically threaded through the lifting screw hole plate 33, a screw hole with a thread matching the lifting screw 34 is vertically threaded through the lifting screw hole plate 33, a hanging assembly 36 is horizontally arranged on the lifting screw hole plate 33, the hanging assembly 36 comprises a transverse plate 361, a rotary plate 363 and a sliding sleeve plate 365, wherein the transverse plate 361 is horizontally fixed on the lifting screw hole plate 33, the transverse plate 361 is horizontally provided with the rotary plate 363, the rotary plate 363 is vertically fixed with a rotary drum 362, the rotary drum 362 is rotatably connected with the rotary plate 363 through a bearing, a rotary rod is vertically fixed on the bottom surface of the rotary plate 363 downwards and is inserted and fixed in an inner ring of the bearing, two translation rods 364 are horizontally fixed on the top surface of the rotary plate 363, a sliding sleeve plate 365 is inserted and connected between the two translation rods 364 in a sliding sleeve manner, sliding sleeves are horizontally fixed on two sides of the sliding sleeve plate 365, a hanging rope is vertically fixed on the bottom surface of the sliding sleeve plate 365 downwards, and the bottom end of a lifting rope on the sliding sleeve plate 365 is fixed with a lifting hook 366, the top surface of the rotary table 363 is horizontally fixed with a horizontal pushing cylinder 367, the output end of the horizontal pushing cylinder 367 is connected to the sliding sleeve plate 365, and the horizontal pushing cylinder 367 horizontally pushes the sliding sleeve plate 365 to hang the upper box 11 for die assembly and demoulding.

Example 2:

the device provided by the embodiment of the present invention has the same implementation principle and technical effect as those of the embodiment 1, and for the sake of brief description, reference may be made to the corresponding contents in the embodiment 1 without reference to the embodiment.

And 8: putting a certain amount of scrap steel into an intermediate frequency electric furnace to be melted into molten steel, putting steel ingots, pig iron and foundry returns when the temperature in the intermediate frequency electric furnace rises to 1040 ℃, then discharging slag, adding ferromanganese and ferrosilicon alloy after discharging slag, tapping when the temperature in the intermediate frequency electric furnace rises to 1380 ℃, at the moment, pouring a certain amount of copper and ferromolybdenum together with the molten iron, beginning to adopt ultrasonic treatment for 3 minutes in the 5 th minute of pouring, taking out a braking piece casting after pouring for 15 minutes, wherein the weight percentages of all chemical components of the braking piece casting meet the following requirements: 2.3 percent of carbon, 0.14 percent of manganese, 0.05 percent of vanadium, 1 percent of silicon, 0.02 percent of tungsten, 0.435 percent of nickel, 0.25 percent of chromium, 0.35 percent of copper, 0.11 percent of molybdenum, less than or equal to 0.0022 percent of phosphorus, less than or equal to 0.0033 percent of sulfur and the balance of iron.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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

1. A high-speed rail transit braking part casting mold structure is characterized in that: the brake block casting device comprises a casting mold component (1) for casting and molding a brake block of the high-speed rail transit, a supporting component (2) and a material lifting component (3);

the casting mold assembly (1) comprises an upper box (11) and a lower box (12), wherein the upper box (11) and the lower box (12) are respectively filled with a first sand core (14) and a second sand core (15), and a casting (13) is cast and molded in the first sand core (14) and the second sand core (15);

the supporting component (2) is arranged right below the casting mold component (1) and is used for supporting the casting mold component (1) to carry out pouring;

the material lifting assembly (3) is arranged on one side of the supporting assembly (2) and used for lifting the upper box (11) and the lower box (12) to carry out closed pouring.

2. The high-speed rail transit brake casting mold structure as claimed in claim 1, wherein a gate rod (111) is inserted into the top surface of the upper box (11) vertically and downwards through the internal cavity of the first sand core (14), a guide cylinder (112) is assembled at the top end of the gate rod (111), an exhaust hole (115) is formed in the cavity vertically and downwards through the first sand core (14) and the second sand core (15) on the top surface of the upper box (11), and a plurality of lifting rings (118) are fixed on the top surface of the upper box (11).

3. The casting mold structure of the brake component for the high-speed rail transit as claimed in claim 2, wherein a plurality of conical exhaust sleeves (113) are vertically fixed downwards inside the guide cylinder (112), an assembling screw cylinder (114) is vertically fixed through the bottom end of the guide cylinder (112), an internal thread is formed on an inner end face of the top of the gate rod (111), and the assembling screw cylinder (114) is in fit connection with the internal thread on the gate rod (111).

4. The casting mold structure of the brake for the high-speed rail transit as claimed in claim 2, wherein a plurality of stepped brake discs (131) are vertically arranged on the casting (13), a brake cylinder (132) vertically penetrates through the plurality of stepped brake discs (131), a groove (151) matched with the plurality of stepped brake discs (131) is vertically formed downwards in the second sand core (15) of the lower box (12), and a projection matched with the brake cylinder (132) is vertically arranged downwards in the first sand core (14) of the upper box (11).

5. The brake casting mold structure for high-speed rail transit as claimed in claim 1, wherein a first screw hole frame (116) and a second screw hole frame (121) are vertically fixed on outer vertical end faces of the upper box (11) and the lower box (12), screw holes are vertically threaded on adjacent horizontal end faces of the first screw hole frame (116) and the second screw hole frame (121), adjacent screw holes of the first screw hole frame (116) and the second screw hole frame (121) are located through locating bolts (117), a fixed screw hole plate (122) is horizontally fixed at the bottom of the outer vertical end face of the lower box (12), and a fixing bolt (123) is vertically installed in the fixed screw hole plate (122) in a downward thread manner.

6. The casting mold structure of the braking member for the high-speed rail transit as claimed in claim 5, wherein the supporting component (2) comprises a frame lifting plate (21) and a hole lifting frame (23), wherein the frame lifting plate (21) is horizontally arranged right below the casting mold component (1), a connecting screw hole plate (211) is horizontally fixed on the top surface of the frame lifting plate (21), the connecting screw hole plate (211) is in threaded assembly with a fixing bolt (123) on the fixing screw hole plate (122), the hole lifting frame (23) is arranged right below the frame lifting plate (21), a plurality of guide rods (22) are vertically and downwardly fixed on the bottom surface of the frame lifting plate (21), insertion holes are vertically and downwardly formed on the top surface of the hole lifting frame (23), the guide rods (22) are vertically and slidably inserted into the insertion holes of the hole lifting frame (23), and a plurality of vibrating springs (25) are vertically fixed between the frame lifting plate (21) and the hole lifting frame (23), and a vibration motor (24) is horizontally fixed on the bottom surface of the frame lifting plate (21).

7. The casting mold structure of the braking member in the high-speed rail transit as claimed in claim 6, wherein the lifting assembly (3) comprises a lifting frame (31), carriages (32) and lifting screw plates (33), wherein the lifting frame (31) is horizontally arranged, one end of the lifting frame (31) is fixed at one end of each lifting frame plate (21), the carriages (32) are vertically fixed on the top surfaces of the lifting frames (31), the lifting screw plates (33) are horizontally arranged between the carriages (32), lifting screws (34) are vertically and rotatably connected in the carriages (32) through bearings, and the vertical threads of the lifting screws (34) penetrate through the lifting screw plates (33).

8. The casting mold structure of the braking members for the high-speed rail transit as claimed in claim 7, wherein a hanging assembly (36) is horizontally arranged on the lifting screw hole plate (33), the hanging assembly (36) comprises a transverse plate (361), a rotary plate (363) and a sliding sleeve plate (365), the transverse plate (361) is horizontally fixed on the lifting screw hole plate (33), the rotary plate (361) is horizontally provided with the rotary plate (363), the rotary plate (363) is vertically fixed with the rotary drum (362), the rotary drum (362) is rotatably connected with the rotary plate (363) through a bearing, the top surface of the rotary plate (363) is horizontally fixed with two translation rods (364), and the sliding sleeve plate (365) is slidably sleeved and inserted between the two translation rods (364).

9. The casting mold structure of the brake of the high-speed rail transit as claimed in claim 8, wherein a lifting rope is vertically fixed downwards on the bottom surface of the sliding sleeve plate (365), a lifting hook (366) is fixed at the bottom end of the lifting rope on the sliding sleeve plate (365), a horizontal pushing cylinder (367) is horizontally fixed on the top surface of the rotating disc (363), and the output end of the horizontal pushing cylinder (367) is connected to the sliding sleeve plate (365).

10. A manufacturing process of a brake of high-speed rail transit comprises the following steps:

and 2, step: manufacturing a second sand core: placing a gate rod in a mold for manufacturing the second sand core, then placing sand, lifting the second sand core out of the mold of the second sand core through a lifting hook in the material lifting assembly, coating the outer side surface of the second sand core matched with the lower box for more than three times, and coating the inner surface of the second sand core for more than three times; the coating is added for at least three times, so that sand inclusion of the casting can be avoided;