阅读说明：本技术 一种底卸式矿车卸载站曲轨结构及其改进方法 (Curved rail structure of unloading station of bottom-dump mine car and improvement method thereof ) 是由 高大林 贾丰杰 王荣林 陆虎 王晓玲 周学荣 黄善达 陶同帅 翟昊 于 2021-09-29 设计创作，主要内容包括：本发明公开了一种底卸式矿车卸载站曲轨结构及改进方法,包括卸载站托辊组、曲轨横梁、曲轨底座和横梁支架,曲轨横梁的下方安装横梁支架,曲轨横梁的上方安装曲轨底座,在曲轨底座与曲轨横梁之间通过在M32的螺孔内对穿M32*130的螺栓进行可拆卸连接；曲轨底座上的根据实际使用需求分为斜切60°曲轨和斜切45°曲轨。本发明采用优化曲轨结构,将曲轨底座与曲轨横梁通过螺栓进行可拆卸连接,减少曲轨磨损,同时,将斜切60°曲轨和斜切45°曲轨采用分段式设计,减少了更换轨道梁的额外工序与材料,减少更换周期和更换难度,提高矿井运输效率、提升矿井安全性能和减少基础设,降低材料成本,极大的保证了生产时间。(The invention discloses a bottom-dump mine car unloading station bend structure and an improvement method, comprising an unloading station carrier roller group, a bend beam, a bend base and a beam support, wherein the beam support is arranged below the bend beam, the bend base is arranged above the bend beam, and the bend base and the bend beam are detachably connected through bolts penetrating through M32X 130 in screw holes of M32; the base of the bend is divided into a 60-degree bend and a 45-degree bend according to actual use requirements. The invention adopts an optimized bend structure, detachably connects the bend base with the bend beam through bolts, reduces the bend abrasion, simultaneously adopts sectional design for the oblique-cutting 60-degree bend and the oblique-cutting 45-degree bend, reduces the extra process and materials for replacing the track beam, reduces the replacement period and the replacement difficulty, improves the mine transportation efficiency, improves the mine safety performance, reduces the basic equipment, reduces the material cost and greatly ensures the production time.)

1. A curved rail structure of a bottom-dump type mine car unloading station comprises an unloading station carrier roller group (1), a curved rail cross beam (2), a curved rail base (3) and cross beam supports (4), and is characterized in that the cross beam supports (4) are installed below the curved rail cross beam (2), the cross beam supports (4) are used for bearing the curved rail cross beam (2), and the two cross beam supports (4) are oppositely arranged on the left side and the right side below the curved rail cross beam (2); a bend base (3) is arranged above the bend beam (2), screw holes (6) of M32 are respectively formed in the mounting surfaces of the bend base (3) and the bend beam (2) at intervals of 300mm, and the bend base (3) and the bend beam (2) are detachably connected through bolts (7) penetrating through M32 x 130 in the screw holes (6) of M32; the bend base (3) is provided with a bend (5), and the bend (5) is divided into a chamfer bend of 60 degrees and a chamfer bend of 45 degrees according to actual use requirements.

2. The bottom-dump car unloading station curved rail structure of claim 1, wherein: the unloading station carrier roller group (1) is formed by erecting 36 carrier roller groups at two ends of an unloading port of an unloading station to support a UK-12 bottom-dump mine car, and the bottom-dump mine car runs on the carrier rollers to unload raw ores.

3. The bottom-dump car unloading station curved rail structure of claim 1, wherein: the bent rail cross beam (2) is a 300 x 300mm I-shaped steel, the thickness of the bent rail cross beam is 25mm, and the bent rail cross beam is used for bearing the bent rail base (3).

4. The bottom-dump car unloading station curved rail structure of claim 1, wherein: the oblique-cutting 60-degree bend is welded on the beam support (4) through the bend beam (2) from the mine car rail entering position to the center of the bend (5), 1m of the bend is divided into a section, and the oblique-cutting surface of each section of oblique-cutting 60-degree bend keeps 60-degree oblique-cutting fit.

5. The bottom-dump car unloading station curved rail structure of claim 1, wherein: the oblique cutting 45-degree bend is welded on the beam support (4) through a bend beam (2) from the center of the mine car to the exit of the bend (5), 2m of the bend is divided into a section, and the oblique cutting surface of each section of oblique cutting 45-degree bend keeps oblique 45-degree fit.

6. A method of improving the structure of the bottom discharge mine car unloading station bend according to claim 1, characterized in that it comprises the following steps:

s1: building an unloading station carrier roller set (1): the unloading carrier roller 36 for the unloading station is only cast by a concrete steel frame to serve as a support, and the gauge of the in-track and out-of-track is 762 mm;

s2: manufacturing a bend beam (2): manufacturing a bent rail crossbeam (2) by adopting 300 x 300mm I-steel with the thickness of 25mm, welding two crossbeam supports (4) below the bent rail crossbeam (2), and symmetrically punching M32 screw holes (6) on the I-steel of the bent rail crossbeam (2) at intervals of 300mm according to a drawing;

s3: installing a chamfered 60-degree bend: the rail with 60-degree oblique bent rails is welded on a connecting plate with the thickness of 25mm by using round steel with the diameter of 80mm and rib plates, the connecting plate is connected by using a rail beam through M32X 130 bolts (7), the spacing is 300mm, the rail is symmetrically arranged, the 60-degree oblique bent rails are used for correcting the coordinate size point by point in a trial run by a mine car when being installed, the height of the 60-degree oblique bent rails is adjusted, the trial run is subjected to spot welding, and the oblique bent rails are welded after being installed and positioned, are made of hardened and tempered steel, the surface of the oblique bent rails is quenched with the semicircular contact surface of the tread of the unloading wheel, the depth is more than or equal to 4mm, the hardness HB 370 is not lower than that of the welding rod, and E6016-D1 is used for the welding rod;

s4: installing a chamfered 45-degree bend: the rail with 45-degree oblique bent rails is welded on a connecting plate with the thickness of 25mm by using round steel with the diameter of 80mm and rib plates, the connecting plate is connected by using a rail beam through M32X 130 bolts (7), the connecting plate is symmetrically arranged at intervals of 300mm, when the 45-degree oblique bent rails are installed, a mine car is used for trial running and correcting the coordinate size point by point, the height of the 45-degree oblique bent rails is adjusted, the trial run is used for spot welding, the oblique bent rails are welded after installation and positioning, the oblique bent rails are made of quenched and tempered steel, the surface of the oblique bent rails and the surface of a semicircular contact surface of a tread of an unloading wheel are quenched, the depth is more than or equal to 4mm, the hardness HB is not lower than 370, and welding rods are E6016-D.

Technical Field

The invention relates to the technical field of mine mining bottom-dump unloading stations, in particular to a curved rail structure of a bottom-dump mine car unloading station and an improvement method thereof.

Background

With the rapid development of national economy of China, the demand of ores is gradually increased year by year, and the capacity is 2m³、4m³、6m³The small mine car can not meet the requirements of current mine production, and the large-volume mine car is favored by mining enterprises. In order to cooperate with the large-volume mine car to unload ores, the unloading stations commonly used in large-scale mines at present are in the forms of a bend side-dumping unloading station, a bottom side-dumping unloading station and a bottom-dumping unloading station.

The existing unloading station mainly comprises: unloading curved rails in contact connection with the chassis, supporting wheels for supporting the carriage of the bottom-unloading mine car, and supporting rails. The present unloading station generally is not equipped with drive arrangement, mainly rely on the effect of the ore weight that the mine car carried and the mine car chassis dead weight, make the mine car receive a horizontal thrust, promote the train and continue to advance, the mine car chassis opens downwards along the bend with its dead weight and the automatic follow bend of the ore weight that carries, the uninstallation wheel of carriage chassis rear end rolls downwards along the bend, the vehicle bottom door is opened newly greatly, the mine car passes through the unloading station central point, the whole uninstallations of ore, it makes progress gradually to unload the wheel roll through the bend inflection point, frame and carriage are closed newly, the bottom door is closed. The friction force between the unloading wheel at the bottom of the mine car and the curved rail is large, so that the curved rail is easy to wear, the service life cycle is short, the curved rail needs to be replaced periodically, and the curved rail needs to be detached and installed in a split mode during replacement, so that the operation is complex, the replacement time is long, and the production is influenced.

Disclosure of Invention

The invention aims to provide a curved rail structure of a bottom-dump mine car unloading station and an improvement method thereof, which solve the problems in the background art by optimizing the curved rail structure, reducing the abrasion of the curved rail, replacing additional processes and materials of a rail beam, reducing the replacement period and the replacement difficulty, improving the mine transportation efficiency, improving the mine safety performance and reducing infrastructure.

In order to achieve the purpose, the invention provides the following technical scheme:

a curved rail structure of an unloading station of a bottom-dump type mine car comprises an unloading station carrier roller group, a curved rail cross beam, a curved rail base and two cross beam supports, wherein the cross beam supports are arranged below the curved rail cross beam and used for bearing the curved rail cross beam; a bend base is arranged above the bend beam, M32 screw holes are respectively formed in the mounting surfaces of the bend base and the bend beam at intervals of 300mm, and the bend base and the bend beam are detachably connected through bolts penetrating M32 and 130 in the screw holes of M32; the bend is arranged on the bend base and is divided into a chamfered 60-degree bend and a chamfered 45-degree bend according to actual use requirements.

Furthermore, the unloading station carrier roller group is formed by erecting 36 carrier roller groups on two ends of an unloading port of the unloading station to support a UK-12 bottom-dump type tramcar, and the bottom-dump type tramcar runs on the carrier rollers to unload raw ores.

Furthermore, the cross beam of the bent rail is an I-shaped steel with the thickness of 25mm and is 300 x 300mm, and the I-shaped steel is used for bearing the base of the bent rail.

Furthermore, the oblique cutting 60-degree bend is welded on the beam bracket through a bend beam from the mine car track entering position to the center of the bend, 1m of the oblique cutting 60-degree bend is divided into a section, and the oblique cutting surface of each section of oblique cutting 60-degree bend is kept in 60-degree engagement.

Furthermore, the oblique cutting 45-degree bend is welded on the beam support through a bend beam from the center of the mine car to the exit of the bend, 2m of the oblique cutting 45-degree bend is divided into a section, and the oblique cutting surface of each section of the oblique cutting 45-degree bend is kept in 45-degree engagement.

The invention provides another technical scheme: an improvement method of a curved rail structure of a bottom-dump mine car unloading station comprises the following steps:

s1: building a carrier roller set of the unloading station: the unloading carrier roller 36 for the unloading station is only cast by a concrete steel frame to serve as a support, and the gauge of the in-track and out-of-track is 762 mm;

s2: manufacturing a curved rail beam: manufacturing a bend beam by adopting 300 x 300mm I-steel with the thickness of 25mm, welding two beam supports below the bend beam, and symmetrically punching M32 screw holes on the bend beam I-steel at intervals of 300mm according to a drawing;

s3: installing a chamfered 60-degree bend: the rail with 60-degree oblique bent rails is welded on a connecting plate with the thickness of 25mm by using round steel with the diameter of 80mm and rib plates, the connecting plate is connected by using a rail beam through M32X 130 bolts and is symmetrically arranged at the interval of 300mm, when the oblique bent rails are installed, a mine car is used for trial running and correcting the coordinate size point by point, the height of the oblique bent rails with 60 degrees is adjusted, the trial run is used for spot welding, and the oblique bent rails are welded after installation and positioning, the oblique bent rails with 60 degrees are made of hardened and tempered steel, the surface of the oblique bent rails and the surface of a semicircular contact surface of a tread of an unloading wheel are quenched, the depth is more than or equal to 4mm, the hardness HB is not lower than 370, and welding rods are E6016-D1;

s4: installing a chamfered 45-degree bend: the rail with the 45-degree oblique bend is welded on a connecting plate with the thickness of 25mm by using round steel with the diameter of 80mm and rib plates, the connecting plate is connected by using a rail beam through M32X 130 bolts and is symmetrically arranged at intervals of 300mm, when the 45-degree oblique bend is installed, a mine car is used for trial running and correcting the coordinate size point by point, the height of the 45-degree oblique bend is adjusted, the trial run is subjected to spot welding, and the oblique bend is welded after installation and positioning, the 45-degree oblique bend is made of hardened and tempered steel, the surface and the semicircular contact surface of the unloading wheel tread are quenched, the depth is more than or equal to 4mm, the hardness HB is not lower than 370, and the welding rod is E6016-D.

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

the invention provides a bottom dump car unloading station bend structure and an improvement method, which can be matched with an unloading station for running of a bottom dump car in a mining conveying system for use, wherein an optimized bend structure is adopted, a bend base and a bend beam are detachably connected through bolts penetrating through M32 130 in screw holes of M32, the abrasion of the bend is reduced, meanwhile, oblique cutting 60-degree bends are divided into one section according to the interval of 1M, oblique cutting 45-degree bends are divided into one section according to the interval of 2M, the additional process and materials for replacing the track beam are reduced, the replacement period and the replacement difficulty are reduced, the mine conveying efficiency is improved, the mine safety performance is improved, the foundation is reduced, the material cost is reduced, and the production time is greatly ensured.

Drawings

FIG. 1 is a half elevation view of an unloading station of the present invention;

FIG. 2 is a top view of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a cross-sectional view of a cross-beam of the present invention;

FIG. 5 is a view showing a state of use of the cross member of the present invention;

FIG. 6 is a cross-sectional view taken along line E-E of FIG. 5 in accordance with the present invention.

In the figure: 1. an unload station carrier roller set; 2. a curved rail beam; 3. a curved rail base; 4. a beam support; 5. a bend; 6. a screw hole; 7. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the embodiment of the invention provides a curved rail structure of a bottom-dump type mine car unloading station, which comprises an unloading station carrier roller group 1, a curved rail cross beam 2, a curved rail base 3 and a cross beam support 4, wherein the cross beam support 4 is arranged below the curved rail cross beam 2, the cross beam support 4 is used for bearing the curved rail cross beam 2, and the two cross beam supports 4 are oppositely arranged on the left and right sides below the curved rail cross beam 2; a bend base 3 is arranged above the bend beam 2, screw holes 6 of M32 are respectively formed in the mounting surfaces of the bend base 3 and the bend beam 2 at intervals of 300mm, and the bend base 3 and the bend beam 2 are detachably connected through bolts 7 penetrating through M32 and 130 in the screw holes 6 of M32; set up bend 5 on the bend base 3, bend 5 divide into according to the in-service use demand and chamfer 60 bends and chamfer 45 bends, whole simple structure, convenient operation reduces 5 installation of bends, reduces maintenance time, reduction material cost, very big assurance production time.

As shown in fig. 1-2, the unloading station carrier roller group 1 is formed by erecting 36 carrier roller groups at two ends of an unloading port of an unloading station to support a UK-12 bottom-dump type mine car which operates on carrier rollers to unload raw ores, wherein the 36 carrier roller groups are cast by concrete steel frames as supports, and the track gauge of the on-track and off-track is 762 mm.

As shown in fig. 3-4, the cross member 2 is an i-beam with a thickness of 300 × 300mm, and a thickness of 25mm, and is used as a bearing of the base 3 of the curved rail, and screw holes 6 of M32 are arranged on the cross member at intervals of 300mm according to the drawing.

As shown in fig. 5-6, the oblique-cut 60-degree curved rail is welded on the beam bracket 4 through the curved rail beam 2 from the tramcar track-entering position to the center of the curved rail 5, 1m of the oblique-cut 60-degree curved rail is divided into a section, and the oblique-cut surface of each section of oblique-cut 60-degree curved rail keeps 60-degree engagement; wherein, the installation structure of the oblique cutting bend of 45 degrees is the same as the installation structure of the oblique cutting bend of 60 degrees; the oblique cutting 45-degree bend is welded on a beam support 4 through a bend beam 2 from the center of the mine car to the exit of the bend 5, 2m of the bend is divided into a section, and the oblique cutting surface of each section of oblique cutting 45-degree bend keeps oblique 45-degree fit.

To further better explain the invention, the embodiment of the invention also provides an improved method for the curved rail structure of the unloading station of the bottom-dump mine car, which comprises the following steps:

the first step is as follows: building an unloading station carrier roller set 1: the unloading carrier roller 36 for the unloading station is only cast by a concrete steel frame to be used as a support, and the gauge of the in-track and out-of-track is 762mm, as shown in the figure 1-2;

the second step is that: manufacturing a bend beam 2: manufacturing a bent rail crossbeam 2 by adopting 300 x 300mm I-steel with the thickness of 25mm, welding two crossbeam supports 4 below the bent rail crossbeam 2, and symmetrically punching M32 screw holes 6 on the I-steel of the bent rail crossbeam 2 at intervals of 300mm according to a drawing, as shown in figures 3-4;

the third step: installing a chamfered 60-degree bend: the rail of the 60-degree oblique bend is welded on a connecting plate with the thickness of 25mm by using round steel with the diameter of 80mm and a rib plate, the connecting plate is connected by using a rail beam through M32X 130 bolts 7 at intervals of 300mm and is symmetrically arranged, the 60-degree oblique bend is tried to correct the coordinate size point by using a mine car when being installed, the height of the 60-degree oblique bend is adjusted, the test run is subjected to spot welding, and the oblique bend is welded after being installed and positioned, the oblique bend of 60 degrees is made of hardened and tempered steel, the surface of the oblique bend and the surface of a semicircular contact surface of a tread of an unloading wheel are subjected to quenching treatment, the depth is more than or equal to 4mm, the hardness HB is not lower than 370, and the welding rod is E6016-D1;

the fourth step: installing a chamfered 45-degree bend: the rail with the 45-degree oblique bend is welded on a connecting plate with the thickness of 25mm by using round steel with the diameter of 80mm and rib plates, the connecting plate is connected by using a rail beam through M32X 130 bolts 7 at intervals of 300mm and is symmetrically arranged, the 45-degree oblique bend is tried to correct the coordinate size point by using a mine car when being installed, the height of the 45-degree oblique bend is adjusted, the test run is subjected to spot welding, and the oblique bend is welded after being installed and positioned, the 45-degree oblique bend is made of hardened and tempered steel, the surface and the semicircular contact surface of the unloading wheel tread are quenched, the depth is more than or equal to 4mm, the hardness HB 370 is not lower than E6016-D, and welding rods are made of E6016-D.

The invention provides a bottom dump car unloading station bend structure and an improvement method, which can be matched with an unloading station of bottom dump car operation in a mining conveying system for use, adopts an optimized bend structure, detachably connects a bend base 3 and a bend beam 2 through a bolt 7 penetrating through M32 130 in a screw hole 6 of M32, reduces bend abrasion, simultaneously, divides a 60-degree bend into a section design according to the interval of 1M, divides a 45-degree bend into a section design according to the interval of 2M, reduces additional processes and materials for replacing a track beam, reduces replacement period and replacement difficulty, improves mine conveying efficiency, improves mine safety performance, reduces basic equipment, reduces material cost and greatly ensures production time.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.