Gear and rack drive railcar bogie

Abstract

The utility model relates to rail transit technical field, specifically disclose a gear and rack drive rail car bogie. The gear and rack drive rail car bogie includes framework, wheel group, power source, drive gear, damping device and anti side roll device, wheel group is installed on the framework, and it includes at least one of supporting wheel, guide wheel and safety wheel, plays the supporting, guiding, anti-overturning effect, power source is installed on the framework and is connected with drive gear, drive gear is engaged with the rack on the track, provides the driving force for the bogie travel on the track, damping device is installed on the framework, the upper part supports the carriage, plays the role of buffering the vibration and impact between bogie and carriage, anti side roll device is installed on the framework, and the left and right swing of the carriage on the bogie is limited. The whole structure is simple, and has strong climbing ability, and the stability, comfort can be effectively guaranteed, can use the existing rail steel structure and rail foundation, saves the cost.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a gear and rack driven railcar bogie. Background Technology

[0002] The cogwheel mountain rail vehicle is a new type of rail transit vehicle used in mountain railways, often referred to as a "train adept at climbing mountains." Its running gear is equipped with multiple gears that mesh with a rack mounted in the middle of the track when climbing, using the meshing force of the gears and rack to move steadily forward. The climbing ability of the cogwheel mountain rail vehicle is more than 10 times greater than that of a railway locomotive, capable of climbing slopes of up to 30 degrees. Due to its high safety, adaptability, and minimal environmental impact, the cogwheel train is particularly suitable for sightseeing routes in mountainous areas or tourist attractions, and it is expected to become one of the main modes of transportation for mountain tourism in China in the future.

[0003] Currently, existing rack mountain climbing vehicles are constrained by the track type, resulting in a large overturning moment in the bogies. This limits the vehicle's width design, making it unsuitable for high-capacity transport needs and significantly impacting its scalability. The vehicles experience significant centrifugal force when cornering, requiring speed reduction to balance the overturning moment, which affects operational efficiency and comfort. Furthermore, the track foundation must withstand substantial bending moments, necessitating a larger foundation to resist these moments from the track supports, causing significant damage to the original terrain and increasing costs.

[0004] Therefore, it is of great significance to design a bogie that has a simple structure, strong climbing ability, and can effectively guarantee stability and comfort. Utility Model Content

[0005] The main objective of this invention is to provide a rack and pinion driven bogie for a railcar. This bogie includes a frame, wheel set, power source, drive gear, shock absorber, and anti-roll device. The wheel set, mounted on the frame, includes at least one of a support wheel, guide wheel, and safety wheel. The support wheel provides support, the guide wheel provides guidance, and the safety wheel prevents overturning. The power source, mounted on the frame and connected to the drive gear, meshes with a rack on the track to provide driving force for the bogie's movement on the track. The shock absorber, mounted on the frame, supports the car body and buffers vibrations and impacts between the bogie and the car body. The anti-roll device, mounted on the frame, limits the lateral swaying of the car body on the bogie. The overall structure is simplified, possesses strong climbing ability, and effectively ensures stability and comfort. It can utilize existing rail steel structures and track foundations, saving costs. Specific technical solutions are as follows: A rack and pinion driven railcar bogie, carrying a car and capable of traveling on a rack-driven track, includes a frame, wheel set, power source, drive gear, shock absorber, and anti-roll device. The wheel set, mounted on the frame, includes at least one of a support wheel, a guide wheel, and a safety wheel. The support wheel provides support, the guide wheel provides guidance, and the safety wheel prevents overturning. The power source, mounted on the frame and connected to the drive gear, meshes with the rack on the track to provide driving force for the bogie's movement on the track. The shock absorber, mounted on the frame and supporting the car above, buffers vibrations and impacts between the bogie and the car. The anti-roll device, mounted on the frame, limits the lateral swaying of the car on the bogie.

[0006] Preferably, the frame includes longitudinal and transverse members, with multiple longitudinal and transverse members forming a frame structure; the longitudinal members are arranged along the length of the track. More preferably, the multiple longitudinal and transverse members are welded to form a rectangular frame structure, which itself must have sufficient strength to transmit traction force and support the load of the carriage, etc.

[0007] Preferably, there are two sets of power sources, spaced apart on the transverse bars at both ends of the frame; there are also two sets of drive gears, each corresponding to a power source. The two sets of power sources at the front and rear of the bogie ensure sufficient driving power for unidirectional movement, improving climbing ability. Furthermore, they provide a power foundation for bidirectional movement of the bogie.

[0008] Preferably, the drive motor is a three-in-one geared motor; the drive gear is mounted on the output end of the three-in-one geared motor. The drive motor adopts a three-in-one geared motor, which has a compact structure.

[0009] Preferably, the anti-roll device comprises two sets; each anti-roll device includes an anti-roll torsion bar, a connecting rod, and an adjusting rod. Both ends of the anti-roll torsion bar are hinged to connecting rods, and the two connecting rods are adjustablely connected to two opposing longitudinal rods in the frame via adjusting rods. The use of two sets of anti-roll devices, employing a combination of anti-roll torsion bars, connecting rods, and adjusting rods, allows for fine-tuning according to actual conditions, effectively buffering vibrations and impacts between the bogie and the car body.

[0010] Preferably, wheel sets are provided at all four corners of the frame structure; each wheel set includes a wheel frame and support wheels, guide wheels, and safety wheels mounted on the wheel frame. The support wheels contact the upper surface of the track; the guide wheels contact the side of the track; and the safety wheels are located below the track. The wheel sets at all four corners of the frame structure simultaneously provide support, guidance, and anti-tipping functions at multiple points, improving the stability and comfort of the bogie's movement.

[0011] Preferably, the number of vibration damping devices is four sets, and the four sets of vibration damping devices are located at the four corners of the frame structure. Vibration damping devices are installed at all four corners of the frame structure to realize the effect of vibration and impact at multiple points between the bogie and the car body. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the gear and rack driven railcar bogie being assembled onto the track in an embodiment of this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of a bogie for a medium gear and rack driven railcar; Figure 3 for Figure 1 A schematic diagram showing the relationship between the wheelset and the track; Figure 4 yes Figure 3 Side view; The components include: 1. Frame, 1.1. Longitudinal rod, 1.2. Transverse rod; 2. Wheel set, 2.1. Wheel frame, 2.2. Support wheel, 2.3. Guide wheel, 2.4. Safety wheel; 3. Power source, 4. Drive gear; 5. Shock absorption device; 6. Anti-roll device, 6.1. Anti-roll torsion bar, 6.2. Connecting rod, 6.3. Adjusting rod; 7. Track, 7.1. Rack; 8. Track column.

[0014] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] A rack and pinion driven bogie for a railcar, see details. Figures 1-4 The carriage can travel on track 7, which has three parallel tracks, all of which are mounted on the ground via track posts 8. The middle track 7 has a rack 7.1. See details. Figure 1 .

[0021] The rack and pinion driven railcar bogie includes a frame 1, wheel set 2, power source 3, drive gear 4, shock absorption device 5, and anti-roll device 6. See details below. Figure 1 and Figure 2 The detailed structure is as follows: The frame 1 includes longitudinal bars 1.1 and transverse bars 1.2, and multiple longitudinal bars 1.1 and multiple transverse bars 1.2 form a frame structure; the longitudinal bars 1.1 are arranged along the length of the track.

[0022] The wheel set 2 is mounted on the frame and includes at least one of a support wheel, a guide wheel, and a safety wheel. The support wheel provides support, the guide wheel provides guidance, and the safety wheel prevents tipping. In this embodiment, wheel sets 2 are provided at each of the four corners of the frame structure, with two wheel sets forming a unit, symmetrically arranged on the tracks on both sides. The wheel set 2 includes a wheel frame 2.1 and a support wheel 2.2, a guide wheel 2.3, and a safety wheel 2.4 mounted on the wheel frame 2.1, as detailed below. Figure 3 and Figure 4 The support wheel 2.2 contacts the upper surface of the track; the guide wheel 2.3 contacts the side of the track; and the safety wheel 2.4 is located below the track. In other words, the support wheel 2.2, guide wheel 2.3, and safety wheel 2.4 surround the track 7 on the inside, preventing the bogie from tipping over or derailing on the track.

[0023] The power source 3 is mounted on the frame and connected to the drive gear 4. The drive gear 4 meshes with the rack 7.1 on the track 7, providing driving force for the bogie to travel on the track. In this embodiment, there are two sets of power sources 3, which are spaced apart on the transverse rods 1.2 at both ends of the frame 1, and the power sources are located below the frame 1, resulting in a compact structure. There are also two sets of drive gears 4, with each drive gear 4 corresponding to one of the power sources 3. More preferably, the drive motor is a three-in-one geared motor; the drive gear 4 is mounted on the output end of the three-in-one geared motor.

[0024] The shock absorber 5 is installed on the frame, supporting the carriage above, and serves to buffer vibrations and impacts between the bogie and the carriage. The shock absorber 5 can be an existing, mature product purchased externally. More preferably, the number of shock absorbers 5 is four sets, located at the four corners of the frame structure.

[0025] The anti-roll device 6 is installed on the frame to limit the left and right swaying of the car body on the bogie. In this embodiment, preferably, there are two sets of anti-roll devices 6; each anti-roll device 6 includes an anti-roll torsion bar 6.1, a connecting rod 6.2, and an adjusting rod 6.3. Both ends of the anti-roll torsion bar 6.1 are hinged to the connecting rod 6.2, and the two connecting rods 6.2 are respectively adjustablely connected to two longitudinal rods 1.1 arranged opposite to each other in the frame 1 through the adjusting rod 6.3.

[0026] The technical solution applied in this embodiment specifically includes: using wheel set structures in the rack car bogie combination, using anti-roll torsion bars in the rack car bogie combination, using shock absorption devices in the rack car bogie combination, and using a three-in-one geared motor and drive gear arrangement on the rack car bogie. The overall structure is simplified, has strong climbing ability, and can effectively ensure stability and comfort. It can also reuse existing track steel structures and track foundations, saving costs.

[0027] The technical solution applied in this embodiment offers higher safety and comfort compared to existing mountain climbing rack vehicles in the tourism market. It also boasts extremely high cost-effectiveness compared to dual-rail rack vehicles from rail transit manufacturers, with a system significantly lower cost than rail transit products. This makes it more suitable for applications in mountainous scenic areas, theme parks, and other similar settings, demonstrating strong practicality.

[0028] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A rack and pinion driven bogie for a railcar, carrying a carriage capable of traveling on a rack-driven track, characterized in that, The bogie includes a frame (1), wheel set (2), power source (3), drive gear (4), shock absorber (5), and anti-roll device (6). The wheel set (2) is mounted on the frame and includes at least one of a support wheel, a guide wheel, and a safety wheel. The support wheel provides support, the guide wheel provides guidance, and the safety wheel prevents overturning. The power source (3) is mounted on the frame and connected to the drive gear (4). The drive gear (4) meshes with a rack on the track to provide driving force for the bogie to travel on the track. The shock absorber (5) is mounted on the frame and supports the car body on top, serving to buffer the vibration and impact between the bogie and the car body. The anti-roll device (6) is mounted on the frame and restricts the left and right sway of the car body on the bogie.

2. The gear and rack driven railcar bogie as described in claim 1, characterized in that, The frame (1) includes longitudinal bars (1.1) and transverse bars (1.2), and multiple longitudinal bars (1.1) and multiple transverse bars (1.2) form a frame structure; the longitudinal bars (1.1) are arranged along the length of the track.

3. The gear and rack driven railcar bogie as described in claim 2, characterized in that, The number of power sources (3) is two sets, and the two sets of power sources (3) are set at intervals on the transverse rods (1.2) at both ends of the frame (1); The number of drive gears (4) is two sets, and the drive gears (4) are set one-to-one with the power source (3).

4. The gear and rack driven railcar bogie as described in claim 3, characterized in that, The power source is a three-in-one geared motor; the drive gear (4) is installed at the output end of the three-in-one geared motor.

5. The rack and pinion driven railcar bogie as described in claim 2, characterized in that, The number of the anti-roll device (6) is two sets; the anti-roll device (6) includes an anti-roll torsion bar (6.1), a connecting rod (6.2) and an adjusting rod (6.3). The two ends of the anti-roll torsion bar (6.1) are hinged to the connecting rod (6.2). The two connecting rods (6.2) are respectively adjustablely connected to the two longitudinal rods (1.1) arranged opposite to each other in the frame (1) through the adjusting rod (6.3).

6. The gear and rack driven railcar bogie as described in any one of claims 2-5, characterized in that, Wheel sets (2) are provided at all four corners of the frame structure; The wheel set (2) includes a wheel frame (2.1) and a support wheel (2.2), a guide wheel (2.3) and a safety wheel (2.4) disposed on the wheel frame (2.1). The support wheel (2.2) is in contact with the upper surface of the track; the guide wheel (2.3) is in contact with the side of the track; and the safety wheel (2.4) is located below the track.

7. The gear and rack driven railcar bogie as described in claim 6, characterized in that, The number of the damping devices (5) is four sets, and the four sets of damping devices are located at the four corners of the frame structure.

Images