Anti-roll mounts, underframe structures, and rail vehicles

Abstract

The present invention relates to the technical field of anti-roll torsion bar mounting structures, and provides an anti-roll mounting seat, a chassis structure, and a rail vehicle. The anti-roll mounting seat includes a main body profile and a fixing member, the main body profile includes a mounting plate, the mounting plate separates the main body profile into a first groove and a second groove, the mounting plate is provided with an anti-roll mounting hole, and the anti-roll mounting hole connects the first groove and the second groove; the fixing member is located in the second groove, the fixing member is provided with a fixing screw hole, the fixing screw hole is aligned with the anti-roll mounting hole, and the fixing member is suitable for being detachably connected to the mounting block of the anti-roll torsion bar located in the first groove by a bolt passing through the anti-roll mounting hole and threadedly connected to the fixing screw hole. The present invention effectively reduces the amount of welding and welding deformation, and has the advantage of lower installation requirements compared to the riveted mounting seat structure, which can reduce the difficulty of production and installation of the anti-roll mounting seat and reduce production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-roll torsion bar mounting structures, and in particular to an anti-roll mounting seat, an underframe structure and a rail vehicle. Background Art

[0002] The existing anti-roll mounting structure of rail vehicles mainly has the following two structural forms:

[0003] One is the plate welding structure, which is bulky and requires a lot of welding, resulting in uncontrollable deformation and difficult construction for workers;

[0004] Another approach is to use a riveted mounting base. This structure can solve the welding problem, but to ensure the quality of the riveting, it has high requirements for contact surface flatness, rivet hole coaxiality, and rivet sequence. Therefore, the riveted anti-roll mounting base also faces the problem of difficult construction by workers. Summary of the Invention

[0005] The present invention provides an anti-roll mounting seat, an underframe structure and a rail vehicle, which are used to solve the defect of difficult construction for workers in the anti-roll mounting seat structure used in the prior art, and realize easy production and installation of the anti-roll mounting seat.

[0006] The present invention provides an anti-roll mounting seat, comprising:

[0007] A main body profile, the main body profile comprising a mounting plate, the mounting plate dividing the main body profile into a first groove and a second groove, the mounting plate being provided with an anti-roll mounting hole, the anti-roll mounting hole communicating with the first groove and the second groove; and

[0008] A fixing member is located in the second groove, and the fixing member is provided with a fixing screw hole, which is aligned with the anti-roll mounting hole. The fixing member is suitable for being detachably connected to the mounting block of the anti-roll torsion bar located in the first groove by a bolt passing through the anti-roll mounting hole and threadedly connected to the fixing screw hole.

[0009] According to the anti-roll mounting seat provided by the present invention, the main body profile further includes a reinforcing rib integrally formed in the second groove, and two sides of the reinforcing rib are connected to the inner wall of the second groove.

[0010] According to an anti-roll mounting seat provided by the present invention, the mounting plate is provided with a maintenance hole, the maintenance hole connects the first groove and the second groove, and the maintenance hole is used for the fixing member to enter and exit between the first groove and the second groove.

[0011] According to the anti-roll mounting seat provided by the present invention, the fixing member is detachably connected to the main body profile.

[0012] According to an anti-roll mounting seat provided by the present invention, a first wing plate is provided on one side of the main body profile, and a second wing plate is provided on the other side. The first wing plate and the second wing plate extend in opposite directions. The first wing plate is suitable for connecting the bolster, the side beam and the floor, and the second wing plate is suitable for connecting the side beam and the floor.

[0013] According to the anti-roll mounting seat provided by the present invention, the main body profile is suitable for forming a first process hole with the bolster, the side beam and the floor, and is suitable for forming a second process hole with the side beam and the floor;

[0014] The first wing plate constitutes the bottom plate of the first process hole, and the second wing plate constitutes the bottom plate of the second process hole.

[0015] An anti-roll mounting seat provided according to the present invention further includes:

[0016] A first patch is fixedly connected to the main profile, the bolster, the side beam and the floor respectively, and is used to block the first process hole; and / or,

[0017] The second patch is fixedly connected to the main profile, the side beam and the floor respectively, and is used to block the second process hole.

[0018] An anti-roll mounting seat provided according to the present invention further includes:

[0019] a supporting rib, located on the side of the main profile away from the edge beam, the supporting rib being fixedly connected to the main profile and used to be fixedly connected to the floor; and / or,

[0020] The third patch is located at the opening of the second groove. The third patch is fixedly connected to the main profile and is suitable for being fixedly connected to at least one of the bolster, the side beam and the floor.

[0021] The present invention further provides a chassis structure comprising a bolster, side beams and a floor, wherein the bolster is vertically fixed to the side beams, and the floor is connected to the bolster and the side beams respectively. The chassis structure further comprises:

[0022] The above-mentioned anti-roll mounting seat is arranged at the angle formed by the bolster and the side beam, and is fixedly connected to the bolster, the side beam and the floor respectively.

[0023] The present invention further provides a rail vehicle, comprising an anti-roll torsion bar, wherein the anti-roll torsion bar comprises a mounting block, and the rail vehicle further comprises:

[0024] The above-mentioned anti-roll mounting seat, or the above-mentioned chassis structure.

[0025] The anti-roll mounting seat, chassis structure, and rail vehicle provided by the present invention utilize profiles as the main structure of the anti-roll mounting seat, effectively reducing welding effort and welding deformation, and offering the advantage of lower installation requirements compared to riveted mounting seat structures. Furthermore, the first groove of the main profile can be used to position the mounting block of the anti-roll torsion bar. The mounting block of the anti-roll torsion bar can be conveniently installed and secured by bolting the mounting block to the fixing member in the second groove. This effectively reduces the difficulty of manufacturing and installing the anti-roll mounting seat, thereby lowering production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0027] Figure 1 This is a schematic diagram of the vehicle upper side of the anti-roll mounting seat provided by the present invention in the installed state. Figure 1 Hide the first patch and the second patch;

[0028] Figure 2 This is a schematic diagram of the underside of a vehicle with the anti-roll mounting seat provided by the present invention in an installed state;

[0029] Figure 3 This is a three-dimensional diagram showing the main profile structure of the anti-roll mounting seat provided by the present invention;

[0030] Figure 4 is a cross-sectional view of the anti-roll mounting seat provided by the present invention along the vehicle width direction;

[0031] Figure 5 is a cross-sectional view of the anti-roll mounting seat provided by the present invention along the vehicle length direction;

[0032] Figure 6 This is one of the three-dimensional diagrams showing the coordination structure of the main body profile and the supporting rib plate of the anti-roll mounting seat provided by the present invention;

[0033] Figure 7 This is the second three-dimensional diagram of the anti-roll mounting seat provided by the present invention showing the coordination structure of the main body profile and the supporting rib plate;

[0034] Reference numerals:

[0035] 100. Main body profile; 110. Mounting plate; 111. Anti-roll mounting hole; 112. Maintenance hole; 113. Fastening through hole; 120. First side panel; 130. Second side panel; 131. First welding joint; 140. First groove; 150. Second groove; 160. Support rib; 161. Vertical rib; 162. Horizontal rib; 163. Second welding joint; 170. First wing panel; 180. Second wing panel; 190. Reinforcement rib; 200. Fixing piece; 210. Fastening screw hole; 220. Fastening bolt; 300. Pillar; 310. First process hole; 400. Side beam; 410. Second process hole; 500. Floor; 700. First patch panel; 800. Second patch panel; 900. Third patch panel. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] The following combination Figures 1 to 7 The present invention describes an anti-roll mount that can be installed on a chassis structure. Specifically, the chassis structure includes a bolster 300, a side rail 400, and a floor panel 500. The bolster 300 is arranged along the width of the vehicle body, and the side rail 400 is arranged along the length of the vehicle body. The bolster 300 and the side rail 400 are vertically fixed, and the floor panel 500 is fixedly connected to the side walls of the bolster 300 and the side rail 400, respectively. The floor panel 500 has an opening formed at a side angle formed by the bolster 300 and the side rail 400. The anti-roll mount of the present invention can be installed at the angle formed by the bolster 300 and the side rail 400 through this opening.

[0038] The anti-roll mounting seat according to an embodiment of the present invention includes a main body profile 100 and a fixing member 200 .

[0039] The main profile 100 includes a mounting plate 110, which divides the main profile 100 into a first groove 140 and a second groove 150. The first groove 140 and the second groove 150 open in opposite directions. When the anti-roll mount is installed on the chassis structure, the first groove 140 opens downward, and the second groove 150 opens upward. The mounting plate 110 is provided with an anti-roll mounting hole 111, which connects the first groove 140 and the second groove 150. The anti-roll mounting hole 111 can be a through hole or a threaded hole.

[0040] The fixing member 200 is located in the second groove 150. The fixing member 200 is provided with a fixing screw hole (not shown in the figure). The fixing screw hole is aligned with the anti-roll mounting hole 111. The fixing member 200 is suitable for being detachably connected to the mounting block of the anti-roll torsion bar located in the first groove 140 by a bolt passing through the anti-roll mounting hole 111 and threadedly connected to the fixing screw hole.

[0041] The anti-roll mounting seat of the embodiment of the present invention has a main profile 100 of an integrally formed structure. During the processing, no welding operation is required, which can effectively reduce the welding amount and welding deformation of the anti-roll mounting seat; after the mounting block of the anti-roll torsion bar is installed in the first groove 140 by bolts, the side wall of the first groove 140 can serve as a rotation limiter for the mounting block of the anti-roll torsion bar.

[0042] In the anti-roll mounting seat of the embodiment of the present invention, the first groove 140 can also provide an installation space for the mounting block of the anti-roll torsion bar. By changing the position of the mounting plate 110, the groove depth of the first groove 140 can be changed to adapt to different installation requirements.

[0043] In some embodiments of the present invention, a positioning groove is provided on one side of the mounting plate 110 close to the first groove 140, and the positioning groove is adapted to the mounting block of the anti-roll torsion bar. The anti-roll mounting hole 111 is located at the bottom of the positioning groove, and the mounting block of the anti-roll torsion bar can be installed at the position of the positioning groove to achieve a better positioning effect through the positioning groove.

[0044] In some embodiments of the present invention, the main body profile 100 further includes a first side panel 120 and a second side panel 130. The first side panel 120 and the second side panel 130 are arranged in parallel, and the mounting plate 110 is disposed between the first side panel 120 and the second side panel 130. The mounting plate 110 is integrally formed with the first side panel 120 and the second side panel 130. The space formed between the first side panel 120 and the second side panel 130 is divided by the mounting plate 110 into a first groove 140 and a second groove 150.

[0045] In some embodiments of the present invention, the main profile 100 further includes a reinforcing rib 190 integrally formed within the second groove 150. Both sides of the reinforcing rib 190 are respectively connected to the inner wall of the second groove 150. That is, the reinforcing rib 190 is located within the second groove 150, with one side of the reinforcing rib 190 connected to the first side panel 120 and the other side connected to the second side panel 130.

[0046] Optionally, the reinforcing rib 190 is parallel to the mounting plate 110 .

[0047] It can be understood that the reinforcing rib 190 can divide the space within the second groove 150 into two parts, the distance between the reinforcing rib 190 and the mounting plate 110 is greater than or equal to the thickness of the fixing member 200, and the second groove 150 is located between the reinforcing rib 190 and the mounting plate 110 to install the fixing member 200.

[0048] Combine Figure 2 and Figure 3 In some embodiments of the present invention, the mounting plate 110 is provided with a maintenance hole 112 , which connects the first groove 140 and the second groove 150 , and is used for the fixing member 200 to enter and exit between the first groove 140 and the second groove 150 .

[0049] Optionally, the maintenance hole 112 is a rectangular hole extending from the first side plate 120 to the second side plate 130 , and the width of the maintenance hole 112 is greater than or equal to the width of the fixing member 200 .

[0050] Optionally, the maintenance hole 112 is located in the middle of the mounting plate 110 in the width direction, dividing the mounting plate 110 into a first sub-plate body and a second sub-plate body, and the first sub-plate body and the second sub-plate body are respectively provided with an anti-roll mounting hole 111, and the first sub-plate body and the second sub-plate body are respectively provided with a fixing part 200, and both fixing parts 200 can enter and exit between the first groove 140 and the second groove 150 through the maintenance hole 112.

[0051] In the embodiment of the present invention, by providing the maintenance hole 112, the installation of the fixing member 200 can be facilitated. Moreover, when the fixing member 200 is damaged, or the bolts connecting the fixing member 200 and the mounting block of the anti-roll torsion bar are damaged, the anti-roll mounting seat can be replaced without destructive disassembly.

[0052] Combine Figure 3 and Figure 4 In some embodiments of the present invention, the fixing member 200 is detachably connected to the main body profile 100 .

[0053] Optionally, the fixing member 200 is detachably connected to the main body profile 100 via a fastener, which may be a clip or a bolt. In this embodiment of the present invention, the fastener is preferably a fastening bolt 220. The fixing member 200 is provided with a fastening screw hole 210, which is located on the same side of the fixing member 200 as the fixing screw hole. The mounting plate 110 is provided with a fastening through hole 113. The fastening bolt 220 is inserted into the fastening through hole 113 and threadedly engages with the fastening screw hole 210 to achieve a detachable connection between the fixing member and the main body profile 100.

[0054] Optionally, the fixing member 200 is detachably connected to the main body profile 100 via two fastening bolts 220, which are symmetrical about the anti-roll mounting hole 111. This can increase the firmness of the connection between the fixing member 200 and the main body profile 100 and prevent the fixing member 200 from rotating.

[0055] Combine Figures 1 to 3 In some embodiments of the present invention, the main body profile 100 is provided with a first wing panel 170 on one side along the first horizontal direction, and a second wing panel 180 on the other side along the first horizontal direction. The first wing panel 170 and the second wing panel 180 extend in opposite directions and are both located outside the opening of the first groove 140. One end of the first wing panel 170 is connected to the first side panel 120, and the other end is suitable for connecting to the bolster 300. One side of the first wing panel 170 is suitable for connecting to the side beam 400, and the other side is suitable for connecting to the floor panel 500. One end of the second wing panel 180 is connected to the second side panel 130, and the other end is suitable for connecting to the floor panel 500. One side of the second wing panel 180 is suitable for connecting to the side beam 400, and the other side is suitable for connecting to the floor panel 500.

[0056] In the embodiment of the present invention, the first wing panel 170 and the first side panel 120 , as well as the second wing panel 180 and the second side panel 130 , are integrally formed structures.

[0057] Optionally, the connection position between the first wing panel 170 and the first side panel 120 and the connection position between the second wing panel 180 and the second side panel 130 are both transitioned through rounded corners to avoid stress concentration and increase the overall structural strength of the anti-roll mounting seat.

[0058] Optionally, the first wing panel 170 is fixed to the bolster 300 , the side beam 400 , and the floor panel 500 by welding. Furthermore, the welds between the first wing panel 170 and the bolster 300 , the side beam 400 , and the floor panel 500 extend along the edge of the first wing panel 170 .

[0059] Optionally, the second wing panel 180 is fixed to the floor panel 500 and the side beam 400 by welding. Further, the weld between the second wing panel 180 and the floor panel 500 and the side beam 400 extends along the edge of the second wing panel 180.

[0060] It is worth noting that the shapes of the first wing panel 170 and the second wing panel 180 in the figure are only examples and can be flexibly designed according to space requirements. For example, the first wing panel 170 and the second wing panel 180 can adopt plate structures such as rectangular plates, trapezoidal plates or irregular shaped plates, which are not specifically limited here.

[0061] In some embodiments of the present invention, the main body profile 100 is adapted to form a first process hole 310 with the bolster 300 , the side beam 400 and the floor 500 , and is adapted to form a second process hole 410 with the side beam 400 and the floor 500 ;

[0062] The first wing plate 170 constitutes a bottom plate of the first process hole 310 , and the second wing plate 180 constitutes a bottom plate of the second process hole 410 .

[0063] It can be understood that, in this embodiment, the first side panel 120 and the first wing panel 170 of the main body profile 100 and the side wall of the pillow block 300, the side wall of the side beam 400 and the side wall of the floor 500 together form a first process hole 310, the upper side of the first process hole 310 is open, and the connection position between the main body profile 100, the pillow block 300, the side beam 400 and the floor 500 can be conveniently welded through the first process hole 310; in this embodiment, the second side panel 130 and the second wing panel 180 of the main body profile 100 and the side wall of the side beam 400 and the side wall of the floor 500 together form a second process hole 410, the upper side of the second process hole 410 is open, and the connection position between the main body profile 100, the side beam 400 and the floor 500 can be conveniently welded through the second process hole 410.

[0064] Combine Figure 1 and Figure 5 In some embodiments of the present invention, the anti-roll mounting base further includes at least one of a first patch plate 700 and a second patch plate 800. Preferably, the anti-roll mounting base includes the first patch plate 700 and the second patch plate 800. The first patch plate 700 is fixedly connected to the main body profile 100, the bolster 300, the side beam 400, and the floor panel 500, respectively, to block the first process hole 310. The second patch plate 800 is fixedly connected to the main body profile 100, the side beam 400, and the floor panel 500, respectively, to block the second process hole 410.

[0065] Optionally, the first patch plate 700 has the same opening size as the first process hole 310, and the edges of the first patch plate 700 are respectively welded to the first side panel 120, the pillow block 300, the side beam 400 and the floor 500; the second patch plate 800 has the same opening size as the second process hole 410, and the edges of the second patch plate 800 are respectively welded to the second side panel 130, the side beam 400 and the floor 500.

[0066] Optionally, two second patching plates 800 are provided, and the two second patching plates 800 are arranged in parallel, with one second patching plate 800 fixedly connected to the upper end of the side wall of the floor 500, and the other second patching plate 800 fixedly connected to the lower end of the side wall of the floor 500. In this embodiment, the two second patching plates 800 are connected to the floor 500, which can provide better support for the floor 500.

[0067] Optionally, a first welding head 131 is provided on the side of the main body profile 100 facing away from the pillow beam 300 (i.e., the side of the second side panel 130 facing away from the first side panel 120). The first welding head 131 is perpendicular to the second side panel 130 and parallel to the second wing panel 180. The first welding head 131 is used to be welded and fixed to the second patch plate 800.

[0068] Optionally, the first welding head 131 is an integrally formed structure of the main body profile 100 .

[0069] Combine Figure 4 、 Figure 6 and Figure 7 In some embodiments of the present invention, the anti-roll mount further includes a support rib 160. The support rib 160 is located on the side of the main profile 100 away from the side beam 400. The support rib 160 is fixedly connected to the main profile 100 and is used to be fixedly connected to the floor 500.

[0070] Specifically, the supporting rib 160 includes a vertical rib 161, a horizontal rib 162 and a second welding joint 163; wherein the vertical rib 161 is welded and fixed to the end of the first side panel 120, the second side panel 130 and the mounting plate 110 away from the side beam 400; the horizontal rib 162 is used to be welded and fixed to the end of the first side panel 120 and the second side panel 130 away from the first wing panel 170 and the second wing panel 180, and the second welding joint 163 is located on the side of the vertical rib 161 away from the first side panel 120 and the second side panel 130, and the second welding joint 163 is used to be welded and fixed to the floor 500.

[0071] Optionally, the supporting rib 160 is a profile structure.

[0072] Combine Figure 1 、 Figure 4 and Figure 5 In some embodiments of the present invention, the anti-roll mount further includes a third patch 900, which is located at the opening of the second groove 150. The third patch 900 is fixedly connected to the main profile 100 and is suitable for being fixedly connected to at least one of the bolster 300, the side beam 400 and the floor 500.

[0073] Optionally, the third patch plate 900 is welded and fixed to the horizontal rib plate 162 to increase the overall structural stability of the anti-roll mounting seat.

[0074] An embodiment of the present invention also provides a chassis structure, including a bolster 300, a side beam 400, a floor 500 and an anti-roll mounting seat. The bolster 300 is vertically fixed to the side beam 400, and the floor 500 is connected to the bolster 300 and the side beam 400 respectively. The anti-roll mounting seat is arranged at the angle formed by the bolster 300 and the side beam 400, and is fixedly connected to the bolster 300, the side beam 400 and the floor 500 respectively.

[0075] It is understood that during the processing of the chassis structure, the first side panel 120, second side panel 130, first wing panel 170, second wing panel 180, reinforcement rib 190, support rib 160, and third patch panel 900 of the anti-roll mounting bracket are first welded to the side rail 400, bolster 300, and floor panel 500 through the first and second process holes 310, 410, followed by welding of the first and second patch panels 700, 800. The operating space provided by the first and second process holes 310, 410 allows for welding of internal joints to ensure the securement strength of the anti-roll mounting bracket. Furthermore, the first and second process holes 310, 410 also allow for welding between, for example, the side rail 400 and bolster 300, the bolster 300 and floor panel 500, and the side rail 400 and floor panel 500.

[0076] An embodiment of the present invention further provides a rail vehicle, comprising an anti-roll torsion bar, the anti-roll torsion bar comprising a mounting block, and the rail vehicle further comprising the above-mentioned anti-roll mounting seat or the above-mentioned underframe structure.

[0077] The anti-roll mounting base provided by the present invention uses a profile as its main structure, effectively reducing welding effort and welding deformation. Compared to riveted mounting base structures, it offers the advantage of lower installation requirements. Furthermore, the first groove 140 of the main profile 100 can be used to position the mounting block of the anti-roll torsion bar. Bolting the mounting block to the fixing member 200 within the second groove 150 facilitates installation and fixation of the anti-roll torsion bar mounting block. This effectively reduces the difficulty of manufacturing and installing the anti-roll mounting base, thereby lowering production costs.

[0078] Furthermore, the underframe structure and the rail vehicle according to the embodiment of the present invention also have the above-mentioned advantages because they are provided with the above-mentioned anti-roll mounting seat.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-roll mounting seat, characterized in that: include: A main body profile (100), the main body profile (100) comprising a mounting plate (110), the mounting plate (110) dividing the main body profile (100) into a first groove (140) and a second groove (150), the mounting plate (110) being provided with an anti-roll mounting hole (111), the anti-roll mounting hole (111) communicating with the first groove (140) and the second groove (150); and a fixing member (200) located in the second groove (150), the fixing member (200) being provided with a fixing screw hole, the fixing screw hole being aligned with the anti-roll mounting hole (111), the fixing member (200) being adapted to be detachably connected to the mounting block of the anti-roll torsion bar located in the first groove (140) via a bolt passing through the anti-roll mounting hole (111) and threadedly connected to the fixing screw hole; A first wing plate (170) is provided on one side of the main body profile (100), and a second wing plate (180) is provided on the other side. The first wing plate (170) and the second wing plate (180) extend in opposite directions. The first wing plate (170) is suitable for connecting the bolster (300), the side beam (400) and the floor (500). The second wing plate (180) is suitable for connecting the side beam (400) and the floor (500). The main body profile (100) is suitable for forming a first process hole (310) with the bolster (300), the side beam (400) and the floor (500); the first wing plate (170) constitutes the bottom plate of the first process hole (310) and is suitable for forming a second process hole (410) with the side beam (400) and the floor (500); and the second wing plate (180) constitutes the bottom plate of the second process hole (410).

2. The anti-roll mount according to claim 1, wherein: The main body profile (100) further includes a reinforcing rib (190) integrally formed in the second groove (150), and two sides of the reinforcing rib (190) are connected to the inner wall of the second groove (150).

3. The anti-roll mount according to claim 1 or 2, characterized in that: The fixing member (200) is detachably connected to the main body profile (100).

4. The anti-roll mount according to claim 1, wherein: The mounting plate (110) is provided with a maintenance hole (112), the maintenance hole (112) communicating with the first groove (140) and the second groove (150), and the maintenance hole (112) is used for the fixing member (200) to enter and exit between the first groove (140) and the second groove (150).

5. The anti-roll mount according to claim 1, wherein: Also includes: a first patch plate (700) fixedly connected to the main body profile (100), the bolster (300), the side beam (400) and the floor (500), respectively, for blocking the first process hole (310); and / or, The second patch plate (800) is fixedly connected to the main body profile (100), the side beam (400) and the floor (500) respectively, and is used to block the second process hole (410).

6. The anti-roll mount according to claim 1, wherein: Also includes: a supporting rib (160) located on a side of the main profile (100) facing away from the side beam (400), the supporting rib (160) being fixedly connected to the main profile (100) and used for being fixedly connected to the floor (500); and / or, A third patch (900) is located at the opening of the second groove (150). The third patch (900) is fixedly connected to the main profile (100) and is suitable for being fixedly connected to at least one of the bolster (300), the side beam (400) and the floor (500).

7. A chassis structure comprising a bolster (300), a side beam (400) and a floor (500), wherein the bolster (300) is vertically fixed to the side beam (400), and the floor (500) is connected to the bolster (300) and the side beam (400), respectively, characterized in that: Also includes: The anti-roll mounting seat according to any one of claims 1 to 6, wherein the anti-roll mounting seat is arranged at an angle formed by the bolster (300) and the side beam (400), and is fixedly connected to the bolster (300), the side beam (400) and the floor (500), respectively.

8. A rail vehicle comprising an anti-roll torsion bar, the anti-roll torsion bar comprising a mounting block, characterized in that: Also includes: The anti-roll mount according to any one of claims 1 to 6, or the underframe structure according to claim 7.

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