CN212560954U

CN212560954U - Double-anchoring elastic split rail panel fastener for medium-low speed magnetic levitation traffic

Info

Publication number: CN212560954U
Application number: CN202021832534.8U
Authority: CN
Inventors: 田苗盛; 王书卫; 曾国保; 杨其振; 刘道通; 刘倩; 滕一陛; 陈敦昌; 张旭久; 李建斌; 李强
Original assignee: China Railway Design Corp
Current assignee: China Railway Design Corp
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-02-19
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a dual anchor elasticity split rail row fastener of well low-speed magnetic levitation traffic, this fastener are applicable to interior line of field section storehouse, steel sleeper, stand basis section, and I shape steel sleeper and iron tie plate are as an organic whole through being symmetrical in I shape steel sleeper connected system firm connection, and the iron tie plate passes through anchoring system and lower part stand basis connection as an organic whole, realizes the dual firm connection of I shape steel sleeper and lower part collar tie beam basis. The steel sleeper fastening device has the advantages that the iron base plate is fixed on the base of the stand column by the anchoring system, the steel sleeper of the track panel is connected with the iron base plate by the connecting system, the steel sleeper is fastened while the iron base plate is fixed by the anchoring system, double fastening of the track panel is achieved, and vertical and longitudinal adjustability of the fastener is good; the dual fastening is safer, stably locks the track panel, and ensures that the track panel bears the action of bending moment, shearing force and axial force. The fastener is firm in connection, strong in control force of the geometrical state of the rail, good in connection between the steel sleeper and the foundation rigidity of the upright column, capable of providing good elasticity and insulativity and convenient to replace, maintain and repair parts.

Description

Double-anchoring elastic split rail panel fastener for medium-low speed magnetic levitation traffic

Technical Field

The utility model relates to a well low-speed magnetism floats traffic track, in particular to dual anchor elasticity split's section of track fastener.

Background

The medium-low speed magnetic levitation traffic is a novel rail traffic system, has the characteristics of strong climbing capacity, small turning radius, low noise, small vibration, energy conservation, environmental protection, low construction cost and the like, can well overcome the defects of wheel-rail type rail traffic, and is suitable for passenger transportation with medium transportation volume in urban districts, close-distance urban rooms and the like.

The medium-low speed maglev train adopts a suspension frame to carry out rail-embracing operation, utilizes the mutual attraction of a vehicle-mounted electromagnetic device and a rail row component on a rail to suck and suspend the train upwards on the rail, and provides train traction power through a linear motor. The magnetic levitation track is used as a basic structure for supporting and guiding the train to run, and the stability and the reliability of the magnetic levitation track are very important to a train levitation control system and the running safety of the train.

The track panel fastener is an important component of a track structure, firmly connects a track panel with a supporting structure, keeps the geometric shape and position of the track panel on a lower foundation, ensures the installation precision and the adjustability of the track panel, bears the self weight, the driving force, the guiding force and the braking force of a train and transmits the force to a foundation structure. In addition, the elasticity of the medium-low speed magnetic levitation track system is almost entirely dependent on the fastener system. Therefore, the structural form and the performance of the track panel fastener are key factors influencing the stability and the reliability of the medium-low speed magnetic levitation track system, and the structural form of the fastener is very important for ensuring the quality and the efficiency of track laying construction.

The I-shaped steel sleeper used by the medium-low speed magnetic suspension traffic track panel takes a long steel sleeper as a main part, and a short steel sleeper is adopted in a part inside a field section warehouse. The short steel sleeper section is adopted, a neutral position is formed in the middle of the track panel to facilitate the process operation, and the F track directly bears the load of the train at the moment. According to structural mechanics analysis, track panel fasteners adopted by short steel sleeper sections need to overcome bending moment, axial force, shearing force and the like generated when vehicles pass through.

In the vehicle section garage, the lower part of the track panel is in a base form such as a column or a ring beam. However, the external dimension of the upright column is restricted by the process requirements, the upright column dimension in a general parking train inspection section is larger, and the passing requirement of the maintainer is only required to be met. However, in the application library, the overhaul process of the process is complex, the large-size upright posts directly limit the overhaul space, and in order to meet the requirements of the process and the building, new fasteners need to be developed.

The medium-low speed magnetic suspension traffic track panel fastener is divided into two major categories of an elastic split type fastener and an elastic non-split type fastener, wherein the elastic split type fastener fixes the track panel and the lower foundation through two groups of bolt assemblies to realize the connection of the track panel and the lower foundation. The effect of this kind of fastener is can realize the vertical, horizontal, vertical three-dimensional regulation of section of track. However, the external dimension of the existing medium-low speed magnetic suspension traffic track fastener is too large, the existing medium-low speed magnetic suspension traffic track fastener cannot adapt to the size of the foundation under the rail of the section of the in-warehouse maintenance line, and the operation of vehicle maintenance machines is limited, so that a novel fastener needs to be developed all the time to adapt to the working conditions. The elastic non-separating fastener directly fixes the flange of the steel sleeper and the elastic base plate on the lower foundation through a group of bolts. The fastener has the advantages of firm connection between the track panel and the foundation, strong control force of the geometric state of the track, simple structure, convenient replacement, maintenance and repair, lower manufacturing cost and the like, but the fastener is generally only suitable for a section of a main track.

Disclosure of Invention

The utility model aims to solve the technical problem that a can be applicable to the different sleeper types of maintenance line stand foundation area section is provided, have sufficient intensity, withholding force, stability, proper amount elasticity and section of track adjustment ability simultaneously, and install and maintain the convenient well low-speed magnetism of change and float traffic section of track fastener.

The utility model adopts the technical proposal that the fastener is suitable for the inner line of a field section warehouse, a steel sleeper and a stand column foundation section, and fixes the magnetic levitation track panel on the stand column foundation, comprising an iron base plate, an anchoring system external member, a connecting system external member and an I-shaped steel sleeper; the I-shaped steel sleeper and the iron base plate are firmly connected into a whole through a connecting system symmetrical to the I-shaped steel sleeper, the iron base plate is connected with the lower portion upright column foundation into a whole through an anchoring system, and the anchoring system also restrains the flange of the steel sleeper so as to realize double firm connection of the I-shaped steel sleeper and the lower portion ring beam foundation.

The iron base plate main body is of a polygonal structure; the iron base plate is symmetrically provided with preformed holes for pouring the lower foundation grouting material; the external dimension of the lower upright column is consistent with the dimension of the iron backing plate.

The anchoring system kit comprises an anchoring bolt, a first flat washer, a heavy-duty spring washer and an insulating sleeve; the anchoring bolt is a hexagon bolt made of Q235, penetrates through the first flat washer, the heavy spring washer, the iron base plate, the elastic base plate and the height-adjusting base plate in sequence and is fixedly connected with the insulating sleeve, and the insulating sleeve is poured and embedded into the upright foundation after the rail laying process; the first flat washer and the heavy washer are arranged between the anchor bolt and the iron base plate; an elastic base plate and a height-adjusting base plate are arranged between the iron base plate and the upright post.

The iron base plate is axially symmetrically provided with two convex channels and two concave channels; the anchoring bolt penetrates through the convex channel and is connected with the nylon sleeve, and the nylon sleeve is directly poured in the lower column foundation; the concave channel enables the hexagon bolt acting in the concave channel to slide and be fixed with the steel sleeper.

And the I-shaped steel sleeper bottom plate is symmetrically provided with four open bolt holes along the line direction.

The elastic backing plate is provided with a groove and a bolt hole through which an anchoring system passes, the elastic backing plate is made of polyester, and the height-adjusting backing plate is made of polyethylene.

The utility model has the advantages that the track panel and the lower foundation are respectively fastened, namely the iron base plate is fixed on the stand column foundation through the anchoring system, the track panel steel sleeper is connected with the iron base plate through the connecting system, and the anchoring system also plays a role in fastening the steel sleeper while fixing the iron base plate, thereby realizing double fastening of the track panel, and the vertical and longitudinal adjustability of the fastener is good; the double fastening is safer, the track panel is stably locked, and the track panel is guaranteed to bear the action of bending moment, shearing force and axial force. Two groups of connecting bolts are respectively adopted on two sides of the I-shaped steel sleeper, so that the steel sleeper can be ensured to overcome the action of bending moment, axial force and shearing force, and the stability of the track panel is kept; the steel sleeper is in direct contact with the iron base plate, so that the rail panel can be conveniently and freely stretched; the fastener is provided with grouting holes reserved at opposite corners of the iron base plate, so that grouting materials can be conveniently injected below the fastener; the size of the iron backing plate is consistent with the external size of the lower upright column, so that the space is saved; the fastener is firm in connection, strong in control force of the geometric state of the rail, good in connection between the steel sleeper and the foundation rigidity of the stand column, capable of providing good elasticity and insulativity, mature and stable in parts and convenient to install, replace, maintain and repair.

Drawings

FIG. 1 is an assembly view of the fastener for a medium-low speed magnetic levitation traffic track panel of the present invention;

FIG. 2a is a cross-sectional view of a medium-low speed magnetic levitation transportation track panel;

FIG. 2b is a top view of a bottom plate of a steel sleeper of the medium-low speed magnetic levitation traffic track panel;

fig. 3a, 3b and 3c are top, side and front views of the iron tie plate of the present invention;

fig. 4a and 4b are front and top views of the elastic pad of the present invention;

fig. 5a and 5b are front and top views of the heightening mat of the present invention.

In the figure:

1. iron backing plate 2, anchor bolt 3, elastic backing plate 4, heightening backing plate

5. First flat washer 6, heavy spring washer 7, hexagon bolt 8, nut

9. Second flat washer 10, spring washer 11, nylon sleeve 12, I-shaped steel sleeper

13. Column 14, F rail 15, open bolt hole 16, circular bolt hole

17. Male channels 18, female channels 19, preformed holes.

Detailed Description

The invention will be described in further detail with reference to the following drawings and embodiments:

as shown in fig. 1 to 5b, the utility model relates to a double-anchoring elastic split rail fastening for medium-low speed magnetic levitation traffic, which comprises an iron base plate 1, an anchoring system, a connecting system and an i-shaped steel sleeper 12; the I-shaped steel sleeper 12 and the iron base plate are firmly connected into a whole through a connecting system symmetrical to the I-shaped steel sleeper 12, the iron base plate 1 is connected with the lower portion upright column foundation into a whole through an anchoring system, and double firm connection of the I-shaped steel sleeper 12 and the lower portion ring beam foundation is achieved.

As shown in fig. 3a to 3c, the main body of the iron backing plate 1 is a polygonal structure; the iron base plate is symmetrically provided with preformed holes 19, the preformed holes are mainly used for realizing the pouring of the lower foundation grouting material, and the overall dimension of the whole lower upright post is consistent with that of the iron base plate. The main purpose is to provide more overhaul space and to achieve the most economical and reasonable space size of the upright column. Two convex channels 17 and two concave channels 18 are axially symmetrically arranged on the iron base plate 1; the anchor bolt 2 penetrates through the convex channel 17 and is connected with the nylon sleeve 11, and the nylon sleeve is directly poured in the lower upright column foundation 13, so that the iron base plate 1 is anchored; the female channels 18 allow the hexagon bolts acting in the female channels to slide and be fixed with the steel sleeper 12. The steel sleeper 12 and the F rail 14 are connected through bolts to form a rail panel structure, and the rail panel is fixed on the stand column through the iron base plate 1. Before the iron tie plate 1 is fixed to the column, firstly, the hexagon bolt 7 needs to penetrate through the convex channel 17 and the concave channel 18, then the hexagon bolt and the I-shaped steel sleeper 12 are connected and fixed with the iron tie plate 1 through the connecting bolt kit, finally, the anchor bolt 2 is installed in place, the anchor bolt 2 firstly firmly connects the iron tie plate 1 with the lower column 13, secondly, the anchor bolt 2 tightly presses the flange of the steel sleeper 12 through the first flat washer 5 and the heavy spring washer 6, and plays a role in secondary fastening of the steel sleeper 12, so that the F rail 14 can bear various loads transmitted by a train. The material of the iron base plate 1 is cast by adopting nodular cast iron QT 450-10.

The anchoring system comprises an anchoring bolt 2, a first flat washer 5, a heavy-duty spring washer 6 and an insulating sleeve 11; the anchor bolt 2 is a hexagon bolt made of Q235, sequentially penetrates through the first flat washer 5, the heavy spring washer 6, the iron base plate 1, the elastic base plate 3 and the heightening base plate 4 to be fixedly connected with the insulating sleeve 11, and the insulating sleeve is post-cast and embedded into the upright foundation in the track laying process; the first flat washer 5 and the heavy washer 6 are arranged between the anchor bolt and the iron base plate 1; an elastic backing plate 3 and a height-adjusting backing plate 4 are arranged between the iron backing plate 1 and the upright column 13.

The flat washer 5 and the heavy washer 6 are standard parts, the material of the flat washer 5 is Q235, and the material of the heavy washer 6 is 60Si₂And Mn. The elastic backing plate 3 is made of polyester materials, grooves are formed in the elastic backing plate, the rigid connection between the iron backing plate and the stand column is guaranteed, appropriate elasticity can be provided, two centrosymmetric circular bolt holes 16 are formed in the elastic backing plate 3, an anchoring bolt can penetrate through the circular bolt holes, the elastic backing plate 3 is replaceable, and maintenance and replacement are convenient. The heightening base plate 4 can meet the uneven settlement of an off-line structure, can continuously adjust the uneven settlement of 10mm, is made of polyethylene, can be separated from other parts, can be selected according to heightening requirements, and has the specifications of 1 mm, 2 mm, 5 mm and 8mm in thickness. The nylon sleeve 11 is made of glass fiber reinforced polyamide 66 and is used for connecting and fixing the anchor bolt 2, during track laying construction, the track panel is assembled with the fastener into a whole through the connecting bolt sleeve, and the anchor bolt is tightly connected with the nylon sleeve to form a track to be laidAnd (4) carrying out rail erecting construction on the rail panel, pouring construction of the upright post foundation after fine adjustment, and pouring nylon sleeves into the upright posts 13.

The connecting system kit comprises a hexagon bolt 7, an M20 nut 8, a second flat washer 9 and a spring washer 10; the hexagonal bolt is a standard hexagonal bolt, is arranged in a channel on the iron base plate 1, sequentially penetrates through a bottom plate of an I-shaped steel sleeper 12, a second flat washer 9 and a spring washer 10 upwards, and is fastened by an M20 nut; two sides of the I-shaped steel sleeper bottom plate are respectively provided with two U-shaped bolt holes along the line direction.

As shown in fig. 2a and 2b, the i-shaped steel sleeper 12 is symmetrically provided with 4 open bolt holes 15 along the line direction on the bottom plate, so that the connecting bolts can be conveniently installed and detached from two side edges, and the track panel is allowed to longitudinally stretch due to temperature change. The utility model discloses a dual locking system, locking section of track that can be safer, stable guarantees that the section of track bears moment of flexure, shear force and axial force effect.

The utility model discloses elasticity split type fastener can conveniently dismantle and change spare part, maintenance easy maintenance in the operation engineering. Anchor bolt 2 tears the back open, can take out the change with elastic backing plate 3, packs into when the height-adjusting demand and increases backing plate 4, can realize the height-adjusting of fastener, and this fastener maximum height-adjusting is 10 mm.

The elastic split type fastener has enough strength, fastening pressure, stability and proper elasticity, has small volume and can provide great convenience for the maintenance process; the fastener has fewer parts, is convenient to install, maintain and replace, facilitates the construction of the stand column foundation, is firm in connection, and is easy to control the construction precision; the fastener has strong adaptability to parking train inspection lines, maintenance combination lines and frame maintenance lines.

It is worth pointing out that the protection scope of the present invention is not limited to the above specific example, and according to the basic technical concept of the present invention, the same basic structure can be used, so as to achieve the purpose of the present invention, as long as the ordinary skilled person in the art does not need to work creatively, the conceivable embodiments all belong to the protection scope of the present invention.

Claims

1. A double-anchoring elastic split track panel fastener for medium-low speed maglev traffic is characterized in that the fastener is suitable for interior lines of a field section warehouse, steel sleepers and upright column foundation sections, and fixes a maglev track panel on an upright column foundation, and comprises an iron base plate (1), an anchoring system external member, a connecting system external member and an I-shaped steel sleeper (12); the I-shaped steel sleeper (12) and the iron base plate are firmly connected into a whole through a connecting system which is symmetrical to the I-shaped steel sleeper (12), the iron base plate (1) is connected into a whole with a lower upright column foundation through an anchoring system, and the anchoring system also restrains the flange of the steel sleeper (12) to realize the double firm connection of the I-shaped steel sleeper (12) and the lower ring beam foundation.

2. The medium-low speed magnetic levitation transportation double-anchoring elastic split rail fastener as claimed in claim 1, wherein the main body of the iron tie plate (1) is of a polygonal structure; the iron base plate is symmetrically provided with preformed holes (19) for pouring the lower foundation grouting material; the external dimension of the lower upright column is consistent with the dimension of the iron backing plate.

3. The medium-low speed magnetic levitation transportation dual-anchoring elastic split rail fastening as claimed in claim 1 or 2, wherein the anchoring system suite comprises an anchoring bolt (2), a first flat washer (5), a heavy spring washer (6) and a nylon sleeve (11); the anchoring bolt (2) is a hexagon bolt made of Q235, sequentially penetrates through a first flat washer (5), a heavy spring washer (6), an iron base plate (1), an elastic base plate (3) and a height-adjusting base plate (4) to be fixedly connected with a nylon sleeve (11), and an insulating sleeve is poured and embedded into the stand column foundation after the rail laying process; the first flat washer (5) and the heavy spring washer (6) are arranged between the anchor bolt and the iron base plate (1); an elastic backing plate (3) and a height-adjusting backing plate (4) are arranged between the iron backing plate (1) and the upright post (13).

4. The medium-low speed magnetic levitation transportation double-anchoring elastic split rail fastener as claimed in claim 3, wherein the iron tie plate (1) is axially symmetrically provided with two convex channels (17) and two concave channels (18); the anchor bolt (2) penetrates through the convex channel (17) and is connected with the nylon sleeve (11), and the nylon sleeve is directly poured in the lower column foundation; the concave channel (18) enables a hexagon bolt acting in the concave channel to slide and be fixed with the steel sleeper (12).

5. The medium-low speed magnetic levitation transportation double-anchoring elastic split rail fastening as claimed in claim 1, wherein the bottom plate of the i-shaped steel sleeper (12) is symmetrically provided with four open bolt holes (15) along the line direction.

6. The medium-low speed magnetic levitation transportation dual-anchoring elastic split rail fastener as claimed in claim 3, wherein the elastic backing plate (3) is provided with a groove and a bolt hole through which the anchoring bolt (2) passes, the elastic backing plate (3) is made of polyester, and the heightening backing plate (4) is made of polyethylene.