Electric flat car track assembly of pig machine and construction method thereof
阅读说明：本技术 铸铁机电动平车轨道总成及其施工方法 (Electric flat car track assembly of pig machine and construction method thereof ) 是由 韩鸿 李京业 许子铮 郭淑娟 吕彦斌 孙瑞瑞 张守旗 韩亚辉 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种铸铁机电动平车轨道总成,包括平行布置于道床顶部的底层垫板,所述底层垫板上沿其厚度方向贯穿并嵌装焊接固定有若干锚固钉,所述锚固钉的顶部与所述底层垫板的顶面共面,所述锚固钉的底部嵌装固定于道床内；所述底层垫板的顶部平行布置并焊接固定有顶层垫板,所述顶层垫板的顶部设置有钢轨,所述顶层垫板的顶部还设置有对称布置于所述钢轨两侧并与所述钢轨压紧适配的压轨器。该铸铁机电动平车轨道总成的结构强度较高,且其安装使用过程中较为稳定可靠。本发明还公开了一种用于生产上述铸铁机电动平车轨道总成的铸铁机电动平车轨道总成施工方法。(The invention discloses an electric flat car track assembly of an iron casting machine, which comprises a bottom backing plate arranged at the top of a track bed in parallel, wherein a plurality of anchoring nails penetrate through the bottom backing plate along the thickness direction of the bottom backing plate, are embedded, welded and fixed, the tops of the anchoring nails are coplanar with the top surface of the bottom backing plate, and the bottoms of the anchoring nails are embedded and fixed in the track bed; the top of the bottom base plate is arranged in parallel and fixedly welded with a top base plate, the top of the top base plate is provided with steel rails, and the top of the top base plate is further provided with rail pressing devices which are symmetrically arranged on two sides of the steel rails and are in compression fit with the steel rails. The electric flat car track assembly of the pig machine has high structural strength and is stable and reliable in the installation and use processes. The invention also discloses a construction method of the electric flat car track assembly of the iron casting machine for producing the electric flat car track assembly of the iron casting machine.)
1. The electric flat car track assembly of the iron casting machine is characterized by comprising a bottom backing plate arranged at the top of a track bed in parallel, wherein a plurality of anchoring nails penetrate through the bottom backing plate in the thickness direction and are embedded, welded and fixed, the tops of the anchoring nails are coplanar with the top surface of the bottom backing plate, and the bottoms of the anchoring nails are embedded and fixed in the track bed;
the top of the bottom base plate is arranged in parallel and fixedly welded with a top base plate, the top of the top base plate is provided with steel rails, and the top of the top base plate is further provided with rail pressing devices which are symmetrically arranged on two sides of the steel rails and are in compression fit with the steel rails.
2. The pig machine motorized flat car track assembly of claim 1, wherein the projections of the centerlines of the bottom pad, the top pad and the rail in the lengthwise direction on a horizontal plane on which the top surface of the bottom pad lies coincide.
3. The pig machine electric flat car track assembly of claim 2, wherein the width of the bottom tie plate is less than the width of the track bed and the width of the top tie plate is less than the width of the bottom tie plate.
4. The pig machine motorized flat car track assembly of claim 1, wherein the rail press is removably attached to the top shim plate by a bolt and nut assembly.
5. The electric flatcar track assembly for iron casting machine of claim 1, wherein the end of the anchor stud embedded in the track bed has an anti-slip hook.
6. A method of constructing an electric flatcar track assembly for iron casting machines as claimed in claims 1 to 5, characterized in that it comprises the steps of:
arranging a bottom plate, processing welding holes corresponding to the top ends of the anchoring nails one by one on a bottom backing plate according to the distribution form and the top end structure size of the anchoring nails preset in the track bed, wherein the inner diameter of each welding hole is not smaller than the outer diameter of the top end of the corresponding anchoring nail, then arranging the bottom backing plate at the top of the track bed in parallel, and correspondingly inserting the top ends of the anchoring nails into the corresponding welding holes one by one;
assembling the base plate, namely, aligning and welding and fixing the anchoring nails and insertion positions of welding holes, then cutting off the parts of the anchoring nails, which protrude out of the top surface of the bottom backing plate, and polishing the top ends of the anchoring nails to be flat so as to enable the top ends of the anchoring nails to be coplanar with the top surface of the bottom backing plate;
arranging a top plate, arranging a top base plate on the top of a bottom base plate in an aligned parallel manner, and welding and fixing the top base plate and the bottom base plate;
and (4) assembling the steel rails, namely arranging the steel rails at the tops of the top base plates in an aligned mode, and reliably pressing and fixing the steel rails on the top base plates through rail pressing devices.
7. The method of cast iron machine electric flat car track assembly construction of claim 6, said step of bottom plate assembly and said step of top plate arrangement further comprising the steps of:
and (3) grouting the ballast bed, forming an exhaust observation hole on the bottom base plate, then grouting the grouting material from a gap on one side between the ballast bed and the bottom base plate until aggregate of the grouting material overflows from a gap on the other side between the bottom base plate and the ballast bed and the exhaust observation hole, checking whether a cavity part which is not filled with the grouting material exists between the bottom base plate and the ballast bed, and repeating the grouting operation process if the cavity part exists until the gap between the bottom base plate and the ballast bed is filled with the grouting material.
8. The method for constructing an electric flatcar track assembly for iron casting according to claim 7, wherein: the step of arranging the bottom plate further comprises the following steps:
and pouring a ballast bed, presetting a pouring position on the roadbed, then pouring and molding the ballast bed by utilizing concrete along the preset pouring position, and presetting the anchoring nails in the ballast bed before molding the ballast bed so that the anchoring nails and the solidified and molded ballast bed can be integrally molded.
Technical Field
The invention relates to the technical field of steel pipe production and manufacturing processes, in particular to an electric flat car track assembly of an iron casting machine. The invention also relates to a construction method for building the electric flat car track assembly of the pig machine.
Background
The pig casting machine is a device for casting molten iron into iron blocks. The molten iron is cooled once by the chain belt to form iron blocks. The iron blocks fall to the ground after the head of the pig casting machine is demoulded, can be directly transported outwards without cooling, or fall into transportation equipment such as an electric flat car and the like, and then are transported to a spraying field to be sprayed for secondary cooling.
The electric flat carriage of the pig casting machine is railway track transportation equipment, and a track, particularly a track in a spraying field area, of the electric flat carriage generally adopts a plain concrete ballastless track bed in the prior art, namely, a steel rail of the electric flat carriage is directly installed on the track bed, and the steel rail is fixed through a spike and a rail pressing device which are pre-embedded in the track bed.
The spraying field is a secondary cooling area of the product iron block of the pig casting machine. The upper part is provided with a spraying cooling water pipeline, a spray head and other facilities, and the lower part is an electric flat car track. And drainage ditches are longitudinally arranged on two sides of the track bed of the electric flat car and used for discharging cooling water for cooling the iron blocks. After the iron blocks conveyed by the electric flat car enter the spraying field, cooling water is started to be sprayed to the iron blocks in the electric flat car, then the cooling water flows to the spraying field ground through the carriage, and finally the cooling water is discharged through the drainage ditch.
And after the secondary spray cooling of the iron blocks is completed, the electric flat car transports the iron blocks forwards to enter an iron block storage warehouse, and the iron blocks are unloaded. Therefore, the whole running path of the electric flat carriage is generally a head of the pig casting machine, a spray field and an iron block storage warehouse.
However, although the existing equipment can meet the basic requirements of the operation of the pig machine and the production and processing of iron blocks, the rail of the electric flat car in the spraying field area is in a high-temperature water scouring environment, and the concrete track bed is directly rolled after the steel rail bears the load, so that the track bed is pulverized, pulverized particles are rapidly lost under the scouring action of high-temperature water, the track bed is damaged, the steel rail is deformed, the rail is finally failed, and the stable operation of the relevant pig machine and the continuous production and processing of the iron blocks are adversely affected.
Therefore, how to improve the structural strength of the rail assembly of the electric flat car of the iron casting machine so as to ensure that the rail assembly is more stable and reliable when being installed and used is an important technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
The invention aims to provide an electric flat car track assembly of an iron casting machine, which has higher structural strength and is more stable and reliable in the installation and use process. The invention further aims to provide a construction method of the electric flat car track assembly of the iron casting machine.
In order to solve the technical problem, the invention provides an electric flat car track assembly of a pig machine, which comprises a bottom backing plate arranged at the top of a track bed in parallel, wherein a plurality of anchoring nails penetrate, are embedded, welded and fixed on the bottom backing plate along the thickness direction of the bottom backing plate, the tops of the anchoring nails are coplanar with the top surface of the bottom backing plate, and the bottoms of the anchoring nails are embedded and fixed in the track bed;
the top of the bottom base plate is arranged in parallel and fixedly welded with a top base plate, the top of the top base plate is provided with steel rails, and the top of the top base plate is further provided with rail pressing devices which are symmetrically arranged on two sides of the steel rails and are in compression fit with the steel rails.
Preferably, projections of center lines of the bottom underlay sheet, the top underlay sheet and the steel rails in the length direction on a horizontal plane on which the top surface of the bottom underlay sheet is located coincide.
Preferably, the width of the underlay sheet is less than the width of the track bed and the width of the top underlay sheet is less than the width of the underlay sheet.
Preferably, the rail press is detachably connected to the top tie plate through a bolt and nut assembly.
Preferably, the end part of the anchoring nail embedded in the track bed is provided with an anti-drop hook.
The invention also provides a construction method of the electric flat car track assembly of the iron casting machine, which is used for producing the electric flat car track assembly of the iron casting machine and comprises the following steps:
arranging a bottom plate, processing welding holes corresponding to the top ends of the anchoring nails one by one on a bottom backing plate according to the distribution form and the top end structure size of the anchoring nails preset in the track bed, wherein the inner diameter of each welding hole is not smaller than the outer diameter of the top end of the corresponding anchoring nail, then arranging the bottom backing plate at the top of the track bed in parallel, and correspondingly inserting the top ends of the anchoring nails into the corresponding welding holes one by one;
assembling the base plate, namely, aligning and welding and fixing the anchoring nails and insertion positions of welding holes, then cutting off the parts of the anchoring nails, which protrude out of the top surface of the bottom backing plate, and polishing the top ends of the anchoring nails to be flat so as to enable the top ends of the anchoring nails to be coplanar with the top surface of the bottom backing plate;
arranging a top plate, arranging a top base plate on the top of a bottom base plate in an aligned parallel manner, and welding and fixing the top base plate and the bottom base plate;
and (4) assembling the steel rails, namely arranging the steel rails at the tops of the top base plates in an aligned mode, and reliably pressing and fixing the steel rails on the top base plates through rail pressing devices.
Preferably, the step bottom plate assembly and the step top plate arrangement further comprise the steps of:
and (3) grouting the ballast bed, forming an exhaust observation hole on the bottom base plate, then grouting the grouting material from a gap on one side between the ballast bed and the bottom base plate until aggregate of the grouting material overflows from a gap on the other side between the bottom base plate and the ballast bed and the exhaust observation hole, checking whether a cavity part which is not filled with the grouting material exists between the bottom base plate and the ballast bed, and repeating the grouting operation process if the cavity part exists until the gap between the bottom base plate and the ballast bed is filled with the grouting material.
Preferably, the step of ballast bed grouting further comprises the following steps of:
and pouring a ballast bed, presetting a pouring position on the roadbed, then pouring and molding the ballast bed by utilizing concrete along the preset pouring position, and presetting the anchoring nails in the ballast bed before molding the ballast bed so that the anchoring nails and the solidified and molded ballast bed can be integrally molded.
Compared with the background technology, the electric flatcar track assembly for the iron casting machine provided by the invention has the advantages that the effective stress area of the whole track assembly is obviously increased through the bottom base plate, so that the pressure and impact on a track bed and a related foundation structure when a vehicle passes through are greatly reduced, meanwhile, the anchoring nails are reliably connected and assembled with the track bed and each layer of base plate, the overall structural strength and the assembly effect of the electric flatcar track assembly for the iron casting machine are greatly improved, the track assembly is more stable and reliable to install and use, in addition, when the top part of the track assembly is damaged or cannot be normally used, the top base plate can be directly disassembled and the related parts are replaced, the whole track assembly is not required to be completely disassembled and replaced, and the overall maintenance difficulty and the use and maintenance cost of the track assembly are obviously reduced.
According to the construction method for producing the electric flat car track assembly of the iron casting machine, the electric flat car track assembly of the iron casting machine with the double-layer cushion plate structure is reliably installed on a track bed through the operation steps of bottom plate arrangement, bottom plate assembly, top plate arrangement, steel rail assembly and the like which are sequentially carried out, so that the effective stress area of the track assembly is greatly increased through the bottom cushion plate, efficient quick replacement and maintenance of easily damaged parts on the upper layer of the track assembly are realized through independent dismounting and replacement of the top cushion plate and related connecting parts of the top cushion plate, the maintenance cost and difficulty of the whole track assembly are greatly reduced, the construction method is simple and easy to operate, the construction efficiency is high, and the overall structure of the track assembly after construction and installation is stable and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an electric flatcar track assembly of an iron casting machine according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for constructing a rail assembly of an electric flatcar for an iron casting machine according to a first embodiment of the present invention;
FIG. 3 is a flow chart of a construction method of an electric flatcar track assembly of an iron casting machine according to a second embodiment of the present invention;
fig. 4 is a flowchart of a construction method of an electric flatcar track assembly of an iron casting machine according to a third embodiment of the present invention.
Wherein, 11-bottom backing plate, 12-anchoring nail, 121-anti-drop hook, 13-top backing plate, 14-steel rail, 15-rail press, 151-bolt and nut assembly, 21-ballast bed and 22-roadbed.
Detailed Description
The core of the invention is to provide the electric flat car track assembly of the iron casting machine, the structural strength of the electric flat car track assembly of the iron casting machine is higher, and the electric flat car track assembly of the iron casting machine is more stable and reliable in the installation and use process; meanwhile, the construction method of the electric flatcar track assembly of the iron casting machine is used for the electric flatcar track assembly of the iron casting machine.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electric flatcar track assembly of an iron casting machine according to an embodiment of the present invention.
In a specific embodiment, the electric flat car track assembly for the iron casting machine comprises a bottom backing plate 11 arranged at the top of a track bed 21 in parallel, wherein a plurality of anchoring nails 12 penetrate through, are embedded, welded and fixed on the bottom backing plate 11 along the thickness direction of the bottom backing plate, the tops of the anchoring nails 12 are coplanar with the top surface of the bottom backing plate 11, and the bottoms of the anchoring nails 12 are embedded and fixed in the track bed 21; the top of the bottom tie plate 11 is parallelly arranged and fixedly welded with a top tie plate 13, the top of the top tie plate 13 is provided with a steel rail 14, and the top of the top tie plate 13 is also provided with rail pressing devices 15 which are symmetrically arranged on two sides of the steel rail 14 and are in compression fit with the steel rail 14.
The effective stress area of the whole track assembly is remarkably improved through the bottom backing plate 11, so that the pressure and impact on the track bed 21 and a related foundation structure when a vehicle passes through are greatly reduced, meanwhile, the anchoring nails 12 are reliably connected and assembled with the track bed 21 and each layer of backing plate, the overall structural strength and the assembly effect of the electric flat car track assembly of the iron casting machine are greatly improved, the track assembly is more stable and reliable to install and use, in addition, when the top part of the track assembly is damaged or cannot be normally used, the top backing plate 13 can be directly disassembled and the related parts are replaced, the whole track assembly is not required to be disassembled and assembled, and the overall maintenance difficulty and the use and maintenance cost of the track assembly are remarkably reduced.
Further, projections of the center lines of the bottom pallet 11, the top pallet 13, and the rails 14 in the longitudinal direction on a horizontal plane on which the top surface of the bottom pallet 11 is located coincide. The structure can ensure that the extension directions of the central lines of the base plates and the steel rails 14 are consistent, so that the stress distribution and the bearing effect of the whole track assembly can be further optimized, the overall structural strength of the track assembly is correspondingly improved, and the assembly structure is more stable and reliable.
More specifically, the width of the underlay sheet 11 is smaller than the width of the track bed 21, and the width of the underlay sheet 13 is smaller than the width of the underlay sheet 11. The component structure with the width decreasing from bottom to top is beneficial to further optimizing the stress distribution and the bearing effect of the track assembly, so that the overall structural strength of the component structure is correspondingly improved, and the structure in the running process of equipment is more stable, stable and reliable.
On the other hand, the rail presser 15 is detachably attached to the top mat 13 by a bolt and nut assembly 151. The bolt and nut assembly structure is simple and reliable, and is simple and easy to assemble and disassemble, the relative assembly operation efficiency can be effectively simplified on the basis of ensuring the reliable assembly between the rail pressing device 15 and the top-layer base plate 13, the disassembly operation efficiency of the rail pressing device 15 and other related components can be correspondingly improved when parts are required to be replaced or maintained, and the operation flow is correspondingly simplified.
The anchor nails 12 have retaining hooks 121 at their ends fitted into the track bed 21. The anti-dropping hook 121 can significantly improve the bonding strength between the anchoring nail 12 and the track bed 21 main structure, and prevent the anchoring nail 12 from being pulled out or separated from the track bed 21, so that the assembly strength and the structural stability between the relevant parts such as the bottom liner plate 11 fixedly connected to the top end of the anchoring nail 12 and the track bed 21 are correspondingly improved.
Referring to fig. 2, fig. 2 is a flowchart illustrating a method for constructing an electric flat car track assembly of an iron casting machine according to a first embodiment of the present invention.
In an embodiment, the present invention provides a method for constructing an electric flat car track assembly for an iron casting machine, which is used for producing the electric flat car track assembly for an iron casting machine, and comprises the following steps:
step 101, arranging a bottom plate:
according to the distribution form and the top end structure size of the anchoring nails 12 preset in the track bed 21, welding holes corresponding to the top ends of the anchoring nails 12 one by one are processed on the bottom backing plate 11, the inner diameter of each welding hole is not smaller than the outer diameter of the top end of the corresponding anchoring nail 12, then the bottom backing plate 11 is arranged on the top of the track bed 21 in parallel, and the top ends of the anchoring nails 12 are correspondingly inserted into the corresponding welding holes one by one.
Step 102, assembling a bottom plate:
and (3) aligning, welding and fixing the inserted positions of the anchoring nails 12 and the welding holes, then cutting off the parts of the anchoring nails 12, which protrude out of the top surface of the bottom backing plate 11, and polishing the top ends of the anchoring nails 12 to be flat so as to enable the top ends to be coplanar with the top surface of the bottom backing plate 11.
Step 103, arranging a top plate:
the top mat 13 is arranged on the top of the bottom mat 11 in parallel in an aligned manner, and the top mat 13 and the bottom mat 11 are welded and fixed.
Step 104, assembling the steel rail 14:
the steel rails 14 are arranged on the top of the top layer backing plate 13 in an aligned mode, and the steel rails 14 are firmly pressed and fixed on the top layer backing plate 13 through rail pressing devices 15.
Specifically, when the underlay sheet 11 is fixed, the elevation of the installed underlay sheet 11 is determined based on the predetermined elevation of the track, that is, the total height of the upper surface of the installed underlay sheet 11 plus the thickness of the upper underlay sheet 13 is equal to the predetermined elevation of the track.
In addition, in the positioning and installation process of the bottom backing plate 11, auxiliary assemblies such as the anchoring nails 12 and the steel reinforcement cage may shake, and in order to avoid the shaking phenomenon from affecting the positioning accuracy, auxiliary positioning accessories can be welded on basic structural members such as the existing rails and the spikes to ensure the positioning accuracy and the assembling effect.
It should be pointed out in addition that, in practical application, the thickness of bottom backing plate 11 and top backing plate 13 is all not less than 25mm to further guarantee the structural strength of each backing plate, avoid its pressurized deformation, and bottom backing plate 11 and top backing plate 13 all preferably are the steel sheet, certainly, under the prerequisite that can guarantee subassembly intensity and assembly effect, it is also possible to adopt the higher metal or non-metal finished piece of other intensity, and the staff can select according to the operating condition is nimble.
Referring to fig. 3, fig. 3 is a flowchart illustrating a construction method of an electric flat car track assembly of an iron casting machine according to a second embodiment of the present invention.
In another embodiment, the present invention provides a method for constructing an electric flat car track assembly for iron casting machine, which is used for continuously producing the electric flat car track assembly for iron casting machine, comprising:
step 201, arranging a bottom plate:
according to the distribution form and the top end structure size of the anchoring nails 12 preset in the track bed 21, welding holes corresponding to the top ends of the anchoring nails 12 one by one are processed on the bottom backing plate 11, the inner diameter of each welding hole is not smaller than the outer diameter of the top end of the corresponding anchoring nail 12, then the bottom backing plate 11 is arranged on the top of the track bed 21 in parallel, and the top ends of the anchoring nails 12 are correspondingly inserted into the corresponding welding holes one by one.
Step 202, assembling a bottom plate:
and (3) aligning, welding and fixing the inserted positions of the anchoring nails 12 and the welding holes, then cutting off the parts of the anchoring nails 12, which protrude out of the top surface of the bottom backing plate 11, and polishing the top ends of the anchoring nails 12 to be flat so as to enable the top ends to be coplanar with the top surface of the bottom backing plate 11.
Step 203, grouting the ballast bed 21:
when the working condition environment of a construction site is the improvement installation construction of a top track of the existing ballast bed 21 and other structures, after the step of bottom plate assembly is completed, an exhaust observation hole is formed in the bottom base plate 11, then grouting material is poured into a gap on one side between the ballast bed 21 and the bottom base plate 11 until aggregate of the grouting material overflows from a gap on the other side between the bottom base plate 11 and the ballast bed 21 and the exhaust observation hole, then whether a cavity part which is not filled with the grouting material exists between the bottom base plate 11 and the ballast bed 21 is checked, and if the cavity part exists, the grouting operation process is repeated until the space between the bottom base plate 11 and the ballast bed 21 is filled with the grouting material.
When actual operation is carried out, the distance between two adjacent exhaust observation holes is preferably 800-1200 mm, the diameter of a single exhaust observation hole is preferably 80mm, of course, the diameter parameter of the exhaust observation hole is only used as the reference when the circular hole structure is adopted, if a square hole or a hole with other regular shapes is adopted, the effective size of the opening part is 80mm multiplied by 80mm, the distance between two adjacent exhaust observation holes can be flexibly adjusted according to the actual working condition, and in principle, the distance can be both the construction effect and the final track assembly structural performance as long as the construction effect and the final track assembly structural performance can be ensured.
Step 204, arranging a top plate:
the top mat 13 is arranged on the top of the bottom mat 11 in parallel in an aligned manner, and the top mat 13 and the bottom mat 11 are welded and fixed.
Step 205, assembling the steel rail 14:
the steel rails 14 are arranged on the top of the top layer backing plate 13 in an aligned mode, and the steel rails 14 are firmly pressed and fixed on the top layer backing plate 13 through rail pressing devices 15.
Specifically, when the underlay sheet 11 is fixed, the elevation of the installed underlay sheet 11 is determined based on the predetermined elevation of the track, that is, the total height of the upper surface of the installed underlay sheet 11 plus the thickness of the upper underlay sheet 13 is equal to the predetermined elevation of the track.
In addition, in the positioning and installation process of the bottom backing plate 11, auxiliary assemblies such as the anchoring nails 12 and the steel reinforcement cage may shake, and in order to avoid the shaking phenomenon from affecting the positioning accuracy, auxiliary positioning accessories can be welded on basic structural members such as the existing rails and the spikes to ensure the positioning accuracy and the assembling effect.
It should be pointed out in addition that, in practical application, the thickness of bottom backing plate 11 and top backing plate 13 is all not less than 25mm to further guarantee the structural strength of each backing plate, avoid its pressurized deformation, and bottom backing plate 11 and top backing plate 13 all preferably are the steel sheet, certainly, under the prerequisite that can guarantee subassembly intensity and assembly effect, it is also possible to adopt the higher metal or non-metal finished piece of other intensity, and the staff can select according to the operating condition is nimble.
Referring to fig. 4, fig. 4 is a flowchart illustrating a construction method of an electric flatcar track assembly of an iron casting machine according to a third embodiment of the present invention.
In another embodiment, the present invention provides a method for constructing an electric flat car track assembly for iron casting machine, which is used for continuously producing the electric flat car track assembly for iron casting machine, comprising:
if the existing track bed 21 is not used as a foundation structure at the construction site, a pouring position is preset on the roadbed 22 at the construction site, then the track bed 21 is poured and formed by concrete along the preset pouring position, and before the track bed 21 is formed, the anchoring nails 12 are preset in the track bed 21 so that the anchoring nails 12 and the solidified and formed track bed 21 can be integrally formed.
according to the distribution form and the top end structure size of the anchoring nails 12 preset in the track bed 21, welding holes corresponding to the top ends of the anchoring nails 12 one by one are processed on the bottom backing plate 11, the inner diameter of each welding hole is not smaller than the outer diameter of the top end of the corresponding anchoring nail 12, then the bottom backing plate 11 is arranged on the top of the track bed 21 in parallel, and the top ends of the anchoring nails 12 are correspondingly inserted into the corresponding welding holes one by one.
and (3) aligning, welding and fixing the inserted positions of the anchoring nails 12 and the welding holes, then cutting off the parts of the anchoring nails 12, which protrude out of the top surface of the bottom backing plate 11, and polishing the top ends of the anchoring nails 12 to be flat so as to enable the top ends to be coplanar with the top surface of the bottom backing plate 11.
when the working condition environment of a construction site is the improvement installation construction of a top track of the existing ballast bed 21 and other structures, after the step of bottom plate assembly is completed, an exhaust observation hole is formed in the bottom base plate 11, then grouting material is poured into a gap on one side between the ballast bed 21 and the bottom base plate 11 until aggregate of the grouting material overflows from a gap on the other side between the bottom base plate 11 and the ballast bed 21 and the exhaust observation hole, then whether a cavity part which is not filled with the grouting material exists between the bottom base plate 11 and the ballast bed 21 is checked, and if the cavity part exists, the grouting operation process is repeated until the space between the bottom base plate 11 and the ballast bed 21 is filled with the grouting material.
When actual operation is carried out, the distance between two adjacent exhaust observation holes is preferably 800-1200 mm, the diameter of a single exhaust observation hole is preferably 80mm, of course, the diameter parameter of the exhaust observation hole is only used as the reference when the circular hole structure is adopted, if a square hole or a hole with other regular shapes is adopted, the effective size of the opening part is 80mm multiplied by 80mm, the distance between two adjacent exhaust observation holes can be flexibly adjusted according to the actual working condition, and in principle, the distance can be both the construction effect and the final track assembly structural performance as long as the construction effect and the final track assembly structural performance can be ensured.
the top mat 13 is arranged on the top of the bottom mat 11 in parallel in an aligned manner, and the top mat 13 and the bottom mat 11 are welded and fixed.
the steel rails 14 are arranged on the top of the top layer backing plate 13 in an aligned mode, and the steel rails 14 are firmly pressed and fixed on the top layer backing plate 13 through rail pressing devices 15.
Specifically, when the underlay sheet 11 is fixed, the elevation of the installed underlay sheet 11 is determined based on the predetermined elevation of the track, that is, the total height of the upper surface of the installed underlay sheet 11 plus the thickness of the upper underlay sheet 13 is equal to the predetermined elevation of the track.
In addition, in the positioning and installation process of the bottom backing plate 11, auxiliary assemblies such as the anchoring nails 12 and the steel reinforcement cage may shake, and in order to avoid the shaking phenomenon from affecting the positioning accuracy, auxiliary positioning accessories can be welded on basic structural members such as the existing rails and the spikes to ensure the positioning accuracy and the assembling effect.
It should be pointed out in addition that, in practical application, the thickness of bottom backing plate 11 and top backing plate 13 is all not less than 25mm to further guarantee the structural strength of each backing plate, avoid its pressurized deformation, and bottom backing plate 11 and top backing plate 13 all preferably are the steel sheet, certainly, under the prerequisite that can guarantee subassembly intensity and assembly effect, it is also possible to adopt the higher metal or non-metal finished piece of other intensity, and the staff can select according to the operating condition is nimble.
In summary, the effective stress area of the whole rail assembly is obviously increased through the bottom backing plate, so that the pressure and impact on a track bed and a related base structure when a vehicle passes through are greatly reduced, meanwhile, the anchoring nails are reliably connected and assembled with the track bed and each layer of backing plate, the overall structural strength and the assembly effect of the electric flat car rail assembly of the iron casting machine are greatly improved, the rail assembly is more stable and reliable to install and use, in addition, when the top part of the rail assembly is damaged or cannot be normally used, the top backing plate can be directly disassembled and the related parts can be replaced, the whole rail assembly does not need to be completely disassembled and replaced, and the overall maintenance difficulty and the use and maintenance cost of the rail assembly are obviously reduced.
In addition, the construction method of the electric flat car track assembly of the iron casting machine for producing the electric flat car track assembly of the iron casting machine, provided by the invention, has the advantages that the operation steps of bottom plate arrangement, bottom plate assembly, top plate arrangement, steel rail assembly and the like are sequentially carried out, the electric flat car track assembly of the iron casting machine with the double-layer cushion plate structure is reliably installed on a track bed, so that the effective stress area of the track assembly is greatly increased through the bottom cushion plate, the top cushion plate and the related connecting pieces of the top cushion plate are independently disassembled and replaced, the efficient quick replacement and maintenance of the wearing parts on the upper layer of the track assembly are realized, the maintenance cost and difficulty of the whole track assembly are greatly reduced, the operation process of the construction method is simple and easy, the construction efficiency is higher, and the overall structure of the track assembly.
The electric flatcar track assembly of the iron casting machine and the construction method of the electric flatcar track assembly of the iron casting machine provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.