A roll control device for a bogie having a drawbar provided on both sides

Abstract

The application discloses a kind of anti-rolling device of bogie with pull rod setting barrier on both sides, including anti-rolling torsion bar, support, anti-rolling torsion bar has torsion bar part and the torsion arm being arranged at the both ends of torsion bar part.Torsion bar part is transversely installed in the bottom of bogie frame body by both ends of support, both ends of torsion arm keep horizontal state when train passes through straight road, it is characterized in that: the outside end of two torsion arms and the side of the bottom of each corresponding car body between two sides is respectively set up the curved force transmission mechanism that can bypass pull rod setting barrier, when car body occurs side roll, the force between the outside end of torsion arm and the side of the bottom of car body is transmitted by curved force transmission mechanism.It is characterized in that: curved force transmission mechanism can bend in any direction, so that it can bypass complex setting barrier outside bogie side, thereby solve the problem of a kind of bogie with pull rod setting barrier on both sides and add anti-rolling device.

Description

Technical Field

[0001] This invention relates to an anti-roll device for bogies with tie rods on both sides for setting up obstacles, and belongs to the field of train anti-roll technology. Background Technology

[0002] Anti-roll device is a device that prevents a flexible impedance train from rolling to one side when passing through a curve or a track with a height difference between the two sides. Its basic components include anti-roll torsion bar, tie rod and support.

[0003] like Figure 9 , 10 As shown, the anti-roll torsion bar 8 is a member that utilizes the torsional deformation of a metal elastic rod under torque to provide a torsional reaction moment. It has a torsion bar portion 81 and torsion arms 82 at both ends of the torsion bar portion 81. The torsion bar portion 81 is horizontally mounted at the bottom of the bogie frame 7 via supports 9 at both ends. The torsion arms 82 at both ends remain basically horizontal when the train passes over a straight road. The outer ends of the two torsion arms 82 are connected to the two sides of the car 6 via tie rods. The working principle of the anti-roll torsion bar 8 device is described below with the example of the left side of the car 6 rolling to the right: When the left side of the car 6 rolls to the right, the left side of the car 6 is pulled by the tie rod on the left side to the outer end of the left torsion arm 82, while the right side of the car 6 is subjected to downward pressure by the tie rod on the right side to the outer end of the right torsion arm 82. According to the principle of action and reaction, this process is actually as follows: when the left side of the carriage 6 rolls to the right, the left torsion arm 82 of the anti-roll torsion bar 8 applies a pulling force to the left side of the carriage 6 through the left tie rod to prevent the left side of the carriage 6 from rolling to the right; the right torsion arm 82 of the anti-roll torsion bar 8 applies an upward pressure to the right side of the carriage 6 through the right tie rod to prevent the right side of the carriage 6 from sinking downward. In the above process, the actual function of the anti-roll torsion bar 8 is that when the left side of the carriage 6 rolls to the right, the left carriage 6 applies a pulling force to the outer end of the left torsion arm 82 through the left tie rod. This pulling force is converted into an upward lifting force at the outer end of the right torsion arm 82 through the torsion bar part 81. This lifting force is an active lifting force applied to the right side of the carriage 6 by the right torsion arm 82. This active upward lifting force applied to the right side of the carriage 6 cooperates with the downward pulling force applied to the left side of the carriage 6 by the left tie rod, thereby effectively resisting the left side of the carriage 6 from rolling to the right.

[0004] Based on the above-mentioned operating principle, most modern trains are equipped with anti-roll torsion bars 8. Generally, to facilitate the assembly of tie rod components and vertical movement, tie rods are straight rods, and the two sides of the bogie frame 7, which serves as the installation location for the tie rods, are also basically designed as vertical planes. However, in our company's external business, we have encountered a type of bogie frame 7 with concave and convex surfaces on its outer side. This type of bogie frame 7 was not originally designed to be equipped with anti-roll torsion bars 8. When it is necessary to add anti-roll torsion bars 8 to this type of bogie frame 7, the problem arises that the straight tie rods 10 on both sides cannot be properly installed.

[0005] To address the aforementioned issues, our company conducted specialized research and determined a technical solution for equipping anti-roll devices on bogies with tie rods on both sides to accommodate obstacles. Simultaneously, we conducted a patent search to determine if there were any similar solutions in the industry. The results showed that no patent documents were found that addressed the aforementioned issues, but patent documents were found that solved other problems and were technically related to some of the technical solutions in this application.

[0006] Application number 202210466160.X, entitled "An Adjustable Torsion Bar System and Anti-Roll Method," describes an adjustable torsion bar system and anti-roll method. This system utilizes adjustable hydraulic linkages to form an adjustable torsion bar system. By controlling the flow of a liquid medium, the characteristics of the hydraulic rods are altered, allowing the linkage length to exhibit either a constant length, unidirectional elongation, or unidirectional shortening. This enables the anti-roll torsion bar system to provide either bidirectional or unidirectional anti-roll torque to meet the safe operation requirements of rail vehicles on different tracks.

[0007] Therefore, it is evident that this application cannot solve the above problems, and the subject matter of the technical solution is different from that of this application. Only the setting of the hydraulic linkage is related to this application. Summary of the Invention

[0008] The technical problem to be solved by this invention is: how to add an anti-roll device to a bogie with tie rods on both sides to provide obstacles.

[0009] To address the above problems, the technical solution proposed by this invention is as follows:

[0010] An anti-roll device for a bogie with tie rods on both sides, comprising an anti-roll torsion bar and supports, wherein the anti-roll torsion bar has a torsion bar portion and torsion arms at both ends of the torsion bar portion. The torsion bar portion is laterally mounted on the bottom of the bogie frame via supports at both ends, and the torsion arms at both ends remain horizontal when the train passes over a straight road. The device is characterized by: a bending force transmission mechanism capable of bypassing the tie rod obstacles is respectively provided between the outer ends of the two torsion arms and the corresponding two sides of the bottom of the car body; when the car body rolls, the bending force transmission mechanism transmits the force between the outer ends of the torsion arms and the sides of the bottom of the car body.

[0011] The bending force transmission mechanism includes a hydraulic mechanism and a cable mechanism. The hydraulic mechanism transmits pressure along the curved path with obstacles around the tie rod, and the cable mechanism transmits tension along the curved path with obstacles around the tie rod.

[0012] The hydraulic mechanism includes a hydraulic pipe that bends along a curved path that bypasses the tie rod and sets up an obstacle, and an upper hydraulic cylinder and a lower hydraulic cylinder that are respectively connected to the upper and lower ends of the hydraulic pipe. The upper hydraulic cylinder has an upper hydraulic piston and an upper hydraulic piston rod that connects the upper hydraulic piston to the carriage. The lower hydraulic cylinder has a lower hydraulic piston and a lower hydraulic piston rod that connects the lower hydraulic piston to the outer end of the torsion arm. The space below the upper hydraulic piston in the upper hydraulic cylinder is the upper hydraulic chamber, and the space above the lower hydraulic piston in the lower hydraulic cylinder is the lower hydraulic chamber. The upper hydraulic chamber is connected downwards through the hydraulic pipe to the lower hydraulic chamber by a closed hydraulic pressure channel filled with hydraulic oil.

[0013] The cable mechanism includes a cable and a conduit that is curved along a winding path that bypasses the tie rod for housing the cable. The cable, which is fitted inside the conduit, transmits the tension between the outer end of the torsion arm and the side of the bottom of the carriage.

[0014] The conduit is fitted and fixed inside the hydraulic pipe, with an oil passage between the conduit and the hydraulic pipe. The upper and lower ends of the cable are fixedly connected to the upper hydraulic piston and the lower hydraulic piston, respectively.

[0015] Furthermore, there are fixed conduit fixing brackets at the upper and lower ports inside the hydraulic pipe, and the center of the conduit fixing bracket has an installation hole for fitting and fixing the conduit.

[0016] Furthermore, the conduit fitted inside the hydraulic pipe is always attached to or close to the inner wall of the bend in the hydraulic pipe, so that the curvature of the conduit within the hydraulic pipe is minimized and its length is minimized.

[0017] The catheter is either a rigid catheter with a wear-resistant inner wall or a flexible catheter.

[0018] As an alternative: the space above the upper hydraulic piston in the upper hydraulic cylinder is designated as the upper hydraulic chamber two, and the space below the lower hydraulic piston in the lower hydraulic cylinder is designated as the lower hydraulic chamber two. A hydraulic pipe two, which connects the upper hydraulic chamber two and bypasses the tie rod to set an obstacle, is set between the upper hydraulic chamber two and the lower hydraulic chamber two, and hydraulic oil is filled into the hydraulic pipe two, thereby replacing the cable mechanism.

[0019] As an alternative: the bending force transmission mechanism includes a rigid bending tie rod and a connector that can bend around the tie rod to create an obstacle. The upper end of the bending tie rod is connected to the carriage via the connector, and the lower end is connected to the outer end of the torsion arm via the connector.

[0020] Beneficial effects: The bending force transmission mechanism can bend in any direction, allowing it to bypass complex obstacles on the outside of the bogie, thus solving the problem of adding anti-roll devices to bogies with tie rod obstacles on both sides; the hydraulic pipes 1 and 2 of the bending force transmission mechanism are fixed after installation, and the force transmission takes place inside the pipes. This makes the installation of the bending force transmission mechanism more adaptable to the external shape of the bogie side, and it can pass through narrow areas that can only accommodate hydraulic pipes. Attached Figure Description

[0021] Figure 1 This is a cross-sectional schematic diagram of the bending force transmission mechanism described in Embodiment 1;

[0022] Figure 2 This is a cross-sectional schematic diagram of the hydraulic mechanism described in Embodiment 1;

[0023] Figure 3 This is a cross-sectional schematic diagram of the zipper mechanism described in Embodiment 1;

[0024] Figure 4 This is a schematic diagram of the conduit inside the hydraulic pipe as described in Embodiment 1. The diagram shows the conduit pressed against the inner wall (within the circle) on the inside of the bend of the hydraulic pipe.

[0025] Figure 5 This is a top view of one port of the hydraulic pipe described in Embodiment 1;

[0026] Figure 6 This is a plan view of the catheter fixation frame described in Embodiment 1;

[0027] Figure 7 This is a cross-sectional schematic diagram of the bending force transmission mechanism described in Embodiment 2;

[0028] Figure 8 This is a three-dimensional schematic diagram of the bending force transmission mechanism described in Embodiment 3;

[0029] Figure 9 A three-dimensional schematic diagram of an existing anti-roll torsion bar.

[0030] Figure 10 This is a schematic diagram of the installation of an anti-roll torsion bar using existing technology.

[0031] In the diagram: 1. Hydraulic mechanism; 11. Upper hydraulic cylinder; 111. Upper hydraulic chamber one; 112. Upper hydraulic chamber two; 12. Lower hydraulic cylinder; 121. Lower hydraulic chamber one; 122. Lower hydraulic chamber two; 13. Upper hydraulic piston; 14. Lower hydraulic piston; 15. Upper hydraulic piston rod; 16. Lower hydraulic piston rod; 17. Hydraulic pipe one; 18. Hydraulic pipe two; 2. Cable mechanism; 21. Guide tube; 22. Cable; 3. Oil passage interval; 4. Guide tube fixing bracket; 41. Mounting hole; 5. Curved tie rod; 6. Car body; 7. Bogie frame; 8. Anti-roll torsion bar; 81. Torsion bar section; 82. Torsion arm; 9. Support; 10. Straight tie rod. Detailed Implementation

[0032] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1

[0033] like Figure 1 As shown in Figure 6, an anti-roll device for a bogie with tie rod obstacles on both sides includes an anti-roll torsion bar 8 and supports 9. The anti-roll torsion bar 8 has a torsion bar portion 81 and torsion arms 82 at both ends of the torsion bar portion. The torsion bar portion 81 is laterally mounted to the bottom of the bogie frame 7 via the supports 9 at both ends, and the torsion arms 82 at both ends remain horizontal when the train passes over a straight road. The improvement is that a bending force transmission mechanism capable of bypassing the tie rod obstacles is respectively provided between the outer ends of the two torsion arms 82 and the corresponding two sides of the bottom of the car 6. When the car rolls, the bending force transmission mechanism transmits the force between the outer ends of the torsion arms 82 and the sides of the bottom of the car 6. This solves the problem that straight tie rods cannot be installed on bogies with tie rod obstacles on both sides, and an anti-roll torsion bar device is added to this type of bogie.

[0034] The bending force transmission mechanism includes a hydraulic mechanism 1 and a cable mechanism 2. The hydraulic mechanism 1 transmits pressure along a curved path that bypasses the tie rod and contains an obstacle, while the cable mechanism 2 transmits tension along the same curved path. Generally, we consider liquids to be incompressible and possessing the characteristic of transmitting pressure in all directions. Cables, on the other hand, are flexible, and their tensile strength is negligible over short lengths. Therefore, we choose to have the hydraulic mechanism transmit pressure along a curved path that bypasses the tie rod and contains an obstacle, and the cable mechanism 2 transmit tension along the same curved path. To ensure tensile strength and wear resistance, we select steel wire cables.

[0035] The hydraulic mechanism 1 includes a hydraulic pipe 17 that bends along a curved path that bypasses an obstacle on a tie rod, and an upper hydraulic cylinder 11 and a lower hydraulic cylinder 12 that connect the upper and lower ends of the hydraulic pipe 17, respectively. The upper hydraulic cylinder 11 contains an upper hydraulic piston 13 and an upper hydraulic piston rod 15 connecting the upper hydraulic piston 13 to the carriage 6. The lower hydraulic cylinder 12 contains a lower hydraulic piston 14 and a lower hydraulic piston rod 16 connecting the lower hydraulic piston 14 to the outer end of the torsion arm 82. The space below the upper hydraulic piston 13 in the upper hydraulic cylinder 11 is the upper hydraulic chamber 111, and the space above the lower hydraulic piston 14 in the lower hydraulic cylinder 12 is the lower hydraulic chamber 121. The upper hydraulic chamber 111 extends downwards through the hydraulic pipe 17 to the lower hydraulic chamber 121, forming a closed hydraulic channel filled with hydraulic oil. In this embodiment, the space above the upper hydraulic piston 13 in the upper hydraulic cylinder 11 and the space above the lower hydraulic piston 14 in the lower hydraulic cylinder 12 are atmospheric pressure air spaces. When the vehicle body pushes the upper hydraulic piston 13 downward to press the hydraulic oil through the upper hydraulic piston rod 15, the hydraulic oil transmits pressure to the lower hydraulic piston 14 through the curved hydraulic pipe 17, so that the lower hydraulic piston 14 applies pressure to the outer end of the torsion arm 82 through the lower hydraulic piston rod 16, thereby playing the role of the traditional straight rod 10 in transmitting pressure between the outer end of the torsion arm 82 and the bottom side of the car body 6.

[0036] The cable mechanism 2 includes a cable 22 and a conduit 21, which is curved along a bend that bypasses the tie rod, for housing the cable 22. The cable 22, which is fitted inside the conduit 21, transmits the tension between the outer end of the torsion arm 82 and the bottom side of the car body 6. In this way, the cable is confined within the curved conduit 21, preventing it from being straightened when under tension. This allows the cable to transmit tension in a curved state, thus achieving the function of a conventional straight tie rod transmitting tension between the outer end of the torsion arm 82 and the bottom side of the car body 6.

[0037] Preferably, the conduit 21 is fitted and fixed inside the hydraulic pipe 17, with an oil passage gap 3 between the conduit 21 and the hydraulic pipe 17. The upper and lower ends of the cable 22 are fixedly connected to the upper hydraulic piston 13 and the lower hydraulic piston 14, respectively. In this way, the conduit 21 and the hydraulic pipe 17 can be combined into one, and a line can be selected for installation on the side of the bogie.

[0038] As a preferred method for fixing the conduit 21, a fixed conduit fixing bracket 4 is provided at the upper and lower ports inside the hydraulic pipe 17, and a mounting hole 41 is provided at the center of the conduit fixing bracket 4 to fit and fix the conduit 21.

[0039] The conduit 21, fitted inside the hydraulic pipe 17, is attached to or close to the inner wall of the bend in the hydraulic pipe 17, minimizing the curvature and length of the conduit 21 within the hydraulic pipe 17. This reduces the difficulty of bending the conduit and decreases the frictional resistance between the cable 22 and the inner wall of the conduit 21, ensuring the service life of both the cable 22 and the conduit 21. Furthermore, when the cable is under tension, the external hydraulic pipe 17 helps the conduit 21 resist deformation.

[0040] The conduit 21 can be a rigid conduit or a flexible conduit with a wear-resistant inner wall, but as a preferred option, a rigid conduit 21 made of metal is selected, which facilitates welding connection with the conduit fixing frame 4. Example 2

[0041] like Figure 7 As shown, the difference from Embodiment 1 is that the space above the upper hydraulic piston 13 in the upper hydraulic cylinder 11 is designated as the upper hydraulic chamber 112, and the space below the lower hydraulic piston 14 in the lower hydraulic cylinder 12 is designated as the lower hydraulic chamber 122. A hydraulic pipe 18, which bypasses the tie rod and sets an obstacle, is installed between the upper hydraulic chamber 112 and the lower hydraulic chamber 122, and hydraulic oil is filled into the hydraulic pipe 18 to replace the cable mechanism 2. In this way, when the vehicle body pulls the upper hydraulic piston 13 upward through the upper hydraulic piston rod 15, the upper hydraulic piston 13 presses the hydraulic oil in the upper hydraulic chamber 112 upward. The hydraulic oil transmits upward pressure to the lower hydraulic piston 14 through the curved hydraulic pipe 18 and the lower hydraulic chamber 122, causing the lower hydraulic piston 14 to apply tension to the outer end of the torsion arm 82 through the lower hydraulic piston rod 16, thereby replacing the cable mechanism 2 in transmitting tension between the outer end of the torsion arm 82 and the bottom side of the vehicle body 6. Compared with Embodiment 1, the advantage is that the setup is simpler. There are two drawbacks. First, hydraulic pipe 17 and hydraulic pipe 18 are difficult to combine into one and need to be laid separately. Second, the hydraulic oil in hydraulic pipe 18 transmits the tension between the outer end of the torsion arm 82 and the bottom side of the car body 6 by pressure. When the car body suddenly applies a pulling force to the upward hydraulic piston rod 15, the transmission resistance of the hydraulic oil in hydraulic pipe 18 will be very large. The torsion bar part 81 of the anti-roll torsion bar 8 will not have enough time to make a torsional deformation buffer response, resulting in the bogie being subjected to too much lateral rolling force, which will affect driving safety. However, this embodiment is still suitable for applications on lines with large curve radii and smooth curves. Example 3

[0042] like Figure 8As shown, the difference from the above embodiment is that the bending force transmission mechanism includes a rigid bending tie rod 5 that can bypass the obstacle of the tie rod setting and a connecting member. The upper end of the bending tie rod 5 is connected to the carriage through the connecting member, and the lower end is connected to the outer end of the torsion arm 82 through the connecting member. This embodiment is a most direct way to solve the problem, but the setting of the bending tie rod 5 not only requires a setting position, but also requires sufficient movement space when the bending tie rod 5 moves up and down. However, this embodiment is still suitable for bogie applications where the side wall has a setting position and movement space for the bending tie rod 5.

[0043] The above embodiments are only used to describe the present invention more clearly, and should not be regarded as limiting the scope of protection covered by the present invention. Any equivalent modifications should be regarded as falling within the scope of protection covered by the present invention.

Claims

1. An anti-roll device for a bogie with tie rods on both sides, comprising an anti-roll torsion bar (8) and supports (9), wherein the anti-roll torsion bar (8) has a torsion bar portion (81) and torsion arms (82) at both ends of the torsion bar portion; the torsion bar portion (81) is laterally mounted on the bottom of the bogie frame (7) via the supports (9) at both ends, and the torsion arms (82) at both ends remain horizontal when the train passes through a straight road, characterized in that: A curved force transmission mechanism capable of bypassing the tie rod is respectively provided between the outer ends of the two torsion arms (82) and the two sides of the bottom of the corresponding carriage (6). When the carriage rolls sideways, the force between the outer ends of the torsion arms (82) and the sides of the bottom of the carriage (6) is transmitted through the curved force transmission mechanism. The curved force transmission mechanism includes a hydraulic mechanism (1) and a cable mechanism (2). The hydraulic mechanism (1) transmits pressure along the curved line that bypasses the tie rod and sets up an obstacle, and the cable mechanism (2) transmits pressure along the curved line that bypasses the tie rod and sets up an obstacle. The curved path with obstacles transmits tension; the hydraulic mechanism (1) includes a hydraulic pipe (17) curved along the curved path with obstacles around the tie rod and an upper hydraulic cylinder (11) and a lower hydraulic cylinder (12) respectively connecting the upper and lower ends of the hydraulic pipe (17). The upper hydraulic cylinder (11) has an upper hydraulic piston (13) and an upper hydraulic piston rod (15) connecting the upper hydraulic piston (13) and the carriage (6). The lower hydraulic cylinder (12) has a lower hydraulic piston (14) and a lower hydraulic piston rod (15) connecting the lower hydraulic piston (14). The piston (14) and the lower hydraulic piston rod (16) at the outer end of the torsion arm (82), the space below the upper hydraulic piston (13) in the upper hydraulic cylinder (11) is the upper hydraulic chamber one (111), the space above the lower hydraulic piston (14) in the lower hydraulic cylinder (12) is the lower hydraulic chamber one (121), the upper hydraulic chamber one (111) is a closed oil pressure channel filled with hydraulic oil, which extends downward through the hydraulic pipe one (17) to the lower hydraulic chamber one (121); the cable mechanism (2) includes a cable (22) and a cable for mounting the cable. (22) The conduit (21) is curved along the curved line that bypasses the tie rod and sets up an obstacle. The tension between the outer end of the torsion arm (82) and the bottom side of the carriage (6) is transmitted by the cable (22) which is sleeved in the conduit (21). The conduit (21) is sleeved and fixed in the hydraulic pipe (17). There is an oil passage gap (3) between the conduit (21) and the hydraulic pipe (17). The upper end and the lower end of the cable (22) are fixedly connected to the upper hydraulic piston (13) and the lower hydraulic piston (14) respectively.

2. The anti-roll device for a bogie with tie rods on both sides as described in claim 1, characterized in that: The upper and lower ports of the hydraulic pipe (17) are respectively fixed with conduit fixing brackets (4), and the center of the conduit fixing bracket (4) has an installation hole (41) for fitting and fixing the conduit (21).

3. The anti-roll device for a bogie with tie rods on both sides as described in claim 2, characterized in that: The conduit (21) fitted inside the hydraulic tube (17) is always attached to or close to the inner wall of the bend of the hydraulic tube (17), so that the curvature of the conduit (21) within the hydraulic tube (17) is minimized and the length is minimized.

4. The anti-roll device for a bogie with tie rods on both sides as described in claim 1, characterized in that: The catheter (21) is a rigid catheter or a flexible catheter with a wear-resistant inner wall.

5. The anti-roll device for a bogie with tie rods on both sides as described in claim 1, characterized in that: The space above the upper hydraulic piston (13) in the upper hydraulic cylinder (11) is set as the upper hydraulic chamber two (112), and the space below the lower hydraulic piston (14) in the lower hydraulic cylinder (12) is set as the lower hydraulic chamber two (122). A hydraulic pipe two (18) that connects the upper hydraulic chamber two (112) and the lower hydraulic chamber two (122) and bypasses the tie rod to set an obstacle is set. Hydraulic oil is poured into the hydraulic pipe two (18) to replace the cable mechanism (2).

6. The anti-roll device for a bogie with tie rods on both sides as described in claim 1, characterized in that: The bending force transmission mechanism includes a rigid bending tie rod (5) that can bend around the tie rod to set an obstacle and a connector. The upper end of the bending tie rod (5) is connected to the carriage through the connector, and the lower end is connected to the outer end of the torsion arm (82) through the connector.

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