Driving and steering device for heavy omnidirectional flat car
By coordinating the design of the steering and drive components, the problems of insufficient steering accuracy and drive efficiency of the steering device for heavy-duty flatcars have been solved, enabling omnidirectional driving and stable docking, and improving operational flexibility and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU TIMES POWER TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-09-28
- Publication Date
- 2026-07-28
AI Technical Summary
Traditional heavy equipment flatcars lack specialized steering and drive structures, resulting in insufficient steering accuracy, drive efficiency, and load-bearing stability. They are also cumbersome to operate and lack flexibility in narrow spaces or complex environments.
It adopts a collaborative design of steering and drive components, including connecting shafts, wheels, support shafts, electric push rods, drive motors, bevel gears, etc. Precise steering and efficient power transmission are achieved through gear transmission and linkage mechanism, and the support module provides stable support and buffer function.
It enables omnidirectional flexible driving and stable parking of heavy-duty flatcars, improves steering precision and drive efficiency, and enhances operational flexibility and safety in complex environments.
Smart Images
Figure CN224562593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of heavy transportation and material handling equipment, specifically a drive and steering device for a heavy-duty omnidirectional flatcar. Background Technology
[0002] In the field of heavy equipment handling and industrial logistics, traditional flatcars typically employ a fixed-axle wheel system design, which can only achieve unidirectional or limited-angle steering, resulting in insufficient flexibility in confined spaces or complex operating environments. Steering adjustments often require multiple reversing maneuvers or manual assistance, making the operation cumbersome and inefficient.
[0003] A search revealed existing technology (application number: CN222474248U), which describes "an electric flatcar steering device." This utility model utilizes a main universal joint, four-sided electric push rods, and an auxiliary universal joint within the flatcar body, along with an adjustment frame on the surface. A gyroscope within the adjustment frame senses balance, driving the drive unit and drive wheels to complete steering. Simultaneously, a reset rubber sleeve assists in resetting the adjustment frame.
[0004] However, the device lacks a dedicated steering and drive structure, and its steering accuracy, drive efficiency, and load-bearing stability are all insufficient. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drive and steering device for a heavy-duty omnidirectional flatcar.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a drive and steering device for a heavy-duty omnidirectional flatcar, comprising: a flatcar body with a base plate welded to its bottom; a steering assembly including a connecting shaft, a first wheel, and a support shaft, wherein the connecting shaft is disposed at the bottom of the flatcar body, the first wheel is rotatably connected to the connecting shaft, the top end of the support shaft is welded to both ends on one side of the bottom of the flatcar body, the support shaft is rotatably connected to the connecting shaft, and the bottom end of the support shaft passes through the connecting shaft and is locked by a nut; and a drive assembly including a rotating shaft and a second wheel, wherein both ends of the rotating shaft are rotatably connected to the base plate, the rotating shaft is located on the side away from the steering assembly, and the second wheel is fixedly connected to the rotating shaft.
[0007] As a further description of the above technical solution:
[0008] The steering assembly also includes: a slide rail 1, which is bolted to the bottom of the flatcar body; an electric push rod 1, one end of which is welded with a mounting plate, the mounting plate being bolted to a slider, and the slider being slidably connected to the slide rail 1.
[0009] As a further description of the above technical solution:
[0010] The steering assembly further includes: a first connecting rod, the top end of which is bolted to the output shaft of an electric push rod; a second connecting rod, which is rotatably connected to the bottom end of the first connecting rod; and a third connecting rod, located at both ends of the second connecting rod, both of which are rotatably connected to the second connecting rod and welded to the connecting shaft.
[0011] As a further description of the above technical solution:
[0012] The drive assembly also includes: a second slide rail, which is bolted to the bottom of the flatcar body; and a drive motor with a sliding plate bolted to its top, the sliding plate being slidably connected to the second slide rail.
[0013] As a further description of the above technical solution:
[0014] The drive assembly further includes: a first bevel gear, which is fixedly connected to the output shaft of the drive motor; and a second bevel gear, which is fixedly connected to the rotating shaft and meshes with the first bevel gear.
[0015] As a further description of the above technical solution:
[0016] The bottom of the flatcar body is also provided with a support module, which includes: an electric push rod II, which is bolted to the bottom of the flatcar body and the output shaft is bolted to the drive motor; a bevel gear III, which has a mounting shaft fixedly connected to its middle part, and the mounting shaft is fixedly connected to the flatcar body through a support plate. The mounting shaft is rotatably connected to the support plate and meshes with the bevel gear I; and a flat gear, which is fixedly connected to the other end of the mounting shaft.
[0017] As a further description of the above technical solution:
[0018] The support module further includes: a rack, which is disposed on one side of the flat gear and meshes with the flat gear; a support block, whose side wall is welded to the rack and whose bottom is attached with an anti-slip pad; and multiple telescopic rods, which are respectively welded to the bottom of the flatcar body and the support block at both ends, and have springs installed inside.
[0019] This utility model has the following beneficial effects:
[0020] One of the core technological advantages is the ability to enable omnidirectional flexible movement of heavy-duty flatcars. Through the collaboration of the steering and drive components, the steering mechanism can precisely adjust the wheel direction, while the drive mechanism efficiently transmits power via gear transmission. This allows the flatcar to move in multiple directions without frequent adjustments to its body, meeting the demand for maneuverability during the transfer of heavy goods.
[0021] Another core technological advantage is ensuring the stability of the flatcar during travel and parking. The support module can adjust the power transmission state in conjunction with the drive components during unloading, and when parked, it drives the support block to contact the ground through gear and rack transmission. Combined with the buffering effect of the telescopic rod and spring, it enhances the flatcar's adaptability to the ground, avoids displacement or tilting under heavy loads, and improves operational safety. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the structure of the flatcar body flipping according to this utility model;
[0024] Figure 3 This is a schematic diagram of the steering assembly of this utility model;
[0025] Figure 4 This is a structural schematic diagram of the support module of this utility model.
[0026] Legend:
[0027] 1. Flatbed car body; 11. Base plate; 2. Steering assembly; 21. Slide rail one; 22. Electric push rod one; 23. Connecting rod one; 24. Connecting rod two; 25. Connecting rod three; 26. Connecting shaft; 27. Wheel one; 28. Support shaft; 3. Drive assembly; 31. Slide rail two; 32. Drive motor; 33. Bevel gear one; 34. Bevel gear two; 35. Rotating shaft; 36. Wheel two; 38. Support module; 381. Electric push rod two; 382. Bevel gear three; 383. Flat gear; 384. Rack; 385. Support block; 386. Telescopic rod. Detailed Implementation
[0028] 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.
[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Example 1:
[0032] like Figures 1 to 4 As shown, this embodiment provides a drive and steering device for a heavy-duty omnidirectional flatcar, comprising: a flatcar body 1 with a base plate 11 welded to its bottom; a steering assembly 2, comprising a connecting shaft 26, a first wheel 27, and a support shaft 28, wherein the connecting shaft 26 is disposed at the bottom of the flatcar body 1, the first wheel 27 is rotatably connected to the connecting shaft 26, the top end of the support shaft 28 is welded to both ends of one side of the bottom of the flatcar body 1, the support shaft 28 is rotatably connected to the connecting shaft 26, and the bottom end of the support shaft 28 passes through the connecting shaft 26 and is locked with a nut; and a drive assembly 3, comprising a rotating shaft 35 and a second wheel 36, wherein both ends of the rotating shaft 35 are rotatably connected to the base plate 11, the rotating shaft 35 is located on the side away from the steering assembly 2, and the second wheel 36 is fixedly connected to the rotating shaft 35.
[0033] The diameter of the portion of the support shaft 28 located on the upper side of the connecting shaft 26 is larger than the diameter of the portion on the lower side, and the bottom of the larger portion on the upper side is in close contact with the upper side of the connecting shaft 26.
[0034] In this embodiment, the flatcar body 1, the steering component 2, and the drive component 3 constitute the drive and steering device of a heavy-duty omnidirectional flatcar according to this application.
[0035] Understandable, Figure 1 The diagram only schematically illustrates some of the components included in the heavy-duty omnidirectional flatcar; the actual shape, size, location, and construction of these components are not subject to change. Figure 1 The limitations mean that heavy-duty omnidirectional flatcars can also include those compared to... Figure 1 More or fewer parts.
[0036] Example 2:
[0037] Specifically, the steering assembly 2 also includes: a slide rail 21, which is bolted to the bottom of the flatcar body 1; an electric push rod 22, one end of which is welded with a mounting plate, the mounting plate being bolted to a slider, and the slider being slidably connected to the slide rail 21.
[0038] Specifically, the steering assembly 2 also includes: a first connecting rod 23, the top of which is bolted to the output shaft of an electric push rod 22; a second connecting rod 24, which is rotatably connected to the bottom of the first connecting rod 23; and a third connecting rod 25, located at both ends of the second connecting rod 24, which is rotatably connected to the second connecting rod 24 and welded to the connecting shaft 26.
[0039] In this embodiment, the electric push rod 22 extends and retracts to push the slider to move along the slide rail 21, thereby driving the steering mechanism to achieve steering adjustment. The electric push rod 22 drives the linkage mechanism to move, which in turn drives the connecting shaft 26 to rotate through the connecting rod 25, thereby changing the direction of the wheel 27.
[0040] Example 3:
[0041] Specifically, the drive assembly 3 also includes: a second slide rail 31, which is bolted to the bottom of the flat car body 1; and a drive motor 32, with a sliding plate bolted to its top, the sliding plate being slidably connected to the second slide rail 31.
[0042] Specifically, the drive assembly 3 also includes: a first bevel gear 33, which is fixedly connected to the output shaft of the drive motor 32; and a second bevel gear 34, which is fixedly connected to the rotating shaft 35 and meshes with the first bevel gear 33.
[0043] Specifically, the bottom of the flatcar body 1 is also provided with a support module 38, which includes: an electric push rod 381, which is bolted to the bottom of the flatcar body 1, and the output shaft is bolted to the drive motor 32; a bevel gear 382, which has a mounting shaft fixedly connected to the middle, and the mounting shaft is fixedly connected to the flatcar body 1 through a support plate, and the mounting shaft is rotatably connected to the support plate and meshes with the bevel gear 33; and a flat gear 383, which is fixedly connected to the other end of the mounting shaft.
[0044] Specifically, the support module 38 also includes: a rack 384, which is disposed on one side of the spur gear 383 and meshes with the spur gear 383; a support block 385, whose side wall is welded to the rack 384 and whose bottom is attached with an anti-slip pad; and multiple telescopic rods 386, which are welded at both ends to the bottom of the flatcar body 1 and the support block 385 respectively, and have springs inside.
[0045] In this embodiment, the drive motor 32 can move along the slide rail 31 to adjust its relative position with the rotating shaft 35. The drive motor 32 transmits power to the rotating shaft 35 through bevel gear transmission, which drives the wheel 36 to rotate and drive the flatcar to move. The electric push rod 381 adjusts the position of the drive motor 32 and changes the meshing state of the bevel gear 33 with different gears to realize the switching between drive and support. The rotation of the flat gear 383 drives the rack 384 to rise and fall, so that the support block 385 contacts the ground to support the flatcar. The telescopic rod 386 and the spring provide buffering and reset functions.
[0046] In actual use, the device initially has bevel gear 33 and bevel gear 34 meshing. The operator first places the goods on the flatcar body 1, then starts the drive motor 32 via the controller. The drive motor 32 drives the rotating shaft 35 to rotate via bevel gears 33 and 34, causing wheel 36 to rotate, thus moving the flatcar body 1. When turning is required, the electric push rod 22 is activated. The electric push rod 22, through connecting rods 23, 24, and 35, causes the connecting shaft 26 to rotate around the support shaft 28, causing wheel 27 to rotate, thus turning the flatcar body 1. When it reaches the position where unloading is required... First, turn off the drive motor 32 and start the electric push rod 381. The electric push rod 381 pushes the drive motor 32, causing the bevel gear 33 to mesh with the bevel gear 382. Then, start the drive motor 32. The drive motor 32 drives the spur gear 383 to rotate through the bevel gear 33 and the bevel gear 382. The spur gear 383 drives the support block 385 to descend through the rack 384, so that the anti-slip pad at the bottom of the support block 385 contacts the ground. After unloading is completed, start the electric push rod 381, so that the bevel gear 33 re-meshes with the bevel gear 34. The support block 385 automatically resets under the action of the telescopic rod 386.
[0047] Electric push rod 22, drive motor 32 and electric push rod 381 are all electrically connected to the PLC controller. The PLC controller is electrically connected to an external power supply. The PLC controller facilitates the power supply control of the electrical equipment, allowing the equipment to be powered on when needed, thus avoiding the situation where power cannot be supplied when needed.
[0048] It should be noted that the controller can be a conventional known device that is controlled by a computer or other means. The detailed description of known functions and known components is omitted in the specific embodiments of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.
[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drive and steering device for a heavy-duty omnidirectional flatcar, characterized in that: include: The flatcar body (1) has a bottom plate (11) welded to its bottom; The steering assembly (2) includes a connecting shaft (26), a wheel (27) and a support shaft (28). The connecting shaft (26) is located at the bottom of the flatcar body (1). The wheel (27) is rotatably connected to the connecting shaft (26). The top end of the support shaft (28) is welded to both ends of the bottom side of the flatcar body (1). The support shaft (28) is rotatably connected to the connecting shaft (26). The bottom end of the support shaft (28) passes through the connecting shaft (26) and is locked with a nut. The drive assembly (3) includes a rotating shaft (35) and a second wheel (36). The two ends of the rotating shaft (35) are rotatably connected to the base plate (11). The rotating shaft (35) is located on the side away from the steering assembly (2). The second wheel (36) is fixedly connected to the rotating shaft (35).
2. The drive and steering device for a heavy-duty omnidirectional flatcar according to claim 1, characterized in that: The steering assembly (2) also includes: Slide rail 1 (21) is bolted to the bottom of the flatcar body (1); Electric push rod 1 (22) has a mounting plate welded to one end. The mounting plate is connected to the slider by bolts, and the slider is slidably connected to slide rail 1 (21).
3. The drive and steering device for a heavy-duty omnidirectional flatcar according to claim 1, characterized in that: The steering assembly (2) also includes: The top end of the connecting rod (23) is connected to the output shaft of the electric push rod (22) by bolts; Link 2 (24) is rotatably connected to the bottom end of link 1 (23); Linkage 3 (25) is located at both ends of link 2 (24), and is rotatably connected to link 2 (24) and welded to the connecting shaft (26).
4. The drive and steering device for a heavy-duty omnidirectional flatcar according to claim 1, characterized in that: The driving component (3) also includes: Slide rail 2 (31) is bolted to the bottom of the flatcar body (1); The drive motor (32) has a sliding plate bolted to its top, and the sliding plate is slidably connected to the slide rail (31).
5. The drive and steering device for a heavy-duty omnidirectional flatcar according to claim 1, characterized in that: The driving component (3) also includes: The first bevel gear (33) is fixedly connected to the output shaft of the drive motor (32); The second bevel gear (34) is fixedly connected to the rotating shaft (35) and meshes with the first bevel gear (33).
6. The drive and steering device for a heavy-duty omnidirectional flatcar according to claim 1, characterized in that: The bottom of the flatcar body (1) is also provided with a support module (38), which includes: Electric push rod 2 (381) is bolted to the bottom of the flat car body (1), and its output shaft is bolted to the drive motor (32); The third bevel gear (382) has a mounting shaft fixedly connected in the middle. The mounting shaft is fixedly connected to the flat car body (1) through the support plate. The mounting shaft is rotatably connected to the support plate and meshes with the first bevel gear (33). The spur gear (383) is fixedly connected to the other end of the mounting shaft.
7. The drive and steering device for a heavy-duty omnidirectional flatcar according to claim 6, characterized in that: The support module (38) also includes: A rack (384) is disposed on one side of a spur gear (383) and meshes with the spur gear (383); The support block (385) has its sidewalls welded to the rack (384) and its bottom is attached with an anti-slip pad. Multiple telescopic rods (386) are provided, with both ends welded to the bottom of the flatcar body (1) and the support block (385) respectively, and springs are provided inside.