Rail bogie supporting structure

Abstract

The utility model relates to the field of rail transportation equipment, and discloses a rail bogie supporting structure which comprises a bogie body, a damping assembly, a rotating shaft, idler wheels, a moving seat, a gear mechanism and a synchronous braking mechanism. The sliding groove is formed in the bogie body, the movable seats are symmetrically installed in the sliding groove in a sliding mode, and the movable seats are meshed with the center gear through the toothed bars, so that symmetrical adjustment during load butt joint is achieved, and it is guaranteed that the gravity center is centered; a supporting table and a fixed seat are arranged at the top of the movable seat to adapt to different forms of bearing objects; the rollers are connected with the bogie body through the damping assemblies, so that the running stability is improved; a synchronous braking mechanism is arranged in the bogie body and comprises a cross beam, a rail rod, a sliding block, a spring, a control screw rod and a positioning bolt, the sliding block is driven to be linked by rotating the control screw rod, synchronous locking of the two idler wheels is achieved, operation deviation is prevented, and using stability and universality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of track bogie technology, and specifically relates to a track bogie support structure. Background Technology

[0002] As a key load-bearing component in rail transportation equipment, the structural design of the bogie directly affects the safety and adaptability of vehicle operation. In existing technologies, the bogie support structure of rail vehicles is usually a fixed structure, meaning that the bogie body is connected to the load-bearing structure through pre-set connection positions. Although this structure can meet the requirements of some working conditions, it often suffers from poor versatility and low installation efficiency when connecting load equipment of different models and with different center of gravity distributions. Especially when the width of the load varies greatly or the center of gravity shifts, the existing support structure is difficult to adjust symmetrically, which can easily lead to uneven stress on the bogie and decreased operational stability.

[0003] Furthermore, to ensure the safety of the bogies during docking or operation, some devices are equipped with braking or positioning mechanisms. However, traditional braking structures are mostly single-point braking or positioning via manual wedges, which are complex to operate and result in uneven braking. Once one side of the rollers slips, it not only affects the smoothness of the equipment's operation but also poses a safety hazard. Therefore, there is currently a lack of a track bogie support structure that can maintain symmetry throughout the adjustment process and has synchronous braking capabilities. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a track bogie support structure that can achieve adjustable structure, symmetrical linkage, and synchronous braking capability, thereby improving the versatility and stability of the equipment under different load conditions and solving the problems of poor versatility and unstable braking in the prior art.

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

[0006] A track bogie support structure includes a bogie body. Shock-absorbing components are symmetrically arranged below the ends of the bogie body. Connecting plates are installed at the bottom of the shock-absorbing components. A rotating shaft is rotatably installed between two connecting plates on the same side. Rollers are symmetrically fixed at both ends of the rotating shaft surface. A transverse groove is formed at the center of the upper surface of the bogie body. Two rows of positioning threaded holes are evenly formed on the surface of the bogie body, respectively located on both sides of the groove. A gear is rotatably installed at the center of the groove. Moving seats are symmetrically slidably installed inside the groove. A rack is fixed on one side of the two moving seats that are close to each other, and the two racks mesh with the sides of the gear. Extension plates are symmetrically arranged on both sides of the top of the moving seats. The extension plates are respectively positioned above the two rows of positioning threaded holes. Bolts adapted to the positioning threaded holes penetrate the surface of the extension plates. A support platform is fixed to the top of the moving seats. A fixed seat is provided on the upper surface of the support platform. A brake disc is fixed to the inner side of the roller. Positioning holes are evenly formed on the surface of the brake disc with the rotating shaft axis as the center. A synchronous braking mechanism is also provided at one end of the bogie body.

[0007] Furthermore, the synchronous braking mechanism includes a crossbeam spanning the upper part of the bogie body, the crossbeam being positioned directly above the pivot shaft, and upright plates symmetrically arranged on the lower surface of the crossbeam, with two track rods fixed between the two upright plates.

[0008] Furthermore, sliders are symmetrically slidably mounted on the surfaces of the two track rods, and a support plate is provided at the bottom of the slider. A positioning bolt is fixed at one end of the support plate that is opposite to each other, and the end of the positioning bolt is adapted to the internal size of the corresponding positioning hole.

[0009] Furthermore, springs are symmetrically fitted at both ends of the track rod surface, and the springs are placed between the slider and the vertical plate, and the springs apply a force to the slider in the central direction.

[0010] Furthermore, an extrusion inclined plate is fixed on one side of the two sliders that are close to each other, and a control screw is horizontally rotatably installed at the center of the lower surface of the crossbeam. The control screw is set perpendicular to the track rod, and a moving block is screwed onto the surface of the control screw.

[0011] Furthermore, the movable block is symmetrically fixed with extrusion fixing rods on both sides, and the ends of the extrusion fixing rods are in contact with the inclined surface of the extrusion inclined plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features a sliding groove on the bogie body, within which symmetrically sliding seats are mounted. A rack is connected to the bottom of each sliding seat, meshing with a gear mounted at the center of the groove. Rotating the gear ensures that the two sliding seats maintain symmetrical positional changes. This structure effectively solves the problem of existing bogies being unable to achieve symmetrical adjustment when docking loads of different sizes, preventing instability caused by load center of gravity shift. Simultaneously, the extension plate is bolted to the positioning threaded hole, improving the positioning reliability of the sliding seats and enhancing the structure's versatility and adaptability, making it suitable for various types of load docking requirements.

[0014] By installing shock-absorbing components under the bogie body and combining them with the shaft and roller structure via connecting plates, the equipment achieves buffering and vibration absorption functions during track operation. The shock-absorbing components effectively absorb the impact force during travel, improving the stability of equipment operation and overall lifespan. The rollers at both ends of the shaft can make smooth contact with the track, maintaining good rolling performance under load conditions, further enhancing the load capacity and operational stability of the bogie support structure, and meeting the actual track operation requirements.

[0015] This invention achieves synchronous locking of two rollers by incorporating a synchronous braking mechanism inside the bogie body, including a crossbeam, vertical plate, track rod, slider, spring, control screw, and positioning structure. Specifically, a positioning bolt is installed on the slider, and a spring provides a restoring force. When the control screw rotates, it pushes the compression plate through a pressing rod to unfold the slider, thereby inserting the positioning bolt into the positioning hole on the roller brake disc. This structure solves the problems of unilateral slippage and inconsistent braking in traditional bogie braking mechanisms, achieving synchronous braking on both sides. This effectively prevents structural tilting and equipment instability caused by unilateral slippage during operation, improving safety and operational efficiency.

[0016] By setting up a mechanical linkage between the control screw and the sliding control mechanism, the entire braking process can be completed simply by rotating the screw, eliminating the need for cumbersome operations and effectively improving the convenience and reliability of braking operations. At the same time, since the control screw controls the symmetrical movement of the two sliders through symmetrical pressure plates, the consistency of the braking action is maintained, achieving precise control and synchronous response, thus improving the practicality and reliability of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the support platform and toothed rod installation structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the right-side structure for the installation of the crossbeam of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the crossbeam installation of this utility model;

[0021] Figure 5 This is a schematic diagram of the beam-style structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the slider and moving block installation structure of this utility model.

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

[0024] 1. Bogie body; 101. Slide groove; 102. Positioning threaded hole; 2. Shock absorber assembly; 3. Connecting plate; 4. Shaft; 5. Roller; 6. Gear; 7. Moving seat; 71. Extension plate; 8. Support platform; 9. Fixed seat; 10. Rack; 11. Brake disc; 12. Positioning hole; 13. Crossbeam; 14. Vertical plate; 15. Track rod; 16. Slider; 161. Support plate; 162. Positioning bolt; 163. Extrusion inclined plate; 17. Spring; 18. Control screw; 19. Moving block; 191. Extrusion fixing rod. 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. Example

[0026] refer to Figures 1-6As shown, a track bogie support structure includes a bogie body 1, with shock-absorbing components 2 symmetrically arranged below the ends of the bogie body 1. The shock-absorbing components 2 include an outer shell and internal elastic elements, used to absorb vibrations of the bogie body 1 during track operation, improving structural stability and service life. A connecting plate 3 is installed at the bottom of the shock-absorbing components 2, and the connecting plate 3 is fixedly connected to the shock-absorbing components 2 by bolts to achieve stable load-bearing for the structure below. A rotating shaft 4 is rotatably installed between the two connecting plates 3 on the same side. The middle part of the rotating shaft 4 cooperates with the connecting plate 3 through a bearing assembly to ensure smooth rotation and durability. Rollers 5 are symmetrically fixed at both ends of the rotating shaft 4, and the rollers 5 are connected to the rotating shaft 4 through bushings, enabling them to roll on the track, providing support for the entire rotating structure. The bogie body 1 provides mobility and bears longitudinal loads. A transverse groove 101 is provided at the center of the upper surface of the bogie body 1. The groove 101 restricts the transverse movement path of the moving parts to guide the structural adjustment function. Two rows of positioning threaded holes 102 are evenly distributed on the surface of the bogie body 1, located on both sides of the groove 101, serving as fixed mounting points for the support structure and meeting the installation requirements of objects of different widths. A gear 6 is rotatably mounted at the center of the groove 101. The gear 6 is connected to the bogie body 1 via a central shaft and can be rotated by an external knob to link the internal structure of the groove. A movable seat 7 is symmetrically slidably mounted inside the groove 101, with its bottom slidingly engaging with the groove 101. The two movable seats 7 are symmetrically adjusted under the drive of gear 6 to adapt to loads of different widths. A rack 10 is fixed to one side of each other, meshing with both sides of gear 6 to form a symmetrical linkage structure, ensuring the movable seats 7 maintain symmetry during adjustment and preventing center of gravity shift. Extension plates 71 are symmetrically arranged on both sides of the top of the movable seats 7, positioned above two rows of positioning threaded holes 102 to expand the fixing range and connection strength. Bolts matching the positioning threaded holes 102 penetrate the surface of the extension plates 71, and tightening these bolts fixes the movable seats 7 to a preset position in the slide groove 101, improving connection stability and load-bearing adaptability. A support platform 8 is fixed to the top of the movable seats 7. The bottom structure of the support platform 8 is a direct platform for bearing loads. A fixed seat 9 is provided on the upper surface of the support platform 8. The fixed seat 9 is provided with threaded holes or positioning pins to meet the installation requirements of different structural loads. A brake disc 11 is fixed on the inner side of the roller 5. The brake disc 11 is used to cooperate with the braking device to achieve the locking function when the vehicle is stopped, preventing the bogie from sliding when stationary. Positioning holes 12 are evenly opened on the surface of the brake disc 11 with the axis of the rotating shaft 4 as the center. The positioning holes 12 cooperate with the subsequent synchronous braking mechanism to position the roller 5 and improve the stability of the whole vehicle. A synchronous braking mechanism is also provided at one end of the bogie body 1 to synchronously brake the two rollers 5 during docking or stopping, preventing unilateral sliding and structural tilting.

[0027] refer to Figures 3-6 As shown, the synchronous braking mechanism includes a crossbeam 13 spanning the upper part of the bogie body 1. The crossbeam 13 is made of high-strength alloy material and is used to provide rigid support for the entire braking structure. The crossbeam 13 is positioned directly above the pivot 4 and is fixedly connected to the top structure of the bogie body 1 to ensure overall coordination. Vertical plates 14 are symmetrically arranged on the lower surface of the crossbeam 13. The vertical plates 14 are fixed vertically on the crossbeam 13 and are used to provide mounting points for the track rods 15 and to constrain and guide the slider 16 during braking. Two track rods 15 are fixed between the two vertical plates 14. The track rods 15 are long strip structures with their two ends fixed to the vertical plates 14 respectively. They are used to guide the slider 16 to slide laterally and provide the mounting reference for the spring 17.

[0028] refer to Figure 5 and Figure 6 As shown, sliders 16 are symmetrically slidably mounted on the surfaces of two track rods 15. The sliders 16 cooperate with the track rods 15 through a groove structure and can reciprocate laterally along the track rods 15 to drive the positioning bolts 162 to insert into or disengage from the positioning holes 12. A support plate 161 is provided at the bottom of the sliders 16. The support plate 161 is a laterally extending structure and is integrally cast with the sliders 16 to enhance structural rigidity and serve as the mounting base for the positioning bolts 162. The positioning bolts 162 are fixed at opposite ends of the support plates 161. The positioning bolts 162 are made of hard steel and have a guide cone at their ends, which can be smoothly inserted into the positioning holes 12 to achieve mechanical locking of the rollers 5. The ends of the positioning bolts 162 are adapted to the internal dimensions of the corresponding positioning holes 12, with a fitting gap of less than 0.1 mm, to achieve precise locking and improve braking reliability.

[0029] refer to Figure 5 As shown, springs 17 are symmetrically fitted at both ends of the surface of the track rod 15. One end of the spring 17 presses against the slider 16 and the other end presses against the vertical plate 14. It is used to push the slider 16 back to the center when the control force is released, so as to ensure that the positioning bolt 162 automatically exits the positioning hole 12 in the non-pressed state. The elastic force parameter of the spring 17 is set according to the usage environment so as to overcome the sliding friction of the roller 5 without affecting the sensitivity of the slider 16.

[0030] refer to Figure 6As shown, a pressing inclined plate 163 is fixed on one side of the two sliders 16 that are close to each other. The pressing inclined plate 163 is V-shaped, and its inclined surface faces the moving block 19 of the control screw 18. It is used to push the two sliders 16 to separate to both sides when pressed, so as to realize the synchronous insertion of the positioning bolt 162. The control screw 18 is horizontally rotatably installed at the center of the lower surface of the crossbeam 13. The control screw 18 is fixed to the crossbeam 13 through a threaded hole and is connected to an external knob for manual operation. The control screw 18 is set perpendicular to the track rod 15 and is used to push the moving block 19 to move laterally along the axial direction to realize the mechanical control force output. The moving block 19 is screwed onto the surface of the control screw 18. The moving block 19 and the control screw 18 are tightly connected through an internal thread linkage structure. When the control screw 18 is rotated, the moving block 19 can reciprocate along the direction of the track rod 15.

[0031] refer to Figure 6 As shown, the moving block 19 is symmetrically fixed with pressing and fixing rods 191 on both sides. The pressing and fixing rods 191 and the moving block 19 are integral structures and are set at the ends of the moving block 19 on both sides in the lateral direction. The ends of the pressing and fixing rods 191 are in contact with the inclined surface of the pressing inclined plate 163. During the lateral movement of the moving block 19, the pressing and fixing rods 191 push the inclined plate 163 to unfold to both sides, so that the two sliders 16 slide synchronously to achieve the precise docking of the positioning bolt 162 and the positioning hole 12, thereby completing the synchronous braking and positioning of the roller 5.

[0032] The working principle of this utility model is as follows: When in use, the bogie body 1 is placed above the track, and the roller 5 is in contact with the track. The positioning positions of the two moving seats 7 can be flexibly adjusted according to the size of the load. The meshing of the rack 10 and the gear 6 ensures that the two moving seats 7 remain symmetrical during the adjustment process, so that the center of gravity is placed at the center of the bogie body 1 after docking with the load. Then, the bolts on the surface of the extension plate 71 are engaged with the corresponding positioning threaded holes 102 to keep it fixed, thereby adjusting the distance of the support structure to improve the versatility during docking.

[0033] During docking, it is necessary to maintain the stability of the bogie body 1. At this time, the knob at the end of the control screw 18 can be rotated to make the control screw 18 rotate, thereby controlling the moving block 19 to move backward. This causes the pressing rod 191 to press the pressing inclined plate 163, increasing the distance between the two sliders 16. At this time, the positioning bolt 162 can cooperate with the corresponding positioning hole 12 to maintain the stability of the roller 5. This synchronous braking mechanism can simultaneously fix the two rollers 5, thereby improving the braking effect and preventing the single-sided roller 5 from slipping. If it is necessary to release the brake, the control screw 18 can be rotated in the opposite direction to make the moving block 19 move forward and stop pressing the positioning bolt 162. At this time, due to the elastic force of the spring 17, the slider 16 moves towards the center to contact the brake.

[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 track bogie support structure, comprising a bogie body (1), characterized in that: A shock-absorbing assembly (2) is symmetrically arranged below the end of the bogie body (1). A connecting plate (3) is installed at the bottom of the shock-absorbing assembly (2). A rotating shaft (4) is rotatably installed between the two connecting plates (3) on the same side. Rollers (5) are symmetrically fixed at both ends of the rotating shaft (4). A sliding groove (101) is transversely opened at the center of the upper surface of the bogie body (1). Two rows of positioning threaded holes (102) are evenly opened on the surface of the bogie body (1). The two rows of positioning threaded holes (102) are respectively placed on both sides of the sliding groove (101). A gear (6) is rotatably installed at the center of the sliding groove (101). A movable seat (7) is symmetrically slidably installed inside the sliding groove (101). The two movable seats (7) are close to each other. A rack (10) is fixed on one side, and the two racks (10) mesh with the two sides of the gear (6) respectively. An extension plate (71) is symmetrically arranged on both sides of the top of the moving seat (7). The extension plates (71) on both sides are respectively placed above two rows of positioning threaded holes (102). Bolts that are compatible with the positioning threaded holes (102) are passed through the surface of the extension plate (71). A support platform (8) is fixed on the top of the moving seat (7). A fixed seat (9) is provided on the upper surface of the support platform (8). A brake disc (11) is fixed on the inner side of the roller (5). Positioning holes (12) are evenly opened on the surface of the brake disc (11) with the axis of the rotating shaft (4) as the center. A synchronous braking mechanism is also provided at one end of the bogie body (1).

2. The track bogie support structure according to claim 1, characterized in that: The synchronous braking mechanism includes a crossbeam (13) spanning the upper part of the bogie body (1), the crossbeam (13) being positioned directly above the rotating shaft (4), and upright plates (14) symmetrically arranged on the lower surface of the crossbeam (13), with two track rods (15) fixed between the two upright plates (14).

3. The track bogie support structure according to claim 2, characterized in that: Two track rods (15) are symmetrically mounted with sliders (16). A support plate (161) is provided at the bottom of the slider (16). A positioning bolt (162) is fixed at one end of the support plate (161) that is opposite to each other. The end of the positioning bolt (162) is adapted to the internal size of the corresponding positioning hole (12).

4. The track bogie support structure according to claim 3, characterized in that: Springs (17) are symmetrically sleeved at both ends of the surface of the track rod (15). The springs (17) are placed between the slider (16) and the upright plate (14). The springs (17) apply a force to the slider (16) in the center direction.

5. A track bogie support structure according to claim 4, characterized in that: An extrusion plate (163) is fixed on one side of the two sliders (16) that are close to each other. A control screw (18) is installed laterally at the center of the lower surface of the crossbeam (13). The control screw (18) is set perpendicular to the track rod (15). A moving block (19) is screwed onto the surface of the control screw (18).

6. A track bogie support structure according to claim 5, characterized in that: The moving block (19) is symmetrically fixed with compression fixing rods (191) on both sides, and the ends of the compression fixing rods (191) are in contact with the inclined surface of the compression inclined plate (163).

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