Adjusting gasket of overhead line system davit and davit mounting structure comprising same

Abstract

The utility model provides a catenary davit adjusting shim and a davit installation structure including the shim, the interior of the adjusting shim is hollow, the upper end and the lower end of the adjusting shim are open, the upper portion of the adjusting shim is provided with an arc-shaped notch used for being in contact support with a hard cross beam, and the adjusting shim is formed according to a davit cushion block in a profiling mode and used for being arranged on the davit cushion block in a sleeved mode. The device is simple in structure, convenient to use and stable and reliable in detection, the railway construction requirement is met, the efficiency of adjusting the slope of the catenary davit is greatly improved, the cost of adjusting the slope of the catenary davit is reduced, and the process of adjusting the slope of the catenary davit is accurate, simple and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of contact network suspender column construction, in particular to an adjustment gasket for a contact network suspender column and a suspender column installation structure comprising the gasket. Background Art

[0002] During the construction of electrified railways, rail transit, and power projects, adjusting the slope of the catenary's rigid crossbeam suspenders is highly risky and labor-intensive. Adjusting the slope of rigid crossbeam suspenders is an essential step during the construction preparation phase. Only by carefully controlling the slope of the rigid crossbeam suspenders can the accuracy of the suspender installation position, the correct installation of the suspender arm, and other catenary parameter errors be minimized, ultimately ensuring post-construction efficiency and quality. Traditionally, the slope of the rigid crossbeam suspenders has been adjusted by adjusting the adjustment pads on the rigid crossbeam's pull plate to adjust the entire suspender's slope. However, the suspender's slope is affected by numerous on-site factors, including the rigid crossbeam's installation position, line parameters, and track superelevation. In extreme positions, the adjustment pads lack sufficient margin for adjustment, making it impossible to guarantee the suspender's slope. Utility Model Content

[0003] In response to the above-mentioned deficiencies in the existing technology, the utility model provides an adjustment gasket for a contact network suspension column and a suspension column installation structure including the gasket, which quickly solves the installation and alignment problems of the contact network hard beam suspension column, greatly improves the construction efficiency of the contact network hard beam suspension column installation, and ensures the quality of later construction.

[0004] The technical solution provided by the utility model is: an adjusting gasket for a contact network sling, the adjusting gasket is hollow inside and open at the upper and lower ends, an arc-shaped groove is opened on the upper part of the adjusting gasket for contact support with a hard beam, the adjusting gasket is formed according to the shape of a sling pad and is used to be sleeved on the sling pad.

[0005] Furthermore, the height difference between the left and right ends of the adjustment gasket is within 0-2 mm, and the height difference is determined by the pre-camber of the hard beam.

[0006] Furthermore, the surface of the adjusting gasket is hot-dip galvanized and the coating thickness is greater than 86 μm.

[0007] Furthermore, the shape of the arc-shaped notch is semicircular.

[0008] Furthermore, the width and height of the adjusting gasket are greater than the width and height of the sling pad.

[0009] Another technical solution provided by the present invention is: a contact network suspension column installation structure, including the adjustment gasket, and also including a hard beam and a suspension column, a suspension column pad is provided on the top plate of the suspension column, the adjustment gasket is sleeved on the suspension column pad, the bottom of the hard beam is tightly fitted with the adjustment gasket, and the hard beam is connected and fixed to the top plate of the suspension column by a U-bolt.

[0010] Furthermore, the sling pads are arranged in two groups in parallel, each group is provided with a plurality of sling pads, and each sling pad is sleeved with an adjusting gasket.

[0011] Furthermore, a plurality of connection holes are respectively provided on the top plate between each group of the suspender pads, and U-shaped bolts are inserted into the connection holes to fix the top plate of the suspender to the hard beam.

[0012] Beneficial effects of the utility model:

[0013] (1) The utility model can be used in the straightening of hard beam slings in the construction of electrified railways, rail transit and power engineering projects. The slope of the sling can be adjusted by putting the adjusting gasket on the sling pad and adjusting the U-bolt.

[0014] (2) The left and right heights of the adjustment gasket of the present invention are set differently according to the pre-arch of the hard beam, so that it can fit closely with the hard beam. The pre-arch of the hard beam 1° corresponds to a height difference of 1mm, and the pre-arch of the hard beam 2° corresponds to a height difference of 2mm.

[0015] (3) The weld grade of the gasket described in the present invention is level three, the material of the gasket is consistent with the material of the hanging column, the surface of the gasket is hot-dip galvanized and the thickness is greater than 86μm, which meets the construction quality acceptance standards of high-speed railway electric traction power supply projects.

[0016] The utility model has a simple structure, simple manufacturing materials, is easy to carry, has high accuracy, and can minimize construction quality problems caused by human errors and environmental errors. At the same time, it requires less manpower and saves construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the adjusting gasket of the utility model;

[0018] Figure 2 This is a front view of an adjusting gasket in a specific embodiment of the present utility model;

[0019] Figure 3 It is a schematic diagram of the contact network davit installation structure of the utility model;

[0020] Figure 4 It is a structural diagram of the sling and the adjusting gasket of the utility model;

[0021] Figure 5 yes Figure 3 A magnified view of the detailed structure;

[0022] In the figure: 1—adjusting gasket, 101—arc-shaped notch, 2—hard beam, 3—hanging column pad, 4—hanging column, 401—top plate, 402—connecting hole, 5—U-bolt. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "front", "rear", "upper", "lower", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 1-5 The shown embodiment shows an adjusting gasket for a contact network suspender. The adjusting gasket 1 is hollow inside and open at the upper and lower ends. An arc-shaped groove 101 is provided on the upper part of the adjusting gasket 1 for contact and support with the hard beam 2. The adjusting gasket 1 is formed according to the shape of the suspender pad 3 and is used to be sleeved on the suspender pad 3.

[0027] The left and right sides of the adjustment gasket 1 have different heights. The height difference between the left and right ends of the adjustment gasket 1 is 0-2mm, which is determined by the pre-camber of the rigid crossbeam. Specifically, a pre-camber of 1° corresponds to a height difference of 1mm, and a pre-camber of 2° corresponds to a height difference of 2mm. The surface of the adjustment gasket 1 is hot-dip galvanized with a coating thickness greater than 86μm. The weld grade of the adjustment gasket 1 is Class 3. The gasket material is consistent with the material of the suspender, meeting the construction quality acceptance standards for high-speed railway electric traction power supply projects.

[0028] The shape of the arc-shaped notch 101 is semicircular, and the inner diameter of the arc-shaped notch 101 is the same as the inner diameter of the opening of the sling pad 3. The adjustment gasket 1 is a square cavity with a semicircular notch on the upper part.

[0029] The size of the adjusting gasket 1 of the present invention is slightly larger than the sling pad 3 , and when in use, the adjusting gasket 2 of the contact network sling is sleeved on the sling pad 3 .

[0030] like Figure 3 and Figure 5 The structure shown is a catenary suspender mounting structure, comprising an adjustment gasket 1, a rigid beam 2, and a suspender 4. A suspender pad 3 is provided on the top plate 401 of the suspender 4. The adjustment gasket 1 fits over the suspender pad 3. The bottom of the rigid beam 2 is in close contact with the adjustment gasket 1. The rigid beam 2 is connected and fixed to the top plate 401 of the suspender 4 via U-bolts 5. The suspender pads 3 are arranged in two parallel groups, each group having multiple suspender pads, and each suspender pad 3 is fitted with an adjustment gasket 1. Multiple groups of connection holes 402 are provided on the top plate 401 between each group of suspender pads 3. U-bolts 5 are inserted into the connection holes 402 and threadedly connected to the top plate 401, securing the suspender 4 to the rigid beam 2.

[0031] When the present invention is used, an adjusting gasket 1 is put on each sling pad 3, and the sling pad 3 and the adjusting gasket 1 on the top of the sling 4 are in close contact with the bottom of the hard beam 2, and then the U-bolt 5 is inserted into the connecting hole 402 to fix the hard beam 2 with the sling pad 3 and the adjusting gasket 1, and the U-bolt 5 is tightened to connect and fix. When in use, the U-bolt 5 is adjusted to complete the adjustment of the sling slope.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustment gasket for a contact network suspender, characterized in that: The adjusting gasket (1) is hollow inside and open at both ends. An arc-shaped notch (101) is provided on the upper portion of the adjusting gasket (1) for contacting and supporting the hard beam (2). The adjusting gasket (1) is shaped according to the suspension column pad (3) and is used to be sleeved on the suspension column pad (3).

2. The adjusting gasket for a contact network suspender according to claim 1, characterized in that: The height difference between the left and right ends of the adjusting gasket (1) is 0-2 mm, and the height difference is determined by the pre-camber of the hard beam.

3. The adjusting gasket for a contact network suspender according to claim 1, characterized in that: The surface of the adjusting gasket (1) is hot-dip galvanized, and the coating thickness is greater than 86 μm.

4. The adjusting gasket for a contact network suspender according to claim 1, characterized in that: The arc-shaped notch (101) is in the shape of a semicircle.

5. The adjusting gasket for a contact network suspender according to claim 1, characterized in that: The width and height of the adjusting gasket (1) are greater than the width and height of the sling pad (3).

6. A contact network suspender mounting structure, comprising the adjusting gasket (1) according to any one of claims 1 to 5, characterized in that: It also includes a hard crossbeam (2) and a suspension column (4), wherein a suspension column pad (3) is provided on the top plate (401) of the suspension column (4), and the adjustment gasket (1) is sleeved on the suspension column pad (3). The bottom of the hard crossbeam (2) is tightly fitted with the adjustment gasket (1), and the hard crossbeam (2) is connected and fixed to the top plate (401) of the suspension column (4) by a U-bolt (5).

7. The contact network suspender installation structure according to claim 6, characterized in that: The sling pads (3) are arranged in two groups in parallel, with a plurality of sling pads provided in each group, and an adjusting gasket (1) is sleeved on each sling pad (3).

8. The contact network suspender installation structure according to claim 7, characterized in that: A plurality of connection holes (402) are respectively provided on the top plate (401) between each group of the suspender pads (3); U-shaped bolts (5) are inserted into the connection holes (402) and threadedly connected to the top plate (401) to fix the suspender (4) and the hard beam (2).

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