Three-section type slope-crossing vehicle body structure

Abstract

The utility model provides a three-section type slope-crossing vehicle body structure, and aims to solve the problem that a low rail vehicle in the prior art cannot pass or is hindered under the working conditions of uphill and downhill. The vehicle mainly comprises a vehicle frame body, a plurality of wheel sets arranged below the vehicle frame body and a driving assembly arranged on the vehicle frame body and used for driving the wheel sets, the vehicle frame body comprises a front vehicle frame, a middle vehicle frame and a rear vehicle frame, and the adjacent sides of the front vehicle frame and the middle vehicle frame are rotatably connected. One side, adjacent to the rear frame, of the middle frame is rotatably connected; according to the utility model, a three-section type frame structure is adopted, during running, the double-side slope prevention driven wheel sets corresponding to the front frame and the rear frame firstly make contact with the bottom surface of a flat plate and the inclined surface of a slope rail during uphill, and during downhill, one of the two sides can make contact with the ground in time due to gravity, so that smooth transition is ensured, and therefore, the double-side slope prevention driven wheel sets greatly adapt to the working condition of a site with a slope.

Description

Technical Field

[0001] This utility model relates to the field of RGV railcar technology, and in particular to a three-section ramp-crossing car body structure. Background Technology

[0002] In the logistics and warehousing system, RGV railcars are needed to transfer products within the yard. Since they mostly travel on straight or slightly narrow tracks, the existing RGV chassis are particularly low, and the wheel sets are mostly located off-center from the vehicle body. Therefore, they are obstructed in some uphill and downhill conditions, making it impossible for the transfer work within the yard to proceed downwards. Utility Model Content

[0003] This application addresses the shortcomings of the prior art by providing a three-section ramp-crossing vehicle body structure. While maintaining the low-profile body characteristics, it adopts a three-section frame structure, with adjacent frames connected by hinge supports, hinge heads, and pivots to achieve rotational connection between the two frames; thus, it can greatly adapt to sloped terrain conditions.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A three-section ramp-crossing vehicle body structure includes a frame body, multiple wheel sets disposed below the frame body, and a drive assembly disposed on the frame body for driving the wheel sets. The frame body includes a front frame, a middle frame, and a rear frame. The front frame and the middle frame are rotatably connected on an adjacent side, and the middle frame is rotatably connected on an adjacent side relative to the rear frame.

[0006] Furthermore, the rotating parts of the front frame, middle frame, and rear frame are rotatably connected by two sets of symmetrical rotating components. Each set of rotating components includes a hinge support on the middle frame and a hinge head on the adjacent frame. The hinge head and the hinge support are rotatably connected by a rotating shaft.

[0007] Furthermore, both the front frame and the rear frame are provided with two sets of driven wheel sets, and both ends of the middle frame are provided with two sets of wheel sets. One set of wheel sets in the middle frame is a driven wheel set, and the other set is a driving wheel set. The driving wheel sets transmit torque between each other through a coupling and a drive shaft.

[0008] Furthermore, the drive assembly includes a motor mount mounted on the hull frame, a servo motor fixedly mounted on the motor mount, a drive sprocket mounted on the drive end of the servo motor, a driven sprocket mounted on the transmission shaft, and a chain drive between the drive sprocket and the driven sprocket.

[0009] The beneficial effects of this utility model are as follows:

[0010] Compared to existing technologies, and unlike traditional long-wheelbase, straight-plate railcars, the railcar structure provided by this invention maintains a low-profile body while employing a three-section frame structure. Wheelsets are evenly distributed on each frame, ensuring that each frame can meet load requirements. Adjacent frames are connected by hinge supports, hinge heads, and axles. The centrally located drive system concentrates the active wheelsets and drive components at the relative center of the frame to maintain the balance of the vehicle. When the vehicle is in motion, the dual-sided anti-slope driven wheel sets corresponding to the front and rear frames first contact the inclined surface of the flatbed rail when going uphill, and when going downhill, due to gravity, one side can touch the ground in time, ensuring a smooth transition. Therefore, it is highly adaptable to sloping terrain conditions. Attached Figure Description

[0011] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a schematic diagram of the rotating assembly in this utility model;

[0013] Figure 3 This is a second-view three-dimensional structural diagram of the present invention;

[0014] Figure 4 This is a schematic diagram showing the state of the present invention when traveling on uphill and downhill slopes.

[0015] The components include: 1. Main frame; 11. Front frame; 12. Middle frame; 13. Rear frame; 14. Driven wheel assembly; 15. Drive wheel assembly; 16. Coupling; 17. Drive shaft;

[0016] 2. Drive assembly; 21. Motor mount; 22. Servo motor; 23. Driven sprocket; 24. Drive sprocket;

[0017] 3. Rotating assembly; 31. Hinge support; 32. Hinge head; 33. Rotating shaft. Detailed Implementation

[0018] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0019] This utility model provides a three-section hill-climbing vehicle body structure, which includes a frame body 1, multiple wheel sets disposed below the frame body 1, and a drive assembly 2 disposed on the frame body 1 for driving the wheel sets. The frame body 1 includes a front frame 11, a middle frame 12, and a rear frame 13. The front frame 11 is rotatably connected to the middle frame 12 on an adjacent side, and the middle frame 12 is rotatably connected to the rear frame 13 on an adjacent side.

[0020] like Figures 1 to 4As shown, in one embodiment of this utility model, the rotating parts of the front frame 11, the middle frame 12 and the rear frame 13 are rotatably connected by two sets of symmetrical rotating components 3. Each set of rotating components 3 includes a hinge support 31 on the middle frame 12 and a hinge head 32 on the adjacent frame. The hinge head 32 and the hinge support 31 are rotatably connected by a rotating shaft 33.

[0021] In one embodiment of this utility model, both the front frame 11 and the rear frame 13 are provided with two sets of driven wheel sets 14, and both ends of the middle frame 12 are provided with two sets of wheel sets. One set of wheel sets in the middle frame 12 is a driven wheel set 14, and the other set is a driving wheel set 15. The driving wheel sets 15 transmit torque between each other through a coupling 16 and a drive shaft 17.

[0022] In one embodiment of this utility model, the drive assembly 2 includes a motor mount 21 mounted on the frame of the trolley frame 12. A servo motor 22 is fixed on the motor mount 21. The drive end of the servo motor 22 is provided with a drive sprocket 24. A driven sprocket 23 is provided on the transmission shaft 17. The drive sprocket 24 and the driven sprocket 23 are driven by a chain.

[0023] The specific structure and working principle of this utility model are as follows:

[0024] The railcar body structure provided by this utility model mainly includes a front frame 11, a middle frame 12, and a rear frame 13. Two sets of driven wheel sets 14 are installed on the front frame 11 and the rear frame 13 respectively for double-sided slope protection. A set of driven wheel sets 14 and a set of driving wheel sets 15 are provided on the middle frame 12. At the same time, a servo motor 22 is also installed on the frame of the middle frame 12. The servo motor 22 transmits torque to the driving wheel set 15 through a sprocket and chain. When the railcar structure is running, the double-sided slope protection driven wheel sets 14 corresponding to the front and rear frames 13 first contact the bottom surface of the flat plate and the inclined surface of the sloping rail when going uphill. When going downhill, due to gravity, one side of the two sides can touch the ground in time, ensuring a smooth transition. Therefore, it is greatly adapted to the working conditions of sloping sites.

[0025] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A three-section ramp-crossing vehicle body structure, characterized in that: The vehicle includes a frame body (1), multiple wheel sets disposed below the frame body (1), and a drive assembly (2) disposed on the frame body (1) for driving the wheel sets. The frame body (1) includes a front frame (11), a middle frame (12), and a rear frame (13). The front frame (11) is rotatably connected to the middle frame (12) on one side adjacent to it, and the middle frame (12) is rotatably connected to the side adjacent to the rear frame (13).

2. The three-section ramp-crossing vehicle body structure as described in claim 1, characterized in that: The front frame (11), the middle frame (12) and the rear frame (13) are rotatably connected by two sets of symmetrical rotating components (3). Each set of rotating components (3) includes a hinge support (31) on the middle frame (12) and a hinge head (32) on the adjacent frame. The hinge head (32) and the hinge support (31) are rotatably connected by a rotating shaft (33).

3. The three-section ramp-crossing vehicle body structure as described in claim 1, characterized in that: The front frame (11) and the rear frame (13) are each provided with two sets of driven wheel sets (14). The two ends of the middle frame (12) are each provided with two sets of wheel sets. One set of wheel sets in the middle frame (12) is a driven wheel set (14), and the other set is a driving wheel set (15). The driving wheel sets (15) transmit torque between each other through a coupling (16) and a drive shaft (17).

4. The three-section ramp-crossing vehicle body structure as described in claim 3, characterized in that: The drive assembly (2) includes a motor mount (21) mounted on the frame of the trolley frame (12), a servo motor (22) fixed on the motor mount (21), a drive sprocket (24) on the drive end of the servo motor (22), a driven sprocket (23) on the transmission shaft (17), and the drive sprocket (24) and the driven sprocket (23) are driven by a chain.

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