CN110615012A - Track shock attenuation running gear - Google Patents

Abstract

The invention discloses a rail shock-absorbing traveling device, which comprises a main shaft connected with a vehicle frame, a traveling mechanism and a shock-absorbing mechanism. The two sides of the end of the main shaft far away from the vehicle frame are symmetrically hinged with a rotatable traveling mechanism. The traveling mechanism There is also a shock absorbing mechanism between the main shaft and the main shaft; the traveling mechanism includes a bogie, a wheel frame and wheels, 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 there is also a gap between the bogie and the main shaft. Connect the shock absorber. The advantage of the present invention is that, through the hinged connection between the bogie and the main shaft, the bogie can adaptively rotate around the main shaft when driving at the junction between the rails and when entering a turnout or a small-radius curve, reducing the severe Vibration improves the shock absorption effect, and at the same time, through the setting of the shock absorption mechanism, the driving vibration is further reduced, and the device has a simple structure and enhanced reliability.

Description

A rail shock-absorbing walking device

technical field

The invention relates to the technical field of rail transportation, in particular to a rail shock-absorbing traveling device.

Background technique

With the diversified development of train and railway technology, more and more types of rail transit have emerged, not only in long-distance land transportation, but also in short- and medium-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 transportation volume, fast speed, frequent shifts, safety and comfort, high punctuality, all-weather, low freight, energy saving and environmental protection, etc., but it is often accompanied by high initial investment, technical requirements and maintenance costs, and occupies The space is often larger.

In rail transportation, a large amount of impact energy will inevitably be generated during the high-speed contact between the wheel and the rail, especially at the joint between the rails and when entering a turnout or a small radius curve. The shock during the process is usually provided with a shock absorber between the frame and the bogie, and the shock absorber is used to move up and down between the frame and the bogie to achieve shock absorption, while the existing bogie is only used to connect The front and rear wheels do not have a shock absorption effect, which makes the shock absorption effect of the vehicle poor during driving.

Contents of the invention

The technical problem to be solved by the present invention is to provide a rail shock-absorbing running device with simple structure and good shock-absorbing effect, so as to solve the problems that the existing bogies do not have shock-absorbing effect and the vehicle's shock-absorbing effect is not good.

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

A rail shock-absorbing traveling device, comprising a main shaft connected to a vehicle frame, a traveling mechanism and a shock-absorbing mechanism, a rotatable traveling mechanism is symmetrically hinged on both sides of one end of the main shaft far away from the vehicle frame, and the distance between the traveling mechanism and the main shaft There is also a shock-absorbing mechanism; a rotatable walking mechanism is symmetrically hinged on both sides of the main shaft, so that the traveling mechanism can adaptively rotate around the main shaft when driving at the joint between the tracks and entering a turnout or a small-radius curve, reducing travel. Vigorous vibrations in the above positions improve the shock absorption effect, and at the same time, through the setting of the shock absorption mechanism, the driving vibration is further reduced, and the device has a simple structure and enhanced reliability.

The traveling mechanism includes a bogie, a wheel frame and wheels. One end of the bogie is hinged to the main shaft, and the other end is connected to the wheel through the wheel frame. A shock absorbing mechanism is also connected between the bogie and the main shaft; , so that the bogie can adaptively rotate around the main shaft when driving at the joint between the tracks and entering a turnout or a small radius curve, reducing the severe vibration when driving at the above position and improving the shock absorption effect.

Preferably, the opposite 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, and one end of the wheel frame is rotatable through a bearing. It is arranged in the through hole, and the other end is connected to the wheel; the wheel frame can rotate in the through hole to ensure that when the device is turning, the wheel frame can drive the wheel to rotate to adapt to different road conditions and reduce the centrifugal force generated when turning.

Preferably, 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.

Preferably, square openings are provided on both sides of the opening end of the U-shaped piece, both ends of the connecting shaft are square sections that can fit into the square openings, and the middle section of the connecting shaft is a cylindrical section that can pass through the center of the wheel.

Preferably, both sides of the open end of the U-shaped piece are also provided with first fixing holes perpendicular to the square opening, and the two square sections of the connecting shaft are also provided with the same central axis and the same hole diameter as the first fixing hole. In the second fixing hole, the connecting shaft passes through the first fixing hole and the second fixing hole in turn through the bolt and is fixed to the open end of the U-shaped piece.

Preferably, the shock-absorbing mechanism includes a ball-joint rod and a shock-absorbing spring, the ball-end of the ball-joint rod is rotatably connected to the main shaft, and the other end is connected to the bogie, and the outside of the ball-joint rod is also sleeved with Damping spring, one end of the damping spring is fixed on the main shaft, and the other end is fixed on the bogie; through the rotatable connection between the ball end of the ball joint rod and the main shaft, it is ensured that the shock absorbing mechanism can follow the bogie when the bogie is rotating Rotate, improve the adaptability of the shock absorbing mechanism, and then improve the shock absorbing effect.

Compared with prior art, the beneficial effect of the present invention is:

1. Through the hinged connection between the bogie and the main shaft, the bogie can adaptively rotate around the main shaft when driving at the junction between the tracks and when entering a turnout or a small-radius curve, reducing the severe vibration when driving at the above positions and improving the speed reduction. The shock effect is improved, and the vibration of driving is further reduced through the setting of the shock absorbing mechanism, and the structure of the device is simple and the reliability is enhanced.

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

3. Through the rotatable connection between the ball end of the ball tie rod and the main shaft, it is ensured that when the bogie is rotating, the shock absorbing mechanism can follow the rotation of the bogie, improving the adaptability of the shock absorbing mechanism and further improving the shock absorbing effect.

Description of drawings

Fig. 1 is the structural representation of a kind of track damping traveling device of the embodiment of the present invention;

Fig. 2 is the front view of the embodiment of the present invention;

Fig. 3 is a schematic diagram of the connection structure between the wheel carrier and the wheel according to the embodiment of the present invention;

Fig. 4 is a structural schematic diagram of a wheel carrier according to an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a connecting shaft according to an embodiment of the present invention.

Detailed ways

In order to facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

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

Referring to Fig. 1 and Fig. 2, the present embodiment discloses a rail shock-absorbing traveling device, including a main shaft 1 connected to a vehicle frame (not shown in the figure), a traveling mechanism 2 and a shock-absorbing mechanism 3, and the main shaft 1 is far away from the vehicle A rotatable walking mechanism 2 is symmetrically hinged on both sides of one end of the frame, and a shock absorbing mechanism 3 is also provided between the walking mechanism 2 and the main shaft 1; Mechanism 2 can adaptively rotate around the main shaft 1 when driving at the junction between the tracks and when entering a turnout or a small radius curve, reducing the severe vibration that occurs when driving at the above positions and improving the shock absorption effect. At the same time, the shock absorption mechanism 3 The setting further reduces the vibration of driving, and the device has a simple structure and enhanced reliability.

The traveling mechanism 2 includes 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, and the middle section of the bogie 21 is connected to the main shaft 1 Shock absorbing mechanism 3; the bogie 21 is hinged with the main shaft 1, so that the bogie 21 can adaptively rotate around the main shaft 1 when driving at the junction between the rails and entering a turnout or a small-radius curve, reducing the time when driving in the above positions. The violent vibration that appears, improves the shock absorption effect.

Referring to Fig. 3, the same symmetrical end of the bogie 21 is hinged on the main shaft 1 through the rotating shaft 24 and can rotate around the rotating shaft 24, and the other end of the bogie 21 away from the main shaft 1 is provided with a through hole 211, the One end of the wheel frame 22 is rotatably arranged in the through hole 211 by the bearing 25, and the other end of the wheel frame 22 is connected to the wheel 2, and the wheel frame 22 can rotate in the through hole 211 to ensure that the wheel frame 22 can rotate when the device is turning. Drive the wheel 2 to rotate to adapt to different road conditions and reduce the centrifugal force generated when turning.

4, the wheel frame 22 includes a connecting rod 221 and a U-shaped piece 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 piece 222. The U-shaped The open end of the member 222 is connected with the wheel 23 through the connecting shaft 26 .

Further, both sides of the open end of the U-shaped piece 222 are provided with square openings 2221. Referring to FIG. A first fixing hole 2222 perpendicular to the square opening 2221 is also provided on both sides of the opening end, and a second fixing hole 2611 with the same central axis and the same diameter as the first fixing hole 2222 is also provided on the square section 261 of the connecting shaft 26 , the connecting shaft 26 passes through the first fixing hole 2222 and the second fixing hole 2611 and is fixed to the open end of the U-shaped piece 222 through a bolt (not shown in the figure), and the middle section of the connecting shaft 26 is capable of passing through the wheel 23 The cylindrical section 262 in the center is fixed by the square section 261 of the connecting shaft 26 and the square opening 2221 of the U-shaped piece 222 to prevent the connecting shaft 26 and the U-shaped piece 222 from idling, and at the same time, the cylindrical section 262 of the connecting shaft 26 is used to pass through the wheel 23 center, guarantee that wheel 23 can rotate on connecting shaft 26, realize that wheel 23 travels on track.

Referring to FIG. 2 , the shock absorbing mechanism 3 includes a ball end rod 31 and a shock absorbing spring 32 , the ball end of the ball end rod 31 is rotatably connected to the main shaft 1 , and the other end is connected to the bogie 21 . The outside of the ball tie rod 31 is also covered with a shock absorbing spring 32, one end of the shock absorbing spring 32 is fixed on the main shaft 1, and the other end is fixed on the bogie 21, and the ball end of the ball tie rod 31 and the main shaft 1 can rotate The connection ensures that when the bogie 21 is rotating, the shock absorbing mechanism 3 can follow the rotation of the bogie 21, so as to improve the adaptability of the shock absorbing mechanism 3 and further improve the shock absorbing effect.

The working principle of this embodiment is: when the vehicle drives the traveling mechanism 2 through the main shaft 1 to drive on the joint between the tracks and enters a turnout or a small radius curve, vibration will be generated due to the gap or unevenness of the track joint, and the vehicle will pass through 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 through the rotatable connection between the ball end of the ball joint rod 31 and the main shaft 1, the bogie can be guaranteed 21 When turning, the shock absorbing mechanism 3 can follow the bogie 21 to rotate, improve the adaptability of the shock absorbing mechanism 3, and further improve the shock absorbing effect; at the same time, because the centrifugal force will be generated when turning, the present invention can use the wheel frame 22 to turn Rotation in the through hole 211 of the frame 21 ensures that when the vehicle is turning, the wheel frame 22 drives the wheel 2 to rotate to adapt to different road conditions and reduce the centrifugal force generated when turning.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the invention, and any reference sign in a claim shall not be construed as limiting the claim concerned.

The above-described embodiments only represent the implementation of the invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments. For those skilled in the art, some deformations and changes can also be made without departing from the concept of the present invention. Improvements, these all belong to the protection scope of the present invention.

Claims (6)

1. A rail damping running device, characterized in that: comprise a main shaft connected with a vehicle frame, a running mechanism and a shock absorbing mechanism, the two sides of an end of the main shaft away from the vehicle frame are symmetrically hinged with a rotatable running mechanism, and the There is also a shock absorbing mechanism between the traveling mechanism and the main shaft; The traveling mechanism includes a bogie, a wheel frame and wheels. One end of the bogie is hinged to the main shaft, and the other end is connected to the wheel through the wheel frame. A shock absorbing mechanism is also connected between the bogie and the main shaft. 2. A rail shock-absorbing traveling device according to claim 1, characterized in that: the same symmetrical end of the bogie is hinged on the main shaft through a rotating shaft and can rotate around the rotating shaft, and the bogie is far away from the main shaft The other end of the wheel frame is provided with a through hole, and 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. 3. A rail shock-absorbing traveling device according to claim 2, characterized in that: 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 A shaped piece, the open end of the U-shaped piece is connected to the wheel through a connecting shaft. 4. A rail shock-absorbing walking device according to claim 3, characterized in that: both sides of the opening end of the U-shaped piece are provided with square openings, and the two ends of the connecting shaft are capable of matching with the square openings. The square section, the middle section of the connecting shaft is a cylindrical section that can pass through the center of the wheel. 5. A rail shock-absorbing walking device according to claim 4, characterized in that: both sides of the opening end of the U-shaped piece are also provided with first fixing holes perpendicular to the square opening, and the two sides of the connecting shaft A second fixing hole with the same central axis and the same diameter as the first fixing hole is also provided on the square segment, and the connecting shaft passes through the first fixing hole and the second fixing hole in turn through the bolt and is fixed to the open end of the U-shaped piece. 6. A rail shock-absorbing traveling device according to claim 1, characterized in that: the shock-absorbing mechanism includes a ball-joint rod and a shock-absorbing spring, and the ball end of the ball-joint rod is rotatably connected to the main shaft , the other end is connected to the bogie, and a damping spring is sheathed on the outer side of the ball tie rod, and one end of the damping spring is fixed on the main shaft, and the other end is fixed on the bogie.