CN219032791U - Single rail beam and support structure of straddle type rack rail - Google Patents
Single rail beam and support structure of straddle type rack rail Download PDFInfo
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- CN219032791U CN219032791U CN202222527157.2U CN202222527157U CN219032791U CN 219032791 U CN219032791 U CN 219032791U CN 202222527157 U CN202222527157 U CN 202222527157U CN 219032791 U CN219032791 U CN 219032791U
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Abstract
The utility model relates to a straddle type toothed rail single-rail beam and a support structure, which comprises a single-rail beam body and toothed rails, wherein the toothed rails are arranged on the left side and the right side of the top of the single-rail beam body, and the single-rail beam body is of an integrated or segment assembly structure. The straddle type toothed rail single rail beam support structure comprises a bridge pier and a straddle type toothed rail single rail beam, wherein a spherical fixed support is adopted at the downhill end of a single rail beam body, and a sliding support is adopted at the uphill end. Two slope upper end limiting brackets and two slope lower end limiting brackets are arranged on the bridge pier, the downhill end of the single-rail beam body is positioned between the two slope lower end limiting brackets, and the uphill end of the single-rail beam body is positioned between the two slope upper end limiting brackets; limiting pins are arranged on the upper-end limiting support and the lower-end limiting support in a threaded manner, and are arranged in corresponding limiting holes, so that the single-rail beam body can be limited left and right and up and down, and the longitudinal movement of the single-rail beam body is not influenced. The climbing capacity of the straddle type monorail train can be greatly enhanced, and the length of a line can be reduced.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to a straddle type rack single rail beam and a support structure.
Background
Cloud track is a monorail system developed by bidi. The track in the monorail system can be built on a central road partition or a narrow street, does not occupy the road surface independently, and belongs to a medium-traffic urban rail traffic system with the energy approaching to the subway system.
Chinese patent document CN212373379U discloses a bogie for a straddle type monorail and a railway vehicle having the same, on which a traveling wheel and a guide wheel are mounted. In the running process of the straddle type monorail vehicle, the running wheels are contacted with the upper surface of the rail beam, and the guide wheels are contacted with the two side surfaces of the rail beam, so that the stable running of the rail vehicle is ensured.
The existing cloud rail train only can run on a small-gradient single rail beam (maximum gradient of 10%) by using a rubber wheel as a running driving wheel and relying on the principle of friction force. To climb to high altitudes, long routes need to be built.
In addition, the single rail beam of the straddle-type toothed rail can be influenced by thermal expansion and contraction, so that beam gaps are reserved on the rail bridge. On a flat slope section, the existing straddle type toothed rail monorail girder can basically adapt to the change of thermal expansion and cold contraction; however, on a ramp line, a sliding component force is generated by the dead weight of the straddle-type toothed rail single rail beam, and then the beam seam is influenced, so that the adaptability to thermal expansion and cold contraction is reduced.
Disclosure of Invention
The application provides to stride seat formula rack single rail roof beam and support structure in order to solve above-mentioned technical problem, and the current limited problem of cloud rail train climbing ability of primary solution, secondly solve the problem of the adaptation ability of expend with heat and contract with cold on the ramp circuit again.
The application is realized by the following technical scheme:
the straddle type toothed rail single-rail beam comprises a single-rail beam body and toothed rails, wherein the toothed rails are arranged on the left side and the right side of the top of the single-rail beam body, and the side surfaces of the toothed rails are tooth surfaces; the monorail beam body is of an integrated structure or a segment spliced structure.
Optionally, the left side and the right side of the beam end bottom of the monorail beam body are respectively provided with a widening part which is integrally manufactured, and the limiting hole is arranged on the widening part.
Alternatively, the width of the widened portion is 0.8m, the width of the widened portion is 0.25m, and the height of the widened portion is 0.25m-0.5m, and the length of the monorail beam body is 9.98 and m, the height of the monorail beam body is 1.5m, and the width of the monorail beam body is 1m.
Optionally, steps matched with the toothed rail are arranged on two sides of the top of the monorail girder body, the toothed rail is arranged on the steps, bolt holes for connecting the toothed rail are formed in the top surface of the steps, and the width of the steps is smaller than that of the toothed rail.
Optionally, the left side and the right side of the beam end bottom of the monorail beam body are provided with limiting holes, and the limiting holes are longitudinal strip holes.
The application provides a stride a formula rack monorail girder support structure, including pier and striding a formula rack monorail girder, the both ends of monorail girder roof beam body are supported respectively on two piers, are equipped with the support between the monorail girder roof beam body and the pier, and the downhill path end of the monorail girder roof beam body adopts ball-type fixed support, and the uphill path end adopts the support that slides.
In particular, liang Fengkuan mm, the longitudinal clearance of the tooth rail is 5mm, and the tooth peaks of the tooth rail are continuous. Optionally, the spherical fixed support is mounted on a horizontal cushion, the sliding support is mounted on an inclined cushion, and the horizontal cushion and the inclined cushion are mounted on the top surface of the pier.
Optionally, two slope upper end limiting brackets and two slope lower end limiting brackets are arranged on the bridge pier, the downhill end of the single-rail beam body is positioned between the two slope lower end limiting brackets, and the uphill end of the single-rail beam body is positioned between the two slope upper end limiting brackets;
and limiting pins matched with limiting holes on the single-rail beam body are arranged on the upper-end limiting support and the lower-end limiting support of the slope, and the limiting pins are correspondingly inserted into the limiting holes and can longitudinally move along the limiting holes.
Compared with the prior art, the application has the following beneficial effects:
1, the rack is additionally arranged on the single-rail beam of the existing straddle-type rack, and gears matched with the rack are arranged on the existing straddle-type monorail train when the single-rail beam is used, and the climbing capacity of the straddle-type monorail train can be greatly enhanced through double-wheel driving of the gears and the rubber wheels; after the climbing capacity is improved, the climbing to the same altitude can reduce the length of the line;
2, the downhill end of the straddle type toothed rail single rail beam adopts a spherical fixed support, the uphill end adopts a sliding support, and the straddle type toothed rail single rail beam is stable in installation and can longitudinally stretch and retract, so that the straddle type toothed rail single rail beam can adapt to the phenomena of thermal expansion and cold contraction;
3, the limiting strip hole is formed in the single-rail beam body, the corresponding left and right limiting brackets are installed on the bridge pier, and limiting pins on the limiting brackets are installed in the limiting strip hole, so that the single-rail beam body can be limited left and right and up and down, and meanwhile, the longitudinal movement of the single-rail beam body is not influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model.
FIG. 1 is a three-dimensional view of a single rail beam of a straddle-type rack in an embodiment;
FIG. 2 is a dimension marking view of a single rail beam of a straddle-type rack rail in an embodiment;
FIG. 3 is a cross-sectional view of the widened portion of the embodiment;
FIG. 4 is a three-dimensional view of an integral single rail beam body in an embodiment;
FIG. 5 is a three-dimensional view of a segment-spliced single rail beam body in an embodiment;
FIG. 6 is a side view of a straddle-type toothed rail monorail girder support structure of an embodiment;
FIG. 7 is a cross-sectional view of a straddle-type toothed rail monorail girder support structure in an embodiment;
FIG. 8 is a construction flow diagram of a straddle-type rack monorail girder support structure in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments. It will be apparent that the described embodiments are some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision. It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships conventionally put in place when the inventive product is used, or directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the straddle-type rack single-rail beam disclosed in the embodiment comprises a single-rail beam body 1 and a rack 2, wherein the side surface of the rack 2 is a tooth surface. The rack 2 is arranged on the left side and the right side of the top of the single-rail beam body 1, the left side and the right side of the bottom of the beam end of the single-rail beam body 1 are provided with limiting holes 4, and the limiting holes 4 are longitudinal strip holes.
It is worth noting that the rack 2 is a steel rack.
In one possible design, the left and right sides of the beam end bottom of the single-rail beam body 1 are respectively provided with a widening part 3 which is integrally manufactured, the limiting holes 4 are arranged on the widening part 3, and the widening part 3 is provided with at least two limiting holes 4.
It is worth to say that the sizes of the monorail girder body 1, the toothed rail 2, the widened part 3 and the limiting hole 4 are reasonably set according to the needs.
In one possible design, the beam collapses 10 meters, and 7mm-8mm beam length changes can occur in consideration of weather temperature effects, so that the length of the single-rail beam body 1 is controlled within 10m, and the influence on the toothed rail 2 is within an allowable range.
In one possible design, as shown in fig. 2 and 4, the single rail beam body 1 has a length L of 9.98 m as a unitary structure.
In one possible design, the single rail beam body 1 has a height H of 1.5m and a width D1 of 1m. The widening 3 has a length l of 0.8m, a width of 0.25m and a height of 0.5m.
In one possible design, as shown in fig. 5, the single rail beam body 1 is a segment-spliced structure, and two segments of 4.99m long segments can be spliced to form the single rail beam body 1 with the length of 9.98 m.
In one possible design, the toothed rail 2 comprises a plurality of toothed rails 21, the tooth pitch of the toothed rails 21 being 62.8mm and the tooth thickness being 31.4mm. The tooth rail 21 is fixedly connected with the monorail girder body 1 through bolts.
Optionally, the tooth rail 21 is 995mm long, 10m long single rail beam body 1 adopts 10 pairs of tooth rail 21, the longitudinal clearance of tooth rail 21 is 5mm, thermal expansion and cold contraction are prevented, and the straight curved beam can meet the installation requirement and can be used for substituting curves.
In one possible design, as shown in fig. 3, the widening part 3 includes a broad side, a first high side, a second high side and an arc side, the bottoms of the first high side and the second high side are respectively connected with two ends of the broad side, the tops of the first high side and the second high side are respectively connected with two ends of the arc side, the second high side is located at one side far away from the single rail beam body 1, and the height of the second high side is larger than that of the first high side. Optionally, the height h1 of the first high side is 0.5m, the height h2 of the second high side is 0.25m, and the width d of the wide side is 0.25m. So that the width of the single rail beam body 1 at the widening 3 is 1.5m.
In one possible design, as shown in fig. 2, 4 and 5, steps 11 matched with the toothed rail 2 are arranged on two sides of the top of the single-rail beam body 1, the toothed rail 2 is arranged on the steps 11, and bolt holes for connecting the toothed rail 2 are formed in the top surface of the steps 11. The width of the step 11 is smaller than the width of the rack 2. Alternatively, when the width D1 of the monorail girder body 1 is 1m, the width D2 of the straddle-type toothed rail single-rail girder at the toothed rail 2 is 1.1m.
As shown in fig. 6, the straddle-type toothed rail monorail beam support structure disclosed in the embodiment comprises bridge piers 5 and a straddle-type toothed rail single rail beam, wherein two ends of a single rail beam body 1 are respectively supported on two bridge piers 5, and a support is arranged between the single rail beam body 1 and the bridge piers 5.
Two slope upper end limiting brackets 81 and two slope lower end limiting brackets 82 are arranged on the bridge pier 5, the downhill end of the single-rail beam body 1 is positioned between the two slope lower end limiting brackets 82, and the uphill end of the single-rail beam body 1 is positioned between the two slope upper end limiting brackets 81.
The limiting support 81 at the upper end of the slope and the limiting support 82 at the lower end of the slope are provided with limiting pins 83 in a threaded manner, the limiting pins 83 are matched with the limiting holes 4 at the beam ends of the single-rail beam body 1, the limiting pins 83 are correspondingly inserted into the limiting holes 4, and under the action of a certain force, the limiting pins 83 can longitudinally move along the limiting holes 4 but cannot move left and right and up and down. The setting of spacing support, spacer pin 83 and spacing hole 4 not only can control, upper and lower spacing to single rail roof beam body 1, does not influence the longitudinal movement of single rail roof beam body 1 simultaneously.
The stopper pin 83 has an external thread structure.
In one possible design, on the ramp line, as shown in fig. 7, the downhill end of the single rail beam body 1 adopts a ball-type fixed support 62 which can realize a certain angle adjustment, and the uphill end adopts a sliding support 61. The structure of the ball-type fixing support 62 and the sliding support 61 is well known in the art and will not be described here again.
In one possible design, the ball mount 62 is a ball mount that can achieve 30 ° angular adjustment over a 500%o ramp line.
In one possible design, the ball-type anchor mount 62 is mounted on a horizontal bolster 72, the horizontal bolster 72 being mounted on the top surface of the pier 5; the sliding support 61 is mounted on a bevel pad 71, and the bevel pad 71 is mounted on the top surface of the pier 5. Specifically, the sliding support 61 is a rectangular rubber block, two rectangular grooves matched with the sliding support 61 are formed in the bottom surface of one end of the monorail beam body 1, rectangular grooves matched with the sliding support 61 are formed in the inclined surface of the inclined surface cushion stone 71, and the sliding support 61 is arranged in the rectangular grooves of the monorail beam body 1 and the inclined surface cushion stone 71, so that the monorail beam body 1 can longitudinally move along the bridge pier 5 for a certain distance, and the monorail beam body adapts to thermal expansion and cold contraction changes.
In one possible design, liang Fengkuan mm, the longitudinal clearance of the tooth rail 21 is 5mm and the peaks of the tooth rail are continuous. Alternatively, 10 pairs of tooth rails 21 are adopted for the 10 m-long monorail girder body 1, and 10 pairs of tooth rails 21 span 10m, and 16 tooth peaks are adopted for each pair; correspondingly, each tooth rail 21 has 8 tooth peaks.
In one possible design, the downhill end of the single rail beam body 1 has two ball-type fixed abutments 62 and the uphill end has two sliding abutments 61.
As shown in fig. 8, the construction method of the straddle-type rack monorail beam support structure disclosed in the embodiment includes the following steps:
s1, preparing construction;
s2, manufacturing a single-rail beam body 1;
s3, accurately mounting the toothed rail 2 and the upper part of the spherical fixed support 62 on the single-rail beam body 1 in advance in a beam storage field;
s4, transporting the straddle type rack rail single rail beam to the site;
s5, accurately positioning the construction bridge pier 5 according to a span of 10 meters;
s6, accurately positioning the prefabricated filler stones and the lower parts of the spherical fixed supports 62 on the bent cap;
s7, erecting a straddle type toothed rail single-rail beam by adopting an automobile crane or a bridge girder erection machine;
s8, accurately positioning and fixing the straddle type toothed rail monorail beam;
s9, adjusting a beam span and a toothed rail;
s10, correspondingly arranging the limiting pins 83 into the limiting holes 4;
s10, installing an overhaul channel, a third rail power supply device and the like;
s11, installing a line identification mark;
s12, finishing the construction.
When in use, the existing straddle type monorail train is provided with a gear matched with the toothed rail 2, the climbing capacity of the straddle type monorail train can be greatly enhanced through the double-wheel driving of the gears and the rubber wheels.
It is worth noting that the gear thickness should be greater than the thickness of the toothed rail 2, meeting the no-load and full-load requirements of the train. In one possible design, the train body is 2.8m wide and has multiple carriages; the thickness of the gear is 140mm, and the modulus is 20; the toothed rail 2 is 85mm thick.
The foregoing detailed description has set forth the objectives, technical solutions and advantages of the present application in further detail, but it should be understood that the foregoing is only illustrative of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.
Claims (10)
1. Stride seat formula rack single rail roof beam, its characterized in that: the single-rail beam comprises a single-rail beam body (1) and toothed rails (2), wherein the toothed rails (2) are respectively arranged on the left side and the right side of the top of the single-rail beam body (1), and the side surfaces of the toothed rails (2) are tooth surfaces;
limiting holes (4) are formed in the left side and the right side of the bottom of the beam end of the single-rail beam body (1), and the single-rail beam body (1) is of an integrated structure or a segment assembly structure.
2. The straddle type rack rail single rail beam according to claim 1, wherein: the limiting holes (4) are longitudinal strip holes.
3. The straddle-type rack rail single rail beam according to claim 1 or 2, wherein: the left side and the right side of the bottom of the beam end of the single-rail beam body (1) are respectively provided with a widening part (3) which is integrally manufactured, and the limiting hole (4) is arranged on the widening part (3).
4. A straddle-type rack rail single-rail beam according to claim 3, characterized in that: the length of the single-rail beam body (1) is 9.98 m, the height is 1.5m, and the width is 1m.
5. The straddle type rack rail single rail beam according to claim 4, wherein: the widening (3) is 0.8m long, 0.25m wide and 0.25m-0.5m high.
6. A straddle-type rack rail single-rail beam according to claim 1, 4 or 5, characterized in that: the two sides of the top of the monorail girder body (1) are provided with steps (11) which are matched with the toothed rail (2), the toothed rail (2) is arranged on the steps (11), the top surface of each step (11) is provided with bolt holes for connecting the toothed rail (2), and the width of each step (11) is smaller than that of the toothed rail (2).
7. Stride a formula rack monorail girder support structure, including pier (5), its characterized in that: the bridge further comprises a straddle-type toothed rail single-rail beam as claimed in any one of claims 1 to 6, wherein two ends of the single-rail beam body (1) are respectively supported on two bridge piers (5), and a support is arranged between the single-rail beam body (1) and the bridge piers (5); the downhill end of the single-rail beam body (1) adopts a spherical fixed support (62), and the uphill end adopts a sliding support (61).
8. The straddle type rack rail monorail girder support structure of claim 7, wherein: the spherical fixed support (62) is arranged on the horizontal cushion stone (72), the sliding support (61) is arranged on the inclined cushion stone (71), and the horizontal cushion stone (72) and the inclined cushion stone (71) are arranged on the top surface of the bridge pier (5).
9. A straddle type rack rail monorail girder mount construction according to claim 7 or 8, wherein: two slope upper end limiting brackets (81) and two slope lower end limiting brackets (82) are arranged on the bridge pier (5), the downhill end of the single-rail beam body (1) is positioned between the two slope lower end limiting brackets (82), and the uphill end of the single-rail beam body (1) is positioned between the two slope upper end limiting brackets (81);
limiting pins (83) matched with limiting holes (4) in the single-rail beam body (1) are arranged on the upper-slope limiting support (81) and the lower-slope limiting support (82), the limiting pins (83) are in threaded connection with the upper-slope limiting support (81) and the lower-slope limiting support (82), and the limiting pins (83) are correspondingly inserted into the limiting holes (4) and can longitudinally move along the limiting holes (4).
10. A straddle type rack rail monorail girder mount construction according to claim 7 or 8, wherein: liang Fengkuan 20mm, the longitudinal clearance of the rack bar (21) is 5mm, and the tooth peak of the rack (2) is continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222527157.2U CN219032791U (en) | 2022-09-23 | 2022-09-23 | Single rail beam and support structure of straddle type rack rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222527157.2U CN219032791U (en) | 2022-09-23 | 2022-09-23 | Single rail beam and support structure of straddle type rack rail |
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| Publication Number | Publication Date |
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| CN219032791U true CN219032791U (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222527157.2U Active CN219032791U (en) | 2022-09-23 | 2022-09-23 | Single rail beam and support structure of straddle type rack rail |
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| CN (1) | CN219032791U (en) |
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