A bogie frame, bogie and trailer vehicle

Abstract

This invention discloses a bogie frame, a bogie, and a trailer vehicle, relating to the field of bogie technology. The bogie frame includes two side beams, a first crossbeam, a second crossbeam, and an anti-roll torsion bar. Each of the first and second crossbeams is connected at one end to one of the side beams and at the other end to the other side beam. The first crossbeam has a hollow cavity extending through both ends of the first crossbeam along its axial direction. Torsion bar mounting seats are provided at both ends of the first crossbeam along its axial direction. The anti-roll torsion bar's two ends along its length are respectively connected to the two torsion bar mounting seats, and the anti-roll torsion bar is located within the hollow cavity. The bogie frame provided by this invention fully utilizes the internal space of the first crossbeam, eliminating the need for additional installation space and making the bogie frame's structural layout more compact and rational. It also ensures the normal function of the anti-roll torsion bar while protecting it from impacts from road stones.

Description

Technical Field

[0001] This invention relates to the field of bogie technology, and more specifically, to a bogie frame. Furthermore, this invention also relates to a bogie including the aforementioned bogie frame and a trailer vehicle including the aforementioned bogie frame. Background Technology

[0002] The bogie frame structure directly affects the running performance of railway vehicles. In traditional bogies, the wheels and axle boxes are arranged inside the frame, resulting in disadvantages such as large wheelset and frame mass, difficulty in passing through small radius curves, and poor adaptability to track torsion.

[0003] Current bogies require the installation of anti-roll torsion bars, which are typically installed on the outside of the bogie via mounting brackets. This requires a certain amount of installation space, further increasing the overall size of the bogie.

[0004] In summary, how to provide a compact steering architecture is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a bogie frame that, by installing the anti-roll torsion bar in the hollow cavity of the first crossbeam, avoids the anti-roll torsion bar occupying additional installation space, making the structural layout of the bogie frame more compact and reasonable.

[0006] Another object of the present invention is to provide a bogie including the above-described bogie frame and a trailer vehicle including the above-described bogie frame.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A bogie frame includes two side beams, a first crossbeam, a second crossbeam, and an anti-roll torsion bar;

[0009] Both the first crossbeam and the second crossbeam are connected at one end to one of the side beams and at the other end to the other side beam;

[0010] The first crossbeam is provided with a hollow cavity, which extends through both ends of the first crossbeam along its axial direction; both ends of the first crossbeam along its axial direction are provided with torsion bar mounting seats, and the two ends of the anti-roll torsion bar along its length are respectively connected to the two torsion bar mounting seats, and the anti-roll torsion bar is located in the hollow cavity.

[0011] Optionally, an integrated seat is provided at the axial end of the first crossbeam. The integrated seat includes a height valve mounting seat and a torsion bar mounting seat, and the height valve mounting seat and the torsion bar mounting seat are an integral structure.

[0012] The integrated base has five mounting positions along its circumference, one of which is used to install the height valve, and the other four of which are used to install the anti-torsion bar.

[0013] Optionally, the length of the second crossbeam is less than the length of the first crossbeam. The second crossbeam is a tubular structure closed at both ends in the axial direction. The second crossbeam is provided with a traction rod seat for installing a traction rod, and the traction rod seat is located at the middle section in the axial direction of the second crossbeam.

[0014] Optionally, an upper cover plate is provided at the middle position of the side beam along its length direction, and one side of the upper cover plate extends outward along the length direction of the crossbeam to form a first wing-shaped extension, and the first wing-shaped extension is provided with an anti-hunting shock absorber mounting seat.

[0015] The other side of the upper cover plate extends along the length of the crossbeam toward the inside of the side beam to form a longitudinal auxiliary beam.

[0016] Optionally, the first side of the longitudinal auxiliary beam is connected to the first crossbeam, the second side of the longitudinal auxiliary beam is connected to the second crossbeam, and the third side of the longitudinal auxiliary beam is connected to the side beam; the first side and the second side of the longitudinal auxiliary beam are arranged opposite to each other.

[0017] Optionally, the longitudinal auxiliary beam is a steel plate structure with a perforation. The steel plate structure has a base part extending along the plane of the upper cover plate and an installation platform fixed to the base part. The installation platform is arranged perpendicular to the base part.

[0018] Optionally, the edge of the installation platform is provided with a bend, which is used to connect with the hoisting equipment, and the end of the bend is provided with an anti-detachment protrusion.

[0019] Optionally, the first crossbeam is provided with a vertical stop mounting seat, which is located on the side of the first crossbeam facing the second crossbeam, and the vertical stop mounting seat and the two mounting platforms form a three-point support structure.

[0020] Optionally, the upper cover plate is provided with an air spring support seat, the air spring support seat is a ring structure, and the air spring support seat is detachably disposed on the upper cover plate;

[0021] The central axis of the air spring support is located at the intersection of the middle section of the side beam in the length direction and the middle section of the side beam in the width direction.

[0022] Optionally, along the length of the side beam, the side beam includes a middle section and end sections disposed at both ends of the middle section, the width of the end sections being greater than the width of the middle section; and the middle section is a bent structure with an arc-shaped concave portion.

[0023] Optionally, two spring sleeves are provided at both ends of the side beam, and the adjacent spring sleeves are spaced apart.

[0024] The spring sleeve has a groove for installing the spring, the spring sleeve is embedded in the side beam, and the bottom of the spring sleeve has an outward folded edge.

[0025] A bogie comprising the bogie frame described in any of the preceding claims.

[0026] A trailer vehicle comprising the bogie frame described in any of the preceding claims.

[0027] In the process of using the bogie frame provided by the present invention, the two ends of the anti-roll torsion bar are respectively connected to the torsion bar mounting seat at the end of the first crossbeam, and the anti-roll torsion bar is completely located in the hollow cavity of the first crossbeam.

[0028] Compared to the existing installation method of anti-roll torsion bars, the bogie frame provided by this invention makes full use of the space inside the first crossbeam, placing the anti-roll torsion bar within the hollow cavity of the first crossbeam. This eliminates the need for additional installation space, resulting in a more compact and rational structural layout of the bogie frame. Furthermore, designing the first crossbeam as a hollow structure helps reduce the weight of the bogie frame, achieving lightweight construction.

[0029] In addition, the present invention also provides a bogie including the above-described bogie frame and a trailer vehicle including the above-described bogie frame. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 A schematic diagram of a specific embodiment of the steering frame provided by the present invention;

[0032] Figure 2 This is a structural schematic diagram of the steering frame provided by the present invention from another angle;

[0033] Figure 3 A schematic diagram of the brake caliper mounting bracket;

[0034] Figure 4 This is a schematic diagram of the integrated base.

[0035] Figures 1-4 middle:

[0036] 1-Side beam, 2-First crossbeam, 3-Second crossbeam, 4-Brake caliper mounting seat, 410-First positioning bolt hole, 420-Second positioning bolt hole, 5-Transverse shock absorber mounting seat, 6-Spring sleeve, 7-Wheelset lifting seat, 8-Vertical shock absorber, 9-Tie rod seat, 10-Integrated seat, 110-Height valve mounting seat, 120-Torsion bar mounting seat, 11-Top cover plate, 12-Anti-hunting shock absorber mounting seat, 13-Longitudinal auxiliary beam, 1310-Mounting platform, 1320-Bending part, 14-Air spring support seat, 15-Positioning cylinder, 16-Traction tie rod seat, 17-Vertical stop mounting seat, 18-Accessory mounting seat. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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] The core of this invention is to provide a bogie frame that, by installing the anti-roll torsion bar in the hollow cavity of the first crossbeam, avoids the anti-roll torsion bar occupying additional installation space, making the structural layout of the bogie frame more compact and reasonable.

[0039] Another core aspect of this invention is to provide a bogie including the aforementioned bogie frame and a trailer vehicle including the aforementioned bogie frame.

[0040] It should be noted that the bogie is a device that can rotate relative to the car body. It bears the entire weight of the car body, has good shock absorption characteristics to mitigate the interaction between the vehicle and the track, reduce impact and vibration, ensure the train can pass smoothly through curves, improve the stability and safety of the vehicle, and transmit traction and braking forces, enabling the vehicle to start, accelerate and brake. The bogie frame is an important component of the bogie, which can bear the weight of all parts of the car body above the bogie, transmit the load to the rail surface through the axle box wheelsets, and provide positioning and installation interfaces for each subsystem of the bogie, as well as transmit and attenuate the vibration between the wheelsets and the car body.

[0041] This specific embodiment discloses a bogie frame, including two side beams 1, a first crossbeam 2, a second crossbeam 3, and an anti-roll torsion bar; the first crossbeam 2 and the second crossbeam 3 are each connected to one of the side beams 1 at one end and to the other side beam 1 at the other end; the first crossbeam 2 is provided with a hollow cavity, which extends through both ends of the first crossbeam 2 along its axial direction; both ends of the first crossbeam 2 are provided with torsion bar mounting seats 120, and the two ends of the anti-roll torsion bar in the longitudinal direction are respectively connected to the two torsion bar mounting seats 120, and the anti-roll torsion bar is located in the hollow cavity.

[0042] It should be noted that when a vehicle is traveling on a curve or subjected to lateral forces, the vehicle body is prone to roll. Anti-roll torsion bars counteract this roll by twisting the torsion bar, thus improving the vehicle's anti-roll performance. Anti-roll torsion bars also reduce lateral acceleration when traveling on curves, reducing motion sickness for passengers. Furthermore, excessive roll can damage the vehicle's structure and equipment. Anti-roll torsion bars limit the roll angle, protecting the vehicle's structure and equipment; they also reduce lateral wheel-rail forces when traveling on curves, decreasing wear on the rails and wheels.

[0043] In existing solutions, anti-roll torsion bars can be installed on the bogie frame, with the torsion bar connected to the support via a torsion arm, and the other end of the torsion arm connected to the car body via a connecting rod; alternatively, the anti-roll torsion bar can be installed on the car body, with the support mounted on the car body, the torsion bar connected to the support via a torsion arm, and the other end of the torsion arm connected to the bogie frame via a connecting rod; there is also a technical solution where the anti-roll torsion bar is installed on the axle, with the support mounted on the axle, the torsion bar connected to the support via a torsion arm, and the other end of the torsion arm connected to the car body or bogie frame via a connecting rod. Regardless of the installation method, a certain amount of space needs to be reserved for the installation of the anti-roll torsion bar, and the installation of the anti-roll torsion bar requires additional space.

[0044] In the process of using the bogie frame provided in this specific embodiment, the two ends of the anti-roll torsion bar are respectively connected to the torsion bar mounting seat 120 at the end of the first crossbeam 2, and the anti-roll torsion bar is completely located in the hollow cavity of the first crossbeam 2.

[0045] Compared to the existing installation methods for anti-roll torsion bars, the bogie frame provided in this specific embodiment makes full use of the internal space of the first crossbeam 2, placing the anti-roll torsion bar within the hollow cavity of the first crossbeam 2. This eliminates the need for additional installation space, resulting in a more compact and rational structural layout of the bogie frame. Furthermore, designing the first crossbeam 2 as a hollow structure helps reduce the weight of the bogie frame, achieving lightweight construction. Additionally, it ensures the normal function of the anti-roll torsion bar while protecting it from impacts from road stones.

[0046] Based on the above embodiments, an integrated seat 10 can be provided at the end of the first crossbeam 2 extending axially from the side beam 1. The integrated seat 10 includes a height valve mounting seat 110 and a torsion bar mounting seat 120, and the height valve mounting seat 110 and the torsion bar mounting seat 120 are an integral structure; for example Figure 4 As shown, the integrated base 10 has five mounting positions along the circumference, one of which is used to install the height valve, and the other four are used to install the anti-roll torsion bar.

[0047] Specifically, the integrated base 10 is a one-piece forged structure, with four mounting holes and grooves for installing anti-roll torsion bars, and one mounting hole for installing a height valve. A boss is provided on the other side, which is embedded inside the tube beam to ensure structural reliability.

[0048] On the other hand, the integrated seat 10 can include a seat body, a height valve mounting position, an anti-roll bar mounting position, and a connecting structure. The seat body is the main structure of the integrated seat 10, generally made of metal, and has sufficient strength and rigidity to withstand the weight of the height valve and the anti-roll torsion bar device, as well as various forces generated during operation. The seat body is usually fixed to the first crossbeam 2 by welding, bolting, or other methods. The height valve mounting position on the integrated seat 10 has a dedicated location and fixing structure for installing the height valve; these fixing structures may include bolt holes, slots, or other suitable connection methods to ensure that the height valve can be firmly installed on the seat body and accurately sense the relative height change between the car body and the bogie, thereby controlling the inflation or deflation of the air spring. The torsion bar mounting position on the integrated seat 10 also has the installation position and fixing method for the anti-roll torsion bar and its related components (such as torsion bars, torsion arms, support seats, etc.). For example, the support seat of the torsion bar is fixed by a slot or bracket of a specific shape, so that the anti-roll torsion bar can effectively resist the roll of the car body. The torsion arm is connected to the support and other connecting components via hinges or other means to transmit the torsional force of the torsion bar. To connect the integrated base 10 to the first crossbeam 2, connecting structures such as connecting rods and pins are also provided. These connecting structures must ensure a firm and reliable connection between the integrated base 10 and the bogie, while also allowing for relative movement within a certain range to accommodate various dynamic changes during vehicle operation.

[0049] Of course, the integrated base 10 in this specific embodiment can also be other structural forms, which will be determined according to the actual situation and will not be elaborated here.

[0050] In this specific embodiment, the height valve mounting seat 110 and the torsion bar mounting seat 120 are integrated into one structure by means of the integrated seat 10, and the integrated seat 10 is installed on the outer periphery of both ends of the first crossbeam 2. This will not affect the installation of the anti-roll torsion bar, and it can also be used to install the height valve, making the structural layout of the bogie frame more reasonable and the structure more compact, which is conducive to the miniaturization of the bogie frame.

[0051] In one specific embodiment, the length of the second crossbeam 3 is less than the length of the first crossbeam 2. The second crossbeam 3 is a tubular structure with both ends closed in the axial direction. The second crossbeam 3 is provided with a traction rod seat 16 for installing the traction rod, and the traction rod seat 16 is located at the middle section in the axial direction of the second crossbeam 3, which can realize the traction mode of a single traction rod.

[0052] Based on the above embodiment, an upper cover plate 11 can be provided at the middle position of the side beam 1 along its length direction. One side of the upper cover plate 11 extends outward along the length direction of the crossbeam to form a first wing-shaped extension, and the first wing-shaped extension is provided with an anti-hunting shock absorber mounting seat 12. The other side of the upper cover plate 11 extends inward along the length direction of the crossbeam to form a longitudinal auxiliary beam 13.

[0053] In this specific embodiment, the arrangement of the upper cover plate 11 enables the diversification of the functions of the upper cover plate 11, making the upper cover plate 11 compact in structure and concentrated in function.

[0054] like Figure 1 As shown, the anti-hunting damper mounting base 12 is a thin-walled, large-section structure. The upper part is a wing-shaped structure on one side, the side has two symmetrically arranged arc-shaped steel plates, the bottom has an arc-shaped steel plate, and the outer side is a rectangular steel plate with four positioning seats. The positioning seats have threaded holes and positioning grooves for installing the anti-hunting damper.

[0055] Specifically, the anti-hunting shock absorber mounting base 12 can include a horizontal body connecting plate, a vertical body connecting plate, and an anti-hunting shock absorber mounting block. The horizontal body connecting plate is riveted to the bottom surface of the bogie side beam 1, and its back is designed as a large horizontal body connecting surface for close contact with the body underframe side beam. The horizontal body connecting plate typically has several sets of rivet holes for a secure connection with the body underframe side beam. The vertical body connecting plate is riveted to the inner side of the underframe side beam, and its back is designed as a large vertical body connecting surface, also connected to the underframe side beam by rivets. The vertical body connecting plate not only serves a connecting function but also increases the overall stability of the mounting base. Multiple reinforcing ribs connected to the horizontal body connecting plate are arranged at both ends of the vertical body connecting plate on the side facing away from the underframe side beam, and between the multiple rows of rivet holes, further improving the strength of the entire structure. The anti-hunting shock absorber mounting block is located on the bottom surface of the horizontal body connecting plate or on the side beam 1 of the bogie frame. The anti-hunting shock absorber mounting block includes a large anti-hunting shock absorber mounting block in the center and four small anti-hunting shock absorber mounting blocks on either side. The large anti-hunting shock absorber mounting block has a cylindrical pin hole in the center for mounting the vehicle connection end of the anti-hunting shock absorber. Several bolt holes are arranged around the cylindrical pin hole for mounting and fixing the anti-hunting shock absorber. Each small anti-hunting shock absorber mounting block also has a bolt hole as needed, serving as an auxiliary fixing and positioning tool. Between the mounting blocks, material is hollowed out in areas of low stress, forming two "+" shaped grooves. This reduces the overall weight of the structure without affecting the overall strength and function of the mounting base.

[0056] In addition, to further reduce weight, square weight-reducing holes can be made on the back of the large mounting block of the anti-snake damper. At the same time, optimized rounded transitions are used at all corners of the mounting base, and large rounded transitions are used in high-stress areas to avoid stress concentration. This allows the entire structure to enhance its load-bearing capacity while reducing its overall mass, ultimately making full and effective use of materials to achieve optimal design.

[0057] In actual installation, the first side of the longitudinal auxiliary beam 13 can be connected to the first crossbeam 2, the second side of the longitudinal auxiliary beam 13 can be connected to the second crossbeam 3, and the third side of the longitudinal auxiliary beam 13 can be connected to the side beam 1. The first and second sides of the longitudinal auxiliary beam 13 are set opposite to each other. The longitudinal auxiliary beam 13 connects the first crossbeam 2 and the second crossbeam 3 together. The force at the traction rod is transmitted from the first crossbeam 2 to the second crossbeam 3 through the longitudinal auxiliary beam 13, so that the first crossbeam 2 and the second crossbeam 3 evenly share the traction and braking forces. At the same time, the outer side of the longitudinal auxiliary beam 13 is combined with the side beam 1, strengthening the connection between the side beam 1 and the first crossbeam 2 and the second crossbeam 3, and distributing the stress at the connection between the first crossbeam 2, the second crossbeam 3 and the side beam 1, making the bogie frame more reliable.

[0058] The longitudinal auxiliary beam 13 also supports the inner part of the wing-shaped structure in the middle of the side beam 1, while the outer part of the wing-shaped structure is supported by the anti-hunting damper mounting seat. The longitudinal auxiliary beam 13 and the anti-hunting damper mounting seat 12 jointly support the wing-shaped structure, the middle of which is a circular air spring support seat 14. The air spring support seat 14 is an annular structure and is detachably mounted on the upper cover plate 11. The central axis of the air spring support seat 14 is located at the intersection of the middle section in the length direction and the middle section in the width direction of the side beam 1. This air spring support seat 14 can provide sufficient vertical support to meet the installation requirements of the air spring and can withstand the vertical force applied to the frame by the vehicle body through the air spring.

[0059] In one specific embodiment, the longitudinal auxiliary beam 13 is a steel plate structure with perforations. The steel plate structure has a base portion extending along the plane of the upper cover plate 11 and an installation platform 1310 fixed to the base portion. The installation platform 1310 is arranged perpendicular to the base portion. A bending portion 1320 is provided at the edge of the installation platform 1310 for connecting with hoisting equipment. An anti-detachment protrusion is provided at the end of the bending portion 1320.

[0060] The first crossbeam 2 is provided with a vertical stop mounting seat 17, which is located on the side of the first crossbeam 2 facing the second crossbeam 3, and the vertical stop mounting seat 17 and the two mounting platforms 1310 form a three-point support structure.

[0061] like Figure 1 , Figure 2 As shown, the longitudinal auxiliary beam 13 is a welded structure of hollow steel plates. The longitudinal auxiliary beam 13 is provided with a bending part 1320 with overall lifting function. The end of the bending part 1320 is provided with an installation platform 1310. The two installation platforms 1310 together with the vertical stop installation seat 17 form a stable three-point support structure. This three-point support structure can realize the smooth lifting of the bogie.

[0062] This specific embodiment discloses a bogie frame, including two side beams 1, a first crossbeam 2, and a second crossbeam 3; the first crossbeam 2 and the second crossbeam 3 are each connected to one of the side beams 1 at one end and to the other side beam 1 at the other end; along the length direction of the side beam 1, the side beam 1 includes a middle section and end sections disposed at both ends of the middle section, the width of the end sections being greater than the width of the middle section; and the middle section is a bent structure with an arc-shaped concave portion; the first crossbeam 2 and the second crossbeam 3 are both hollow tubular structures.

[0063] It should be noted that in this specific embodiment, the two side beams 1 can also be set as hollow structures. In actual use, it is necessary to ensure that the hollow side beams 1 can meet the structural strength requirements. When it is necessary to install structural components on the side beams 1, corresponding mounting protrusions can be set on the side beams 1.

[0064] In using the bogie frame provided in this specific embodiment, since the side beam 1 is designed with a lower middle section and higher ends, the arc-shaped recess formed in the middle section can be used to install other structural components, making the structural layout of the bogie frame more compact. Furthermore, the width of the end sections of the side beam 1 is greater than the width of the middle section, facilitating the installation of the spring sleeves 6 in the end sections and improving the reliability of the spring sleeve 6 installation. In addition, both the first crossbeam 2 and the second crossbeam 3 are designed as hollow tubular structures, which helps to reduce the weight of the bogie frame and achieve lightweighting.

[0065] Based on the above embodiments, a brake caliper mounting seat 4 can be provided on the outer side of the side beam 1. The brake caliper mounting seat 4 is provided with a first positioning bolt hole 410 and a second positioning bolt hole 420. The axial direction of the first positioning bolt hole 410 is perpendicular to the axial direction of the second positioning bolt hole 420, and the axis of the first positioning bolt hole 410 is set along the height direction of the side beam 1.

[0066] like Figure 3 As shown, when the brake caliper is installed on the brake caliper mounting base 4, it is fixed by bolts installed in the first positioning bolt hole 410 and bolts installed in the second positioning bolt hole 420. Since the axis of the first positioning bolt hole 410 is perpendicular to the axis of the second positioning bolt hole 420, and the axis of the first positioning bolt hole 410 is set along the height direction of the side beam 1, in actual use, it is ensured that the side beam 1 is only subjected to bending moment and not torque in actual working conditions. When the brake caliper is subjected to longitudinal shear force, the bolt installed in the first positioning bolt hole 410 bears the longitudinal shear force, and the bolt installed in the second positioning bolt hole 420 bears the transverse shear force. This can effectively prevent the brake caliper mounting base 4 from bearing shear force alone, improve the reliability of the brake caliper mounting base 4, and extend the service life of the brake caliper mounting base 4.

[0067] Specifically, the brake caliper mounting bracket 4 can be configured as follows: Figure 3 The square structure shown can also be used to set other structural forms that meet the requirements of the brake caliper mounting base 4. The specific form will be determined according to the actual situation and will not be elaborated here.

[0068] It should be noted that the height direction of the side beam 1 mentioned in this application is perpendicular to the length direction of the side beam 1 and also perpendicular to the length direction of the first crossbeam 2 or the second crossbeam 3, and the width direction of the side beam 1 is parallel to the length direction of the first crossbeam 2 or the second crossbeam 3.

[0069] In this specific embodiment, the end sections at both ends of the middle section of the side beam 1 can be inclined gradually from one end connected to the middle section to the other end in a direction away from the bottom of the middle section, or the end sections can be set horizontally from one end connected to the middle section to the other end. The specific arrangement is determined according to the actual situation and will not be elaborated here.

[0070] In addition, considering that other components need to be installed at the bottom of the middle section, the bottom surface of the middle section can be set as a plane, or the middle section can be set as a trapezoidal structure. The specific choice depends on the actual situation and will not be elaborated here.

[0071] In one specific embodiment, an arc-shaped extension can be provided at the bottom of the middle section of the side beam 1. The bottom of the extension is connected to a transverse shock absorber mounting seat 5, which is used to install a transverse shock absorber.

[0072] like Figure 2 As shown, each crossbeam is provided with two extensions, and each extension is provided with a transverse shock absorber mounting seat 5 at its bottom. The transverse shock absorber mounting seat 5 is located at the middle position in the length direction of the side beam 1. In actual use, the transverse shock absorber mounting seat 5 is centered, which can make the side beam 1 bear the force evenly and help improve the shock absorption effect.

[0073] In one specific embodiment, two spring sleeves 6 are provided at both ends of the side beam 1, and adjacent spring sleeves 6 are spaced apart; the spring sleeve 6 is provided with a groove for installing springs, the spring sleeve 6 is embedded in the side beam 1, and the bottom of the spring sleeve 6 is provided with an outward folded edge.

[0074] The outward folding edge mentioned here mainly refers to the height direction of the spring sleeve 6 through the side beam 1. The bottom of the spring sleeve 6 extends out of the side beam 1, and the part of the spring sleeve 6 that extends out of the side beam 1 forms an outward folding edge, which can effectively improve the installation reliability of the spring sleeve 6.

[0075] It should be noted that, compared to the prior art where only one spring sleeve 6 is provided at the end of the side beam 1, this specific embodiment provides two spring sleeves 6 at both ends of the side beam 1. The two spring sleeves 6 allow each axle box to be equipped with two primary steel springs. This arrangement of two spring sleeves 6 at each end ensures that each axle box is equipped with two primary steel springs. Compared to the arrangement where each axle box is equipped with only one primary steel spring, this arrangement effectively reduces the outer diameter of the primary steel springs, thereby reducing the width of the side beam 1. Reducing the width of the side beam 1 further reduces the overall space occupied by the bogie frame, facilitating the miniaturization of the bogie frame; simultaneously, it increases the axial contact area between the primary steel springs and the side beam 1, reducing contact stress and improving the fatigue life of the primary steel springs and the axle box.

[0076] The spring sleeve 6 is embedded inside the side beam 1. The bottom of the spring sleeve 6 has a hollow groove structure for installing the primary steel spring and preventing the spring from falling off. The bottom of the spring sleeve 6 at the bend also has an arc-shaped structure, which matches the arc shape of the side beam 1 at the bend. The arc-shaped structure does not need to change the overall outline of the side beam 1, meets the strength requirements, and can also realize the arrangement of installing two primary steel springs in each axle box.

[0077] The lower recess of the spring sleeve 6 is provided with an outward folded edge, which can strengthen the connection strength of the lower part of the spring sleeve 6, meet the structural strength requirements, and reduce the stress level in the lower part.

[0078] Based on the above embodiments, a wheelset lifting seat 7 can be provided on the inner side of the side beam 1. The wheelset lifting seat 7 is used to fix the wheelset to the side beam 1. When the bogie is lifted as a whole, the wheelset lifting seat 7 fixes the wheelset to the bogie with ropes to achieve synchronous lifting of the wheelset and the frame.

[0079] Specifically, the wheelset lifting bracket 7 can include an axle box body and primary rubber springs. The axle box body includes a bearing housing and a bearing housing base integrally connected to its lower end. Two primary rubber springs are located between the bogie and the bearing housing base, one on each side of the bearing housing. Each primary rubber spring includes a metal housing. A protrusion is provided on the side of each metal housing near the bearing housing, and this protrusion is integrally cast and connected to the metal housing, for example, directly formed onto the metal housing through a casting process. Its width is slightly smaller than the width of the vertical grooves on both sides of the bearing housing. This allows the protrusion to slide smoothly vertically within the grooves, while maintaining a certain gap with the inner wall of the groove in the horizontal direction to avoid unnecessary friction and jamming. However, in extreme cases, when a large horizontal load occurs between the bogie and the axle box body, the protrusion and the inner wall of the groove can form a reliable horizontal limiting connection, preventing large horizontal displacement of the primary rubber spring and improving safety and reliability. A vertical groove is provided on each side of the bearing housing to accommodate the protrusion, providing space and guidance for the protrusion's vertical sliding. The lifting stop is located at the upper end of the vertical slide groove and is detachably fixed to the slide groove with bolts. When the vehicle is assembled and in normal driving condition, the protrusions and lifting stops are spaced apart and do not exert force, with the bogie and wheelsets experiencing vibration damping via primary rubber springs. However, during bogie lifting and transport, the primary rubber springs stretch until the protrusions engage with the lifting stop. The force between the protrusions and the lifting stop lifts the wheelsets, preventing excessive stretching of the primary rubber springs.

[0080] Of course, the wheelset lifting seat 7 can also be other structures that meet the requirements, depending on the actual situation, which will not be elaborated here.

[0081] like Figure 2As shown, vertical damper 8 mounting seats are provided at both ends of the side beam 1 along its length. The vertical damper 8 mounting seats are used to install the vertical dampers 8. The vertical damper 8 mounting seats are welded together with the lower cover plate. The upper cover plate 11 has openings for the installation and removal of the dampers. A tie rod seat 9 is provided at the bottom of the side beam 1. A positioning cylinder 15 is provided between adjacent spring sleeves 6. The positioning cylinder 15 cooperates with the tie rod seat 9 to fix the axle box body.

[0082] It should be noted that the main body of the vertical damper 8 mounting base in this specific embodiment is generally made of high-strength metal materials, such as cast steel or forged steel, to ensure that it can withstand various forces and moments generated by the vertical damper during vehicle operation. In terms of shape, the vertical damper 8 mounting base is typically a block or plate-like structure. Its size and shape are customized according to the bogie design requirements and the specifications of the vertical damper. The vertical damper 8 mounting base includes a connection part to the bogie frame and a connection part to the vertical damper; the mounting base is fixed to the bogie frame by bolts, welding, or other reliable connection methods. The connection parts are usually reinforced to ensure a firm and reliable connection between the mounting base and the bogie frame. Reinforcing ribs, bosses, and other structures can be provided to increase the strength and rigidity of the connection parts, preventing loosening or deformation during vehicle operation. The mounting base has a dedicated area for mounting the vertical damper, typically including mounting holes, slots, or other connection structures. The size and shape of the mounting holes match the connection end of the vertical damper to ensure accurate installation and fixation of the vertical damper. Buffer materials such as shims and rubber bushings can be installed to reduce vibration transmission between the vertical shock absorber and the mounting base, and to protect the mounting base and shock absorber from damage.

[0083] In addition, to facilitate installation and maintenance, the design of the mounting base may take into account the operating space and ease of tool use. For example, sufficient space may be provided to allow for the use of tools such as wrenches and sockets to tighten and loosen bolts. The surface of the mounting base may be treated with rust and corrosion prevention to improve its service life and reliability. Common treatment methods include painting and galvanizing.

[0084] In addition, such as Figure 2 As shown, an accessory mounting base 18 for sand spreading and obstacle removal, and wheel rim lubrication can also be provided at the end of the side beam 1. This base has four mounting holes and a mounting positioning groove. When installing accessories such as sand spreading and obstacle removal and wheel rim lubrication, they can be embedded into the positioning groove, increasing structural reliability.

[0085] It should be noted that the sand-spreading obstacle removal accessory mentioned in this specific embodiment can be an integrated sand-spreading obstacle removal device mounting structure, mainly used to spread sand on the rails to increase the friction between the rail wheels and the rails, shorten the track distance, and increase the friction for climbing slopes. Specifically, an anti-loosening structure is set on the integrated sand-spreading obstacle removal device mounting structure to force the sand-spreading obstacle removal device mounting arm not to detach from the side beam 1 of the bogie frame when subjected to external force, thereby improving the fixing strength of the sand-spreading obstacle removal device mounting arm.

[0086] Furthermore, the aforementioned anti-loosening structure can include an anti-loosening plate with screw holes; the anti-loosening plate is fixed to the end of the mounting arm of the sand-spreading and obstacle-removing integrated device by bolts that can pass through the screw holes. Of course, the anti-loosening structure can also be other structural forms that meet the requirements, depending on the actual situation, and will not be elaborated here.

[0087] The aforementioned improved flange lubrication accessories can be either dry or wet lubrication systems. Dry lubrication uses solid flange lubricating rods as the lubricating medium, and is generally achieved by a purely mechanical flange lubricator applying the lubricating rods to the flange surface. Wet lubrication uses lubricating oil or grease as the lubricating medium, and is sprayed onto the flange surface by a complex device integrating mechanical, electrical, pneumatic, and intelligent control systems. Dry lubrication is increasingly used due to its advantages such as simple and reliable structure, low failure rate and maintenance cost, and stable lubricating medium performance.

[0088] Specifically, the rim lubrication accessory can be configured as a rim lubricator, which includes a guide tube, a lubricating rod installed inside the guide tube, a constant force spring, and an L-shaped push plate. The guide tube has openings at both ends, the lubricating rod extends out from the front opening, the bottom edge of the push plate extends into the guide tube and is fixed to the constant force spring, the side of the push plate closes the opening at the rear end of the guide tube and extends upward to the outside of the guide tube, the rear end of the lubricating rod contacts the constant force spring, and a pin is provided on the inner and outer sides of the push plate, the pins being fixedly connected to the guide tube.

[0089] In addition to the aforementioned bogie frame, the present invention also provides a bogie including the aforementioned bogie frame. For the structure of other parts of the bogie, please refer to the prior art, which will not be repeated here.

[0090] In one specific embodiment, the bogie includes the aforementioned bogie frame, brake calipers, lateral shock absorbers, a height valve, an anti-hunting shock absorber, a traction rod, and a vertical stop. The brake calipers are mounted on the brake caliper mounting seat 4 of the bogie frame; the lateral shock absorbers are mounted on the lateral shock absorber mounting seat 5 of the bogie frame; the height valve is mounted on the integrated seat 10 of the bogie frame; the anti-hunting shock absorber is mounted on the anti-hunting shock absorber mounting seat 12 of the bogie frame; the traction rod is mounted on the traction rod seat 16 of the bogie frame; and the vertical stop is mounted on the vertical stop mounting seat 17 of the bogie frame. Of course, depending on the actual situation, other different connection interfaces can be provided on the bogie frame, as determined according to the specific circumstances, and will not be elaborated here.

[0091] In addition to the aforementioned steering frame, the present invention also provides a trailer vehicle including the steering frame disclosed in the above embodiments. The structure of other parts of the trailer vehicle is described in the prior art and will not be repeated here.

[0092] The terms "first" and "second" in this application, referring to the first crossbeam 2 and the second crossbeam 3, and the first positioning bolt hole 410 and the second positioning bolt hole 420, are merely for distinguishing different positions and do not indicate any order. The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this invention is within the protection scope of this invention and will not be elaborated upon here.

[0093] The bogie frame, bogie, and trailer vehicle provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A steering frame, characterized in that, It includes two side beams (1), a first crossbeam (2), a second crossbeam (3), and an anti-roll torsion bar; The first crossbeam (2) and the second crossbeam (3) are each connected at one end to one of the side beams (1) and at the other end to the other side beam (1); The first crossbeam (2) is provided with a hollow cavity, which extends through both ends of the first crossbeam (2) along the axial direction; both ends of the first crossbeam (2) are provided with torsion bar mounting seats (120), and the two ends of the anti-roll torsion bar in the length direction are respectively connected to the two torsion bar mounting seats (120), and the anti-roll torsion bar is located in the hollow cavity; The first crossbeam (2) and the second crossbeam (3) both pass through and are welded to the side beam (1); An integrated seat (10) is provided at the axial end of the first crossbeam (2). The integrated seat (10) includes a height valve mounting seat (110) and a torsion bar mounting seat (120). The height valve mounting seat (110) and the torsion bar mounting seat (120) are an integral structure. The integrated base (10) is provided with five mounting positions along the circumference, one of which is used to install the height valve, and the other four mounting positions are used to install the anti-roll torsion bar. The length of the second crossbeam (3) is less than the length of the first crossbeam (2). The second crossbeam (3) is a tubular structure with both ends closed in the axial direction. The second crossbeam (3) is provided with a traction rod seat (16) for installing the traction rod, and the traction rod seat (16) is located at the middle section in the axial direction of the second crossbeam (3). A top cover plate (11) is provided at the middle position of the side beam (1) along its length direction. One side of the top cover plate (11) extends outward from the side beam (1) along the length direction of the first cross beam (2) to form a first wing-shaped extension. The first wing-shaped extension is provided with an anti-hunting shock absorber mounting seat (12). The other side of the upper cover plate (11) extends along the length direction of the first crossbeam (2) toward the inner side of the side beam (1) to form a longitudinal auxiliary beam (13). The upper cover plate (11) is located between the first crossbeam (2) and the second crossbeam (3).

2. The steering frame according to claim 1, characterized in that, The first side of the longitudinal auxiliary beam (13) is connected to the first crossbeam (2), the second side of the longitudinal auxiliary beam (13) is connected to the second crossbeam (3), and the third side of the longitudinal auxiliary beam (13) is connected to the side beam (1); the first side and the second side of the longitudinal auxiliary beam (13) are arranged opposite to each other.

3. The steering frame according to claim 1, characterized in that, The longitudinal auxiliary beam (13) is a steel plate structure with a hollowed-out section. The steel plate structure has a base part extending along the plane of the upper cover plate (11) and an installation platform (1310) fixed to the base part. The installation platform (1310) is set perpendicular to the base part.

4. The bogie frame according to claim 3, characterized in that, The installation platform (1310) is provided with a bending part (1320) at its edge. The bending part (1320) is used to connect with the hoisting equipment. The end of the bending part (1320) is provided with an anti-detachment protrusion.

5. The bogie frame according to claim 3, characterized in that, The first crossbeam (2) is provided with a vertical stop mounting seat (17), which is located on the side of the first crossbeam (2) facing the second crossbeam (3), and the vertical stop mounting seat (17) and the two mounting platforms (1310) form a three-point support structure.

6. The steering frame according to claim 1, characterized in that, The upper cover plate (11) is provided with an air spring support seat (14), which is a ring structure and is detachably provided on the upper cover plate (11). The central axis of the air spring support (14) is located at the intersection of the middle section of the side beam (1) in the length direction and the middle section of the side beam (1) in the width direction.

7. The bogie frame according to claim 1, characterized in that, Along the length direction of the side beam (1), the side beam (1) includes a middle section and end sections disposed at both ends of the middle section, the width of the end sections being greater than the width of the middle section; and the middle section being a bent structure with an arc-shaped concave portion.

8. The bogie frame according to claim 1, characterized in that, Two spring sleeves (6) are provided at both ends of the side beam (1), and the adjacent spring sleeves (6) are spaced apart. The spring sleeve (6) has a groove for installing the spring. The spring sleeve (6) is embedded in the side beam (1), and the bottom of the spring sleeve (6) has an outward folded edge.

9. A bogie, characterized in that, Includes the steering frame as described in any one of claims 1-8.

10. A trailer vehicle, characterized in that, Includes the steering frame as described in any one of claims 1-8.

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