Device for disassembling positioning pin of height valve of railway passenger car

Abstract

The utility model provides a device for disassembling a positioning pin of a height valve of a railway passenger car. The device comprises a rotating shaft, the top of the rotating shaft is provided with a rotating positioning column, the rotating positioning column is sleeved with an ejection flange, and the ejection flange comprises a first ejection flange and a second ejection flange; a hexagonal head with a hole is arranged at the tail of the rotating shaft, and an axis fixing circle is sleeved on the rotating shaft. The utility model relates to the field of disassembly and maintenance of height valves of brake systems of railway passenger cars, in particular to a device for disassembling a positioning pin of a height valve of a railway passenger car, which solves the problem that an inner hole limiting pin of the height valve cannot be effectively and completely disassembled when the height valve of the railway passenger car is disassembled and maintained.

Description

Technical Field

[0001] The utility model relates to the field of disassembly and maintenance of a height valve of a rail passenger car brake system, in particular to a device for disassembling a positioning pin of a height valve of a rail passenger car. Background Art

[0002] During the repair and overhaul of the rail passenger car frame, the height valve is disassembled and repaired, and the internal parts are replaced. The height valve is mainly used to adjust the amount of compressed gas in the secondary suspension airbag to keep the height of the left and right sides of the car body dynamically stable. Two cylindrical pins (limit pins) are installed inside the height valve body. The cylindrical pins are used to limit the internal gaskets and sealing rings. To replace the internal sealing rings, the gaskets need to be removed. The prerequisite is to remove the two cylindrical positioning pins first to achieve the replacement of parts.

[0003] The current maintenance method 1 is to return to the original manufacturer for maintenance and replace the height valve body. This increases the maintenance cost exponentially. Method 2 is to remove the limit pin in a very rare case, and use a thin round rod to smash the cylindrical pin from the outside to the inside, which is very easy to damage the pin hole of the valve body and cannot be restored. Method 3 is to use a small crowbar to push out the inner hole limit, which is easy to cause the pin to bend and break, and it is very difficult to remove the pin remaining in the valve body after breaking. The limit pin is installed in the pin hole on the height valve body. There is a pin hole in the upper and lower directions of the height valve body, and each pin hole has a positioning pin. The height valve body is generally made of aluminum. Utility Model Content

[0004] In view of this, the utility model aims to provide a device for disassembling a positioning pin of a height valve of a railway passenger car, so as to solve the problem that the limiting pin of the inner hole of the height valve cannot be effectively and completely disassembled when the height valve of the railway passenger car is disassembled for inspection.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A device for removing a positioning pin of a height valve of a railway passenger car comprises a rotating shaft, a rotating positioning column is arranged on the top of the rotating shaft, an ejection flange is sleeved on the rotating positioning column, and the ejection flange comprises a first ejection flange and a second ejection flange;

[0007] A hexagonal head with a hole is arranged at the tail of the rotating shaft, and an axis fixing circle is sleeved on the rotating shaft.

[0008] Furthermore, the axis fixing circle includes a first axis fixing semicircle and a second axis fixing semicircle, the first axis fixing semicircle is provided with a positioning column, the second axis fixing semicircle is provided with a positioning hole, and the positioning column is inserted into the positioning hole.

[0009] Furthermore, the front view of the ejection flange is an irregular arc drawn according to the trajectory curve of the ejection of the positioning pin.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The device for disassembling the positioning pin of the height valve of a railway passenger car disclosed by the utility model is easy to operate and can completely withdraw the positioning pin from the pin hole of the valve body when the height valve of the brake system of the railway passenger car is disassembled and repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0013] Figure 1 It is an overall schematic diagram of the device for removing the positioning pin of the height valve of a railway passenger car according to an embodiment of the utility model;

[0014] Figure 2 It is a front view of the device for disassembling the positioning pin of the height valve of a railway passenger car according to an embodiment of the utility model;

[0015] Figure 3 A front view of the ejection flange of the device for removing the positioning pin of the height valve of a railway passenger car according to an embodiment of the utility model;

[0016] Figure 4 A diagram showing the use status of the device for removing the positioning pin of a height valve of a railway passenger car according to an embodiment of the utility model;

[0017] Figure 5 The device for removing the positioning pin of the height valve of a railway passenger car according to the embodiment of the utility model Figure 4 A front view of

[0018] Figure 6 The device for removing the positioning pin of the height valve of a railway passenger car according to the embodiment of the utility model Figure 5 AA section view;

[0019] Figure 7 The device for removing the positioning pin of the height valve of a railway passenger car according to the embodiment of the utility model Figure 5 BB cross-sectional view;

[0020] Figure 8 The device for removing the positioning pin of the height valve of a railway passenger car according to the embodiment of the utility model Figure 5 CC section view;

[0021] Description of reference numerals:

[0022] 1. Hexagonal head with hole; 101. Hole; 2. Rotational positioning column; 3. Rotational axis; 4. Ejector flange; 401. First ejector flange; 402. Second ejector flange; 5. Height valve body; 6. Positioning pin; 7. Inner hole of valve body; 8. Axial positioning hole of valve body; 9. Axis fixing circle; 901. First axis fixing semicircle; 902. Second axis fixing semicircle; 9011. Positioning column; 9022. Positioning hole. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] The present embodiment relates to a device for disassembling a positioning pin of a height valve of a railway passenger car, which can solve the problem that the limiting pin of the inner hole of the height valve cannot be effectively and completely disassembled when the height valve of the railway passenger car is disassembled for inspection.

[0027] Based on the above design concept, an exemplary structure of the device for removing the positioning pin of the height valve of the railway passenger car of this embodiment is as follows: Figure 1-8 As shown, it mainly includes a rotating shaft 3, a rotating positioning column 2 is provided on the top of the rotating shaft 3, an ejection flange 4 is sleeved on the rotating positioning column 2, and the ejection flange 4 includes a first ejection flange 401 and a second ejection flange 402; a hexagonal head 1 with a hole is provided at the tail of the rotating shaft 3, and an axis fixing circle 9 is sleeved on the rotating shaft 3.

[0028] The axis fixing circle 9 includes a first axis fixing semicircle 901 and a second axis fixing semicircle 902 . The first axis fixing semicircle 901 is provided with a positioning column 9011 . The second axis fixing semicircle 902 is provided with a positioning hole 9022 . The positioning column 9011 is inserted into the positioning hole 9022 .

[0029] The front view of the ejection flange 4 is an irregular arc drawn according to the trajectory curve of the ejection of the positioning pin.

[0030] When the device for removing the locating pin of the height valve of a railway passenger car described in this embodiment is used, the rotating locating column 2 is installed into the axial locating hole 8 of the valve body, and the first axial fixing semicircle 901 and the second axial fixing semicircle 902 are combined into an axial fixing circle 9 through the locating column 9011 and the locating hole 9022, and the axial fixing circle 9 is installed on the inner hole 7 of the valve body so that the ejection flange 4 contacts the locating pin 6. Specifically, the first ejection flange 401 and the second ejection flange 402 are respectively in contact with the locating pin 6, and the perforated hexagonal head 1 is clamped by a wrench, and a rotational torque is applied to the device by the wrench, or a reinforcing arm, such as a stick, is inserted into the hole 101 on the perforated hexagonal head 1, and a rotational torque is applied to the device by the stick, thereby ejecting the locating pin 6.

[0031] The device for removing the positioning pin of the height valve of a railway passenger car according to the above-mentioned implementation scheme can well achieve the goal of not damaging the pin and the valve body when removing the pin, and is simple to operate, and the tooling does not deform when subjected to force.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for removing a positioning pin of a height valve of a railway passenger car, comprising a rotating shaft (3), characterized in that: A rotational positioning column (2) is provided at the top of the rotational shaft (3), and an ejection flange (4) is sleeved on the rotational positioning column (2), and the ejection flange (4) comprises a first ejection flange (401) and a second ejection flange (402); A hexagonal head (1) with a hole is provided at the tail of the rotating shaft (3), and an axis fixing circle (9) is sleeved on the rotating shaft (3).

2. The device for removing the positioning pin of the height valve of a railway passenger car according to claim 1, characterized in that: The axis fixing circle (9) comprises a first axis fixing semicircle (901) and a second axis fixing semicircle (902); a positioning column (9011) is provided on the first axis fixing semicircle (901); a positioning hole (9022) is provided on the second axis fixing semicircle (902); the positioning column (9011) is inserted into the positioning hole (9022).

3. The device for removing the positioning pin of the height valve of a railway passenger car according to claim 2, characterized in that: The front view of the ejection flange (4) is an irregular arc drawn according to the trajectory curve of the ejection of the positioning pin.

Images