CN111570691B

CN111570691B - Forging mechanism for continuously forging and pressing switch rail and preparation process of forged and pressed switch rail

Info

Publication number: CN111570691B
Application number: CN202010402605.9A
Authority: CN
Inventors: 田继新
Original assignee: Anhui Zhongzhi Rail Transportation Equipment Manufacturing Co ltd
Current assignee: Anhui Zhongzhi Rail Transportation Equipment Manufacturing Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-08-13
Anticipated expiration: 2040-05-13
Also published as: CN111570691A

Abstract

The invention discloses a forging mechanism for continuously forging and pressing switch rails and a preparation process of the forged and pressed switch rails, which comprises the following steps: the invention also discloses a preparation process of the forged switch rail, which comprises the following steps: s1: heat treatment; s2: forging; s3: shaping; s4: unloading; s5: cooling; s6: straightening; s7: and (6) polishing. The forging die can forge V-shaped, bent, linear forging materials with one end bent and the other end straight, and has a wide application range.

Description

Forging mechanism for continuously forging and pressing switch rail and preparation process of forged and pressed switch rail

Technical Field

The invention relates to the technical field of forging equipment, in particular to a forging mechanism for continuously forging and pressing switch rails and a preparation process for forging and pressing the switch rails.

Background

Because the austenite transformation temperature of steel is about 960 ℃, and the austenite has softer characteristics, the steel is easy to deform. Direct forging without heating can result in lattice distortion, internal stress, and even cracking of the material. After high-temperature forging in an austenite state, crystal lattices can be recombined, and the generation of internal stress is reduced.

Forging can be divided into hot forging, warm forging and cold forging according to forging temperature, the temperature is kept above 900 ℃ during hot forging, the forging is easy to form during hot forging, internal stress is reduced, and the quality of the forging is relatively high.

The existing forging equipment is often arranged on one side of a heating furnace, the material is conveyed to the forging equipment for forging after being heated, but a longer distance still exists between the forging equipment and the heating furnace, the existing forging equipment often utilizes forging and pressing machinery to apply pressure to a metal blank, so that a forge piece generates plastic deformation to obtain a material with certain mechanical property, certain shape and size, usually, impact hammers capable of being beaten around are arranged, and the forge piece is formed after being beaten for multiple times, and the forging mode is as follows:

1. the temperature of the forge piece is cooled quickly, the hot forging is not easy to keep, the internal stress of the forge piece is increased during forging, and the quality of the forge piece is reduced;

2. the existing forging equipment carries out shaping after forging a forging material, on one hand, the cost is increased, on the other hand, the forging material is not easy to shape due to the temperature reduction, the cold forming easily causes larger internal stress in the forging material, the strength and the corresponding performance of the forging material are reduced, the bending of the forging piece needs to be carried out subsequently, and the corresponding manufacturing cost and the manufacturing process are increased;

3. the beating times are usually more than thousands of times through the mode of percussion hammer beating, and the beating times are many, and equipment loss is big, and the contact surface is little, and forging material surface atress is inhomogeneous, and beats comparatively consuming time, reduces the forged efficiency of forging material.

Therefore, the forging mechanism for continuously forging the switch rail and the preparation process for forging the switch rail are provided to solve the problems.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a forging mechanism for continuously forging and pressing a point rail and a manufacturing process for the forging and pressing point rail, wherein a forging and pressing wheel for forging the point rail to be forged is arranged, the traditional mode of beating and forging the point rail to be forged by using an impact hammer is replaced, the forging and pressing wheel rotates for one circle to finish forging the point rail to be forged at the station, the forging and pressing efficiency is high, the point rail to be forged is continuously extruded between a butt-joint rail and a flange on the forging and pressing wheel, the rapid forming is easy, the forging time is reduced, the temperature reduction of the point rail to be forged and pressed in the forging process is correspondingly reduced, the temperature is kept above 800 ℃ when the point rail to be forged and pressed is forged, and the quality of forgings is improved.

In order to achieve the above object, the present invention provides a forging mechanism for continuously forging a tongue, comprising:

the preheating rail is used for accommodating the switch rail to be forged, a heating box and a heat generating box capable of self-heating and providing heat for the heating box are arranged at the bottom of the preheating rail, and the heat in the heating box is transferred to the preheating rail through the heat and heats the switch rail to be forged in the preheating rail;

the forging wheel is used for forging the switch rail to be forged, the forging wheel is circular, the outer ring of the forging wheel is provided with a flange with the diameter gradually increased, the forging wheel can rotate and continuously extrude the switch rail to be forged after being heated by the preheating rail through the flange in the rotating process so as to gradually forge the switch rail to be forged into a forged material;

the V-shaped part and the bent part are arranged on the platform on one side of the forging wheel and can move in the vertical direction relative to the movement of the switch rail to be forged, and after translation, the forged material can enter the V-shaped part or the bent part;

the V-shaped part and the bending part can change and shape the bending angle of the forging material, the V-shaped part and the bending part are a fixed part and a movable part, the movable part can rotate along the surface of the platform relative to the fixed part, and when the movable part rotates, the included angle between the movable part and the fixed part is changed, so that the bending angle of the forging material is changed.

According to the scheme, the coal box with the cover and used for storing the pulverized coal is arranged below one side of the platform, the U-shaped pipelines which enable the pulverized coal to be uniformly distributed when the pulverized coal is output from the coal box are arranged inside the coal box, multiple groups of round holes which are communicated with the inside and the outside are formed in the U-shaped pipelines, one end of each U-shaped pipeline is communicated with a pulverized coal discharge pipe used for conveying the pulverized coal, the other end of each U-shaped pipeline is communicated with a wind power inlet pipe used for inputting wind power into the coal box, and a fan used for providing wind power is arranged between each wind power inlet pipe and each U-shaped pipeline.

As a further optimization of the scheme, the upper part of the heat production box is provided with a combustion cavity which is used for receiving pulverized coal output by the coal box and burning the pulverized coal, the combustion cavity is communicated with the heating box which is integrally arranged at the lower part of the preheating rail, one end of the heating box is opened, the lower part of the heat production box is provided with a cleaning cavity which is used for discharging coal cinder generated after the pulverized coal is burnt, and one end of the wind power inlet pipe extends into the cleaning cavity from the side surface of the heat production box and extends out from the opening at the front end of the cleaning cavity.

As a further optimization of the above scheme, one side of the heat generation box is integrally provided with a uniform box communicated with the combustion chamber, one side of the uniform box is provided with a pipe dividing group communicated with the pulverized coal discharge pipe, and the uniform box is internally provided with a blocking part for enabling pulverized coal input in the pulverized coal discharge pipe to be uniformly distributed.

As a further optimization of the above scheme, one side of the preheating rail is integrally provided with a heat insulation rail for blocking heat transfer on the preheating rail, one side of the heat insulation rail is provided with a butt rail for connecting the V-shaped portion and the bending portion, and the surfaces of the preheating rail, the heat insulation rail, the butt rail, the V-shaped portion and the bending portion are provided with feeding grooves for allowing the switch rails to be forged and pressed to pass through.

As a further optimization of the above scheme, one end of the fixing portion is provided with a clamping sleeve which can be stretched and clamped into the outside of the butt joint rail, and when the clamping sleeve is clamped into the outside of the butt joint rail, the fixing portion is in butt joint with the butt joint rail.

As a further optimization of the scheme, a guide wheel which can allow the forging material to enter the movable part from the fixed part is arranged between the fixed part and the movable part, a concave structure which is nested inside and outside and is in concave butt joint is fixedly arranged at the butt joint of the fixed part and the movable part, the concave structures nested inside and outside are movably hinged, the movable part can rotate along the surface of the platform relative to the fixed part, and the guide wheel is rotatably arranged in the concave structure.

In a further optimization of the scheme, the upper ends of the fixed part and the movable part are respectively provided with a positioning part capable of vertically lifting, when the positioning parts move upwards, the forging material can be taken out of the V-shaped part and the bent part, and when the positioning parts move downwards and are attached to the surfaces of the V-shaped part and the bent part, the forging material is limited in the V-shaped part and the bent part.

As a further optimization of the above scheme, one end of the fixed part is provided with an observation ruler extending to the bottom of the movable part, and the observation ruler is provided with scales used for observing the angle change value when the movable part rotates relative to the fixed part.

The invention also discloses a preparation process of the forged switch rail, wherein the forged switch rail is processed by using the forging mechanism for continuously forging the switch rail, and the preparation process comprises the following steps:

s1: heat treatment; placing the switch rail to be forged into a feeding groove in the preheating rail, starting a fan, sucking air from the end part of a wind power inlet pipe into a U-shaped pipeline in a heat production box from an opening at the front by the fan, sucking pulverized coal in the heat production box into the U-shaped pipeline through a round hole in the U-shaped pipeline by wind power, dispersing the pulverized coal into a branch pipe group from a pulverized coal discharge pipe through the U-shaped pipeline, uniformly spraying the pulverized coal into a combustion cavity in the heat production box by a uniform box for ignition combustion, spreading a flame in the combustion process into a heating box, heating the preheating rail, transferring heat to the switch rail to be forged by the heat after the preheating rail is heated, and carrying out heat treatment on the switch rail to be forged in advance to ensure that the temperature of the switch rail to be forged is more than 900 ℃;

s2: forging; pushing the switch rail to be forged in a feeding groove on the preheated rail through a push plate, enabling the switch rail to be forged to enter between a forging wheel and a butt rail, wherein the forging wheel is connected with a transmission mechanism and drives the forging wheel to rotate;

s3: shaping, namely, the V-shaped part or the bending part is connected into a port of the butt rail by translating the V-shaped part and the bending part on the platform;

when the butt joint rail is connected with the V-shaped part, the clamping sleeve at the end part of the V-shaped part extends out of the butt joint rail and is clamped outside the butt joint rail to complete butt joint of the V-shaped part and the butt joint rail, at the moment, the point rail to be forged is continuously pushed by the push plate to move in the feeding groove, the point rail to be forged butts against a forging material to enter the feeding groove in the V-shaped part, and when the forging material enters the feeding groove in the V-shaped part, on one hand, when the point rail to be forged is continuously forged by the forging wheel, the forging material cannot be subjected to surface deformation under the action of internal stress, on the other hand, the forging material can be bent into V-shaped forging materials with different angles, and the purpose of producing forging materials with different specifications is achieved;

when the butt joint rail is connected with the bending part, the clamping sleeve at the end part of the bending part extends out of and is clamped outside the butt joint rail to complete butt joint of the bending part and the butt joint rail, at the moment, the switch rail to be forged is continuously pushed to move in the feeding groove through the push plate, the switch rail to be forged butts against the forging material to enter the feeding groove in the bending part, when the forging material enters the feeding groove, on one hand, when the switch rail to be forged is continuously forged by the forging wheel, the forging material is prevented from being subjected to surface deformation under the action of internal stress, on the other hand, the forging material can be bent to form bent forging materials with different angles, and the purpose of producing the forging materials with different specifications is achieved;

when the V-shaped part and the bending part are positioned outside the butt joint rail, directly sending out the forging material moved out of the butt joint rail to form a linear forging material;

when the movable part of the bending part is butted with the fixed part of the V-shaped part, a forging material with one end bent and the other end straight can be formed;

s4: unloading; moving the positioning parts which can vertically lift the upper ends of the fixed part and the movable part upwards, exposing the forging material above the V-shaped part or the bent part, and cutting and separating the forging material at one end of the fixed part far away from the movable part by using an external cutting device, wherein at the moment, the forging material can be taken out of the V-shaped part or the bent part;

if the forging material is directly sent out from the butt joint rail, the forging material exposed outside the butt joint rail is directly cut to obtain a linear forging material;

s5: cooling; the forged material taken out in the S4 is cooled naturally after being primarily cooled by water until the temperature of the forged material is reduced to the room temperature;

s6: straightening; feeding the straight forged material cooled in the step S5 into a straightening machine for straightening;

s7: polishing; and (3) surface polishing is carried out on the V-shaped and bent forged materials cooled in the step (S5) to finally form V-shaped and bent forged materials, surface polishing is carried out on the straightened linear forged materials straightened in the step (S6) to finally form V-shaped, bent and linear forged materials, and the V-shaped, bent, linear forged materials with one end bent and the other end straight are packaged and stored for use.

The forging mechanism for continuously forging and pressing the switch rail and the preparation process for forging and pressing the switch rail have the following beneficial effects:

1. the forging mechanism for continuously forging and pressing the switch rails and the preparation process for the forging and pressing switch rails are provided with the preheating rails for accommodating the switch rails to be forged, the bottom of each preheating rail is provided with the heating box and the heat generating box capable of self-heating and providing heat for the heating box, the heat in the heating box is transferred to the preheating rails through the heat and heats the switch rails to be forged in the preheating rails, the switch rails to be forged are sent to the bottom of the forging and pressing wheel for forging after being heated, the temperature of the switch rails to be forged and pressed in the forging and pressing process can be kept above 800 ℃ for hot forging, the internal stress of a forging piece is reduced during forging, and the quality of the forging piece is improved;

2. the invention relates to a forging mechanism for continuously forging and pressing a point rail and a preparation process of the forging and pressing point rail, which are provided with a forging and pressing wheel for forging the point rail to be forged, wherein the forging and pressing wheel is circular, the outer ring of the forging and pressing wheel is provided with a flange with gradually enlarged diameter, the forging and pressing wheel can rotate and continuously extrude the point rail to be forged after being heated by a preheated rail in the rotating process through the flange so as to gradually forge the point rail to be forged into a forging material, the traditional mode of repeatedly hammering and forging the point rail to be forged by using an impact hammer is replaced, the point rail to be forged at the station is forged by rotating the wheel for one circle, the forging and pressing efficiency is high, the stressed area of the point rail to be forged is large in the flange extruding mode, the stress is uniform, the point rail to be forged is continuously extruded and molded, the equipment loss is small, the forging time is shortened, the temperature reduction of the point rail to be forged in the forging process is correspondingly reduced, and the temperature of the point rail to be forged is kept above 800 ℃, the quality of the forged piece is improved;

3. the invention relates to a forging mechanism for continuously forging and pressing a switch rail and a preparation process of the forging and pressing switch rail, which are provided with a V-shaped part and a bent part for receiving a forging material, wherein the V-shaped part and the bent part are arranged on a platform at one side of a forging and pressing wheel, the V-shaped part and the bent part can move relative to the vertical direction of the movement of the switch rail to be forged, after translation, the forging material can enter the V-shaped part or the bent part, the V-shaped part and the bent part can change and shape the bending angle of the forging material, the V-shaped part and the bent part are a fixed part and a movable part, the movable part can rotate along the surface of the platform relative to the fixed part, when the movable part rotates, the included angle between the movable part and the fixed part is changed, so that the bending angle of the forging material is changed, the forging and the forging mechanism is suitable for forging the switch rail and the like, the practicability is strong, and the mode of correspondingly bending and shaping after forging the switch rail in the traditional technology is replaced, on one hand, the cost is reduced, on the other hand, the temperature of the forging material is kept high, the forging material is easy to shape, the hot forming is not easy to cause large internal stress in the forging material, and the strength and the corresponding performance of the forging material are improved.

There have been disclosed in detail certain embodiments of the invention with reference to the following description and drawings, and it is to be understood that the embodiments of the invention are not limited thereby, but are intended to cover within the spirit and scope of the appended claims, many changes, modifications, and equivalents.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the butt-joint rail structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the heat-producing tank of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4 in accordance with the present invention;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 4 in accordance with the present invention;

FIG. 7 is a cross-sectional view taken at D-D of FIG. 4 in accordance with the present invention;

FIG. 8 is a cross-sectional view of the V-shaped portion of the present invention;

FIG. 9 is a schematic view of the internal structure of the coal bunker of the present invention;

FIG. 10 is a schematic view of the heating chamber of the present invention;

FIG. 11 is a bottom view of the platform of the present invention;

FIG. 12 is a side view of the present invention;

FIG. 13 is a cross-sectional view taken at C-C of FIG. 12 in accordance with the present invention;

FIG. 14 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

fig. 15 is an enlarged view of the structure at B in fig. 9 according to the present invention.

In the figure: the device comprises a platform 1, a V-shaped part 2, a bending part 3, a positioning part 4, a fixing part 5, a concave clamping plate 6, a clamping sleeve 7, a forging pressing wheel 8, a preheating rail 9, a coal box 10, a pulverized coal discharge pipe 11, a wind power inlet pipe 12, a heat insulation rail 13, a butt joint rail 14, a limiting block 15, a flange 16, a flange 17, a feeding groove 18, a forging sharp rail 19, a push plate 20, a heating box 21, a heat production box 22, a cleaning cavity 23, a pipe dividing group 24, a uniform box 25, a blocking part 26, fan blades 27, a fan 28, a guide wheel 29 and an observation ruler 30.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.

It should be noted that when an element is referred to as being "disposed on," or provided with "another element, it can be directly on the other element or intervening elements may also be present, when an element is referred to as being" connected, "or coupled to another element, it can be directly on the other element or intervening elements may be present, and" fixedly coupled "means that the element is fixedly coupled in many ways, which are not intended to be within the scope of the present disclosure, the terms" vertical, "" horizontal, "" left, "" right, "and the like are used herein for illustrative purposes only and are not intended to be a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items;

referring to the attached drawings 1-15 in the specification, the invention provides a technical scheme: a swaging mechanism to continuously swage switch rails, comprising:

the preheating rail 9 is used for accommodating the switch rail 19 to be forged, the bottom of the preheating rail 9 is provided with a heating box 21 and a heat generating box 22 which can self-heat and provide heat for the heating box 21, and the heat in the heating box 21 is transferred to the preheating rail 9 through the heat and heats the switch rail 19 to be forged in the preheating rail 9;

the forging wheel 8 is used for forging the switch rail 19 to be forged, the forging wheel 8 is circular, a connecting sleeve which can be connected with an external transmission mechanism is arranged in the middle of the forging wheel 8, a motor and other transmission parts which have enough power to support the forging wheel 8 to rotate and forge the switch rail 19 to be forged can be connected on the connecting sleeve, a flange 17 with gradually increased diameter is arranged on the outer ring of the forging wheel 8, the forging wheel 8 can rotate and continuously extrude the switch rail 19 to be forged which is heated by the preheating rail 9 through the flange 17 in the rotating process so as to gradually forge the switch rail into a forging material, limiting blocks 15 which are fixedly arranged on the butt-jointed rail 14 are arranged on two sides of the position of the switch rail 19 to be forged which is about to enter the bottom of the forging wheel 8, the limiting blocks 15 are formed to be matched with and kept attached to the bottom of the forging wheel 8 and used for limiting the phenomenon that the unprocessed part of the switch rail 19 to be forged is seriously deformed when the switch rail 19 is continuously extruded by the forging wheel, the switch rail 19 to be forged and pressed can smoothly enter the bottom of the forging pressing wheel 8;

the V-shaped part 2 and the bent part 3 are used for receiving a forging material, the V-shaped part 2 and the bent part 3 are arranged on the platform 1 on one side of the forging wheel 8, the V-shaped part 2 and the bent part 3 can move in the vertical direction relative to the movement of the switch rail 19 to be forged, and after translation, the forging material can enter the V-shaped part 2 or the bent part 3;

the V-shaped part 2 and the bending part 3 can change and shape the bending angle of the forging material, the V-shaped part 2 and the bending part 3 are respectively a fixed part and a movable part, the movable part can rotate along the surface of the platform 1 relative to the fixed part, and when the movable part rotates, the included angle between the movable part and the fixed part is changed, so that the bending angle of the forging material is changed.

V font portion

2, 3 lower surfaces of flexion all are equipped with the gyro wheel that can remove on 1 surface of platform, use when making things convenient for

V font portion

2, 3 translations of flexion, and wherein, the coal bunker 10 should set up in the position of keeping away from preheating rail 9, heat production case 22, ensures the security of using, and platform 1 bottom should have the supporting leg to supply to support the use.

In this embodiment, a coal box 10 with an open cover and used for storing coal powder is arranged below one side of a platform 1, a U-shaped pipeline which enables coal powder to be uniformly distributed when the coal powder is output from the coal box 10 is arranged inside the coal box 10, a plurality of groups of round holes which are communicated with the inside and the outside are arranged on the U-shaped pipeline, one end of the U-shaped pipeline is communicated with a coal powder discharge pipe 11 for conveying coal powder, the other end of the U-shaped pipeline is communicated with a wind power inlet pipe 12 for inputting wind power into the coal box 10, a fan 28 for providing wind power is arranged between the wind power inlet pipe 12 and the U-shaped pipeline, the U-shaped pipeline is uniformly distributed on the upper and lower inner parts of the coal box 10, when wind power discharged from the wind power inlet pipe 12 enters the U-shaped pipeline, the wind power can suck the coal powder in the coal box 10 from the round holes uniformly and discharge the coal powder discharge pipe 11, a fan blade 27 which can, the nut that screw-thread fit connects on L shape pole on flabellum 27 both sides is spacing, and when flabellum 27 rotated for buggy in the U font pipeline is more dispersed, makes the buggy be dispersed form and carries, guarantees when carrying to burning chamber that the burning is even.

It should be noted that, the upper portion of the heat-producing box 22 is provided with a combustion chamber for receiving the pulverized coal output by the coal box 10 and burning the pulverized coal, the combustion chamber is communicated with the heating box 21 integrally arranged at the lower portion of the preheating rail 9, one end of the heating box 21 is open, the lower portion of the heat-producing box 22 is provided with a cleaning chamber 23 for discharging the coal cinder generated after the pulverized coal is burned, the cleaning chamber 23 is separated from the combustion chamber by a filter screen, the filter screen allows the coal cinder generated after the pulverized coal is burned to fall into the cleaning chamber 23, one end of the wind-force inlet pipe 12 extends into the cleaning chamber 23 from the side of the heat-producing box 22 and extends out from the front end opening of the cleaning chamber 23, the front end opening of the cleaning chamber 23 is convenient for periodically cleaning the coal cinder generated after the pulverized coal is burned, the wind-force drives air to enter from the front end opening of the cleaning chamber 23, a part of the air is driven by the wind-force to enter the wind-force inlet pipe 12, the other part of the air enters from the cleaning chamber 23 and enters into the combustion chamber through the filter screen at the upper end of the cleaning chamber 23, the pulverized coal in the combustion cavity can be more fully combusted, and the energy-saving and environment-friendly effects are achieved.

A uniform box 25 communicated with a combustion chamber is integrally arranged on one side of the heat production box 22, a branch pipe group 24 is arranged on one side of the uniform box 25, the branch pipe group 24 is communicated with a pulverized coal discharge pipe 11, the branch pipe group 24 is composed of four groups of pipelines, pulverized coal in the pulverized coal discharge pipe 11 uniformly enters the uniform box 25 and then is uniformly distributed when entering the combustion chamber through the uniform box 25, the pulverized coal is fully combusted, a blocking part 26 for uniformly distributing pulverized coal input in the pulverized coal discharge pipe 11 is arranged in the uniform box 25, the blocking part 26 prevents flames from spreading to the pulverized coal discharge pipe 11, the blocking part 26 is integrally formed by eight groups of radiating plate-shaped structures, the blocking part 26 is rotatably arranged on a rotating shaft, the front end and the rear end of the rotating shaft are respectively movably inserted into the inner walls on the front side and the rear side of the uniform box 25, the blocking part 26 is ensured to normally rotate in the uniform box 25, and the height of the blocking part 26 is less than 1mm-2mm of the vertical linear distance in the uniform box, both sides activity laminating around separation portion 26 is on even case 25's the front and back both sides inner wall, and when the wind-force that gets into by buggy discharge pipe 11 promoted the platelike structure on the separation portion 26, separation portion 26 just can rotate to with the even combustion chamber of going into of buggy, the buggy just can get into the combustion chamber when only carrying through wind-force, guaranteed the separation of combustion chamber and buggy discharge pipe 11, ensure safe in utilizationly.

In this embodiment, a heat insulation rail 13 for blocking heat transfer on the preheating rail 9 is integrally arranged on one side of the preheating rail 9, the heat insulation rail 13 can be made of high temperature resistant and heat insulation parts, and mainly plays a role in blocking heat transfer on the preheating rail 9 to an abutting rail 14, so as to ensure that the temperatures of the abutting rail 14 and a forging wheel 8 are not too high, and the forging wheel 8 is not influenced to continuously extrude and forge a to-be-forged switch rail 19, the heat insulation rail 13 can be made of steel shell, and the inside of the abutting rail is filled with vacuum, so that the heat insulation and heat resistance are good, and the device can be normally used, the abutting rail 14 for connecting a V-shaped part 2 and a bending part 3 is arranged on one side of the heat insulation rail 13, the surfaces of the preheating rail 9, the heat insulation rail 13, the abutting rail 14, the V-shaped part 2 and the bending part 3 are all provided with feeding grooves 18 for allowing the to pass through the to-be forged switch rail 19, and the feeding grooves 18 are of inverted concave structures, the switch rail 19 to be forged is rectangular when being arranged on the preheating rail 9 and the heat insulation rail 13, after the switch rail 19 to be forged is forged by the forging roller 8 in the feeding groove 18 on the butt-joint rail 14, the lower end of the rectangular switch rail 19 to be forged is extruded into the concave structure of the feeding groove 18, the concave structure is also formed between the flange 16 and the flange 17 on the forging roller 8, the upper end of the rectangular switch rail 19 to be forged is extruded into the concave structure of the forging roller 8, and finally a forged material is formed, so that the forging process is completed.

It should be noted that, one end of the fixing portion is provided with a retractable clamping sleeve 7 which is clamped outside the butt joint rail 14, when the clamping sleeve 7 is clamped outside the butt joint rail 14, the fixing portion is in butt joint with the butt joint rail 14, the clamping sleeve 17 is movably attached to the lower surface of the fixing portion in a concave structure, the clamping sleeve 17 is connected with a pushing mechanism such as an electric push rod or an air cylinder which is enough to support the clamping sleeve 17 to be firmly clamped at the end of the butt joint rail 14, the other end of the pushing mechanism is fixed on the lower end surface of the fixing portion, and the clamping sleeve 17 is retractable, so that the butt joint of the fixing portion and the butt joint rail 14 is facilitated.

A guide wheel 29 for allowing a forging material to enter the movable part from the fixed part is arranged between the fixed part and the movable part, a concave structure which is nested inside and outside and is butted with a notch is fixedly arranged at the butt joint of the fixed part and the movable part, the concave structure which is nested inside and outside is movably hinged between the concave structure which is nested inside and outside to realize that the movable part can rotate along the surface of the platform 1 relative to the fixed part, the guide wheel 29 is rotatably arranged in the concave structure, after the forging material movably passes through the feeding groove 18 in the fixed part, the end part is clamped into the feeding groove 18 of the movable part through the guide wheel 29, the forging material has higher temperature at the moment and can smoothly enter the fixed part and the movable part to be shaped through the fixed part and the movable part, if the V-shaped forging material needs to be forged, the fixed part on the V-shaped part 2 is butted with the butting rail 14, if the bent forging material needs to be forged, the fixing portion on the bent portion 3 is butted against the butting rail 14, and forging of forging materials of different shapes is realized.

The upper ends of the fixed part and the movable part are respectively provided with a positioning part 4 capable of vertically lifting, when the positioning part 4 moves upwards, a forged material can be taken out from the V-shaped part 2 and the bending part 3, when the positioning part 4 moves downwards and is attached to the surface positions of the V-shaped part 2 and the bending part 3, the forged material is limited in the V-shaped part 2 and the bending part 3, the lower surface of the positioning part 4 is provided with a concave structure corresponding to the upper end of the forged material to form matching, the upper part of the positioning part 4 is fixedly welded with a plurality of groups of concave clamping plates 6, the upper end of each concave clamping plate 6 is provided with a lifting mechanism capable of driving each concave clamping plate 6 to vertically lift, an electric push rod and the like can be used for fixing the positioning part 4 by enough pressing force, the upper end of the lifting mechanism is fixedly connected with a connecting plate, the connecting plate is fixed on a top plate by screws, the top plate is arranged above the lifting mechanism, the top plate on the fixed part is fixedly welded with the side surface of the fixed part, the top plate on the movable part is fixedly welded with the side face of the movable part, the lifting mechanism controls the positioning part 4 to lift through the concave-shaped clamping plate 6, and the concave-shaped clamping plate 6 plays a role in dispersing the stress below the lifting mechanism and protects the device.

An observation ruler 30 extending to the bottom of the movable part is arranged at one end of the fixed part, scales used for observing the angle change value of the movable part when the movable part rotates relative to the fixed part are arranged on the observation ruler 30, the fixed part does not move when the movable part rotates and is adjusted, and the angle between the movable part and the fixed part can be visually obtained by observing the change of the scales at the positions, which are covered on the scale of the observation ruler 30, of the movable part, so that the adjustment is convenient, and the movable part can be used for producing forged materials with different bending angles;

in the embodiment, the movable part is rotationally adjusted by the pushing mechanism on the side surface, the pushing mechanism can use a mechanism with enough power and support, such as an air cylinder, and the like, the end part of the pushing mechanism is movably hinged in a groove arranged on the side surface of the movable part on the V-shaped part 2, so that when the pushing mechanism pushes the movable part to rotate, the movable part and the pushing mechanism can rotate relatively without the phenomena of jamming and the like, the other end of the pushing mechanism is movably hinged with an L-shaped plate, the L-shaped plate is arranged on the platform 1 in a sliding manner, lifting components such as an electric push rod and the like which can lift and be clamped in a positioning hole on the surface of the platform 1 are fixedly welded in the L-shaped plate, when the lifting components are clamped in the positioning hole on the surface of the platform 1, the end part of the pushing mechanism is fixed, wherein, the surface of the platform 1 is provided with at least two groups of positioning holes for fixing the pushing mechanism when the V-shaped part 2 and the bending part 3 are translated on the platform 1;

wherein the two groups of movable parts are integrally connected through a connecting rod, the two groups of fixed parts are integrally connected through a connecting column, the two groups of movable parts can be controlled to synchronously rotate and adjust through a pushing mechanism in a groove on the side surface of the movable part on the V-shaped part 2, the two groups of fixed parts can be controlled to synchronously move through a power pushing mechanism arranged on one side of the fixed part on the V-shaped part 2, the equipment cost is reduced, the power pushing mechanism can use an electric push rod, an air cylinder and other mechanisms with enough supporting force, one end of the power pushing mechanism is fixed on the side surface of the fixed part on the V-shaped part 2, the other end of the power pushing mechanism is fixed on a protruding plate on the upper surface of the platform 1, one end of the fixed part on the V-shaped part 2 is provided with a guide rod matched with a guide plate arranged on the upper surface of the platform 1, the guide rod is movably inserted on the guide plate, so that the V-shaped part 2 linearly translates, and a spring is movably sleeved outside the guide rod, two ends of the spring are respectively fixed on the guide plate and the side surface of the fixed part on the V-shaped part 2, and the spring is used for buffering during guiding.

Referring to fig. 6, the end of the feed chute 18 should be provided with an expansion chute which is larger than the feed chute 18, and the width of the expansion chute gradually becomes the same as the width of the feed chute 18 toward the feed chute 18 so that the forging material in the fixed portion smoothly enters the movable portion when it is protruded.

The invention also discloses a preparation process of the forged switch rail, the forged switch rail is processed by using the forging mechanism for continuously forging the switch rail, and the preparation process comprises the following steps:

s1: heat treatment; placing the switch rail 19 to be forged and pressed into a feeding groove 18 in the preheating rail 9, starting a fan 28, sucking air from the end part of a wind power inlet pipe 12 into a U-shaped pipeline in a heat generating box 22 from an opening in front of a feeding groove 23 by the fan 28, sucking coal powder in the heat generating box 22 into the U-shaped pipeline by wind power through a round hole on the U-shaped pipeline, dispersing the coal powder into a branch pipe group 24 from a coal powder discharge pipe 11 through the U-shaped pipeline, uniformly spraying the coal powder into a combustion cavity in the heat generating box 22 by a uniform box 25 for ignition and combustion, spreading flame in the combustion process into a heating box 21, heating the preheating rail 9, transferring heat to the switch rail 19 to be forged and pressed for heat treatment by the heat after the preheating rail 9 is heated, performing heat treatment on the switch rail 19 to be forged and pressed in advance on the switch rail 19 to be forged and pressing, ensuring that the temperature of the switch rail 19 to be forged and pressed is more than 900 ℃, and initially keeping the temperature at more than 1000 ℃ in the forging process, the time for reducing the temperature of the forge piece to be below 800 ℃ is long, and the forge piece is difficult to forge when the temperature of the forge piece is reduced to be below 800 ℃;

s2: forging; pushing the switch rail 19 to be forged in a feeding groove 18 on the preheating rail 9 through a push plate 20, enabling the switch rail 19 to be forged to enter between the forging wheel 8 and the butt rail 14, connecting a transmission mechanism on the forging wheel 8, driving the forging wheel 8 to rotate, extruding the switch rail 19 to be forged, which is pretreated in S1, by a flange 17 with the diameter of the outer ring of the forging wheel 8 gradually becoming larger in the rotating process of the forging wheel 8, gradually extruding the switch rail 19 to be forged into a forged material, finishing forging one area of the switch rail 19 to be forged after the forging wheel 8 rotates for one circle, continuously pushing the switch rail 19 to be forged through the push plate 20, repeating the steps, and integrally forging the switch rail 19 to be forged into the forged material;

s3: shaping, namely, translating the V-shaped part 2 and the bent part 3 on the platform 1, and connecting the V-shaped part 2 or the bent part 3 into a port of the butt rail 14;

when the butt joint rail 14 is connected with the V-shaped part 2, the clamping sleeve 7 at the end part of the V-shaped part 2 extends out of the butt joint rail 14 and is clamped outside the butt joint rail 14 to complete butt joint of the V-shaped part 2 and the butt joint rail 14, at the moment, the push plate 20 continuously pushes the switch rail 19 to be forged and moved in the feeding groove 18, the switch rail 19 to be forged and pressed butts against a forging material to enter the feeding groove 18 inside the V-shaped part 2, and when the forging material enters the feeding groove 18 inside the V-shaped part 2, on one hand, when the switch rail 19 to be forged and pressed is continuously forged and pressed by the forging wheel 8, the forging material cannot be subjected to surface deformation under the action of internal stress, on the other hand, the forging material can be bent into V-shaped forging materials with different angles, and the purpose of producing forging materials with different specifications is achieved;

when the bent part 3 is connected to the butt rail 14, the cutting sleeve 7 at the end part of the bent part 3 extends out of the butt rail 14 and is clamped outside the butt rail 14 to complete butt joint of the bent part 3 and the butt rail 14, at the moment, the point rail 19 to be forged is continuously pushed by the push plate 20 to move in the feeding groove 18, the point rail 19 to be forged butts against a forging material to enter the feeding groove 18 inside the bent part 3, and when the forging material enters the feeding groove 18, on one hand, when the forging wheel 8 continuously forges the point rail 19 to be forged, the forging material cannot be subjected to surface deformation under the action of internal stress, on the other hand, the forging material can be bent to be bent at different angles, and the purpose of producing the forging materials with different specifications is achieved;

when the V-shaped part 2 and the bending part 3 are both positioned outside the butt-joint rail 14, directly sending out the forging material moved out from the butt-joint rail 14 to form a linear forging material;

when the movable part of the bending part 3 is butted with the fixed part of the V-shaped part 2, a forging material with one end bent and the other end straight can be formed; the joint of the fixed part and the movable part is fixedly provided with an inside-outside nested concave structure with a butt joint of notches, the inside-outside nested concave structure is movably hinged, the movably hinged structure comprises a screw rod and two groups of nuts connected to the end part of the screw rod through thread fit, the fixed part and the movable part can be disassembled, and when the fixed part and the movable part are disassembled, the movable part of the bending part 3 can be in butt joint with the fixed part of the V-shaped part 2.

S4: unloading; moving the positioning part 4 which can vertically lift the upper ends of the fixed part and the movable part upwards, exposing the forging material above the V-shaped part 2 or the bending part 3, and cutting and separating the forging material at one end of the fixed part far away from the movable part by using an external cutting device, wherein the forging material can be taken out of the V-shaped part 2 or the bending part 3;

if the forging material is directly sent out from the butt rail 14, the forging material exposed outside the butt rail 14 is directly cut to obtain a linear forging material;

In conclusion, the scheme can forge V-shaped, bent, linear and forged materials with one end bent and the other end straight, has wide application range, is slightly influenced by internal stress, has high quality and is suitable for forging the root end of the switch rail.

It should be understood that the present invention is not limited to the particular embodiments described herein, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. A swaging mechanism to continuously swage switch rails, comprising:

2. A swaging mechanism to continuously swage switch rails according to claim 1, wherein: the utility model discloses a coal box, including platform, coal box, U-shaped pipeline, the one side below of platform is equipped with the coal scuttle that has the uncap and be used for saving the buggy, and the inside of coal scuttle is equipped with the U-shaped pipeline that distributes evenly when making buggy output coal scuttle, is equipped with the multiunit round hole of inside and outside intercommunication on the U-shaped pipeline, and the one end intercommunication of U-shaped pipeline carries the buggy discharge pipe of buggy, and the other end intercommunication is used for the wind-force admission pipe of input wind-force to the coal scuttle inside, is equipped with the fan that provides wind-force between wind-force admission pipe and the U-shaped pipeline.

3. A swaging mechanism to continuously swage switch rails according to claim 2, wherein: the upper portion of producing the heat case is equipped with the burning chamber that is used for receiving the buggy of coal bunker output and makes the buggy burning, burning chamber and the integrative heating cabinet intercommunication that sets up in preheating rail lower part, the one end opening of heating cabinet, the lower part of producing the heat case is equipped with the clearance chamber that is used for excreting the cinder that the buggy burns back and produces, the one end of wind-force admission pipe stretches into the clearance chamber and stretches out from clearance chamber front end opening from the side of producing the heat case.

4. A swaging mechanism to continuously swage switch rails according to claim 3, wherein: one side of the heat production box is integrally provided with an even box communicated with the combustion cavity, one side of the even box is provided with a pipe dividing pipe which is communicated with the pulverized coal discharge pipe, and the even box is internally provided with a blocking part which enables pulverized coal input into the pulverized coal discharge pipe to be uniformly distributed.

5. The swaging mechanism of claim 4 to continuously swage switch rails, wherein: one side of the preheating rail is integrally provided with a heat insulation rail for blocking heat transfer on the preheating rail, one side of the heat insulation rail is provided with a butt joint rail for connecting the V-shaped part and the bending part, and the surfaces of the preheating rail, the heat insulation rail, the butt joint rail, the V-shaped part and the bending part are provided with feeding grooves for allowing the switch rails to be forged and pressed to pass through.

6. The swaging mechanism of claim 5 wherein: one end of the fixing part is provided with a clamping sleeve which can be stretched and clamped into the outer part of the butt joint rail, and when the clamping sleeve is clamped into the outer part of the butt joint rail, the fixing part is in butt joint with the butt joint rail.

7. The swaging mechanism of claim 6 wherein: a guide wheel for enabling a forging material to enter the movable part from the fixed part is arranged between the fixed part and the movable part, a concave structure which is nested inside and outside and is in concave joint is fixedly arranged at the joint of the fixed part and the movable part, the concave structures which are nested inside and outside are movably hinged, the movable part can rotate along the surface of the platform relative to the fixed part, and the guide wheel is rotatably arranged in the concave structure.

8. The swaging mechanism of claim 7 wherein: but the upper end of fixed part and movable part all is equipped with the location portion of vertical lift, and when location portion upwards moved, the forging material can be taken out in V font portion, the bending part, and location portion moves down and when laminating V font portion, bending part surface position, the forging material is restricted in V font portion, bending part.

9. The swaging mechanism of claim 8 to continuously swage switch rails, wherein: one end of the fixed part is provided with an observation ruler extending to the bottom of the movable part, and the observation ruler is provided with scales used for observing the angle change value of the movable part when the movable part rotates relative to the fixed part.

10. A preparation process of a forged switch rail is characterized by comprising the following steps: processing said forged point rail using the forging mechanism for continuously forging point rails as claimed in claim 9, comprising the steps of: