A split anti-roll device mounting seat for a rail vehicle and its mounting structure

Abstract

The present invention discloses a split anti-roll device mounting seat for a rail vehicle and its mounting structure, which includes a mounting seat body (13), a first fastener (12) and a first connecting block (15). The mounting seat body (13), the first fastener (12) and the first threaded block connecting block (15) are all independent components. A connection part for the anti-roll device is arranged in the middle of the mounting seat body, and mounting parts are arranged on both sides. The mounting parts and the first connecting block are detachably connected by the first fastener (12). The structure of the present invention is simple, convenient for maintenance, safe and reliable.

Description

Technical Field

[0001] The present invention relates to a car body of a rail vehicle, in particular to a split anti-roll device mounting seat for a rail vehicle and its mounting structure. Background Art

[0002] With the development of society, the speed of rail vehicles is constantly increasing, and people's requirements for the safety and comfort of rail vehicles are getting higher and higher. The anti-roll device of a train is an important means to ensure the safety and comfort of train operation.

[0003] Currently, the commonly used anti-roll device mounting seats are mostly aluminum alloy welded parts, with complex structures and dense welds, resulting in difficulties in meeting the standard requirements for the static strength and fatigue strength of the underframe, and large welding workload, large welding deformation, and inconvenience in subsequent maintenance and replacement. In addition, when the train is running, the anti-roll device mounting seat and its connecting welds bear dynamic loads, and very high requirements are imposed on their strength, stiffness and fatigue performance. Since the allowable stress and strength limit of the weld are much lower than those of the base metal, there are certain potential safety hazards. Summary of the Invention

[0004] The technical problem to be solved by the present invention is, in view of the deficiencies that the dense welds of the anti-roll device mounting seat of the existing rail vehicle are likely to cause a series of problems, to provide a split anti-roll device mounting seat for a rail vehicle and its mounting structure with high strength, high stiffness, fatigue resistance, simple structure, and convenient maintenance.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A split anti-roll device mounting seat includes a mounting seat body, a first fastener, and a first connecting block. The mounting seat body, the first fastener, and the first connecting block are all independent components. An anti-roll device connecting part is arranged in the middle of the mounting seat body, and mounting parts are arranged on both sides. The mounting parts are detachably connected to the first connecting block through the first fastener.

[0007] The split anti-roll device mounting seat of the present invention includes an independently arranged mounting seat body, a first fastener, and a first connecting block. The mounting seat body is detachably mounted on the car body bolster through the first fastener and the first connecting block, which not only meets the requirements for the high strength, high stiffness and fatigue performance of the anti-roll device mounting seat, can ensure the safe and stable operation of the high-speed EMU, but also has a simpler and more reliable mounting interface for the anti-roll device mounting seat and more convenient subsequent maintenance.

[0008] Preferably, a plurality of first bolt holes for the first fastener to pass through are arranged on the mounting part, threaded holes matching the first bolt holes are arranged on the first connecting block, and the first fastener passes through the first bolt holes and is connected to the threaded holes on the first connecting block.

[0009] Preferably, a plurality of anti-roll device connection holes are provided on the anti-roll device connection part, a second connection block is arranged on the back surface of the mounting seat body, and threaded holes for connecting the anti-roll device are provided on the second connection block.

[0010] Preferably, the anti-roll device connection holes are waist-shaped holes.

[0011] Preferably, the anti-roll device connection part protrudes from the installation part, and a connection block storage bin for placing the second connection block is arranged on the back surface of the mounting seat body.

[0012] Preferably, partition ribs are arranged in the connection block storage bin.

[0013] Preferably, the installation part and the anti-roll device connection part are connected by a fillet.

[0014] Preferably, the two installation parts are connected by a connecting rib.

[0015] Preferably, the first connection block and the first fastener are made of the same material.

[0016] Based on the same inventive concept, the present invention also provides an anti-roll device installation structure for a rail vehicle, which includes a bolster, an anti-roll device, and the anti-roll device mounting seat described above. The first connection block is installed inside the bolster, the anti-roll device mounting seat is placed on the side of the bolster, and the anti-roll device is detachably installed on the anti-roll device connection part through a second fastener.

[0017] Preferably, a connection block entrance is provided on the upper surface of the bolster, and a sealing plate is configured for the connection block entrance. After the first connection block is placed inside the bolster, the sealing plate covers the connection block entrance.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The anti-roll device mounting seat of the present invention is a bolt connection structure, and the mounting seat body, the first connection block, and the first fastener are all made of steel, having high strength, high hardness, and excellent fatigue resistance.

[0020] 2. The sealing plate of the present invention is made of an aluminum alloy plate, and the sealing plate and the bolster are detachably connected by bolts, fully considering the installation and disassembly and maintenance convenience of the entire structure of the anti-roll device.

[0021] 3. When in use, the load borne by the anti-roll device of the car body bogie is transmitted to the anti-roll device mounting seat, and then transmitted to the car body bolster, buffer beam, etc., so that the load transmission process does not require a weld to bear, greatly improving the load-bearing capacity of the entire structure.

[0022] 4. The anti-roll device mounting seat of the present invention has a simple structure, and its strength, rigidity and fatigue performance meet the standard requirements of the vehicle body, and it has good maintainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the installation state of the rail vehicle anti-roll device of the present invention.

[0025] Figure 2 It is a schematic diagram of the installation state of the split anti-roll device mounting seat of the rail vehicle of the present invention.

[0026] Figure 3 This is an enlarged view of the installation state of the rail vehicle anti-roll device of the present invention.

[0027] Figure 4 It is a structural explosion diagram of the mounting seat of the split anti-roll device for rail vehicles of the present invention.

[0028] Figure 5 It is a schematic diagram of the back structure of the mounting seat body of the rail vehicle split anti-roll device mounting seat of the present invention.

[0029] Figure 6 It is a front structural schematic diagram of the mounting seat body of the rail vehicle split anti-roll device mounting seat of the present invention.

[0030] Figure 7 This is a diagram showing the combined state of the mounting seat body of the split anti-roll device mounting seat for rail vehicles of the present invention and the first connecting block embedded in the bolster.

[0031] In the figure: 1-second connecting block; 2-sealing plate; 3-body side beam; 4-body pillow beam; 5-anti-roll device; 12-first fastener; 13-mounting seat body; 13a-bolt hole; 13b-connecting block storage bin; 13c-bolt waist hole; 13d-partition rib; 13e-connecting rib; 13f-rounded corner; 14-connecting block entrance; 15-first connecting block. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0033] For the sake of convenience in description, the relative positional relationships of various components, such as the descriptions of up, down, left, right, etc., are all made according to the layout direction of the drawings in the specification, and do not limit the structure of this patent.

[0034] Please refer to Figure 1 - Figure 7 , an embodiment of the mounting seat and mounting structure of the split anti-roll device for rail vehicles of the present invention includes an independently provided mounting seat body 13, a first fastener 12, and a first connecting block 15. The mounting seat body 13, the first fastener 12, and the first connecting block 15 are all machined from high-strength steel (such as 30CrMo steel) with a tensile strength sb>1200 MPa, and have excellent strength, stiffness, and fatigue performance.

[0035] An anti-roll device connecting portion 131 is provided in the middle of the mounting seat body 13, and mounting portions 132 are provided on both sides. A plurality of anti-roll device connecting holes 13c are provided on the anti-roll device connecting portion 131. A second connecting block 1 is arranged on the back of the anti-roll device connecting hole 13c. Threaded holes matching the anti-roll device connecting holes 13c are provided on the second connecting block 1. A second fastener 6 on the anti-roll device 5 passes through the anti-roll device connecting hole 13c and is tightly connected to the threaded hole on the second connecting block 1. The anti-roll device connecting hole 13c is preferably an oval hole. In this embodiment, a plurality of anti-roll device connecting holes 13c are distributed in two rows, upper and lower, on the anti-roll device connecting portion 131, and the anti-roll device connecting holes 13c in the upper row correspond to the anti-roll device connecting holes 13c in the lower row one by one.

[0036] To facilitate the installation of the anti-roll device 5 and the mounting seat body 13 on the side of the car body bolster 4, the anti-roll device connecting portion 131 protrudes outward from the mounting portion 132, and a connecting block storage bin 13b for placing the second connecting block 1 is provided on the back of the mounting seat body 13. A partition rib 13d is provided in the connecting block storage bin 13b. The partition rib 13d not only strengthens the strength of the anti-roll device mounting seat body 13, but also serves as a stop when the second connecting block 1 rotates, solving the problem that the second connecting block 1 matching the second fastener 6 cannot be clamped due to insufficient operating space during the tightening process of the second fastener 6 of the bogie anti-roll device 5.

[0037] A plurality of first bolt holes 13a are provided on the mounting portion 132. Threaded holes matching the first bolt holes 13a are provided on the first connecting block 15. The first fastener 12 passes through the first bolt hole 13a and is tightly connected to the threaded hole on the first connecting block 15. The first fastener 12 is preferably a steel fastener.

[0038] In order to meet the strength requirement of the anti-roll device mounting seat body 13 , the mounting portion 132 is connected to the anti-roll device connecting portion 131 via a rounded corner 13 f.

[0039] In order to improve the strength of the mounting seat body 13, the two mounting parts 132 are connected by a connecting rib 13e. At the same time, the anti-roll device mounting seat body 13 is designed to be as lightweight as possible, that is, the connecting rib 13e adopts the minimum rib that meets the strength requirement.

[0040] The first connection block 15 is made of high-strength steel (such as 30CrMo steel) through machining and is subjected to blackening and anti-corrosion treatment. The first connection block 15 is provided with a mounting seat body connection part 151 and a bolster connection part 152. The mounting seat body connection part 151 and the bolster connection part 152 are respectively provided with a row of threaded holes. The threaded holes on the mounting seat body connection part 151 are used for connecting the first connection block 15 with the mounting seat body 13, and the threaded holes on the bolster connection part 152 are used for connecting the first connection block 15 with the body bolster 4 through screws. The first connection block 15 is designed to be lightweight. For example, the thickness of the mounting seat body connection part 151 of the first connection block 15 is greater than the thickness of its bolster connection part 152 as needed. The first connection block 15 is pre-buried in the body bolster 4. When the bolster 4 is assembled, the first connection block 15 is installed in advance, wherein the first connection block 15 passes through the connection block entrance 14 on the body bolster 4 and is inserted into the body bolster 4 and fixed. The first connection block 15 and the first fastener 12 are used in combination, and the first connection block 15 and the first fastener 12 are made of the same material to avoid electrochemical corrosion of dissimilar metals.

[0041] The installation structure of the anti-roll device for railway vehicles of the present invention includes the car body bolster 4, the anti-roll device 5 and the anti-roll device mounting seat. A connection block inlet 14 is provided on the upper surface of the bolster 4, and a connection block accommodation cavity is provided inside the bolster 4. And the connection block inlet 14 is configured with a sealing plate 2. The material of the sealing plate 2 is aluminum alloy (such as EN 6082-T651). When the anti-roll device mounting seat is installed, first place the first connection block 15 into the connection block accommodation cavity inside the bolster 4 through the connection block inlet 14, and use the first fastener 12 to connect the mounting seat body 13 and the first connection block 15. Then, pass the second fastener 6 on the anti-roll device 5 through the anti-roll device connection hole 13c and firmly connect it to the second connection block 1 located on the back of the mounting seat body 13, so that the anti-roll device 5 and the mounting seat body 13 can be firmly fixed to the side of the car body bolster 4 at the same time. Finally, cover the connection block inlet 14 with the sealing plate 2, and fasten the sealing plate 2 to the bolster 4 with the third fastener 7. After the sealing plate 2 is installed, its surface is not higher than the upper surface of the car body bolster 4. After the sealing plate 2 is installed, caulking treatment needs to be carried out around it to ensure that there is no gap between the sealing plate 2 and the car body bolster 4, prevent water and the like from entering the inside of the car body bolster 4, and at the same time, prevent the sealing plate 2 and the first connection block 15 inside the bolster 4 from loosening and falling into the track when the vehicle is running. The design of the connection block inlet 14 is to ensure the strength of the car body bolster 4 to the greatest extent and carry out a minimized design. The size of the connection block inlet 14 can only accommodate an adult to install and remove the first connection block 15.

[0042] When the vehicle is running, the load borne by the anti-roll device 5 of the bogie is transmitted to the car body bolster 4 through the anti-roll device mounting seat body 13.

[0043] The structure of the anti-roll device mounting seat of the present invention is ingeniously designed, convenient for installation and maintenance. The main structures are all made of alloy steel, and sufficient anti-corrosion treatment has been carried out. It has high strength, high stiffness, excellent fatigue resistance, and an excellent force conduction structure: the alloy steel bolt connection structure, which solves the problems of insufficient strength and stiffness of the traditional method of using welded aluminum alloy anti-roll device mounting seat structure, the existence of dense welds, the allowable stress of the welds is much lower than that of the base material, stress concentration at the welds, and the fatigue performance at the welds is difficult to meet the standard requirements.

[0044] The above is only the specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A split anti-roll device mounting seat for a rail vehicle, comprising a mounting seat body (13), characterized in that, It further includes a first fastener (12) and a first connection block (15). The mounting seat body (13), the first fastener (12), and the first connection block (15) are all independent components. A roll resisting device connection part (131) is arranged in the middle of the mounting seat body, and mounting parts (132) are arranged on both sides. The mounting parts and the first connection block are detachably connected by the first fastener (12); a plurality of first bolt holes (13a) for the first fastener to pass through are arranged on the mounting parts, threaded holes matching the first bolt holes are arranged on the first connection block, and after the first fastener passes through the first bolt holes, it is connected to the threaded holes on the first connection block; a plurality of roll resisting device connection holes (13c) are arranged on the roll resisting device connection part, a second connection block is arranged on the back surface of the mounting seat body, and threaded holes for connecting the roll resisting device (5) are arranged on the second connection block; the roll resisting device connection holes are waist-shaped holes; the roll resisting device connection part protrudes from the mounting part, and a connection block storage bin (13b) for placing the second connection block is arranged on the back surface of the mounting seat body, and partition ribs (13d) are arranged in the connection block storage bin.

2. The mounting seat of the split anti-roll device for rail vehicles according to claim 1, characterized in that, The mounting part and the roll resisting device connection part are connected by a fillet (13f).

3. The mounting seat of the split anti-roll device for rail vehicles according to claim 1, characterized in that, The two mounting parts are connected by a connection rib (13e).

4. The mounting seat of the split anti-roll device for rail vehicles according to claim 1, characterized in that, The first connection block and the first fastener are made of the same material.

5. A split anti-roll device installation structure for rail vehicles, characterized in that: It includes a bolster (4), a roll resisting device (5), and the roll resisting device mounting seat according to any one of claims 1 - 4. The first connection block (15) is installed inside the bolster, the roll resisting device mounting seat is placed on the side of the bolster, and the roll resisting device is detachably installed on the roll resisting device connection part by a second fastener.

6. The installation structure of the split anti-roll device for rail vehicles according to claim 5, characterized in that A connection block inlet (14) is arranged on the upper surface of the bolster, and a sealing plate (2) is configured for the connection block inlet. After the first connection block is placed inside the bolster, the sealing plate covers the connection block inlet.

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