Head shaking stop device with two-system lifting function

Abstract

Provided is a shaking head stop device with a two-stage lifting function, belonging to the field of rail vehicle technology. When the rail vehicle has a curve radius that is too small, the baffle and the hook come into contact and limit the torsion of the hook, thereby limiting the torsion angle of the vehicle body and the bogie, so that the stacked rubber pile is within a safe torsion range; when the rail vehicle is lifted as a whole, the hook drives the two-stage lifting ring, and the two-stage overall lifting of the bogie is achieved through the bolts fixed thereon. The present invention realizes the role of a device with multiple functions by integrating the two-stage lifting structure connected to the vehicle body longitudinal beam and the two-stage shaking head stop structure connected to the bogie. It not only facilitates the lifting of the vehicle as a whole, but also effectively limits the torsion of the vehicle body relative to the bogie, thereby preventing interference between components, improving the driving safety of railway engineering vehicles, facilitating disassembly and assembly, saving manpower and material resources, reducing costs, and improving efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, and in particular relates to a shaking head stop device with a two-system lifting function. Background Art

[0002] With the rapid development of my country's railway industry, the research and application of technologies for rail engineering vehicles has also steadily advanced. Bogies are crucial components for both locomotives and rolling stock, ensuring traction and braking, ensuring smooth operation on straight and curved lines, and mitigating track impacts on the locomotive. As railway engineering vehicles move toward higher axle loads and significantly increased load-carrying capacity, three-axle bogies have become a trending trend for railway engineering vehicles. Compared to two-axle bogies, three-axle bogies effectively reduce the load per axle, minimizing wear on the wheels and rails. Furthermore, three-axle bogies offer increased curb weight and a higher traction capacity. When navigating tight curve radii, the relative torsion between the carbody and bogie causes shear displacement of the laminated rubber stack, leading to interference between the carbody components. Excessive shear displacement can cause the rubber stack to tear, compromising the safety of the railway engineering vehicle. In order to effectively reduce the phenomenon of excessive shear displacement when the engineering vehicle has a small curve radius, the bogie's secondary shaking head stop mechanism can effectively limit the torsion of the vehicle body relative to the bogie, thereby preventing interference between components. During the production, assembly, maintenance and overhaul of engineering vehicles, bogie transportation is a necessary link, and how to achieve bogie transportation safely, reliably and conveniently is a problem that needs to be solved urgently. The existing technology also has a two-series lifting and a two-series shaking head stop device, but the two existing structures are welded and positioned separately, which takes up a lot of space, is time-consuming and labor-intensive, and is prone to interference with other components. Therefore, it is necessary to propose improvements. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide a shaking head stop device with a two-stage lifting function. The present invention integrates the two-stage lifting ring connected to the car body longitudinal beam and the two-stage shaking head stop structure connected to the bogie, thereby realizing a new device for limiting the shaking of the car body relative to the bogie and realizing the two-stage overall lifting of the bogie for rail engineering vehicles. The device realizes multiple functions, not only facilitates the lifting of the vehicle as a whole, but also effectively limits the torsion of the car body relative to the bogie, thereby preventing interference between components, improving the driving safety of railway engineering vehicles, facilitating disassembly and assembly, saving manpower and material resources, reducing costs, and improving efficiency.

[0004] The technical solution adopted by the present invention is: a shaking head stop device with a two-system lifting function, including a two-system shaking head stop seat, a two-system lifting ring and a hook. The bottom surface of the two-system shaking head stop seat is fixedly connected to the upper cover plate of the bogie frame longitudinal beam, the two sides of the two-system lifting ring are fixedly connected to the two sides of the two-system shaking head stop seat, the hook is hooked with the two-system lifting ring, and the hook is controlled to have a certain gap between the spatial position relative to the two-system lifting ring for simultaneously realizing the stopping and lifting effects. One side of the hook is fixedly connected to the side plate of the frame longitudinal beam, and one side of the upper surface of the two-system shaking head stop seat is provided with a baffle as a stop position to limit the twisting of the hook.

[0005] Further limitation of the above technical solution is that the second-stage shaking head stop seat is a U-shaped seat structure with the opening facing upward and the bottom surface is fixedly connected to the upper cover plate of the bogie frame longitudinal beam, the second-stage lifting ring is a U-shaped ring structure with the opening facing downward and the two sides are fixedly connected to the U-shaped two side plates of the second-stage shaking head stop seat, and the hook is a U-shaped hook structure with the opening facing upward.

[0006] To further limit the above technical solution, the two sides of the U-shape of the second-series lifting ring and the two side plates of the U-shape of the second-series shaking head stop seat are fixedly connected by bolts combined with nuts and gaskets; the bottom surface of the second-series shaking head stop seat and the upper cover plate of the bogie frame longitudinal beam are fixedly connected by welding or bolt connection; the hook and the side plate of the frame longitudinal beam are also fixedly connected by welding or bolt connection.

[0007] To further limit the above technical solution, a positioning support plate is provided at the bottom of the second-system shaking head stop seat for positioning the second-system lifting ring and auxiliary supporting the second-system shaking head stop seat.

[0008] As a further limitation of the above technical solution, the lower part of the hook is fixedly connected to a reinforcement plate by welding.

[0009] To further limit the above technical solution, the baffle is fixedly connected to the second-stage shaking head stop seat by welding, and a rib plate fixedly connected to the second-stage shaking head stop seat is welded to the rear of the baffle.

[0010] To further define the above technical solution, the gap between the hook and the secondary lifting ring in space is: the longitudinal gap between the hook and the secondary lifting ring is L4=L5, and the longitudinal gap is determined by the minimum gap between the hook and the secondary lifting ring without longitudinal interference when the rail engineering vehicle passes through a small curve radius; the lateral gaps L2 and L3 between the hook and the secondary lifting ring are greater than the gap L1 between the hook and the baffle; the vertical spacing between the hook and the secondary lifting ring should be greater than the maximum amplitude of the vehicle nodding vibration.

[0011] The advantages of the present invention compared with the prior art are:

[0012] 1. This solution relates to a device with a second-system swing stop and a second-system lifting function. When in use, when the rail vehicle passes through a small curve radius, the baffle contacts the hook and limits the torsion of the hook, thereby limiting the torsion angle of the car body and the bogie, so that the laminated rubber pile is within a safe torsion range. At the same time, the baffle also serves as a lateral stop. When the rail vehicle is lifted as a whole, the hook drives the second-system lifting ring, and the second-system lifting of the bogie is achieved through the bolts fixed thereon. By integrating the second-system lifting hook connected to the car body longitudinal beam and the second-system swing stop structure connected to the bogie, a new device for limiting the swing of the car body relative to the bogie and achieving the second-system lifting of the bogie as a whole for rail engineering vehicles is realized, realizing the role of multiple functions of one device, not only facilitating the lifting of the vehicle as a whole, but also effectively limiting the torsion of the car body relative to the bogie, thereby preventing interference between components, and improving the driving safety of railway engineering vehicles.

[0013] 2. This solution is made of ordinary carbon steel as a whole, and the components are connected by bolts, which makes disassembly and assembly easy, saving manpower and material resources, reducing costs and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 It is a right side view of the structure of the present invention;

[0016] Figure 3 It is a schematic diagram of the structure of the present invention in use state. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] It should be noted that, as used herein, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising the elements.

[0019] See also Figure 1-3 , details the embodiments of the present invention.

[0020] A swing stop device with a two-stage lifting function, such as Figure 1 and 2 As shown, it includes a second-system shaking head stop seat 1, a second-system lifting ring 2 and a hook 4. The bottom surface of the second-system shaking head stop seat 1 is fixedly connected to the upper cover plate of the bogie frame longitudinal beam, and the two sides of the second-system lifting ring 2 are fixedly connected to the two sides of the second-system shaking head stop seat 1. The hook 4 is hooked with the second-system lifting ring 2. The hook 4 is controlled to have a certain gap in the spatial position relative to the second-system lifting ring 2 for realizing the stopping and lifting effects at the same time. One side of the hook 4 is fixedly connected to the side plate of the frame longitudinal beam, and one side of the upper surface of the second-system shaking head stop seat 1 is provided with a baffle 7 which serves as a stop position to limit the torsion of the hook 4.

[0021] The second-stage oscillating stop seat 1 is a U-shaped seat structure with an opening facing upward, and the bottom surface is fixedly connected to the upper cover plate of the bogie frame longitudinal beam by welding or bolting. The second-stage lifting ring 2 is a U-shaped ring structure with an opening facing downward, and the two sides are fixedly connected to the U-shaped two side plates of the second-stage oscillating stop seat 1 by bolts 3 combined with nuts and gaskets. The hook 4 is a U-shaped hook structure with an opening facing upward, and is also fixedly connected to the side plates of the vehicle body longitudinal beam by welding or bolting.

[0022] A positioning support plate 6 is provided at the bottom of the second-system shaking head stop seat 1 for positioning the second-system lifting ring 2 and auxiliary supporting the second-system shaking head stop seat 1.

[0023] The lower part of the hook 4 is fixedly connected to a reinforcing plate 5 by welding, the main function of which is to enhance the load-bearing capacity of the hook 4.

[0024] The baffle 7 is fixedly connected to the second-stage shaking stop seat 1 by welding, and a rib plate 8 fixedly connected to the second-stage shaking stop seat 1 is welded to the rear of the baffle 7, and the rib plate 8 and the baffle 7 simultaneously realize the stopping of the hook 4.

[0025] The gap between the hook 4 and the secondary lifting ring 2 in space is: the longitudinal gap between the hook 4 and the secondary lifting ring 2 is L4=L5, and the longitudinal gap is determined by the minimum gap between the hook 4 and the secondary lifting ring 2 without longitudinal interference when the rail engineering vehicle passes through a small curve radius. The torsion angle of the hook 4 is limited by the baffle 7 to achieve the effect of shaking the head. The lateral gaps L2 and L3 between the hook 4 and the secondary lifting ring 2 are greater than the gap L1 between the hook 4 and the baffle 7 to achieve the effect of the baffle 7 body bearing the stop. Due to the unequal vibration of the bogies at the front and rear ends of the rail vehicle, nodding vibration will occur. In order to avoid the impact of nodding vibration on the secondary lifting ring 2, the vertical distance between the hook 4 and the secondary lifting ring 2 should be greater than the maximum amplitude of the vehicle's nodding vibration.

[0026] When using this device, Figure 3As shown, when the rail car has a small curve radius, the baffle 7 contacts the hook 4 and limits the torsion of the hook 4, thereby limiting the torsion angle of the car body and the bogie, so that the laminated rubber pile is within a safe torsion range. At the same time, the baffle 7 and the rib 8 act as a lateral stop. When the rail car is lifted as a whole, the hook 4 drives the secondary lifting ring 2 and realizes the overall lifting of the secondary system of the bogie through the bolts fixed on it.

[0027] The present invention integrates the second-system lifting structure connected to the car body longitudinal beam and the second-system shaking stop structure connected to the bogie, thereby realizing a new device for limiting the shaking of the car body relative to the bogie and realizing the overall lifting of the second system of the bogie for rail engineering vehicles. The device realizes multiple functions, not only facilitates the lifting of the vehicle as a whole, but also effectively limits the torsion of the car body relative to the bogie, thereby preventing interference between components, improving the driving safety of railway engineering vehicles, facilitating disassembly and assembly, saving manpower and material resources, reducing costs, and improving efficiency.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. The shaking stop device with two-stage lifting function is characterized by: It comprises a second-stage oscillating stopper seat (1), a second-stage lifting ring (2) and a hook (4), wherein the bottom surface of the second-stage oscillating stopper seat (1) is fixedly connected to the upper cover plate of the bogie frame longitudinal beam, the two sides of the second-stage lifting ring (2) are fixedly connected to the two sides of the second-stage oscillating stopper seat (1), the hook (4) is hooked with the second-stage lifting ring (2), and the hook (4) is controlled to have a certain gap relative to the second-stage lifting ring (2) in space for achieving both stopping and lifting effects, one side of the hook (4) is fixedly connected to the side plate of the frame longitudinal beam, and one side of the upper surface of the second-stage oscillating stopper seat (1) is provided with a baffle (7) which serves as a stop position to limit the torsion of the hook (4); The second-stage oscillating stopper seat (1) is a U-shaped seat structure with an opening facing upwards and the bottom surface is fixedly connected to the upper cover plate of the bogie frame longitudinal beam; the second-stage lifting ring (2) is a U-shaped ring structure with an opening facing downwards and the two sides are fixedly connected to the U-shaped two side plates of the second-stage oscillating stopper seat (1); the hook (4) is a U-shaped hook structure with an opening facing upwards; The clearance between the hook (4) and the secondary lifting ring (2) in spatial position is as follows: the longitudinal clearance L4 between the hook (4) and the secondary lifting ring (2) is L5, and the longitudinal clearance is determined by the minimum clearance between the hook (4) and the secondary lifting ring (2) at which no longitudinal interference occurs when the rail engineering vehicle passes through a small curve radius; the transverse clearances L2 and L3 between the hook (4) and the secondary lifting ring (2) are greater than the clearance L1 between the hook (4) and the baffle (7); and the vertical spacing between the hook (4) and the secondary lifting ring (2) should be greater than the maximum amplitude of the vehicle's nodding vibration.

2. The swing-head stop device with a two-stage lifting function according to claim 1, characterized in that: The U-shaped sides of the secondary lifting ring (2) are fixedly connected to the U-shaped side plates of the secondary oscillating stop seat (1) by means of bolts (3) combined with nuts and washers; the bottom surface of the secondary oscillating stop seat (1) is fixedly connected to the upper cover plate of the bogie frame longitudinal beam by means of welding or bolt connection; the hook (4) is also fixedly connected to the side plates of the frame longitudinal beam by means of welding or bolt connection.

3. The swing-head stop device with a two-stage lifting function according to claim 2, characterized in that: A positioning support plate (6) is provided at the bottom of the second-system shaking head stop seat (1) for positioning the second-system lifting ring (2) and auxiliary supporting the second-system shaking head stop seat (1).

4. The swing-head stop device with a two-stage lifting function according to claim 1, characterized in that: The lower portion of the hook (4) is fixedly connected to a reinforcing plate (5) by welding.

5. The swing-head stop device with a two-stage lifting function according to claim 1, characterized in that: The baffle (7) is fixedly connected to the second-stage oscillating stop seat (1) by welding, and a rib plate (8) fixedly connected to the second-stage oscillating stop seat (1) is welded and fixed to the rear of the baffle (7).

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