Bush removing tool suitable for foundation brake of HX type locomotive

Abstract

The utility model relates to the technical field of mechanical dismantling, and discloses a dismantling tool suitable for a basic brake lining of an HX type locomotive, which comprises a tool base station, an inner hexagonal jackscrew and two lever lifting hooks, the tool base station comprises a cylindrical section, and two protruding lever lifting hook mounting seats are symmetrically arranged on the upper portion of the cylindrical section. The lever lifting hook is rotatably connected with the lever lifting hook mounting seat through a connecting piece, two long through grooves are vertically formed in the side part of the tool base table, the lower part of the lever lifting hook can be embedded into the long through grooves, a hook part is arranged at the tail end of the lower part of the lever lifting hook, a through threaded hole is formed in the central axis of the tool base table, and the inner hexagonal jackscrew is connected with the tool base table through the threaded hole. By means of the bushing dismounting tool, a bushing on a basic brake cylinder or a connecting rod of an HX type locomotive can be rapidly dismounted, the working efficiency is greatly improved, meanwhile, the completeness of the bushing in the dismounting process can be guaranteed, losses are reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical dismantling technology, and in particular to a tool suitable for removing the basic brake bushing of HX type locomotives. Technical Background

[0002] In the new stage of rapid development of railway construction, the requirements for locomotive maintenance are also gradually increasing. HX-type Harmony electric locomotives, such as HXD1, HCD1C, HXD1D, and HXD3D, are the main models of passenger and freight electric locomotives for Chinese railways. The basic brake of the HX-type locomotive, as a key component of the running gear, has always been one of the main tasks of the locomotive depot's maintenance workshop. However, the traditional method for removing the basic brake bushings of the HX-type locomotive involves forcibly removing them using tools such as screwdrivers and pry bars. This not only requires multiple tools but also makes the removal process complex. Furthermore, the connecting rod is easily damaged during removal, rendering the parts unusable due to human error. Therefore, there is an urgent need for a bushing removal tool suitable for the basic brake of the HX-type locomotive to improve the efficiency and time of bushing maintenance. Utility Model Content

[0003] The purpose of this utility model is to provide a tool for removing the basic brake bushing of HX type locomotives, so as to solve the problems of traditional HX type locomotive basic brake bushings being difficult to remove, taking a long time to remove, and being very easy to damage the bushing during the removal process.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A tool for removing the basic brake bushing of an HX type locomotive includes a tooling base, an internal hexagonal set screw, and two lever hooks. The tooling base includes a cylindrical section, with two protruding lever hook mounting seats symmetrically arranged on the upper part of the cylindrical section. The lever hooks are rotatably connected to the lever hook mounting seats via connectors. Two long through slots are vertically arranged on the side of the tooling base, and the lower part of the lever hook can be embedded in the long through slot. The lower end of the lever hook is provided with a hook portion. A through threaded hole is provided on the central axis of the tooling base, and the internal hexagonal set screw is connected to the tooling base through the threaded hole.

[0006] Furthermore, the lever hook mounting base consists of a pair of parallel protrusions, and each of the two protrusions has a through hole. The lever hook is mounted between the two protrusions via a connector.

[0007] Preferably, the connecting component is a pin, the through hole is a pin hole, and the lever hook is connected to the tooling base by a pin.

[0008] The lever hook can be connected to the tooling base by screws, pins, rivets or other methods. Pin connection is preferred because it is simpler and does not take up space.

[0009] Furthermore, the depth of the long through groove is greater than the width of the lever hook. If the depth of the long through groove is too shallow, the lever hook will be exposed on the side of the tooling base, making it difficult to insert the cylindrical section of the tooling base into the bushing hole.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] Traditional methods and tools for removing bushings from the basic brake of HX locomotives require screwdrivers, pry bars, and other tools, necessitating complex and potentially damaging the cylinder or connecting rod, rendering parts unusable. This invention significantly simplifies the replacement process, improves efficiency, reduces wear and tear on parts, and minimizes reliance on general-purpose tools. It also reduces the workload for workers, increases the efficiency of independent repair of HX locomotive basic brakes, and lowers maintenance costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the tooling base structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the lever hook structure of this utility model;

[0015] Figure 4 This is a schematic diagram showing the positional relationship between the present invention and the bushing before use;

[0016] Figure 5 This is a schematic diagram showing the relationship between the present invention and the bushing position during use;

[0017] Reference numerals in the attached drawings: 1. Tooling base; 1-1. Cylindrical section; 1-2. Lever hook mounting seat; 1-2-1. Protrusion; 1-2-2. Pin hole; 1-3. Long through groove; 1-4. Threaded hole; 2. Lever hook; 2-1. Handle; 2-2. Hook; 2-3. Round hole; 3. Socket head screw; 4. Pin; 5. Bushing; 5-1. Bushing hole. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figures 1 to 3 As shown, a tool for removing the basic brake bushing of HX type locomotive consists of a tooling base 1, an internal hexagonal set screw 3, two lever hooks 2, and a pin 4.

[0020] The tooling base 1 is divided into upper and lower sections. The lower section is a cylindrical section 1-1, which is used to insert into the bushing hole 5-1. The upper part of the cylindrical section 1-1 is symmetrically provided with two protruding lever hook mounting seats 1-2. Each lever hook mounting seat 1-2 is composed of a pair of protrusions 1-2-1. The two protrusions 1-2-1 are arranged vertically and parallel with a gap in the middle. The gap is used to install the lever hook 2. Each protrusion 1-2-1 is provided with a pin hole 1-2-2. The lever hook 2 is also provided with a round hole 2-3 of a larger diameter. The lever hook 2 is connected to the two protrusions 1-2-1 by a pin shaft 4. The pin shaft 4 passes through the pin hole 1-2-2 on the protrusion 1-2-1 and the round hole 2-3 on the lever hook 2, so that the lever hook 2 is rotatably connected to the tooling base 1.

[0021] In this embodiment, as Figure 3 As shown, the lever hook 2 is in the shape of a bent rod with a bending angle of approximately 110°. The bending point is the fulcrum for the rotation of the lever hook. A circular hole 2-3 is provided at the bending point. The upper part of the lever hook 2 is a grip section 2-1, which is relatively short and used for gripping. The lower part of the lever hook 2 is longer, and a hook section 2-2 is provided at the lower end, extending beyond the bottom of the cylindrical section 1-1. Furthermore, the lever hook 2 in this invention can be manufactured by laser cutting to form a square cross-section, or by bending steel bars to form a circular cross-section. In this embodiment, the former is used.

[0022] Meanwhile, two vertical through slots 1-3 are provided on both sides of the tooling base 1, and the two through slots 1-3 are aligned with the gaps between the two protrusions 1-2-1, that is, aligned with the installation position of the lever hook 2. The width of the through slots 1-3 is greater than the gap between the two protrusions 1-2-1, and the depth of the through slots 1-3 is greater than the width of the lower part of the lever hook 2. When the lower part of the lever hook 2 is rotated to a vertical angle or a negative angle, it can be embedded in the through slots 1-3, so that the tooling base 1 can be smoothly inserted into the bushing hole 5-1.

[0023] Meanwhile, a through threaded hole 1-4 is provided at the central axis position of the tooling base 1, and the internal hexagon set screw 3 is threadedly connected to the tooling base 1 through the threaded hole 1-4.

[0024] Instructions for the working principle or method of this utility model:

[0025] This utility model adopts the lever principle, with the bending point of the lever hook 2 serving as the lever fulcrum, and a long through groove 1-3 is provided on the tooling base 1, such as... Figure 4 and Figure 5 As shown, before inserting the lever hook 2 into the bushing hole 5-1, hold the lever hook 2 handle 2-1 to adjust the angle of the lever hook 2 so that the lower part of the lever hook 2 is embedded in the long through groove 1-3 on the side of the tooling base 1. Then insert the tooling base 1 into the bushing hole 5-1, pinch the lever hook 2 handle 2-1 with your hand so that the hook 2-2 is locked in the lower edge of the bushing 5. Then tighten the internal hexagon set screw 3 to bring out the tooling base 1, lever hook 2 and bushing 5 together.

[0026] It should be noted that the bushing 5 mentioned in this embodiment refers to the bushing 5 on the cylinder body or connecting rod of the HX type locomotive basic brake, but it does not limit the present invention to the removal of the bushing 5 on the cylinder body or connecting rod of the HX type locomotive basic brake. It may also be applicable to the removal of the bushing 5 on other mechanical devices. Moreover, the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tool for removing the basic brake bushing of an HX type locomotive, characterized in that, The fixture includes a tooling base, an internal hexagonal set screw, and two lever hooks. The tooling base includes a cylindrical section, and two protruding lever hook mounting seats are symmetrically arranged on the upper part of the cylindrical section. The lever hooks are rotatably connected to the lever hook mounting seats through connectors. Two long through slots are vertically arranged on the side of the tooling base, and the lower part of the lever hook can be embedded into the long through slot. The lower end of the lever hook is provided with a hook. A through threaded hole is provided on the central axis of the tooling base, and the internal hexagonal set screw is connected to the tooling base through the threaded hole.

2. The HX type locomotive basic brake bushing removal tool according to claim 1, characterized in that, The lever hook mounting base consists of a pair of parallel protrusions, and each of the two protrusions has a through hole. The lever hook is mounted between the two protrusions via a connector.

3. The HX type locomotive basic brake bushing removal tool according to claim 2, characterized in that, The connector is a pin, and the through hole is a pin hole.

4. The HX type locomotive basic brake bushing removal tool according to claim 1, characterized in that, The depth of the long through groove is greater than the width of the lever hook.

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