CN211254472U - Large-diameter single-tube trestle - Google Patents
Large-diameter single-tube trestle Download PDFInfo
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- CN211254472U CN211254472U CN201921017758.0U CN201921017758U CN211254472U CN 211254472 U CN211254472 U CN 211254472U CN 201921017758 U CN201921017758 U CN 201921017758U CN 211254472 U CN211254472 U CN 211254472U
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Abstract
A large-diameter single-tube trestle comprises: trestle, large-diameter single round steel pipe, single round steel pipe supporting seat; the trestle comprises trestle columns and trestle supporting beams which are positioned at two ends of the length of the single round steel pipe, wherein the two ends of the length of the trestle supporting beam are respectively fixedly connected with the trestle columns, the lower ends of the trestle columns are fixed with the reinforced concrete foundation, the single round steel pipe with large diameter is transversely arranged between the two trestle columns, the single round steel pipe is supported by a single round steel pipe supporting seat, and the single round steel pipe supporting seat is supported by the trestle supporting beam; the belt conveyor is arranged on the steel plate ground of the single round steel pipe; a lighting ventilation window is arranged on the side wall of the single round steel pipe; the structure is simple, the stress transmission is clear, the single integral circular steel tube is used as a supporting structure and closed to a building, the installation progress is fast, the economy is good, and the large-span trestle structure is suitable for use; the outer circle surface of the single round steel pipe is provided with a stiffening rib to ensure local stability, and the ventilation of the large steel pipe trestle adopts natural air inlet at two ends of the trestle and unpowered ventilator air exhaust on the roof.
Description
Technical Field
The utility model relates to a belt landing stage technical field specifically is a major diameter single tube landing stage.
Background
A single-path or double-path belt is generally arranged on a common trestle in an industrial factory building, and the width of the trestle is 4-9 m. The trestle body can adopt a steel structure or a reinforced concrete structure according to the span, the span of a common reinforced concrete beam is usually not more than 14m, when the span of the trestle exceeds 18m, the trestle generally adopts a steel truss structure, the trestle adopts two trusses for bearing, the section of the trestle is rectangular, two sides of the trestle are lighting windows, the middle of a coal conveying belt is arranged, two sides of the trestle are walkways, the upper part of the trestle is a pipeline, a cable bridge and the like, and the trestle is a very mature arrangement form and an outer vertical surface design. However, the trestle type belt conveying structure in the prior art is complex in design, high in construction difficulty, long in period and not attractive in appearance.
SUMMERY OF THE UTILITY MODEL
A large-diameter single-tube trestle comprises: the trestle comprises a trestle 1, a large-diameter single round steel pipe 2 and a single round steel pipe supporting seat 3; the trestle 1 comprises trestle columns 11 and trestle supporting beams 12 which are positioned at two ends of the length of the single round steel pipe 2, wherein the two ends of the length of the trestle supporting beam 12 are fixedly connected with the trestle columns 11 respectively, the lower ends of the trestle columns 11 are fixed with a reinforced concrete foundation, the single round steel pipe 2 with large diameter is transversely arranged between the two trestle columns 11, the single round steel pipe 2 is supported by a single round steel pipe supporting seat 3, and the single round steel pipe supporting seat 3 is supported by the trestle supporting beam 12 so as to transmit the weight to the ground through the trestle columns 11; a pipeline cable bridge 4 is welded in the single round steel tube 2, a steel plate ground 21 is welded in the single round steel tube 2, a belt conveyor 5 is arranged on the steel plate ground 21, and walkways are arranged on two sides of the belt conveyor 5; and a lighting ventilating window 22 is arranged on the side wall of the single round steel pipe 2.
The utility model relates to a with large-span major diameter steel pipe landing stage system in the industrial factory building, this structural system not only satisfies the requirement of arranging of specialty such as material, fire control, warm expert, rational in infrastructure moreover, pleasing to the eye reliable. On the premise of operation requirement, a fire-fighting, heating and ventilating system can be arranged on the inner side of the single round steel pipe.
Single round steel pipe supporting seat 3 includes arc backup pad 31, the trapezoidal backup pad 32 of inversion, support plane board 33, the outer disc of arc backup pad 31 is provided with a plurality of trapezoidal backup pads 32, a plurality of trapezoidal backup pads 32 are arranged to both sides in arc backup pad 31 central line both sides and by the mode that highly increases progressively both sides, the lower facial height parallel and level of a plurality of trapezoidal backup pads 32 just all with the last face welded fastening of support plane board 33, support plane board 33 welded fastening is in the last holding surface of trestle supporting beam 12.
Arc backup pad 31 is used for supporting single circular steel tube 2 and inside whole weight, single circular steel tube 2 directly dress hang place in the arc backup pad 31 can, construction convenience, cycle shorten.
In the large-diameter single-tube trestle, the arc-shaped support plates 31 are symmetrically distributed on two sides of the vertical central line of the single circular steel tube 2, and the included angle alpha between the two end surfaces of the arc-shaped support plates 31 and the connecting line of the circle centers of the single circular steel tubes 2 is 100-150 degrees.
Preferably, the large-diameter single-tube trestle and the trestle supporting beam 12 further comprise a trapezoidal supporting plate connecting plate 34, the trapezoidal supporting plate connecting plate 34 is welded between the two adjacent trapezoidal supporting plate 32 faces, the upper end arc face of the trapezoidal supporting plate connecting plate 34 is welded with the outer circular face of the arc supporting plate 31 in a seamless mode, the lower end face of the trapezoidal supporting plate connecting plate is welded with the supporting plane plate 33 in a seamless mode, and the two side faces of the trapezoidal supporting plate 32 are welded with the adjacent trapezoidal supporting plate in a seamless mode.
The trapezoidal supporting plate connecting plate 34 improves the supporting strength of the single circular steel tube supporting seat 3 on the one hand, and can improve the transverse shearing resistance of the single circular steel tube 2 and enhance the anti-seismic effect.
Preferably, the D/2 plane height of the single round steel pipe 2 of the large-diameter single-pipe trestle is defined as a zero-height plane, the gravity center height of the belt conveyor 5 is within a range of + D/8-D/8 plane height, and D is the diameter of the outer circle of the single round steel pipe 2.
The support stability of the single round steel pipe 2 can be greatly improved by lowering the action center of the belt conveyor 5 below the diameter plane of the single round steel pipe 2. However, the diameter of the round pipe is the minimum thickness defined in national standards, and the diameter of the round pipe which is too large to meet the use standard cannot be set, so that material waste is caused, according to the specification of 12.3.1 in DLT 5187.1-2016 thermal power plant coal transportation design technical specification, the trestle is symmetrically arranged along the vertical central line, on the premise of meeting the requirements of total width and clearance, the diameter of the round pipe is determined according to the minimum integer, the thickness of the steel plate of the round pipe is determined according to the formula of 6.1.1 in GB 50017 plus 2017 steel structure design standard, so that the diameter of the round pipe cannot be expanded to the utmost, and the limitation on the gravity height of the belt conveyor 5 is significant.
Preferably, a plurality of I-steel supporting beams 13's that large diameter single tube trestle, steel sheet ground 21 were arranged in last face, a plurality of I-steel supporting beams 13 pass the trestle post 11 welded fastening of length section and length both ends and both sides of single circular steel pipe 2, are provided with I-steel supporting beam 13 under the width both ends of belt feeder 5, the intermediate position of two belt feeders 5 at least.
Preferably, the pipeline cable bridge 4 of the large-diameter single-pipe trestle is positioned on the upper end circular surface of the single-round steel pipe 2 or the lower end circular surface below the steel plate ground 21.
Preferably, when the pipeline cable bridge 4 is located on the lower end circular surface below the steel plate ground 21, the pipeline cable bridge 4 is directly welded and fixed with the i-steel support beam 13, the pipeline cable bridge 4 for supporting the pipeline layer and the cable layer is directly supported by the bridge columns 11 at two ends through the i-steel support beam 13, and stress transfer is clear.
Preferably, the full length of the outer circular surface of the large-diameter single-pipe trestle and the single-round steel pipe 2 are provided with annular stiffening ribs which are arranged at equal intervals, and the interval between every two adjacent stiffening ribs is equal to 0.8-1.2D and is less than or equal to 7.5 m.
The circumferential stiffening ribs are arranged too densely, so that the construction period is prolonged, the raw material cost is improved, and the local supporting effect of the stiffening ribs is reduced due to the arrangement of too sparse stiffening ribs.
Preferably, the single pipe trestle with the large diameter and the single circular steel pipe 2 are provided with a plurality of longitudinal stiffening ribs which are annularly arranged at equal angles in the whole length, and the longitudinal stiffening ribs and the annular stiffening ribs are connected through welding seams.
Preferably, the circumferential stiffening rib of the large-diameter single-pipe trestle adopts angle steel or channel steel, the longitudinal stiffening rib adopts a platform plate steel plate, a right-angle plate surface of the circumferential stiffening rib in the form of the angle steel is welded and fixed with the outer circular surface of the single round steel pipe 2, and the longitudinal stiffening rib is welded and fixed with the upper end surface of the other right-angle plate of the circumferential stiffening rib; the end faces of the two wing plates of the annular stiffening rib in the channel steel form are welded and fixed with the outer circular face of the single round steel pipe 2, and the longitudinal stiffening rib is welded and fixed with the outer plate face of the web plate of the channel steel.
Preferably, the steel plate ground 21 in the large-diameter single-pipe trestle and the single round steel pipe 2 is provided with a single-path belt conveyor 2 or a double-path belt conveyor 2.
Preferably, the lighting ventilation window 22 of the large-diameter single-tube trestle comprises a plurality of transparent lighting windows 221 and unpowered ventilators 222 which are arranged at equal intervals, wherein the lighting windows 221 are positioned on the circular surfaces at two sides of the single-round steel tube 2, and an included angle β formed by a connecting line of the lighting windows 221 and the circle center of the single-round steel tube 2 and a horizontal plane is 25-40 degrees; the top round surface of the single round steel pipe 2 is provided with an unpowered ventilator 222.
The ventilation of the large-diameter single-tube trestle adopts natural air intake at two ends of the trestle and air exhaust of a roof unpowered ventilator; the maintenance system of traditional landing stage is replaced to the closure that utilizes single circular steel tube itself, and major diameter single circular steel tube landing stage is owing to the particularity of structure, should not adopt belt daylighting, adopts the daylighting window of point type arrangement to reach inside daylighting standard. The lighting window 221 can be opened by a manual or electric window opener.
Description of the drawings:
the embodiments are further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the overall structure of a large-diameter single tube according to the present invention;
FIG. 2 is a schematic view of a transverse cross-section structure of a single round steel pipe in a large-diameter single pipe according to the present invention;
FIG. 3 is a partial longitudinal sectional view of a single circular steel tube support base in a large-diameter single tube according to the present invention;
FIG. 4 is a transverse cross-sectional view A-A of FIG. 3;
the specific structure corresponding to the number is as follows:
the device comprises a trestle 1, a trestle column 11, a trestle support beam 12, an I-shaped steel support beam 13, a single round steel pipe 2, a steel plate ground 21, a lighting ventilation window 22, a lighting window 221, a non-powered ventilator 222, a single round steel pipe support seat 3, an arc-shaped support plate 31, a trapezoidal support plate 32, a support plane plate 33, a support plate connecting plate 34, a pipeline cable bridge 4 and a belt conveyor 5;
the following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
Specific embodiment example 1:
a large-diameter single-tube trestle comprises: the trestle comprises a trestle 1, a large-diameter single round steel pipe 2 and a single round steel pipe supporting seat 3; the trestle 1 comprises trestle columns 11 and trestle supporting beams 12 which are positioned at two ends of the length of the single round steel pipe 2, wherein the two ends of the length of the trestle supporting beam 12 are fixedly connected with the trestle columns 11 respectively, the lower ends of the trestle columns 11 are fixed with a reinforced concrete foundation, the single round steel pipe 2 with large diameter is transversely arranged between the two trestle columns 11, the single round steel pipe 2 is supported by a single round steel pipe supporting seat 3, and the single round steel pipe supporting seat 3 is supported by the trestle supporting beam 12 so as to transmit the weight to the ground through the trestle columns 11; a pipeline cable bridge 4 is welded in the single round steel pipe 2, a steel plate ground 21 is welded in the single round steel pipe 2, a belt conveyor 5 is arranged on the steel plate ground 21, a walkway is arranged on two sides of the belt conveyor 5, and the single belt conveyor 2 is arranged on the steel plate ground 21 in the single round steel pipe 2; the side wall of the single round steel tube 2 is provided with a lighting ventilating window 22, the lighting ventilating window 22 comprises a plurality of transparent lighting windows 221 and unpowered ventilators 222 which are arranged at equal intervals, the lighting windows 221 are positioned on the circular surfaces at two sides of the single round steel tube 2, and an included angle beta between a connecting line of the lighting windows 221 and the circle center of the single round steel tube 2 and the horizontal plane is 25 degrees or 30 degrees; the top round surface of the single round steel pipe 2 is provided with an unpowered ventilator 222.
The single round steel pipe supporting seat 3 comprises an arc-shaped supporting plate 31, inverted trapezoid supporting plates 32, a supporting plane plate 33 and trapezoid supporting plate connecting plates 34, wherein the plurality of trapezoid supporting plates 32 are arranged on the outer circumferential surface of the arc-shaped supporting plate 31, the plurality of trapezoid supporting plates 32 are arranged on two sides of the center line of the arc-shaped supporting plate 31 and are arranged towards two sides in a height increasing mode from two sides of the center line, the lower plate surfaces of the plurality of trapezoid supporting plates 32 are level in height and are welded and fixed with the upper plate surface of the supporting plane plate 33, and the supporting plane plate 33 is welded and fixed on the upper supporting surface of the trestle supporting beam 12; the upper end arc surface of the trapezoidal support plate connecting plate 34 is welded with the outer circular surface of the arc support plate 31 in a seamless mode, the lower end surface of the trapezoidal support plate connecting plate is welded with the support plane plate 33 in a seamless mode, and the two side plate surfaces of the trapezoidal support plate connecting plate are welded with the adjacent trapezoidal support plates 32 in a seamless mode. The arc-shaped support plates 31 are symmetrically distributed on two sides of the vertical center line of the single circular steel tube 2, and the included angle alpha between the two end faces of the arc-shaped support plates 31 and the connecting line of the circle centers of the single circular steel tube 2 is 105 degrees or 120 degrees.
Further, the D/2 plane height of the single round steel pipe 2 is defined as a zero height surface, the gravity center height of the belt conveyor 5 is + D/8, and D is the outer circle diameter of the single round steel pipe 2.
Further, the steel plate ground 21 is arranged on the upper plate surfaces of the plurality of I-shaped steel supporting beams 13, the plurality of I-shaped steel supporting beams 13 penetrate through the length section of the single circular steel tube 2, and the two ends of the length section are welded and fixed with the trestle columns 11 on the two sides; wherein, I-shaped steel supporting beams 13 are arranged at the two width end parts of the belt conveyors 5 and right below the middle positions of the two belt conveyors 5.
Further, pipeline cable testing bridge 4 is located the upper end disc of single circular steel tube 2 or is located the lower extreme disc below steel sheet ground 21, works as when pipeline cable testing bridge 4 is located the lower extreme disc below steel sheet ground 21, pipeline cable testing bridge 4 is direct and I-steel supporting beam 13 welded fastening, pipeline cable testing bridge 4 for supporting pipeline layer and cable layer passes through I-steel supporting beam 13 and directly is supported by the landing stage post 11 at both ends, and the atress transmission is clear and definite.
Furthermore, annular stiffening ribs which are arranged at equal intervals are arranged on the whole length of the outer circular surface of the single circular steel tube 2, the interval between every two adjacent stiffening ribs is equal to D and less than or equal to 7.5 m, a plurality of longitudinal stiffening ribs which are arranged at equal angles in an annular mode are arranged on the whole length of the single circular steel tube 2, and the longitudinal stiffening ribs are connected with the annular stiffening ribs through welding seams; the circumferential stiffening ribs are made of angle steel or channel steel, the longitudinal stiffening ribs are made of platform plate steel plates, a right-angle plate face of one circumferential stiffening rib in the form of the angle steel is welded and fixed with the outer circular face of the single round steel pipe 2, and the longitudinal stiffening ribs are welded and fixed with the upper end face of the other right-angle plate of the circumferential stiffening ribs; the end faces of the two wing plates of the annular stiffening rib in the channel steel form are welded and fixed with the outer circular face of the single round steel pipe 2, and the longitudinal stiffening rib is welded and fixed with the outer plate face of the web plate of the channel steel.
The large-diameter single-pipe trestle related to the specific embodiment has the advantages that the structure is simple, stress transmission is clear, the original steel truss system is replaced by a single integral circular steel pipe, the single integral circular steel pipe is also used as a supporting structure and closed to a building, the large-diameter single-pipe trestle is suitable for factory manufacturing, the field installation progress is fast, and the economical efficiency is good; stiffening ribs are adopted to ensure local stability, and natural air intake at two ends of the trestle and air exhaust of a roof unpowered ventilator are adopted for ventilation of the large steel pipe trestle; moreover, the large-diameter single-tube trestle is simple in structure and suitable for a large-span trestle structure.
Specific embodiment example 2:
a large-diameter single-tube trestle comprises: the trestle comprises a trestle 1, a large-diameter single round steel pipe 2 and a single round steel pipe supporting seat 3; the trestle 1 comprises trestle columns 11 and trestle supporting beams 12 which are positioned at two ends of the length of the single round steel pipe 2, wherein the two ends of the length of the trestle supporting beam 12 are fixedly connected with the trestle columns 11 respectively, the lower ends of the trestle columns 11 are fixed with a reinforced concrete foundation, the single round steel pipe 2 with large diameter is transversely arranged between the two trestle columns 11, the single round steel pipe 2 is supported by a single round steel pipe supporting seat 3, and the single round steel pipe supporting seat 3 is supported by the trestle supporting beam 12 so as to transmit the weight to the ground through the trestle columns 11; a pipeline cable bridge 4 is welded in the single round steel pipe 2, a steel plate ground 21 is welded in the single round steel pipe 2, a belt conveyor 5 is arranged on the steel plate ground 21, a walkway is arranged on two sides of the belt conveyor 5, and a double-path belt conveyor 2 is arranged on the steel plate ground 21 in the single round steel pipe 2; the side wall of the single round steel tube 2 is provided with a lighting ventilating window 22, the lighting ventilating window 22 comprises a plurality of transparent lighting windows 221 and unpowered ventilators 222 which are arranged at equal intervals, the lighting windows 221 are positioned on the circular surfaces at two sides of the single round steel tube 2, and an included angle beta between a connecting line of the lighting windows 221 and the circle center of the single round steel tube 2 and the horizontal plane is 35 degrees or 40 degrees; the top round surface of the single round steel pipe 2 is provided with an unpowered ventilator 222.
The single round steel pipe supporting seat 3 comprises an arc-shaped supporting plate 31, inverted trapezoid supporting plates 32, a supporting plane plate 33 and trapezoid supporting plate connecting plates 34, wherein the plurality of trapezoid supporting plates 32 are arranged on the outer circumferential surface of the arc-shaped supporting plate 31, the plurality of trapezoid supporting plates 32 are arranged on two sides of the center line of the arc-shaped supporting plate 31 and are arranged towards two sides in a height increasing mode from two sides of the center line, the lower plate surfaces of the plurality of trapezoid supporting plates 32 are level in height and are welded and fixed with the upper plate surface of the supporting plane plate 33, and the supporting plane plate 33 is welded and fixed on the upper supporting surface of the trestle supporting beam 12; the upper end arc surface of the trapezoidal support plate connecting plate 34 is welded with the outer circular surface of the arc support plate 31 in a seamless mode, the lower end surface of the trapezoidal support plate connecting plate is welded with the support plane plate 33 in a seamless mode, and the two side plate surfaces of the trapezoidal support plate connecting plate are welded with the adjacent trapezoidal support plates 32 in a seamless mode. The arc-shaped support plates 31 are symmetrically distributed on two sides of the vertical center line of the single round steel tube 2, and the included angle alpha between the two end faces of the arc-shaped support plates 31 and the connecting line of the circle centers of the single round steel tube 2 is 130 degrees or 140 degrees.
Further, the D/2 plane height of the single round steel pipe 2 is defined as a zero height surface, and the gravity center height of the belt conveyor 5 is within the range of 0 or D/10 plane height, wherein D is the diameter of the outer circle of the single round steel pipe 2.
Further, the steel plate ground 21 is arranged on the upper plate surfaces of a plurality of I-shaped steel supporting beams 13 which are arranged at equal intervals, the I-shaped steel supporting beams 13 penetrate through the length section and the two ends of the single round steel pipe 2 and are welded and fixed with the trestle columns 11 on the two sides, and the I-shaped steel supporting beams 13 are arranged at the two width end parts of the belt conveyor 5 and under the middle positions of the two belt conveyors 5.
Further, pipeline cable testing bridge 4 is located the upper end disc of single circular steel tube 2 or is located the lower extreme disc below steel sheet ground 21, works as when pipeline cable testing bridge 4 is located the lower extreme disc below steel sheet ground 21, pipeline cable testing bridge 4 is direct and I-steel supporting beam 13 welded fastening, pipeline cable testing bridge 4 for supporting pipeline layer and cable layer passes through I-steel supporting beam 13 and directly is supported by the landing stage post 11 at both ends, and the atress transmission is clear and definite.
Furthermore, annular stiffening ribs which are arranged at equal intervals are arranged on the whole length of the outer circular surface of the single circular steel tube 2, the interval between every two adjacent stiffening ribs is equal to 1.2D and less than or equal to 7.5 m, a plurality of longitudinal stiffening ribs which are arranged at equal angles in an annular mode are arranged on the whole length of the single circular steel tube 2, and the longitudinal stiffening ribs are connected with the annular stiffening ribs through welding seams; the circumferential stiffening ribs are made of angle steel or channel steel, the longitudinal stiffening ribs are made of platform plate steel plates, a right-angle plate face of one circumferential stiffening rib in the form of the angle steel is welded and fixed with the outer circular face of the single round steel pipe 2, and the longitudinal stiffening ribs are welded and fixed with the upper end face of the other right-angle plate of the circumferential stiffening ribs; the end faces of the two wing plates of the annular stiffening rib in the channel steel form are welded and fixed with the outer circular face of the single round steel pipe 2, and the longitudinal stiffening rib is welded and fixed with the outer plate face of the web plate of the channel steel.
The large-diameter single-pipe trestle related to the specific embodiment has the advantages that the structure is simple, stress transmission is clear, the original steel truss system is replaced by a single integral circular steel pipe, the single integral circular steel pipe is also used as a supporting structure and closed to a building, the large-diameter single-pipe trestle is suitable for factory manufacturing, the field installation progress is fast, and the economical efficiency is good; stiffening ribs are adopted to ensure local stability, and natural air intake at two ends of the trestle and air exhaust of a roof unpowered ventilator are adopted for ventilation of the large steel pipe trestle; moreover, the large-diameter single-tube trestle is simple in structure and suitable for a large-span trestle structure.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The utility model provides a major diameter single tube landing stage which characterized in that: the method comprises the following steps: trestle, large-diameter single round steel pipe, single round steel pipe supporting seat; the trestle comprises trestle columns and trestle supporting beams which are positioned at two ends of the length of the single round steel pipe, wherein the two ends of the length of the trestle supporting beam are respectively fixedly connected with the trestle columns, the lower ends of the trestle columns are fixed with the reinforced concrete foundation, the large-diameter single round steel pipe is transversely arranged between the two trestle columns, the single round steel pipe is supported by a single round steel pipe supporting seat, and the single round steel pipe supporting seat is supported by the trestle supporting beam so as to transmit the weight to the ground through the trestle columns; the pipeline cable bridge is welded in the single round steel pipe, a steel plate ground is welded in the single round steel pipe, a belt conveyor is arranged on the steel plate ground, walkways are arranged on two sides of the belt conveyor, and a single-way belt conveyor or a double-way belt conveyor is arranged on the steel plate ground in the single round steel pipe; a lighting ventilation window is arranged on the side wall of the single round steel pipe;
the single round steel pipe supporting seat comprises an arc-shaped supporting plate, inverted trapezoid supporting plates and a supporting plane plate, wherein a plurality of trapezoid supporting plates are arranged on the outer circumferential surface of the arc-shaped supporting plate, are distributed on two sides of the center line of the arc-shaped supporting plate and are arranged from the two sides of the center line in a height increasing mode to the two sides, the lower plate surfaces of the trapezoid supporting plates are level in height and are welded and fixed with the upper plate surface of the supporting plane plate, and the supporting plane plate is welded and fixed on the upper supporting surface of the trestle supporting beam;
the arc-shaped supporting plates are symmetrically distributed on two sides of the vertical central line of the single circular steel tube, and the included angle alpha between the two end faces of each arc-shaped supporting plate and the connecting line of the circle centers of the single circular steel tubes is 100-150 degrees.
2. The large diameter single tube trestle of claim 1, wherein: the trestle supporting beam further comprises trapezoidal supporting plate connecting plates, the number of the trapezoidal supporting plate connecting plates is two, the trapezoidal supporting plate connecting plates are welded between the trapezoidal supporting plate faces, the upper end arc faces of the trapezoidal supporting plate connecting plates are welded with the outer circular faces of the arc supporting plates in a seamless mode, the lower end faces of the trapezoidal supporting plate connecting plates are welded with the supporting plane plates in a seamless mode, and the two side faces of the trapezoidal supporting plates are welded with the adjacent trapezoidal.
3. The large diameter single tube trestle of claim 1, wherein: and defining the D/2 plane height of the single round steel pipe as a zero height plane, and then the gravity center height of the belt conveyor is in the range of + D/8-D/8 plane height, wherein D is the diameter of the outer circle of the single round steel pipe.
4. The large diameter single tube trestle of claim 1, wherein: a plurality of I-steel supporting beam's last face is arranged in on steel sheet ground, a plurality of I-steel supporting beam pass the landing stage post welded fastening of length section and length both ends and both sides of single circular steel tube, are provided with an I-steel supporting beam under the width both ends of belt feeder, the intermediate position of two belt feeders.
5. The large diameter single tube trestle of claim 4, wherein: the pipeline cable bridge is positioned on the upper end circular surface of the single round steel pipe or the lower end circular surface below the steel plate ground; when the pipeline cable bridge is positioned on the lower end circular surface below the steel plate ground, the pipeline cable bridge is directly welded and fixed with the I-shaped steel support beam.
6. The large diameter single tube trestle of claim 1, wherein: the full length of the outer circle surface of the single round steel pipe is provided with annular stiffening ribs which are arranged at equal intervals, and the interval between every two adjacent stiffening ribs is equal to 0.8-1.2D and is less than or equal to 7.5 m.
7. The large diameter single tube trestle of claim 6, wherein: the whole length of the single round steel pipe is provided with a plurality of longitudinal stiffening ribs which are annularly arranged at equal angles, and the longitudinal stiffening ribs are connected with the annular stiffening ribs through welding seams; the circumferential stiffening rib adopts angle steel or channel steel, the longitudinal stiffening rib adopts a platform plate steel plate, a right-angle plate surface of the circumferential stiffening rib in the form of the angle steel is fixedly welded with the outer circular surface of the single round steel pipe, and the longitudinal stiffening rib is fixedly welded with the upper end surface of the other right-angle plate of the circumferential stiffening rib; the end faces of two wing plates of the annular stiffening rib in the channel steel form are welded and fixed with the outer circular face of the single round steel pipe, and the longitudinal stiffening rib is welded and fixed with the outer plate face of the web plate of the channel steel.
8. The large diameter single tube trestle of claim 1, wherein: the lighting ventilation window comprises a plurality of transparent lighting windows which are arranged at equal intervals and a non-powered ventilator, wherein the lighting windows are positioned on the circular surfaces at two sides of the single round steel pipe, and the included angle beta between the connecting line of the lighting windows and the circle center of the single round steel pipe and the horizontal plane is 25-40 degrees; and the top end round surface of the single round steel pipe is provided with an unpowered ventilator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017758.0U CN211254472U (en) | 2019-07-02 | 2019-07-02 | Large-diameter single-tube trestle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921017758.0U CN211254472U (en) | 2019-07-02 | 2019-07-02 | Large-diameter single-tube trestle |
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| CN211254472U true CN211254472U (en) | 2020-08-14 |
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| CN201921017758.0U Expired - Fee Related CN211254472U (en) | 2019-07-02 | 2019-07-02 | Large-diameter single-tube trestle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371699A (en) * | 2019-07-02 | 2019-10-25 | 中机国能电力工程有限公司 | A kind of major diameter single tube trestle |
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2019
- 2019-07-02 CN CN201921017758.0U patent/CN211254472U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371699A (en) * | 2019-07-02 | 2019-10-25 | 中机国能电力工程有限公司 | A kind of major diameter single tube trestle |
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Granted publication date: 20200814 |