Sleeve connecting structure for magnetic levitation track beam

Abstract

The sleeve connecting structure for the magnetic levitation track beam comprises a sleeve body with a first internal thread blind hole, the outer side of the sleeve body is fixedly sleeved with a limiting ring, the outer wall of the sleeve body is provided with an external thread, and the external thread is located at the end, provided with the first internal thread blind hole, of the sleeve body; the cylinder further comprises a cylinder cap matched with the cylinder body, a second internal thread blind hole is formed in the cylinder cap, and the second internal thread blind hole is matched with the external thread. The utility model aims to provide the sleeve connecting structure for the maglev track beam, so as to solve the problem that the efficiency is low when a connecting sleeve is mounted on a groove wall template of the maglev track beam in the prior art, and achieve the purpose of being beneficial to quickly mounting and positioning the connecting sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic levitation tracks, in particular to a sleeve connection structure for a magnetic levitation track beam. Background Art

[0002] The track beam is an important part of the maglev track. It is a beam or plate structure with a track functional surface, bearing the train load and transferring it to the supporting structure. In other words, the maglev track beam has the functions of both the beam and the track of a traditional railway. Compared with the operation of traditional rail trains, maglev trains have extremely high requirements for the accuracy of the track beam.

[0003] The track beam of the maglev track is generally equipped with a magnet module inside to provide the vehicle above with forward driving force and lift required for suspension. The magnet module and the track beam are installed through a connecting sleeve with an internal thread. Specifically, the connecting sleeve is pre-embedded in the side wall of the track beam in advance. When the magnet module is installed later, the bolts connected to the magnet module are screwed into the corresponding connecting sleeve to achieve installation.

[0004] When the maglev track beam structure is prepared by the cast-in-place method, due to the increase in the number of magnet modules and the number of grooves for installing the magnet modules, a large number of connecting sleeves need to be installed and positioned on the groove wall template at one time. The traditional positioning method of the connecting sleeves is cumbersome and leads to low operating efficiency. Utility Model Content

[0005] The utility model aims to provide a sleeve connection structure for a maglev track beam, so as to solve the problem of low efficiency in installing a connecting sleeve on a groove wall template of a maglev track beam in the prior art, and to achieve the purpose of facilitating rapid installation and positioning of the connecting sleeve.

[0006] The utility model is realized by the following technical solutions:

[0007] The sleeve connection structure for a maglev track beam comprises a cylinder with a first internally threaded blind hole, a limiting ring is fixedly sleeved on the outer side of the cylinder, an external thread is arranged on the outer wall of the cylinder, and the external thread is located at one end of the cylinder where the first internally threaded blind hole is provided; and the sleeve connection structure also comprises a cylinder cap matching with the cylinder, a second internally threaded blind hole is arranged on the cylinder cap, and the second internally threaded blind hole matches with the external thread.

[0008] In view of the problem of low efficiency in installing connecting sleeves on the groove wall template of the maglev track beam in the prior art, the utility model proposes a sleeve connecting structure for the maglev track beam, wherein the cylinder body has a first internal threaded blind hole, one end of the bottom of the first internal threaded blind hole is located in the cast-in-place side direction of the template, and the opening end of the first internal threaded blind hole is located in the outer side direction of the template; a limiting ring is used to abut against the surface of the template, so that when the connecting sleeve is installed into each sleeve mounting hole from the top of the template from top to bottom, the connecting sleeve will not pass through the sleeve mounting hole, and can abut against the template surface through the limiting ring.

[0009] The present application uses a barrel cap to achieve positioning between the barrel and the template, and the second internal threaded blind hole inside the barrel cap matches the external thread outside the barrel. When the barrel passes through the sleeve mounting hole and the limiting ring abuts against the template, the external thread and the limiting ring are respectively located on both sides of the template. At this time, the barrel cap is put outside the barrel and gradually screwed in until the end face of the barrel cap abuts against the template. At this time, the positioning of the connecting sleeve is completed. The connecting sleeve in this state has stability on both sides of the axial direction and cannot automatically detach from the connection with the template, achieving a good positioning effect and being able to effectively ensure stability during the subsequent cast-in-place process. When demolding, you only need to remove each barrel cap first.

[0010] Furthermore, a sealing gasket is embedded on the end face of the limiting ring facing the opening direction of the first internal threaded blind hole; the sealing gasket can firstly seal the gap between the limiting ring and the template and reduce the risk of cast-in-place concrete penetrating into the sleeve mounting hole through the gap; secondly, it can also make the concrete consolidated between the limiting ring and the template partially located on the elastic sealing gasket, which is more conducive to the separation between the template and the limiting ring during demoulding.

[0011] Furthermore, the sealing gasket is located at the outer diameter end of the end face of the limiting ring, which is more conducive to the entry of the assembled concrete into the gap between the limiting ring and the template, thereby reducing the difficulty of subsequent demoulding.

[0012] Furthermore, the sealing gasket is bonded to the end surface of the limiting ring to ensure a stable connection of the sealing gasket.

[0013] Furthermore, it also includes a template for installing the cylinder, a sleeve mounting hole is opened on the template, the diameter of the sleeve mounting hole is equal to the outer diameter of the cylinder and smaller than the diameter of the limit ring; when the end of the cylinder with an external thread is screwed into the second internal thread blind hole and reaches the end of the stroke, the end face of the cylinder cap abuts against the template.

[0014] Furthermore, a positioning strip is fixed to the outer wall of the cylinder, one end of which is fixed on the end face of the limiting ring facing the opening direction of the first internal threaded blind hole; a positioning groove matching the positioning strip is provided on the hole wall of the sleeve mounting hole, and the positioning groove is open on the surface of one side of the template facing the direction of the limiting ring.

[0015] In this solution, a positioning strip parallel to the axis of the cylinder is extended from the limiting ring, and a positioning groove is provided on the hole wall of the sleeve mounting hole; when the connecting sleeve is installed, the positioning strip is aligned with the positioning groove; when the limiting ring abuts against the template, the positioning strip enters the corresponding positioning groove, and the end of the positioning strip abuts against the bottom of the positioning groove; through the cooperation of a plurality of positioning strips and the positioning grooves, the cylinder cannot rotate, thereby significantly improving the circumferential stability of the cylinder during the subsequent cast-in-place process.

[0016] Furthermore, the axis of the positioning strip is parallel to the axis of the cylinder.

[0017] Furthermore, the axial length of the positioning groove is smaller than the thickness of the template to ensure that the positioning strip cannot penetrate the template, so that the positioning strip can abut against the bottom of the positioning groove.

[0018] Furthermore, the axial length of the positioning strip is equal to the axial length of the positioning groove, so as to ensure the mutual cooperation ability between the positioning strip and the positioning groove.

[0019] Furthermore, a plurality of positioning strips are evenly distributed along the circumferential direction on the outer wall of the cylinder, and the positioning strips correspond to the positioning grooves one by one, thereby further improving the axial stability of the cylinder.

[0020] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0021] 1. The utility model is used for the sleeve connection structure of the maglev track beam. Only by inserting the cylinder body and screwing the cylinder cap into place can the installation and positioning of the sleeve be completed. The installation process is simple and convenient, and the installation efficiency is improved.

[0022] 2. The sleeve connection structure of the utility model for the maglev track beam achieves a good positioning effect, improves axial and circumferential stability, and can effectively ensure stability during the subsequent cast-in-place process.

[0023] 3. The sleeve connection structure of the utility model for the maglev track beam can be applied to batch installation operations on a template when the number of sleeves is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0025] Figure 1 It is a cross-sectional view of the connecting sleeve after installation in a specific embodiment of the utility model;

[0026] Figure 2 This is a structural schematic diagram of a connecting sleeve and a barrel cap in a specific embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the sleeve mounting hole in a specific embodiment of the utility model.

[0028] Marks and corresponding parts names in the attached drawings:

[0029] 24-sleeve mounting hole, 241-positioning groove, 301-cylinder body, 302-first internal thread blind hole, 303-limiting ring, 304-sealing gasket, 305-external thread, 306-cylinder cap, 307-second internal thread blind hole, 308-positioning strip, 900-template. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0031] Embodiment 1:

[0032] like Figure 1 and Figure 2 The sleeve connection structure for the maglev track beam shown includes a cylinder 301 with a first internally threaded blind hole 302, a limiting ring 303 is fixedly sleeved on the outside of the cylinder 301, an external thread 305 is arranged on the outer wall of the cylinder 301, and the external thread 305 is located at one end of the cylinder 301 where the first internally threaded blind hole 302 is opened; it also includes a cylinder cap 306 matching the cylinder 301, a second internally threaded blind hole 307 is arranged on the cylinder cap 306, and the second internally threaded blind hole 307 matches the external thread 305.

[0033] A sealing gasket 304 is embedded on the end surface of the limiting ring 303 facing the opening direction of the first internal thread blind hole 302. The sealing gasket 304 is located at the outer diameter end of the end surface of the limiting ring 303.

[0034] In a more preferred embodiment, a ring groove is provided on the outer diameter side circumference of the limiting ring, and the end face of the ring groove on the side of the limiting ring facing the template is also open, and the sealing gasket is fixedly sleeved in the ring groove, and the fixing method can be bonding or the like.

[0035] Embodiment 2:

[0036] The sleeve connection structure for the magnetic levitation track beam is based on Example 1. Figures 1 to 3As shown, it includes a template 900 for installing the cylinder 301, and a sleeve mounting hole 24 is opened on the template 900. The diameter of the sleeve mounting hole 24 is equal to the outer diameter of the cylinder 301 and smaller than the diameter of the limit ring 303; when one end of the cylinder 301 with the external thread 305 is screwed into the second internal thread blind hole 307 and reaches the end of the stroke, the end face of the cylinder cap 306 abuts against the template.

[0037] A positioning strip 308 is also fixed to the outer wall of the cylinder 301, and one end of the positioning strip 308 is fixed on the end face of the limiting ring 303 facing the opening direction of the first internal threaded blind hole 302; a positioning groove 241 matching the positioning strip 308 is formed on the hole wall of the sleeve mounting hole 24, and the positioning groove 241 is open on the surface of one side of the template facing the direction of the limiting ring 303.

[0038] The axis of the positioning bar 308 is parallel to the axis of the cylinder 301 .

[0039] The axial length of the positioning groove 241 is less than the thickness of the template. The axial length of the positioning strip 308 is equal to the axial length of the positioning groove 241 .

[0040] A plurality of positioning strips 308 are evenly distributed along the circumferential direction on the outer wall of the cylinder 301 .

[0041] When this embodiment is used specifically:

[0042] Tiled template 900;

[0043] Make the end of the cylinder 301 with the first internal thread blind hole 302 face downward; adjust the angle of the cylinder 301 so that the positioning bar 308 faces the positioning groove 241;

[0044] Insert the cylinder 301 into the sleeve installation hole 24, and the cylinder 301 falls freely under the action of gravity until the limit ring 303 abuts against the upper surface of the template, and at this time, the positioning bar 308 abuts against the bottom of the positioning groove 241;

[0045] The staff enters the space below the template, puts the cylinder cap 306 on the outside of the bottom end of the cylinder body 301, and screws it into the external thread 305 to fix it until the top of the cylinder cap 306 abuts against the bottom surface of the template.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, the term "connected" used in this article can be directly connected or indirectly connected via other components without special explanation.

[0047] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A sleeve connection structure for a maglev track beam, comprising a cylinder (301) with a first internal thread blind hole (302), characterized in that: A limiting ring (303) is fixedly sleeved on the outer side of the cylinder (301); an external thread (305) is arranged on the outer wall of the cylinder (301); the external thread (305) is located at one end of the cylinder (301) where a first internal thread blind hole (302) is provided; and the cylinder cap (306) matching the cylinder (301) is also included; a second internal thread blind hole (307) is arranged on the cylinder cap (306); the second internal thread blind hole (307) matches the external thread (305).

2. The sleeve connection structure for a maglev track beam according to claim 1, characterized in that: A sealing gasket (304) is embedded on the end surface of the limiting ring (303) facing the opening direction of the first internal thread blind hole (302).

3. The sleeve connection structure for a maglev track beam according to claim 2, characterized in that: The sealing gasket (304) is located at the outer diameter end of the end surface of the limiting ring (303).

4. The sleeve connection structure for a maglev track beam according to claim 2, characterized in that: The sealing gasket (304) is bonded to the end surface of the limiting ring (303).

5. The sleeve connection structure for a maglev track beam according to claim 1, characterized in that: It also includes a template for installing the cylinder (301), the template is provided with a sleeve installation hole (24), the diameter of the sleeve installation hole (24) is equal to the outer diameter of the cylinder (301) and smaller than the diameter of the limit ring (303); when one end of the cylinder (301) with an external thread (305) is screwed into the second internal thread blind hole (307) and reaches the end of the stroke, the end surface of the cylinder cap (306) abuts against the template.

6. The sleeve connection structure for a maglev track beam according to claim 5, characterized in that: A positioning strip (308) is also fixed to the outer wall of the cylinder (301), and one end of the positioning strip (308) is fixed to the end face of the limiting ring (303) facing the opening direction of the first internal threaded blind hole (302); a positioning groove (241) matching the positioning strip (308) is formed in the hole wall of the sleeve mounting hole (24), and the positioning groove (241) is open on one side surface of the template facing the direction of the limiting ring (303).

7. The sleeve connection structure for a maglev track beam according to claim 6, characterized in that: The axis of the positioning strip (308) is parallel to the axis of the cylinder (301).

8. The sleeve connection structure for a maglev track beam according to claim 6, characterized in that: The axial length of the positioning groove (241) is smaller than the thickness of the template.

9. The sleeve connection structure for a maglev track beam according to claim 8, characterized in that: The axial length of the positioning strip (308) is equal to the axial length of the positioning groove (241).

10. The sleeve connection structure for a maglev track beam according to claim 6, characterized in that: A plurality of positioning strips (308) are evenly distributed along the circumferential direction on the outer wall of the cylinder (301).

Images