CN215057487U - High-corrosion-resistance railway tunnel suspension post - Google Patents
High-corrosion-resistance railway tunnel suspension post Download PDFInfo
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- CN215057487U CN215057487U CN202120686081.0U CN202120686081U CN215057487U CN 215057487 U CN215057487 U CN 215057487U CN 202120686081 U CN202120686081 U CN 202120686081U CN 215057487 U CN215057487 U CN 215057487U
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Abstract
The utility model provides a high-corrosion-resistance railway tunnel suspension post, which comprises a suspension post body, a suspension post bottom plate and a plurality of rib plates; the suspension post body is a metal pipe structure with two closed ends, the suspension post bottom plate is fixedly arranged at the top end of the suspension post body in a continuous welding mode, and the rib plates are evenly arranged at the welding positions of the suspension post body and the suspension post bottom plate. The tunnel suspension post provided by the utility model has the advantages that the structure is optimized, the two ends of the suspension post body are sealed, and no process hole is arranged on the suspension post bottom plate at the inner side of the welding part of the suspension post body and the suspension post bottom plate, so that the problem that the inner wall of the metal pipe of the suspension post body is easy to corrode can be effectively solved, the service life is greatly prolonged, and the practicability is good; the zinc-nickel seeping layer is formed on the surface of the zinc-nickel seeping layer through a zinc-nickel seeping layer corrosion prevention technology, and the coating layer is coated on the outer side of the zinc-nickel seeping layer, so that the corrosion prevention effect of the tunnel hanging column is further optimized, the corrosion can be obviously slowed down, the maintenance cost is reduced, the product appearance is optimized, and the practical application prospect is wide.
Description
Technical Field
The utility model relates to a tunnel construction technical field of railway engineering, more specifically relates to a high anticorrosive railway tunnel davit.
Background
The tunnel suspension post is a construction supporting structural member widely used in tunnel construction. However, the conventional suspension post in the prior art has poor corrosion resistance and poor inertia effect on the inner wall of the steel pipe.
In the prior art, corrosion protection by coatings has become one of the most common and effective methods for preventing corrosion of steel components. In particular, corrosion resistant coatings often consist of three parts: the first layer is a primer coated on the surface of the metal to enhance the adhesion of the metal and the main coating; the second layer is a main coating, commonly used materials comprise coal tar enamel, petroleum pitch, polyethylene adhesive tape, epoxy resin, polyolefin coating and the like, and the latter two are more used abroad in recent years; the third layer is a wrap tie to maintain mechanical strength to prevent damage during shipping and construction.
At present, the steel component mainly adopts inorganic zinc-rich, epoxy zinc-rich and electric arc zinc-spraying coatings, but the corrosion prevention effect of the tunnel suspension post with the anti-corrosion layer which is provided with the openings at two ends and is prepared by the process method in the prior art can not meet the corrosion prevention requirement in the high-humidity environment.
In view of this, how to further optimize the structure of the tunnel suspension post and improve the anticorrosive coating on the basis of the prior art, and enhance the anticorrosive effect thereof is a key technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
To the technical problem that prior art exists, the utility model provides a high anticorrosive railway tunnel davit.
The utility model adopts the following technical scheme:
a high-corrosion-resistance railway tunnel suspension post comprises a suspension post body, a suspension post bottom plate and a plurality of rib plates.
Specifically, the davit body is the tubular metal structure of both ends confined, the davit bottom plate is fixed the setting on the top of davit body through continuous welded mode, and a plurality of gusset evenly sets up the splice of davit body and davit bottom plate.
In the technical scheme, the high-corrosion-resistance railway tunnel lifting column further comprises two anti-skidding blocks.
In detail, in the above technical solution, the two anti-slip blocks are symmetrically arranged at the outer side of the bottom end of the suspension post body.
In the technical scheme, the top end of the suspension column body is fixedly connected with the suspension column bottom plate in a sinking welding mode.
In a particular embodiment of the invention, the depth of the immersion weld is 7-10 mm.
In the technical scheme, the wall thickness of the metal pipe of the suspension post body is 4-12mm, and the thickness of the base plate of the suspension post is 8-20 mm.
In detail, in the above technical solution, the suspension post base plate is a rectangular metal plate with fixing holes, the fixing holes are disposed at the outer side of the welding position of the suspension post body and the suspension post base plate, and the number of the fixing holes is 4-8.
In the above technical scheme, the suspension post body is a metal tube structure with full-welded seal plates at two ends, and the vertical distance between the full-welded seal plate at the bottom end of the suspension post body and the bottom end part of the suspension post body is 9-15 mm.
Further, in the technical scheme, the high-corrosion-resistance railway tunnel suspension post further comprises a zinc-nickel infiltration layer arranged on the outer surface of the high-corrosion-resistance railway tunnel suspension post, and the thickness of the zinc-nickel infiltration layer is more than or equal to 65 μm.
Still further, in the above technical scheme, the high corrosion resistance railway tunnel suspension post further comprises a coating layer uniformly coated on the outer side of the zinc-nickel infiltrated layer, and the thickness of the coating layer is 20-60 μm.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the tunnel suspension post provided by the utility model has the advantages that the structure is optimized, the two ends of the suspension post body are sealed, and no process hole is arranged on the suspension post bottom plate at the inner side of the welding part of the suspension post body and the suspension post bottom plate, so that the problem that the inner wall of the metal pipe of the suspension post body is easy to corrode can be effectively solved, the service life is greatly prolonged, and the practicability is good;
(2) the utility model provides a tunnel davit forms zinc-nickel oozing layer anticorrosive coating on its surface through zinc-nickel oozing layer anticorrosion technology to at the even coating dope layer in the zinc-nickel oozing layer outside, thereby further optimized the anticorrosive effect of tunnel davit, can more obviously slow down the corrosion, greatly reduced maintenance cost, practical application prospect is wide.
Drawings
Fig. 1 is a schematic structural view of a high corrosion resistance railway tunnel suspension post provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a davit bottom plate in a high corrosion resistance railway tunnel davit provided by an embodiment of the present invention;
in the figure:
the hanging post comprises a hanging post body 1, a full-welded sealing plate 11, a hanging post bottom plate 2, a fixing hole 21, rib plates 3 and anti-skidding blocks 4.
Detailed Description
The present invention is further described in detail below with reference to specific embodiments so that those skilled in the art can more clearly understand the present invention.
The following examples are only for illustrating the present invention, but not for limiting the scope of the present invention.
Based on the specific embodiments in the present invention, under the condition that the person skilled in the art does not make creative work, all other embodiments obtained belong to the protection scope of the present invention.
In the embodiments of the present invention, all components are commercially available products known to those skilled in the art unless otherwise specified.
In the embodiments of the present invention, the technical means used are conventional means well known to those skilled in the art, if not specifically indicated.
As shown in figure 1, the embodiment of the utility model provides a high anticorrosive railway tunnel davit specifically includes davit body 1, davit bottom plate 2 and a plurality of gusset 3.
Specifically, in the embodiment of the utility model provides an in, davit body 1 is both ends confined tubular metal resonator structure, davit bottom plate 2 welds on davit body 1's top, just davit body 1 with welding between davit bottom plate 2 is continuous welding, and the welding leakproofness of welding department is good, a plurality of gusset 3 evenly sets up davit body 1 with davit bottom plate 2's welding department.
In detail, in the embodiment of the present invention, the rib plate 3 is fixedly connected to the davit body 1 and the davit bottom plate 2 by welding, and the rib plate 3 is continuously welded or intermittently welded to the davit body 1 and the davit bottom plate 2.
In detail, in the embodiment of the present invention, the wall thickness of the metal pipe of the suspension post body 1 is 4-12mm, and the specific material, thickness and length of the suspension post body 1 all depend on the requirements of the mechanics and other aspects of the practical application.
In detail, in the embodiment of the present invention, the thickness of the suspension post base plate 2 is 8-20mm, similarly, the specific material, thickness and size of the suspension post base plate 2 all depend on the needs of the mechanics and other aspects of the practical application, and the shape of the suspension post base plate 2 may be circular, but is rectangular in most cases.
The utility model discloses an among the concrete implementation mode, through inciting somebody to action the both ends of davit body 1 are sealed, simultaneously, do not davit body 1 with the inboard of the welding department of davit bottom plate 2 set up the fabrication hole on the davit bottom plate 2, can avoid the inside wall contact perishable material of the tubular metal resonator of davit body 1 that corrodes most easily in practical application, thereby effectively solve the perishable problem of tubular metal resonator inside wall of davit body 1, and then prolonged its live time greatly, the practicality effect is excellent.
Specifically, in the embodiment of the utility model, in order to satisfy practical application's needs, fixed orifices 21 have been seted up on davit bottom plate 2 for with this tunnel davit with treat that the support article is firmly connected, avoid droing.
In detail, in the embodiment of the present invention, the fixing holes 21 are disposed at the outer side of the welding position of the davit body 1 and the davit bottom plate 2, the number of the fixing holes 21 is 4-8, and the number, size and disposition position of the fixing holes 21 all depend on the requirement of firm fixing connection in practical application; in addition, as shown in fig. 2, the fixing holes 21 are formed by transverse and longitudinal strip-shaped holes, so that the adjusting allowance can be increased, and the field installation can be facilitated.
As shown in fig. 2, in a preferred embodiment of the present invention, in order to improve the sealing performance and the firmness of the welding position of the davit body 1 and the davit bottom plate 2, the top end of the davit body 1 is fixedly connected with the davit bottom plate 2 by a welding method, the center part of the davit bottom plate 2 is a blind hole milled on the bottom surface of the davit bottom plate 2 before welding, and the size of the blind hole is equal to the outer diameter of the davit body 1.
In detail, in an embodiment of the present invention, the depth of the submerged weld is 7-10 mm.
In a preferred embodiment of the present invention, in order to reduce the sliding of the bottom of the tunnel suspension post on the ground, the bottom end sealing structure of the suspension post body 1 is optimized, specifically, the two ends of the suspension post body 1 are sealed by the full-weld sealing plates 11, and the vertical distance from the bottom end of the suspension post body 1 to the full-weld sealing plates 11 at the bottom end of the suspension post body 1 is 9-15 mm.
The utility model discloses an in another preferred embodiment, the railway tunnel davit still includes 2 non slipping spur 4, 2 non slipping spur 4 symmetry on same height sets up the bottom outside of davit body 1, just non slipping spur 4's size of a dimension is 16 x 20 mm.
Furthermore, in order to improve the anticorrosion effect of the tunnel hanging post, the tunnel hanging post after being processed and welded is used as an integral structure, a zinc-nickel infiltration layer anticorrosion layer (not shown in the attached drawing) is formed on the surface of the tunnel hanging post by adopting a zinc-nickel infiltration layer anticorrosion technology, and the thickness of the zinc-nickel infiltration layer is more than or equal to 65 mu m.
In detail, a zinc-nickel seeping layer anticorrosive layer is formed on the surface of the tunnel hanging column, and a neutral salt spray test is carried out by referring to GB/T10125-2012 'artificial atmosphere corrosion test-salt spray test', and the result shows that the zinc-nickel seeping layer anticorrosive layer can not be corroded for 1200 hours.
Further, in order to improve the appearance effect of the tunnel hanging pillar and further optimize the anti-corrosion effect of the tunnel hanging pillar, a coating layer is uniformly coated on the outer side of the zinc-nickel seeping layer, and the thickness of the coating layer is 20-60 mu m.
Will the embodiment of the utility model provides a tunnel davit that prepares is applied to fuping railway and strides sea district section-hai men tunnel and accomplishes the installation and try to hang, through probation for one year of phase, shows as a result:
(1) the tunnel suspension post prepared by the embodiment of the utility model has higher hardness, better wear resistance, less wear of the product in the transportation and installation processes and good overall appearance quality;
(2) in the trial hanging period, the tunnel hanging column prepared by the embodiment of the utility model has no corrosion for 1 year so far, and the maintenance cost is reduced for the unit;
(3) the embodiment of the utility model provides a tunnel davit threaded fastener who prepares does not need regular fat liquoring maintenance, has reduced manual work and material cost.
It should be noted that the above embodiments are only for further illustration and description of the technical solution of the present invention, and are not intended to limit the technical solution of the present invention, and the method of the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A high-corrosion-resistance railway tunnel suspension post is characterized in that,
the lifting column comprises a lifting column body, a lifting column bottom plate and a plurality of rib plates;
the suspension post body is of a metal pipe structure with two closed ends, the suspension post bottom plate is fixedly arranged at the top end of the suspension post body in a continuous welding mode, and the rib plates are uniformly arranged at the welding positions of the suspension post body and the suspension post bottom plate.
2. The high corrosion resistance railway tunnel suspension post of claim 1,
the anti-skid device also comprises two anti-skid blocks;
the two anti-skidding blocks are symmetrically arranged on the outer side of the bottom end of the hanging column body.
3. The high corrosion resistance railway tunnel suspension post of claim 1,
the top end of the suspension post body is fixedly connected with the suspension post bottom plate in a sinking welding mode.
4. The high corrosion resistance railway tunnel suspension post of claim 3,
the depth of the sinking welding is 7-10 mm.
5. The high corrosion resistance railway tunnel suspension post of claim 1,
the wall thickness of the metal pipe of the suspension post body is 4-12 mm;
the thickness of the bottom plate of the hanging column is 8-20 mm.
6. The high corrosion resistance railway tunnel suspension post of claim 5,
the suspension post bottom plate is a rectangular metal plate with fixing holes, the fixing holes are formed in the outer side of the welding position of the suspension post body and the suspension post bottom plate, and the number of the fixing holes is 4-8.
7. The high corrosion resistance railway tunnel suspension post of claim 1,
the suspension post body is of a metal tube structure with full-welded seal plates at two ends, and the vertical distance between the full-welded seal plate at the bottom end of the suspension post body and the bottom end part of the suspension post body is 9-15 mm.
8. The high corrosion resistance railway tunnel suspension post of any one of claims 1 to 7,
the coating also comprises a zinc-nickel infiltration layer arranged on the outer surface of the coating, wherein the thickness of the zinc-nickel infiltration layer is more than or equal to 65 mu m.
9. The high corrosion resistance railway tunnel suspension post of claim 8,
the coating layer is uniformly coated on the outer side of the zinc-nickel seeping layer, and the thickness of the coating layer is 20-60 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686081.0U CN215057487U (en) | 2021-04-02 | 2021-04-02 | High-corrosion-resistance railway tunnel suspension post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686081.0U CN215057487U (en) | 2021-04-02 | 2021-04-02 | High-corrosion-resistance railway tunnel suspension post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215057487U true CN215057487U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120686081.0U Active CN215057487U (en) | 2021-04-02 | 2021-04-02 | High-corrosion-resistance railway tunnel suspension post |
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| CN (1) | CN215057487U (en) |
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2021
- 2021-04-02 CN CN202120686081.0U patent/CN215057487U/en active Active
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