Sealing tool for hydraulic test of railway vehicle bogie cross beam

Abstract

The utility model discloses a hydraulic test sealing tool for a railway vehicle bogie cross beam, which comprises a sealing cover, a sealing ring is arranged at one end of the sealing cover matched with an air spring hole, and the sealing cover and the air spring hole are in sealing connection through the sealing ring; the positioning rod penetrates through the sealing cover; one end of the positioning rod is embedded into the air spring hole and abuts against the side wall of the air spring hole to form positioning connection, and the other end of the positioning rod is connected with the sealing cover. According to the tool, fixed-point connection is formed between one end of the L-shaped structure of the positioning rod penetrating through the sealing cover and the air spring hole, and the sealing cover is installed at the upper end of the air spring hole through the nut, so that sealing connection between the sealing cover and the air spring hole is achieved through the sealing ring, and the purpose of sealing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pressure test of bogie crossbeams, in particular to a sealing tool for water pressure test of rail passenger car bogie crossbeams. Background Art

[0002] During the hydrostatic test of the bogie crossbeam of the subway project, the air spring hole in the center of the crossbeam cannot be sealed by welding, and the air spring hole is a machined surface that does not have thread sealing conditions. Therefore, a special sealing form is required, and currently there is a special tooling for sealing this structure.

[0003] Therefore, based on the above technical problems, technicians in this field urgently need to develop a water pressure test sealing tool for railway passenger car bogie crossbeam. Utility Model Content

[0004] The utility model aims to provide a rail passenger car bogie crossbeam water pressure test sealing tool, which can effectively block the central air spring hole of the crossbeam and ensure that 12.5kg water pressure does not leak, ensuring that the crossbeam water pressure test is carried out normally.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model discloses a hydraulic test sealing tool for a rail passenger car bogie crossbeam, which comprises:

[0007] A sealing cover, wherein a sealing ring is installed at one end of the sealing cover that cooperates with the air spring hole to form a sealed connection with the air spring hole through the sealing ring; and

[0008] a positioning rod passing through the sealing cover;

[0009] One end of the positioning rod is embedded in the air spring hole and abuts against the side wall of the air spring hole to form a positioning connection, and the other end of the positioning rod is connected to the sealing cover.

[0010] Furthermore, the sealing cover comprises:

[0011] A sealing cover body; and

[0012] A sealing column located at the center of the sealing cover body and protruding from the sealing cover body;

[0013] The cross-sectional dimension of the sealing column is smaller than the cross-sectional dimension of the sealing cover body;

[0014] The sealing column is circumferentially processed with a sealing ring groove for embedding the sealing ring, and the sealing column can be embedded in the air spring hole and sealed by the sealing ring;

[0015] The sealing cover body is arranged on the upper end of the air spring hole;

[0016] A through hole is provided at the center of the sealing cover.

[0017] Furthermore, the positioning rod includes:

[0018] Mounting rods and threaded rods;

[0019] The cross-sectional dimension of the mounting rod is larger than that of the threaded rod, and a matching boss is arranged on the outer periphery of the mounting rod;

[0020] The threaded rod passes through the through hole of the sealing ring and partially extends to the outside of the sealing ring. When the threaded rod passes through the sealing ring, the mounting rod is butted against the sealing cover through the matching boss.

[0021] Further, the mounting rod is configured as an L-shaped structure;

[0022] A cross bar is protruded toward one side of one end of the mounting rod away from the threaded rod in a direction perpendicular to the threaded rod;

[0023] The mounting rod can be embedded in the air spring hole, and the cross bar is used to abut against the inner wall of the air spring hole.

[0024] Further, the threaded rod is installed with a nut;

[0025] The positioning rod is positioned and fixed with the sealing cover through the matching boss and the nut.

[0026] In the above technical solution, the utility model provides a rail passenger car bogie crossbeam water pressure test sealing tool, which has the following beneficial effects:

[0027] The tooling of the utility model forms a fixed-point connection with the air spring hole through one end of the L-shaped structure of the positioning rod passing through the sealing cover, and the sealing cover is installed on the upper end of the air spring hole through a nut, so as to utilize a sealing ring to achieve a sealed connection with the air spring hole, thereby achieving the purpose of sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. It is obvious that the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a structural schematic diagram of a hydraulic test sealing tool for a rail passenger car bogie crossbeam disclosed in an embodiment of the utility model;

[0030] Figure 2 The utility model is a front view of a hydraulic test sealing tool for a rail passenger car bogie crossbeam disclosed in an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1. Sealing cover; 2. Positioning rod;

[0033] 101, sealing cover body; 102, sealing column; 103, sealing ring groove;

[0034] 201, mounting rod; 202, threaded rod; 203, cross bar; 204, matching boss; 205, nut. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] See also Figure 1 to Figure 2 As shown;

[0037] A hydraulic test sealing tool for a rail passenger car bogie crossbeam in this embodiment includes:

[0038] A sealing cover 1, wherein a sealing ring is installed at one end of the sealing cover 1 that cooperates with the air spring hole to form a sealed connection with the air spring hole through the sealing ring; and

[0039] A positioning rod 2 passing through the sealing cover 1;

[0040] One end of the positioning rod 2 is embedded in the air spring hole and abuts against the side wall of the air spring hole to form a positioning connection, and the other end of the positioning rod 2 is connected to the sealing cover 1.

[0041] Specifically, this embodiment discloses a sealing fixture suitable for a hydraulic test of a rail passenger car bogie, which includes a sealing cover 1 and a positioning rod 2. The sealing cover 1 of this embodiment is buckled on the upper end of the air spring hole and forms a sealing connection with the air spring hole through the sealing ring thereon. The positioning rod 2 of this embodiment passes through the sealing cover 1, partially extends into the inside of the air spring hole and abuts against the inner wall of the air spring hole to form a positioning connection. At the same time, the positioning rod 2 is located at one end outside the sealing cover 1 and is connected to the sealing cover, thereby finally sealing the air spring hole.

[0042] Preferably, the sealing cover 1 of this embodiment includes:

[0043] Sealing cover body 101; and

[0044] A sealing column 102 located at the center of the sealing cover body 101 and protruding from the sealing cover body 101;

[0045] The cross-sectional dimension of the sealing column 102 is smaller than the cross-sectional dimension of the sealing cover body 101;

[0046] The sealing column 102 is circumferentially processed with a sealing ring groove 103 for embedding a sealing ring. The sealing column 102 can be embedded in the air spring hole and sealed by the sealing ring.

[0047] The sealing cover body 101 is disposed on the upper end of the air spring hole;

[0048] A through hole is formed in the center of the sealing cover 1 .

[0049] First, this embodiment further defines the structure of the sealing cover 1, which has an integrally formed sealing cover body 101 and a sealing column 102; wherein the sealing column 102 is processed with at least one shallow groove as a sealing ring groove 103 for embedding the sealing ring, and the sealing column 102 can be embedded in the air spring hole and sealed and connected to the air spring hole by the sealing ring, and in addition, the sealing cover body 101 is buckled on the upper end of the air spring hole.

[0050] Preferably, the positioning rod 2 of this embodiment includes:

[0051] Mounting rod 201 and threaded rod 202;

[0052] The cross-sectional dimension of the mounting rod 201 is larger than that of the threaded rod 202 , and a matching boss 204 is provided on the outer periphery of the mounting rod 201 ;

[0053] The threaded rod 202 passes through the through hole of the sealing ring and partially extends to the outside of the sealing ring. When the threaded rod 202 passes through the sealing ring, the mounting rod 201 is butted against the sealing cover 1 through the matching boss 204 .

[0054] More specifically, the mounting rod 201 of this embodiment is configured as an L-shaped structure;

[0055] A cross bar 203 is protruded toward one side along a direction perpendicular to the threaded rod 202 at one end of the mounting rod 201 away from the threaded rod 202;

[0056] The mounting rod 201 can be embedded in the air spring hole, and the cross bar 203 is used to abut against the inner wall of the air spring hole.

[0057] The threaded rod 202 is mounted with a nut;

[0058] The positioning rod 2 is positioned and fixed with the sealing cover 1 by matching the boss 204 and the nut 205 .

[0059] This embodiment further defines the structure of the positioning rod 2, which is an integrally formed structure, mainly divided into two main parts: the mounting rod 201 and the threaded rod 202. Among them, the mounting rod 201 is the part embedded in the air spring hole, and the threaded rod 202 is the part that passes through the sealing cover 1 and extends to the outside of the sealing cover 1. The mounting rod 201 of this embodiment is an L-shaped structure, which has a horizontally extending cross bar 203. The cross bar 203 is a structure for abutting against the inner wall of the air spring hole to form a fixed-point positioning connection, and a matching boss 204 is also processed on it. The matching boss 204 abuts against the lower end of the sealing column 102 of the sealing cover 1, and the nut of the threaded rod 202 is matched to achieve connection with the sealing cover 1.

[0060] In the above technical solution, the utility model provides a rail passenger car bogie crossbeam water pressure test sealing tool, which has the following beneficial effects:

[0061] The tooling of the utility model forms a fixed-point connection with the air spring hole by passing one end of the L-shaped structure of the positioning rod 2 of the sealing cover 1, and installs the sealing cover 1 on the upper end of the air spring hole through the nut 205, so as to utilize the sealing ring to realize the sealing connection with the air spring hole, thereby achieving the purpose of sealing.

[0062] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydraulic test sealing tool for a rail passenger car bogie crossbeam, characterized in that: The tooling includes: A sealing cover (1), wherein one end of the sealing cover (1) is fitted with a sealing ring so as to form a sealed connection with the air spring hole through the sealing ring; and A positioning rod (2) passing through the sealing cover (1); One end of the positioning rod (2) is embedded in the air spring hole and abuts against the side wall of the air spring hole to form a positioning connection, and the other end of the positioning rod (2) is connected to the sealing cover (1).

2. A rail passenger car bogie crossbeam water pressure test sealing tool according to claim 1, characterized in that: The sealing cover (1) comprises: A sealing cover body (101); and A sealing column (102) located at the center of the sealing cover body (101) and protruding from the sealing cover body (101); The cross-sectional dimension of the sealing column (102) is smaller than the cross-sectional dimension of the sealing cover body (101); The sealing column (102) is circumferentially processed with a sealing ring groove (103) for embedding the sealing ring, and the sealing column (102) can be embedded in the air spring hole and sealed by the sealing ring; The sealing cover body (101) is arranged to cover the upper end of the air spring hole; A through hole is provided in the center of the sealing cover (1).

3. A rail passenger car bogie crossbeam water pressure test sealing tool according to claim 2, characterized in that: The positioning rod (2) comprises: A mounting rod (201) and a threaded rod (202); The cross-sectional dimension of the installation rod (201) is greater than the cross-sectional dimension of the threaded rod (202), and a matching boss (204) is provided on the outer periphery of the installation rod (201); The threaded rod (202) passes through the through hole of the sealing ring and partially extends to the outside of the sealing ring, and when the threaded rod (202) passes through the sealing ring, the mounting rod (201) is butted against the sealing cover (1) via the matching boss (204).

4. A rail passenger car bogie crossbeam water pressure test sealing tool according to claim 3, characterized in that: The mounting rod (201) is configured as an L-shaped structure; A cross bar (203) protrudes from one end of the mounting rod (201) away from the threaded rod (202) toward one side in a direction perpendicular to the threaded rod (202); The mounting rod (201) can be embedded in the air spring hole, and the cross bar (203) is used to abut against the inner wall of the air spring hole.

5. The hydraulic test sealing tool for a rail passenger car bogie crossbeam according to claim 3, characterized in that: The threaded rod (202) is mounted with a nut (205); The positioning rod (2) is positioned and fixed with the sealing cover (1) through the matching boss (204) and the nut (205).

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