Disassembling tool for railway vehicle air spring and operation method

Abstract

The invention relates to the technical field of railway vehicle maintenance, and particularly discloses a disassembling tool for an air spring of a railway vehicle and an operation method, and the disassembling tool for the air spring of the railway vehicle comprises a disc main body, a first upwarping piece and a second upwarping piece. When in use, the first upwarping piece is matched with the first supporting convex edge to upwarp one side of the disc main body, and the second upwarping piece is matched with the second supporting convex edge to upwarp the other side of the disc main body, so that the disc main body is separated from the train running part, and then a height adjusting pad with a specified thickness is inserted; therefore, the purpose of adjusting the distance between the air spring and the train running gear is achieved. According to the disassembling tool for the air spring of the railway vehicle, due to the fact that the first tilting piece and the second tilting piece are both located on the outer side of the train running gear, operation is convenient, working efficiency is high, and the problems that in the prior art, when a height adjusting pad needs to be added to the railway vehicle, operation is difficult, and efficiency is low are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle maintenance technology, and in particular to a disassembly tool and operation method for air springs in rail vehicles. Background Technology

[0002] Wheels are a critical component for the high-speed and reliable operation of rail vehicles. Over long-term operation, when the tread wears to a certain extent, periodic wheel turning is necessary to restore the original wheel tread shape and curve in order to maintain wheel-rail relationship and ensure the safe and stable operation of the rail vehicle. After wheel turning, the wheel diameter decreases, and the overall vehicle height is lowered. To maintain a constant overall vehicle height, a height adjustment pad needs to be added under the air spring seat plate. This requires lifting the vehicle, raising the air springs, and then adding the height adjustment pad underneath them.

[0003] In existing technology, two threaded holes are usually machined on both sides of the side beam, and the air spring is lifted by the reaction force of the bolts, with a height adjustment pad added. Due to the limited space inside the side beam, it is inconvenient to twist the bolts; and the bolts on both sides require two people to operate simultaneously to lift the air spring, which is demanding, time-consuming, and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a disassembly fixture and operation method for air springs in rail vehicles, so as to solve the problem of difficult operation and low efficiency when adding height adjustment pads to rail vehicles in the prior art.

[0005] On one hand, the present invention provides a disassembly fixture for an air spring in a rail vehicle. The fixture includes: a disc body connecting the air spring and the train running gear of the rail vehicle and supporting the air spring; a first support flange and a second support flange on each side of the disc body; a first lifting member located outside the train running gear and facing the first support flange, which engages with the first support flange to lift one side of the disc body; and a second lifting member located outside the train running gear and facing the second support flange, which engages with the second support flange to lift the other side of the disc body. After the first and second lifting members lift both sides of the disc body, a height adjustment pad of a specified thickness is inserted to adjust the distance between the air spring and the train running gear.

[0006] As an optional technical solution for disassembling air springs for rail vehicles, the included angle between the first support flange and the second support flange is 180°.

[0007] As an optional technical solution for disassembling air springs in rail vehicles, the first support flange is rectangular in shape, with a length of 48mm-52mm and a width of 10mm-12mm; and / or,

[0008] The second support protrusion is rectangular in shape, with a length of 48mm-52mm and a width of 10mm-12mm.

[0009] As an optional technical solution for disassembling air springs in rail vehicles, the disc body has a first positioning hole, the air spring seat of the train running gear has a second positioning hole, and the height adjustment pad has a third positioning hole, with the central axes of the first positioning hole, the second positioning hole, and the third positioning hole aligned.

[0010] As an optional technical solution for disassembling air springs of rail vehicles, the first lifting component includes a pad and a pry bar. The pad is fixed to the train running part and faces the first support flange. The pad is located at the bottom of the pry bar to support the pry bar. One end of the pry bar is inserted into the bottom of the first support flange and abuts against the first support flange. The pry bar is used to lift one side of the disc body.

[0011] As an optional technical solution for disassembling air springs in rail vehicles, the disc body has a central hole through which the central positioning shaft of the air spring passes.

[0012] As an optional technical solution for disassembling air springs for rail vehicles, the disassembly tooling for rail vehicle air springs also includes multiple fasteners, and the disc body also has multiple mounting holes. The multiple mounting holes are distributed circumferentially along the central hole. The fasteners pass through the mounting holes and are connected to the air spring seat of the train running gear. The multiple fasteners and the multiple mounting holes are set in a one-to-one correspondence.

[0013] As an optional technical solution for disassembling air springs for rail vehicles, the height adjustment pad has a mounting groove through which the central positioning shaft of the air spring passes.

[0014] On the other hand, the present invention provides an operation method for a disassembly fixture for air springs in rail vehicles, applicable to any of the above-mentioned solutions for disassembling air springs in rail vehicles, the operation method for the disassembly fixture for air springs in rail vehicles comprising:

[0015] Loosen the connecting bolts between the disc body and the train running gear;

[0016] The first lifting member is inserted into the bottom of the first support protrusion to lift one side of the disk body, and the second lifting member is inserted into the bottom of the second support protrusion to lift the other side of the disk body, so that the air spring is separated from the train running part.

[0017] Insert the height adjustment pad of the specified thickness;

[0018] Loosen the first and second lifting members so that the disk body abuts against the height adjustment pad;

[0019] Tighten the connecting bolts between the disc body and the train running gear.

[0020] As an optional technical solution for the operation method of the disassembly tooling for air springs in rail vehicles, inserting the height adjustment pad of a specified thickness further includes:

[0021] Insert the mounting groove of the height adjustment pad into the center positioning shaft of the air spring;

[0022] Align the central axis of the third positioning hole of the height adjustment pad with the central axis of the first positioning hole of the disc body and the central axis of the second positioning hole of the air spring seat of the train running part.

[0023] The beneficial effects of this invention are as follows:

[0024] This invention provides a disassembly fixture for air springs in rail vehicles. The fixture includes a disc body, a first lifting member, and a second lifting member. The disc body has a first supporting flange and a second supporting flange on each side. Using this fixture, the first lifting member engages with the first supporting flange to lift one side of the disc body, and the second lifting member engages with the second supporting flange to lift the other side. This separates the disc body from the train running gear, allowing the insertion of a height adjustment pad of a specified thickness to adjust the distance between the air spring and the train running gear. This invention avoids the problem of using bolt reaction force to lift the air spring, which makes torturing the bolts inconvenient. With this fixture, since both the first and second lifting members are located on the outside of the train running gear, operation is convenient and efficient, effectively solving the problem of difficult and inefficient operation when adding height adjustment pads to rail vehicles. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the disk body in an embodiment of the present invention;

[0026] Figure 2This is a schematic diagram of the structure of the air spring, the disc body, and the train running gear after installation in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the air spring, the main body of the disc, the first lifting member, the second lifting member, and the train running gear after installation in an embodiment of the present invention;

[0028] Figure 4 This is an exploded view of the air spring, the main body of the disc, the first lifting member, the second lifting member, and the train running gear in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the height adjustment pad in an embodiment of the present invention.

[0030] In the picture:

[0031] 1. Circular body; 11. First support flange; 12. Second support flange; 13. First positioning hole; 14. Center hole; 15. Mounting hole;

[0032] 2. First lifting component; 21. Pad block; 22. Crowbar;

[0033] 3. Second raised component;

[0034] 4. Height adjustment pad; 41. Third positioning hole; 42. Mounting groove;

[0035] 5. Air spring;

[0036] 6. Train running gear. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0041] like Figures 1 to 5As shown, this embodiment provides a disassembly fixture for an air spring in a rail vehicle. The fixture includes a disc body 1, a first lifting member 2, and a second lifting member 3. The disc body 1 connects the air spring 5 of the rail vehicle to the train running gear 6 and supports the air spring 5. The disc body 1 has a first support flange 11 and a second support flange 12 on its two sides. The first lifting member 2 is located outside the train running gear 6 and faces the first support flange 11. The first lifting member 2 engages with the first support flange 11 to lift one side of the disc body 1. The second lifting member 3 is located outside the train running gear 6 and faces the second support flange 12. The second lifting member 3 engages with the second support flange 12 to lift the other side of the disc body 1. After the first and second lifting members 2 and 3 lift both sides of the disc body 1, a height adjustment pad 4 of a specified thickness is inserted to adjust the distance between the air spring 5 and the train running gear 6.

[0042] The disassembly fixture for air springs in rail vehicles according to the present invention, in use, involves engaging the first lifting member 2 with the first supporting flange 11 to lift one side of the disc body 1, and engaging the second lifting member 3 with the second supporting flange 12 to lift the other side of the disc body 1. This separates the disc body 1 from the train running gear 6. Then, a height adjustment pad 4 of a specified thickness is inserted to adjust the distance between the air spring 5 and the train running gear 6. The present invention eliminates the problem of using bolt reaction force to lift the air spring 5 in the prior art, which makes torsion bolts inconvenient. With the first lifting member 2 and the second lifting member 3 both located on the outside of the train running gear 6, the disassembly fixture for air springs in rail vehicles is convenient to operate and highly efficient, effectively solving the problem of difficult and inefficient operation when adding a height adjustment pad 4 to rail vehicles in the prior art.

[0043] In some embodiments, the included angle between the first support flange 11 and the second support flange 12 is 180°. This makes the first support flange 11 and the second support flange 12 located on the two sides of the disk body 1 with the largest distance, which facilitates the cooperation between the first lifting member 2 and the first support flange 11 and the second lifting member 3 and the second support flange 12.

[0044] In this embodiment, the shape of the first support flange 11 includes, but is limited to, a rectangle, with a length of 48mm-52mm and a width of 10mm-12mm. This configuration allows it to match the dimensions of the first lifting member 2, facilitating its operation; and / or,

[0045] The shape of the second support flange 12 is, but is not limited to, a rectangle, with a length of 48mm-52mm and a width of 10mm-12mm. This configuration allows it to match the dimensions of the second lifting member 3, facilitating its operation.

[0046] In some embodiments, the disc body 1 has a first positioning hole 13, the air spring 5 seat of the train running section 6 has a second positioning hole, and the height adjustment pad 4 has a third positioning hole 41. This arrangement ensures that during installation, the central axes of the first positioning hole 13, the second positioning hole, and the third positioning hole 41 are aligned, thereby guaranteeing that the height adjustment pad 4 can be accurately positioned between the disc body 1 and the air spring seat of the train running section 6, thus achieving the purpose of adjusting the distance between the air spring 5 and the train running section 6.

[0047] In this embodiment, the first lifting member 2 includes a pad 21 and a pry bar 22. The pad 21 is fixed to the train running part 6 and faces the first support flange 11. The pad 21 is located at the bottom of the pry bar 22 to support the pry bar 22. At the same time, one end of the pry bar 22 is inserted into the bottom of the first support flange 11 and abuts against the first support flange 11. In this way, one side of the disc body 1 can be lifted by using the pry bar 22.

[0048] Similarly, the structure of the second lifting member 3 is the same as that of the first lifting member 2, so that the pad and pry bar of the second lifting member 3 can be used to lift the other side of the disc body 1.

[0049] In some embodiments, the disk body 1 has a central hole 14 through which the central positioning shaft of the air spring 5 passes. This allows the disk body 1 to be positioned.

[0050] Furthermore, the disassembly fixture for the air spring 5 of the rail vehicle also includes multiple fasteners, and the disc body 1 also has multiple mounting holes 15. The multiple mounting holes 15 are distributed circumferentially along the central hole 14. The fasteners are passed through the mounting holes 15 and connected to the air spring 5 seat of the train running part 6. The multiple fasteners and the multiple mounting holes 15 are arranged in a one-to-one correspondence.

[0051] Specifically, the height adjustment pad 4 has a mounting groove 42 through which the central positioning shaft of the air spring 5 passes. This ensures that the height adjustment pad 4 can be accurately and quickly inserted into the central positioning shaft of the air spring 5.

[0052] This embodiment also provides an operation method for disassembling a rail vehicle air spring using a disassembly fixture. Applied to the disassembly fixture for rail vehicle air springs described above, the operation method includes: first, loosening the connecting bolts between the disc body 1 and the train running section 6; then, inserting the first lifting member 2 into the bottom of the first support flange 11 to lift one side of the disc body 1, and inserting the second lifting member 3 into the bottom of the second support flange 12 to lift the other side of the disc body 1, thus separating the air spring 5 from the train running section 6; inserting a height adjustment pad 4 of a specified thickness; then, loosening the first lifting member 2 and the second lifting member 3 to allow the disc body 1 to contact the height adjustment pad 4; finally, tightening the connecting bolts between the disc body 1 and the train running section 6, thereby completing the addition of the height adjustment pad 4. The operation method of the disassembly tool for air springs of rail vehicles using the present invention makes the addition of height adjustment pad 4 more convenient, shorter in operation time, and more efficient, effectively solving the problem of difficult operation and low efficiency when adding height adjustment pad 4 to rail vehicles in the prior art.

[0053] Furthermore, inserting the height adjustment pad 4 of a specified thickness also includes: inserting the mounting groove 42 of the height adjustment pad 4 into the central positioning shaft of the air spring 5; aligning the central axis of the third positioning hole 41 of the height adjustment pad 4 with the central axis of the first positioning hole 13 of the disc body 1 and the second positioning hole of the air spring 5 seat of the train running section 6. This allows the height adjustment pad 4 to be accurately and quickly inserted into the central positioning shaft of the air spring 5.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A disassembly fixture for air springs in rail vehicles, characterized in that, include: The disc body (1) can connect the air spring (5) of the rail vehicle and the train running part (6) and is used to support the air spring (5). The disc body (1) has a first support flange (11) and a second support flange (12) on both sides respectively. The first lifting member (2) is located on the outside of the train running section (6) and faces the first support flange (11). The first lifting member (2) can cooperate with the first support flange (11) to lift one side of the disk body (1). The second lifting member (3) is located on the outside of the train running section (6) and faces the second support flange (12). The second lifting member (3) can cooperate with the second support flange (12) to lift the other side of the disk body (1). The first lifting member (2) and the second lifting member (3) lift up both sides of the disc body (1) and insert a height adjustment pad (4) of a specified thickness to adjust the distance between the air spring (5) and the train running part (6).

2. The disassembly fixture for air springs in rail vehicles according to claim 1, characterized in that, The included angle between the first support protrusion (11) and the second support protrusion (12) is 180°.

3. The disassembly fixture for air springs in rail vehicles according to claim 1, characterized in that, The first support flange (11) is rectangular in shape, with a length of 48mm-52mm and a width of 10mm-12mm; and / or, The second support protrusion (12) is rectangular in shape, with a length of 48mm-52mm and a width of 10mm-12mm.

4. The disassembly fixture for air springs in rail vehicles according to claim 1, characterized in that, The disc body (1) has a first positioning hole (13), the air spring seat of the train running part (6) has a second positioning hole, and the height adjustment pad (4) has a third positioning hole (41). The central axes of the first positioning hole (13), the second positioning hole and the third positioning hole (41) are aligned.

5. The disassembly fixture for air springs in rail vehicles according to claim 1, characterized in that, The first lifting member (2) includes a pad (21) and a crowbar (22). The pad (21) is fixed to the train running part (6) and faces the first support flange (11). The pad (21) is located at the bottom of the crowbar (22) to support the crowbar (22). One end of the crowbar (22) is inserted into the bottom of the first support flange (11) and abuts against the first support flange (11). The crowbar (22) is used to lift one side of the disc body (1).

6. The disassembly fixture for air springs in rail vehicles according to claim 1, characterized in that, The disk body (1) has a central hole (14), through which the central positioning shaft of the air spring (5) passes.

7. The disassembly fixture for air springs in rail vehicles according to claim 6, characterized in that, The disassembly fixture for the air spring (5) of the rail vehicle also includes a number of fasteners. The disc body (1) also has a number of mounting holes (15). The number of mounting holes (15) are distributed circumferentially along the central hole (14). The fasteners pass through the mounting holes (15) and are connected to the air spring (5) seat of the train running part (6). The number of fasteners and the number of mounting holes (15) are set one-to-one.

8. The disassembly fixture for air springs in rail vehicles according to claim 1, characterized in that, The height adjustment pad (4) has a mounting groove (42) through which the central positioning shaft of the air spring (5) passes.

9. A method for operating a disassembly fixture for air springs in rail vehicles, characterized in that, The disassembly fixture for air springs in rail vehicles according to any one of claims 1-8, wherein the operation method of the disassembly fixture for air springs in rail vehicles includes: Loosen the connecting bolts between the disc body (1) and the train running gear (6); Insert the first lifting member (2) into the bottom of the first support flange (11) to lift one side of the disk body (1), and insert the second lifting member (3) into the bottom of the second support flange (12) to lift the other side of the disk body (1), so that the air spring (5) is separated from the train running part (6). Insert the height adjustment pad (4) of the specified thickness; Release the first lifting member (2) and the second lifting member (3) so that the disc body (1) abuts against the height adjustment pad (4); Tighten the connecting bolts of the disc body (1) and the train running gear (6).

10. The operation method of the disassembly fixture for air springs in rail vehicles according to claim 9, characterized in that, Inserting the height adjustment pad (4) of a specified thickness further includes: Insert the mounting groove (42) of the height adjustment pad (4) into the center positioning shaft of the air spring (5); Align the central axis of the third positioning hole (41) of the height adjustment pad (4) with the central axis of the first positioning hole (13) of the disc body (1) and the central axis of the second positioning hole of the air spring seat of the train running part (6).

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