A rail-mounted triangular constraint suspension hoist for complex paths

Abstract

The utility model discloses a kind of track type triangle restraint hanging lifting devices for complex path, including track beam and drive trolley, drive trolley is arranged on track beam and can operate, drive trolley includes cage frame, cage frame is made of two side plates of left-right symmetry and the crossbeam of connecting two side plates;Drive trolley further includes driving gear and at least two upper fixed wheels, driving gear and upper fixed wheel are installed on the cage frame;Driving gear and the meshing point of rack on track beam and the upper fixed wheel and the rolling contact point of flange inner surface on track beam, in vertical plane, jointly constitute triangle locking structure, for inhibiting the sway in the operation of drive trolley.This utility model triangle locking structure and the rigid synergic effect of cage frame, make drive trolley obtain extremely strong geometric constraint when operating, can effectively inhibit the sway and deflection in each direction, to reach the comprehensive purpose of improving running stability, reducing noise and enhancing overall reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of track-type lifting equipment, specifically to a track-type triangular constraint suspension lifting device for complex paths. Background Technology

[0002] Currently, in rail-mounted lifting devices, especially in the field of stair lifts, the stability of the drive trolley on the track is crucial to passenger comfort and safety. Existing drive trolleys often use simple wheel sets and track combinations, which, while generally meeting basic requirements for straight-line operation, commonly suffer from insufficient resistance to swaying and shaking, resulting in poor operational smoothness and a tendency to generate noise and sway.

[0003] In particular, when the device operates on complex paths, such as tracks with inclines or slight curves, traditional guidance and drive structures are more prone to instability due to insufficient constraint, and may even experience "jamming" or "impact". This not only reduces the user experience, but also poses a challenge to the long-term reliability of the structure.

[0004] To address these issues, existing technologies either increase the number of wheelsets or employ complex external stabilizing mechanisms. However, these solutions often result in bulky structures and increased costs, and fail to fundamentally create a stable mechanical structure that effectively suppresses swaying in the vertical plane. Therefore, there is an urgent need for a built-in, compact solution that provides high-efficiency stability. Utility Model Content

[0005] In view of the above-mentioned technical problems in related technologies, this utility model proposes a track-type triangular constraint suspension lifting device for complex paths, which can overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: A track-type triangular constraint suspension lifting device for complex paths; The track-type triangular constraint hoisting device for complex paths includes a track beam and a drive trolley that can run within the track beam. The driving trolley includes a cage-like frame composed of side plates and crossbeams arranged symmetrically on the left and right sides. The driving trolley is provided with a driving gear at the bottom and at least two fixed wheels at the top. The drive gear meshes with the rack on the lower flange of the track beam to form the first fulcrum, and the fixed wheel rolls into contact with the inner surface of the upper flange of the track beam to form the second and third fulcrums; The first, second, and third fulcrums form a stable triangular geometric constraint structure in the vertical plane. When the trolley is driven to run, the stable triangular geometric constraint structure generates a self-correcting restoring torque on its attitude sway, so as to realize the self-stabilized operation and anti-sway function within the track.

[0007] Furthermore, the stable triangular geometric constraint structure consists of two sets arranged symmetrically on the left and right sides, respectively corresponding to the inner walls of the left and right sides of the track beam.

[0008] Furthermore, each set of the stable triangular geometric constraint structures includes one drive gear and two upper fixed wheels.

[0009] Furthermore, the drive gear is driven by a drive motor, which is mounted on the cage frame, and the output end of the drive motor is connected to the drive gear through a transmission mechanism.

[0010] Furthermore, right-angle motors are fixedly mounted on both sides of the cage frame via motor bases, and the right-angle motors are connected to the transmission shaft via couplings.

[0011] Furthermore, the shaft system of the drive gear is mounted between the left and right side plates via bearings.

[0012] Furthermore, the lower part of the cage frame is provided with an interface for connecting a hanging platform or a rigid hanging device.

[0013] The beneficial effects of this utility model are as follows: By forming a stable triangular geometric constraint structure in the vertical plane, which is jointly composed of the meshing point of the drive gear and the rack and the rolling contact point between the upper fixed wheel and the inner surface of the upper flange of the track beam, and the rigidity of the cage frame, the drive trolley obtains extremely strong geometric constraints when running in the track beam, effectively suppressing swaying and wobbling in all directions; thereby achieving the comprehensive purpose of greatly improving the smoothness of device operation, reducing noise and enhancing the overall reliability of the structure.

[0014] This invention is the first to construct a geometric triangular locking constraint within the track, enabling the vehicle to form a self-correcting and stable structure under forces from both sides. The geometric relationship is as follows: the upper roller fulcrum, the gear meshing point, and the track centerline form a stable triangular region.

[0015] This invention constructs a triangular geometric locking constraint system within the track. This system utilizes the gear meshing point and two rolling contact points to form a stable triangular geometric relationship. When the driving trolley is subjected to external force and swayes, the triangular structure generates a self-correcting restoring torque, causing the trolley to automatically return to the center position of the track, thus significantly suppressing swaying and overturning tendencies. Compared with traditional multi-wheel guides or external anti-sway mechanisms, this invention does not rely on additional control units; it achieves inherent structural stability through the principle of geometric constraints. Prototype experiments have verified that when carrying 100kg on a 5° inclined track, the sway amplitude is reduced by approximately 70% and noise by approximately 50% compared to ordinary guide wheel solutions. Therefore, this invention is not only innovative in its mechanical structure but also, for the first time, proposes the concept of a "self-stabilizing triangular region within the track," demonstrating significant technological advancement and industrial application value. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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 these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a track-type triangular constraint suspension lifting device for complex paths, according to an embodiment of the present utility model. Figure 2 This is a schematic diagram illustrating the straight track operation and force application principle of a track-type triangular constraint suspension lifting device for complex paths, according to an embodiment of this utility model. Figure 3 This is a schematic diagram illustrating the inclined track operation and force application principle of a track-type triangular constraint suspension lifting device for complex paths, according to an embodiment of this utility model. In the diagram: 1. Track beam; 11. Rack; 2. Drive trolley; 21. Drive gear; 23. Upper fixed wheel; 3. Cage frame; 31. Side plate; 4. Coupling; 5. Motor base; 6. Right-angle motor; 7. Motor; 8. Drum; 9. Bearing; 10. Drive shaft; 12. Rigid suspension device. Detailed Implementation

[0018] 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 skilled in the art are within the protection scope of the present utility model.

[0019] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0020] like Figure 1-3 As shown, a track-type triangular constraint suspension lifting device for complex paths according to an embodiment of the present utility model includes a track beam 1 and a drive trolley 2 that can run within the track beam 1. The driving trolley 2 includes a cage frame 3 composed of side plates 31 arranged symmetrically on the left and right and cross beams. The driving trolley 2 is provided with a driving gear 21 at the bottom and at least two fixed wheels 23 at the top. The drive gear 21 meshes with the rack 11 on the lower flange of the track beam 1 to form the first fulcrum, and the fixed wheel 23 rolls into contact with the inner surface of the upper flange of the track beam 1 to form the second and third fulcrums. The first, second, and third fulcrums form a stable triangular geometric constraint structure in the vertical plane. When the trolley 2 is driven, the stable triangular geometric constraint structure generates a self-correcting restoring torque on its attitude sway, so as to realize the self-stabilized operation and anti-sway function within the track.

[0021] According to an embodiment of the present invention, a track-type triangular constraint suspension lifting device for complex paths is provided. In a specific embodiment, the stable triangular geometric constraint structure consists of two sets arranged symmetrically on the left and right sides, respectively corresponding to the inner walls of the left and right sides of the track beam 1.

[0022] According to an embodiment of the present invention, a track-type triangular constraint suspension lifting device for complex paths is provided. In a specific embodiment, each set of stable triangular geometric constraint structures includes a drive gear 21 and two upper fixed wheels 23.

[0023] According to an embodiment of the present invention, a track-type triangular constraint suspension lifting device for complex paths is provided. In a specific embodiment, the drive gear 21 is driven by a drive motor 7, the drive motor 7 is mounted on the cage frame 3, and the output end of the drive motor 7 is connected to the drive gear 21 through a transmission mechanism.

[0024] According to an embodiment of the present invention, a track-type triangular constraint suspension lifting device for complex paths is provided. In a specific embodiment, a right-angle motor 6 is fixedly mounted on both sides of the cage frame 3 via a motor base 5. The right-angle motor 6 is connected to the transmission shaft 10 via a coupling 4.

[0025] According to an embodiment of the present invention, a track-type triangular constraint suspension lifting device for complex paths is provided. In a specific embodiment, the shaft of the drive gear 21 is mounted between the left and right side plates 31 via bearings 9.

[0026] According to an embodiment of the present invention, a track-type triangular constraint suspension lifting device for complex paths is provided. In a specific embodiment, the lower part of the cage frame 3 is provided with an interface for connecting the suspension platform or the rigid suspension device 12.

[0027] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0028] In practical use, the core of the track-type triangular constraint suspension lifting device for complex paths according to this utility model lies in the stable structure adopted by the drive trolley 2. Referring to the attached drawings, the cage frame 3 of the drive trolley 2, through its symmetrically arranged side plates 31 and connecting beams, forms a rigid whole. This frame is housed within the cavity of the track beam 1.

[0029] In this embodiment, the stable triangular geometric constraint structure is implemented as follows: On each side plate 31 of the cage frame 3, a drive gear 21 driven by a drive motor 7 through a transmission mechanism is installed at the lower part, and two upper fixed wheels 23 are installed at the upper part. When the drive trolley 2 is placed inside the track beam 1, the drive gear 21 and the rack 11 fixed to the lower flange of the track beam 1 form a meshing point; at the same time, the two upper fixed wheels 23 press tightly against the inner surface of the upper flange of the track beam 1, forming two rolling contact points.

[0030] These three points (one lower gear-rack meshing point and two upper wheel-rail rolling contact points) together form a stable triangular geometric constraint in a vertical plane perpendicular to the track, thus forming the stable triangular geometric constraint structure. Because the inner walls of the left and right sides of the track beam 1 are symmetrically equipped with identical structures, the drive trolley 2 is securely "locked" inside the track beam 1.

[0031] When in operation, this structure can effectively suppress the lateral swaying, forward and backward tilting, and torsional tendencies that may occur during the operation of the drive trolley 2. The power of the drive motor 7 is converted into forward thrust through the meshing of the drive gear 21 and the rack 11, and any unstable tendencies during operation are absorbed and canceled by the stable triangular geometric constraint structure, thereby ensuring extremely high linear running stability.

[0032] In summary, by utilizing the above-mentioned technical solution of this utility model, a stable triangular geometric constraint structure jointly formed in the vertical plane by the meshing point of the drive gear and rack and the rolling contact point between the upper fixed wheel and the inner surface of the upper flange of the track beam, combined with the rigidity of the cage frame, enables the drive trolley to obtain extremely strong geometric constraints when running within the track beam, effectively suppressing swaying and wobbling in all directions; thereby achieving the comprehensive purpose of significantly improving the operational stability of the device, reducing noise, and enhancing the overall reliability of the structure.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 track-type triangular constraint suspension lifting device for complex paths, characterized in that, Includes a track beam (1) and a drive trolley (2) that can run within the track beam (1); The drive trolley (2) includes a cage frame (3) consisting of side plates (31) arranged symmetrically on the left and right and cross beams. The drive trolley (2) has a drive gear (21) at the bottom and at least two fixed wheels (23) at the top. The drive gear (21) meshes with the rack (11) on the lower flange of the track beam (1) to form the first fulcrum, and the fixed wheel (23) rolls into contact with the inner surface of the upper flange of the track beam (1) to form the second fulcrum and the third fulcrum. The first fulcrum, the second fulcrum, and the third fulcrum form a stable triangular geometric constraint structure in the vertical plane. When the trolley (2) is driven to run, the stable triangular geometric constraint structure generates a self-correcting restoring torque on its attitude sway, so as to realize the self-stabilized operation and anti-shaking function in the track.

2. The track-type triangular constraint suspension lifting device for complex paths according to claim 1, characterized in that, The stable triangular geometric constraint structure consists of two sets arranged symmetrically on the left and right sides, respectively corresponding to the inner walls of the left and right sides of the track beam (1).

3. A track-type triangular constraint suspension lifting device for complex paths according to claim 2, characterized in that, Each set of the stable triangular geometric constraint structures includes one drive gear (21) and two upper fixed wheels (23).

4. A track-type triangular constraint suspension lifting device for complex paths according to claim 1, characterized in that, The drive gear (21) is driven by the drive motor (7), which is mounted on the cage frame (3), and the output end of the drive motor (7) is connected to the drive gear (21) through a transmission mechanism.

5. A track-type triangular constraint suspension lifting device for complex paths according to claim 4, characterized in that, A right-angle motor (6) is fixedly mounted on both sides of the cage frame (3) via a motor base (5), and the right-angle motor (6) is connected to the transmission shaft (10) via a coupling (4).

6. A track-type triangular constraint suspension lifting device for complex paths according to claim 1, characterized in that, The shaft of the drive gear (21) is mounted between the left and right side plates (31) via bearings (9).

7. A track-type triangular constraint suspension lifting device for complex paths according to claim 1, characterized in that, The lower part of the cage frame (3) is provided with an interface for connecting a hanging platform or a rigid hanging device (12).

Images