Gauge-adjustable bogie

Abstract

The utility model discloses a track gauge adjustable bogie which comprises a bogie body, walking mechanisms are installed on the front side and the rear side of the bogie body, each walking mechanism comprises a rotating shaft, walking wheels, a connecting rod, a connecting block and a locking screw, the rotating shafts are installed on the bogie body in a rotating mode, and the left walking wheel and the right walking wheel are installed on the rotating shafts in a sleeved mode. Connecting rods are fixed to the opposite sides of the walking wheels, the connecting rods are installed in connecting blocks arranged on the rotating shafts in a penetrating mode, locking screws are installed in threaded holes of the connecting blocks, plug pins are arranged at the ends of the locking screws, and the plug pins are inserted into locking grooves in the surfaces of the connecting rods and used for fixing the track gauge; the track gauge is adjusted through cooperation of the walking wheels and the connecting rods, reliable locking is achieved through cooperation of the plug pins and the locking grooves, loosening and failure in the running process are avoided, and the track gauge adjusting device is simple in structure, convenient to adjust, accurate in positioning and high in stability.

Description

Technical Field

[0001] This utility model belongs to the field of bogie technology, specifically relating to a bogie with adjustable track gauge. Background Technology

[0002] Track gauge refers to the distance between two railway rails and is a crucial parameter determining the adaptability of railway vehicles. Different countries and regions use different standard track gauges, and even different track systems within the same country may use different gauge standards, such as standard gauge, narrow gauge, or broad gauge. To improve the adaptability of railway vehicles on tracks with different gauges, developing bogies with adjustable track gauge has become an important technological direction.

[0003] Existing adjustable gauge bogie structures typically rely on complex hydraulic devices or automated systems for adjustment, which not only increases the manufacturing and maintenance costs of the bogie but also results in complex structures, cumbersome adjustment processes, and problems such as inaccurate positioning, low adjustment efficiency, and poor operational stability. Furthermore, some existing solutions lack a reliable locking mechanism after gauge adjustment, making them susceptible to displacement due to vibration or load impacts, affecting the safety and stability of train operation. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a bogie with adjustable track gauge, which can be easily adjusted and reliably positioned.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable gauge bogie includes a bogie body, with a traveling mechanism installed on both the front and rear sides of the bogie body. The traveling mechanism includes a rotating shaft rotatably mounted on the bogie body, with two traveling wheels mounted on the rotating shaft. The traveling wheels and the rotating shaft rotate synchronously.

[0007] Several connecting rods are fixed on the opposite side of each of the two walking wheels. Two circular connecting blocks are fixed at the part of the pivot located between the two walking wheels. The connecting rods pass through the connecting blocks, and locking screws for locking the connecting rods are installed on the circumferential surface of the connecting blocks.

[0008] Furthermore, stepped shafts are fixed at both ends of the rotating shaft, and multiple transversely arranged limiting ribs are fixed on the outer surface of the rotating shaft.

[0009] Furthermore, the side of the connecting block has several through guide holes, and the circumferential surface of the connecting block has threaded holes.

[0010] Furthermore, the locking screw is threaded into the threaded hole, and the end of the locking screw is fixed with a pin that extends into the guide hole.

[0011] Furthermore, a sleeve hole is provided in the center of the traveling wheel, and a limiting groove that cooperates with the limiting rib is provided on the inner side of the sleeve hole.

[0012] Furthermore, the outer surface of the connecting rod is provided with multiple locking grooves evenly arranged from left to right, and the width of the locking grooves is the same as the diameter of the pin.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention achieves precise gauge adjustment by setting a traveling mechanism on the front and rear sides of the bogie body and through the cooperative structure between the traveling wheels, connecting rods, connecting blocks and locking screws in the traveling mechanism, overcoming the problems of complex and inconvenient operation of existing gauge adjustment structures; the traveling wheels move relative to each other through the connecting rods passing through the connecting blocks, so that the gauge adjustment process does not require a complex hydraulic system or electronic control device, effectively simplifying the structure and improving adjustment efficiency and ease of operation.

[0015] This invention achieves stable locking of the adjusted track gauge by setting a locking screw and a pin structure, and inserting the pin into the locking groove on the surface of the connecting rod. This avoids the problem of the connecting parts becoming loose due to vibration or load impact during train operation. The pin and the locking groove are a point-to-point limiting method, which can ensure that each component maintains reliable positioning in the running state after adjustment, thereby solving the problems of easy loosening and insufficient positioning accuracy in the prior art.

[0016] This invention achieves precise matching between the traveling wheel and the rotating shaft by setting a limiting rib on the outside of the rotating shaft and opening a limiting groove in the sleeve hole at the center of the traveling wheel. This structure effectively prevents wheel rotation errors during adjustment and offset problems during operation, improves operational stability and overall vehicle safety, and overcomes the problem of poor operational reliability caused by weak traveling wheel positioning methods in traditional structures.

[0017] This invention achieves an integrated design of guiding and limiting the connecting rod by opening a guide hole on the connecting block and allowing the connecting rod to slide along the guide hole, and then precisely locking it with a locking screw in the threaded hole. This structure improves the smoothness and accuracy of the adjustment process and makes up for the defects of insufficient guiding of the connecting structure and imperfect locking mechanism in traditional gauge adjustment schemes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the walking mechanism of this utility model;

[0020] Figure 3This is a schematic diagram of the rotating shaft of this utility model;

[0021] Figure 4 This is a schematic diagram of the connecting block of this utility model;

[0022] Figure 5 This is a schematic diagram of the walking wheel of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Bogie body; 2. Traveling mechanism; 21. Traveling wheel; 211. Limiting groove; 22. Connecting rod; 221. Locking groove; 23. Rotating shaft; 231. Limiting rib; 232. Stepped shaft; 24. Locking screw; 241. Pin; 25. Connecting block; 251. Threaded hole; 252. Guide hole. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, an adjustable gauge bogie includes a bogie body 1, with a traveling mechanism 2 installed on both the front and rear sides of the bogie body 1. The traveling mechanism 2 includes a rotating shaft 23 rotatably mounted on the bogie body 1. Two traveling wheels 21 are fitted on the rotating shaft 23, and the traveling wheels 21 form a mating structure with the rotating shaft 23 through sleeve holes. A limiting structure ensures that the traveling wheels 21 rotate synchronously with the rotating shaft 23 during operation, ensuring the stability of the vehicle running on the track. By setting the traveling mechanism 2 at the front and rear of the bogie body 1, the bogie has basic load-bearing and rolling capabilities, providing a structural basis for the subsequent implementation of the gauge adjustment function.

[0027] Several connecting rods 22 are fixed on opposite sides of the two traveling wheels 21. The connecting rods 22 form a mechanical connection channel between the traveling wheels 21, facilitating simultaneous movement of the two traveling wheels 21 to maintain balance during adjustment. Two circular connecting blocks 25 are fixed to the shaft 23 located between the two traveling wheels 21. The connecting blocks 25 are ring-shaped and installed on the outside of the shaft 23. The connecting rods 22 pass through the connecting blocks 25, and the connecting blocks 25 serve to guide and support the connecting rods 22. The circumferential surface of the connecting blocks 25 is threaded with locking screws 24 for locking the connecting rods 22. The locking screws 24 are used to limit the connecting rods 22 after the track gauge adjustment is completed, preventing the connecting rods 22 from loosening due to vibration during train operation, ensuring the stability and reliability of the adjustment position, and effectively overcoming the defect of easy loosening after adjustment in the prior art.

[0028] like Figure 3 As shown, both ends of the rotating shaft 23 are fixed with stepped shafts 232. The stepped shafts 232 and the mounting base of the traveling mechanism 2 form an axial limiting fit to maintain the stability of the rotating shaft 23 in the axial direction. Multiple transversely arranged limiting ribs 231 are fixed on the outer surface of the rotating shaft 23. The limiting ribs 231 can be embedded in the limiting grooves 211 provided in the central sleeve hole of the traveling wheel 21 to achieve relative fixation between the rotating shaft 23 and the traveling wheel 21 and prevent the traveling wheel 21 from slipping during the adjustment of the track gauge.

[0029] like Figure 4 As shown, the side of the connecting block 25 has several through guide holes 252, which form a sliding guide fit with the connecting rod 22, so that the connecting rod 22 can move stably along the connecting block 25 during adjustment; the circumferential surface of the connecting block 25 has a threaded hole 251, which is used to install the locking screw 24; the above structure solves the problem of lack of effective guide support in the existing track gauge adjustment structure. Through the cooperation of the guide holes 252 and the threaded holes 251, the smoothness of the adjustment process can be guaranteed, and the accuracy of the locking function can be achieved.

[0030] like Figure 4 As shown, the locking screw 24 is threaded into the threaded hole 251, and the threaded fit ensures that the locking screw 24 can be adjusted in the circumferential direction. The end of the locking screw 24 is fixed with a pin 241 extending into the guide hole 252. The pin 241 can be inserted into the locking groove 221 provided on the surface of the connecting rod 22 to lock the position of the connecting rod 22 after adjustment. The pin 241 and the locking groove 221 are point-to-point limiters with a compact structure, which can effectively prevent the connecting rod 22 from sliding axially or radially, and solve the problem of inaccurate positioning after traditional adjustment.

[0031] like Figure 5As shown, a sleeve hole is provided in the center of the traveling wheel 21, and a limiting groove 211 is provided on the inner side of the sleeve hole to cooperate with the limiting rib 231. The limiting groove 211 is used to accommodate the limiting rib 231 on the rotating shaft 23, so that the traveling wheel 21 can achieve reliable rotational positioning when it is installed on the rotating shaft 23. Through the geometric cooperation structure between the limiting rib 231 and the limiting groove 211, the linkage accuracy between the rotating shaft 23 and the traveling wheel 21 is effectively improved, providing structural guarantee for the bogie gauge adjustment.

[0032] like Figure 5 As shown, the outer surface of the connecting rod 22 has multiple locking grooves 221 evenly arranged from left to right. The width of the locking grooves 221 is the same as the diameter of the pin 241. When the pin 241 is inserted into the locking grooves 221 at different positions, the left and right movement distance of the traveling wheel 21 can be finely adjusted, thereby precisely adjusting the track gauge between the left and right traveling wheels 21. By setting multiple locking grooves 221, the track gauge adjustment has a multi-position function, which improves the flexibility and adaptability of the track gauge adjustment and avoids the problems of narrow adjustment range and unreliable adjustment mechanism of traditional track gauge adjustment structures.

[0033] The working principle of this utility model is as follows: When adjusting the track gauge of the bogie body 1, the locking screw 24 on the connecting block 25 is loosened. At this time, the position of the traveling wheel 21 is adjusted in the left and right directions. After the track gauge between the two traveling wheels 21 is adjusted, the locking screw 24 is tightened again so that the pin 241 is inserted into the inner side of the locking groove 221, thereby locking and fixing the connecting rod 22, thus completing the fixation of the position of the traveling wheel 21, and thus completing the adjustment of the track gauge between the two traveling wheels 21.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A bogie with adjustable track gauge, comprising a bogie body (1), characterized in that: The bogie body (1) is equipped with a traveling mechanism (2) on both the front and rear sides. The traveling mechanism (2) includes a rotating shaft (23) rotatably mounted on the bogie body (1). Two traveling wheels (21) are mounted on the rotating shaft (23). The traveling wheels (21) and the rotating shaft (23) rotate synchronously. Several connecting rods (22) are fixed on opposite sides of the two walking wheels (21). Two circular connecting blocks (25) are fixed on the shaft (23) located between the two walking wheels (21). The connecting rods (22) pass through the connecting blocks (25). The circumferential surface of the connecting blocks (25) is threaded with locking screws (24) to lock the connecting rods (22).

2. The adjustable gauge bogie according to claim 1, characterized in that: Both ends of the rotating shaft (23) are fixed with stepped shafts (232), and multiple transversely arranged limiting ribs (231) are fixed on the outer surface of the rotating shaft (23).

3. The adjustable gauge bogie according to claim 2, characterized in that: The connecting block (25) has several through guide holes (252) on its side and threaded holes (251) on its circumferential surface.

4. The adjustable gauge bogie according to claim 3, characterized in that: The locking screw (24) is threaded into the threaded hole (251), and the end of the locking screw (24) is fixed with a pin (241) extending into the guide hole (252).

5. A bogie with adjustable track gauge according to claim 4, characterized in that: The center of the walking wheel (21) is provided with a sleeve hole, and the inner side of the sleeve hole is provided with a limiting groove (211) that cooperates with the limiting rib (231).

6. The adjustable gauge bogie according to claim 4, characterized in that: The outer surface of the connecting rod (22) is provided with a plurality of locking grooves (221) evenly arranged from left to right, and the width of the locking grooves (221) is the same as the diameter of the pin (241).

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