A track shock-absorbing walking device

Abstract

The present invention discloses a rail shock-absorbing walking device, comprising a main shaft connected to a frame, a walking mechanism and a shock-absorbing mechanism, wherein the main shaft is symmetrically hinged with a rotatable walking mechanism on both sides of one end away from the frame, and a shock-absorbing mechanism is also provided between the walking mechanism and the main shaft; the walking mechanism comprises a bogie, a wheel frame and a wheel, one end of the bogie is hinged to the main shaft, and the other end is connected to the wheel through the wheel frame, and a shock-absorbing mechanism is also connected between the bogie and the main shaft. The advantage of the present invention is that the bogie is hinged to the main shaft, so that the bogie can adaptively rotate around the main shaft when traveling at the connection between the tracks and entering the turnout or a small radius curve, thereby reducing the severe vibration when traveling at the above positions and improving the shock-absorbing effect. At the same time, the vibration of traveling is further reduced by setting the shock-absorbing mechanism, and the device has a simple structure and enhanced reliability.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, in particular to a rail shock-absorbing running device. Background Art

[0002] With the diversified development of train and railway technology, rail transit has shown more and more types, not only covering long-distance land transportation, but also widely used in medium and short-distance urban public transportation. Rail transit is generally divided into three categories: national railway system, intercity rail transit and urban rail transit. Rail transit generally has the advantages of large capacity, fast speed, frequent service, safety and comfort, high punctuality, all-weather, low freight and energy saving and environmental protection, but it is often accompanied by high initial investment, technical requirements and maintenance costs, and often occupies a large space.

[0003] In rail transit, a large amount of impact energy will inevitably be generated when the wheels and tracks are in contact at high speed, especially at the connection between the tracks and when entering turnouts or small radius curves. In order to reduce the vibration during vehicle driving, a shock absorbing device is usually provided between the frame and the bogie. The shock absorbing device is used to achieve shock absorption by telescoping linear motion up and down between the frame and the bogie. However, the existing bogie is only used to connect the front and rear wheels, and it does not have a shock absorbing effect, which makes the shock absorption effect of the vehicle poor during driving. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a track shock-absorbing walking device with a simple structure and good shock-absorbing effect, so as to solve the problem that the existing bogie has no shock-absorbing effect and the vehicle shock-absorbing effect is poor.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A track shock-absorbing walking device comprises a main shaft connected to a frame, a walking mechanism and a shock-absorbing mechanism, wherein the main shaft has symmetrically hinged rotatable walking mechanisms on both sides of one end away from the frame, and a shock-absorbing mechanism is further provided between the walking mechanism and the main shaft; the rotatable walking mechanisms are symmetrically hinged on both sides of the main shaft, so that the walking mechanism can adaptively rotate around the main shaft when traveling at the connection between tracks and entering a switch or a small radius curve, thereby reducing severe vibrations occurring when traveling at the above positions and improving the shock-absorbing effect. At the same time, the vibration during travel is further reduced by the provision of the shock-absorbing mechanism, and the device has a simple structure and enhanced reliability.

[0007] The traveling mechanism comprises a bogie, a wheel frame and a wheel, wherein one end of the bogie is hinged to the main shaft, and the other end is connected to the wheel through the wheel frame, and a shock absorbing mechanism is also connected between the bogie and the main shaft; the bogie is hinged to the main shaft, so that the bogie can adaptively rotate around the main shaft when traveling at the connection between the tracks and entering the turnout or a small radius curve, thereby reducing the severe vibration occurring when traveling at the above positions and improving the shock absorbing effect.

[0008] Preferably, the same symmetrical end of the bogie is hinged on the main shaft through a rotating shaft and can rotate around the rotating shaft. The other end of the bogie away from the main shaft is provided with a through hole. One end of the wheel frame is rotatably arranged in the through hole through a bearing, and the other end is connected to the wheel. The wheel frame can rotate in the through hole to ensure that when the device turns, the wheel frame can drive the wheel to rotate to adapt to different road conditions and reduce the centrifugal force generated when turning.

[0009] Preferably, the wheel frame comprises a connecting rod and a U-shaped member, one end of the connecting rod is fixed in the through hole through a bearing, and the other end is connected to the U-shaped member, and the open end of the U-shaped member is connected to the wheel through a connecting shaft.

[0010] Preferably, square openings are provided on both sides of the open end of the U-shaped member, both ends of the connecting shaft are square sections that can cooperate with the square openings, and the middle section of the connecting shaft is a cylindrical section that can pass through the center of the wheel.

[0011] Preferably, first fixing holes perpendicular to the square opening are provided on both sides of the open end of the U-shaped part, and second fixing holes with the same central axis and the same aperture as the first fixing hole are provided on the two square sections of the connecting shaft. The connecting shaft is fixed to the open end of the U-shaped part by a pin passing through the first fixing hole and the second fixing hole in sequence.

[0012] Preferably, the shock absorbing mechanism includes a ball head tie rod and a shock absorbing spring, the ball head end of the ball head tie rod is rotatably connected to the main shaft, and the other end is connected to the bogie, and a shock absorbing spring is also sleeved on the outside of the ball head tie rod, one end of the shock absorbing spring is fixed to the main shaft, and the other end is fixed to the bogie; by rotatably connecting the ball head end of the ball head tie rod to the main shaft, it is ensured that when the bogie rotates, the shock absorbing mechanism can follow the rotation of the bogie, thereby improving the adaptability of the shock absorbing mechanism and further improving the shock absorbing effect.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The bogie is hinged with the main shaft, so that the bogie can adaptively rotate around the main shaft when traveling at the connection between the tracks and entering the turnout or small radius curve, reducing the severe vibration when traveling at the above positions and improving the shock absorption effect. At the same time, the vibration of driving is further reduced by setting the shock absorption mechanism. The device has a simple structure and enhanced reliability.

[0015] 2. The wheel frame can rotate in the through hole of the bogie to ensure that when the vehicle turns, the wheel frame can drive the wheels to rotate to adapt to different road conditions and reduce the centrifugal force generated when turning.

[0016] 3. By rotatably connecting the ball end of the ball tie rod with the main shaft, it is ensured that when the bogie rotates, the shock absorbing mechanism can rotate with the bogie, thereby improving the adaptability of the shock absorbing mechanism and further improving the shock absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a track shock-absorbing traveling device according to an embodiment of the present invention;

[0018] Figure 2 It is a front view of an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection structure between the wheel frame and the wheel according to an embodiment of the present invention;

[0020] Figure 4 It is a schematic structural diagram of a wheel frame according to an embodiment of the present invention;

[0021] Figure 5 It is a schematic structural diagram of a connecting shaft according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] To facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention is further described in conjunction with the accompanying drawings.

[0023] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically limited.

[0024] See also Figure 1 and Figure 2The present embodiment discloses a rail shock-absorbing walking device, comprising a main shaft 1 connected to a frame (not shown in the figure), a walking mechanism 2 and a shock-absorbing mechanism 3, wherein the main shaft 1 is symmetrically hinged with a rotatable walking mechanism 2 on both sides of one end away from the frame, and a shock-absorbing mechanism 3 is further provided between the walking mechanism 2 and the main shaft 1; the rotatable walking mechanism 2 is symmetrically hinged on both sides of the main shaft 1, so that the walking mechanism 2 can adaptively rotate around the main shaft 1 when traveling at the connection between the tracks and entering the turnout or a small radius curve, thereby reducing the severe vibration occurring when traveling at the above positions and improving the shock-absorbing effect. At the same time, the setting of the shock-absorbing mechanism 3 further reduces the vibration during travel, and the device has a simple structure and enhanced reliability.

[0025] The traveling mechanism 2 comprises a bogie 21, a wheel frame 22 and a wheel 23. One end of the bogie 21 is hinged to the main shaft 1, and the other end is connected to the wheel 23 through the wheel frame 22. The middle section of the bogie 21 is connected to the main shaft 1 by a shock absorbing mechanism 3. The bogie 21 is hinged to the main shaft 1, so that the bogie 21 can adaptively rotate around the main shaft 1 when traveling at the connection between the tracks and entering the turnout or a small radius curve, thereby reducing the severe vibration that occurs when traveling at the above positions and improving the shock absorption effect.

[0026] See also Figure 3 The same end of the bogie 21 is symmetrically hinged on the main shaft 1 through a rotating shaft 24 and can rotate around the rotating shaft 24. The other end of the bogie 21 away from the main shaft 1 is provided with a through hole 211. One end of the wheel frame 22 is rotatably arranged in the through hole 211 through a bearing 25. The other end of the wheel frame 22 is connected to the wheel 2. The wheel frame 22 can rotate in the through hole 211 to ensure that when the device turns, the wheel frame 22 can drive the wheel 2 to rotate to adapt to different road conditions and reduce the centrifugal force generated when turning.

[0027] See also Figure 4 The wheel frame 22 includes a connecting rod 221 and a U-shaped member 222. One end of the connecting rod 221 is fixed in the through hole 211 through a bearing 25, and the other end is connected to the bottom end of the U-shaped member 222. The open end of the U-shaped member 222 is connected to the wheel 23 through a connecting shaft 26.

[0028] Furthermore, the U-shaped member 222 has square openings 2221 on both sides of the opening end. Figure 5The two ends of the connecting shaft 26 are square sections 261 that can cooperate with the square opening. The two sides of the open end of the U-shaped member 222 are also provided with first fixing holes 2222 that are perpendicular to the square opening 2221. The square section 261 of the connecting shaft 26 is also provided with a second fixing hole 2611 that has the same central axis and the same aperture as the first fixing hole 2222. The connecting shaft 26 is fixed to the open end of the U-shaped member 222 through a latch (not shown in the figure) passing through the first fixing hole 2222 and the second fixing hole 2611. The middle section of the connecting shaft 26 is a cylindrical section 262 that can pass through the center of the wheel 23. The square section 261 of the connecting shaft 26 is matched and fixed with the square opening 2221 of the U-shaped member 222 to prevent the connecting shaft 26 and the U-shaped member 222 from idling. At the same time, the cylindrical section 262 of the connecting shaft 26 is used to pass through the center of the wheel 23 to ensure that the wheel 23 can rotate on the connecting shaft 26, so that the wheel 23 can run on the track.

[0029] In the reference Figure 2 The shock absorbing mechanism 3 includes a ball head tie rod 31 and a shock absorbing spring 32. The ball head end of the ball head tie rod 31 is rotatably connected to the main shaft 1, and the other end is connected to the bogie 21. A shock absorbing spring 32 is also sleeved on the outside of the ball head tie rod 31. One end of the shock absorbing spring 32 is fixed to the main shaft 1, and the other end is fixed to the bogie 21. The ball head end of the ball head tie rod 31 is rotatably connected to the main shaft 1, so that when the bogie 21 rotates, the shock absorbing mechanism 3 can follow the rotation of the bogie 21, thereby improving the adaptability of the shock absorbing mechanism 3 and thereby improving the shock absorbing effect.

[0030] The working principle of this embodiment is: when the vehicle drives the traveling mechanism 2 through the main shaft 1 to travel at the connection between the tracks and enters the turnout or a small radius curve, vibration will be generated due to the gap or unevenness at the track connection, and the bogie 21 in the traveling mechanism 2 can adaptively rotate around the main shaft 1 to reduce the vibration generated during driving and improve the shock absorption effect, and the ball head end of the ball head tie rod 31 is rotatably connected to the main shaft 1 to ensure that when the bogie 21 rotates, the shock absorbing mechanism 3 can follow the bogie 21 to rotate, thereby improving the adaptability of the shock absorbing mechanism 3 and further improving the shock absorption effect; at the same time, since centrifugal force will be generated when turning, the present invention can rotate the wheel frame 22 in the through hole 211 of the bogie 21 to ensure that when the vehicle turns, the wheel frame 22 drives the wheel 2 to rotate to adapt to different road conditions and reduce the centrifugal force generated when turning.

[0031] It is obvious 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0032] The above-described embodiments merely represent implementation methods of the invention. The protection scope of the present invention is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements may be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A track shock-absorbing walking device, characterized in that: It includes a main shaft connected to the frame, a running mechanism and a shock absorbing mechanism, wherein the running mechanism capable of rotating is symmetrically hinged on both sides of one end of the main shaft away from the frame, and a shock absorbing mechanism is also provided between the running mechanism and the main shaft; The walking mechanism comprises a bogie, a wheel frame and a wheel, one end of the bogie is hinged to the main shaft, and the other end is connected to the wheel through the wheel frame, and a shock absorbing mechanism is also connected between the bogie and the main shaft; The same end of the bogie is symmetrically hinged on the main shaft through a rotating shaft and can rotate around the rotating shaft. The other end of the bogie away from the main shaft is provided with a through hole. One end of the wheel frame is rotatably arranged in the through hole through a bearing, and the other end is connected to the wheel. The wheel frame includes a connecting rod and a U-shaped piece, one end of the connecting rod is fixed in the through hole through a bearing, and the other end is connected to the U-shaped piece, and the open end of the U-shaped piece is connected to the wheel through a connecting shaft; Square openings are provided on both sides of the open end of the U-shaped member, the two ends of the connecting shaft are square sections that can match the square openings, and the middle section of the connecting shaft is a cylindrical section that can pass through the center of the wheel; The shock absorbing mechanism includes a ball head tie rod and a shock absorbing spring. The ball head end of the ball head tie rod is rotatably connected to the main shaft, and the other end is connected to the bogie. A shock absorbing spring is also sleeved on the outside of the ball head tie rod. One end of the shock absorbing spring is fixed to the main shaft, and the other end is fixed to the bogie.

2. A rail shock-absorbing running device according to claim 1, characterized in that: The U-shaped part has first fixing holes perpendicular to the square opening on both sides of the opening end, and the two square sections of the connecting shaft have second fixing holes with the same central axis and the same aperture as the first fixing hole. The connecting shaft is fixed to the opening end of the U-shaped part by a latch that passes through the first fixing hole and the second fixing hole in sequence.

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