Suspension type trolley curve rail adaptive bearing walking device
By using a dual-track parallel curved track design and an adaptive adjustment mechanism, the problem of unstable operation of the suspended trolley under complex track conditions was solved, enabling the suspended trolley to operate smoothly on complex tracks and extending the equipment's lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI TOHUI ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional suspended trolley curved track walking devices cannot adapt to tracks of different widths, resulting in wheel flange jamming, transmission system overload and severe wear, affecting the reliability and lifespan of the equipment.
The design employs a double-track parallel curved track, combined with movable grooves, supports, shafts, movable wheels, motors, sprocket and chain drive systems, and dampers, to achieve adaptive adjustment of track width variations. The movable grooves and dampers compensate for track spacing errors and maintain stable contact pressure.
It enables the suspended trolley to operate smoothly under complex track conditions, reduces jamming and wear, and improves the operational reliability and service life of the equipment.
Smart Images

Figure CN224465844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of suspended trolley technology, and in particular to a suspended trolley curved track adaptive bearing and walking device. Background Technology
[0002] As an important piece of equipment in the field of industrial material handling, the suspended trolley is characterized by its structure, which enables the aerial transport of loads through a top suspension mechanism. This design can effectively save ground space and overcome obstacles. The main body of the trolley usually includes a load-bearing frame, a traveling mechanism, a drive system, and a suspension connection device. It plays a key role in automated production lines and warehousing and logistics systems. The suspended layout makes the material conveying path plannable in three-dimensional space, which is particularly suitable for space-constrained operating environments such as factory workshops.
[0003] Suspended trolley curved track systems are a special type of track developed to meet the needs of complex spatial paths. Compared with traditional straight tracks, curved tracks use a curved design to achieve turning and changing direction of the conveying path. The track cross-section is usually an I-shaped or closed box structure to provide sufficient bending stiffness. The parallel arrangement of double tracks ensures the stability of trolley operation. This track system can design the optimal material flow path according to the factory layout, which greatly improves the space utilization and logistics efficiency of the production system.
[0004] In actual working conditions, curved tracks face technical challenges due to changes in curvature. Due to manufacturing and installation errors or deformation from long-term use, the track gauge can change in curved sections. The thermal expansion and contraction caused by temperature fluctuations can also affect the track spacing. Traditional rigid connection walking mechanisms cannot adapt to these dynamic changes, which can easily lead to problems such as wheel flange jamming and overload of the transmission system. Especially in composite curved track sections, multi-directional forces can exacerbate the wear of traditional structures, seriously affecting the reliability and service life of the equipment. Utility Model Content
[0005] The purpose of this invention is to provide a suspended trolley curved track adaptive bearing and walking device, which solves the problem that traditional suspended trolley bearing and walking devices cannot adapt to tracks of different widths.
[0006] To achieve the above objectives, this utility model provides a suspended trolley curved track adaptive load-bearing walking device, including a curved track, which is a double parallel track. A main frame is movably mounted on the lower side of the curved track, and a connecting plate is movably mounted on the lower side of the main frame. The connecting plate is connected to the trolley by fastening bolts. A drive mechanism is fixedly mounted on the upper end of the main frame. The curved track serves as the operating foundation of the entire device, and the double parallel track design ensures load-bearing stability and provides a precise guiding path for the walking mechanism. The main frame connects the upper drive mechanism and the lower load-bearing structure, realizing the dual functions of power transmission and load support. The connecting plate serves as the interface component between the trolley and the walking device, and the rigidity of the overall structure is ensured by a fastening connection. The drive mechanism includes multiple cooperating components.
[0007] The drive mechanism includes a movable slot, and the upper end of the main frame has a movable slot. A bracket is movably mounted on the upper end of the movable slot. The movable slot provides adjustable movement space for the bracket, allowing the mechanism to adaptively adjust when the track width changes. The bracket serves as the mounting platform for the drive unit.
[0008] The bracket has a fixed shaft at its upper end, and movable wheels are movably mounted at both ends of the shaft. The shaft is fixed to the upper part of the bracket to provide rotational support for the movable wheels and maintain the positioning accuracy of the transmission sprocket. The movable wheels directly contact the track and roll, converting rotational motion into linear displacement of the device.
[0009] The bracket has a motor fixedly mounted on its right end, and a first sprocket is fixedly mounted on the output shaft of the motor. The motor serves as a power source and outputs stable torque. Efficient power transmission is achieved through the sprocket and chain system. The first sprocket is fixedly connected to the output shaft of the motor and transmits rotational power to the transmission chain.
[0010] The movable wheel has a second sprocket fixedly mounted on its shaft. The first sprocket and the second sprocket are connected by a chain. The second sprocket is coaxially mounted with the movable wheel, converting the chain power into the rotation of the wheel. The chain connects the two sprockets to form a closed transmission ring, ensuring the synchronicity and reliability of power transmission.
[0011] The lower end of the bracket is fixedly equipped with a movable block, and the left and right ends of the movable block are fixedly equipped with first dampers.
[0012] The lower end of the connecting plate has several slots. A second damper is fixed between the main frame and the connecting plate. The movable block is fixed at the lower part of the bracket as the mounting base of the damping system. The first damper is symmetrically arranged on both sides of the movable block. It absorbs lateral vibration and compensates for track spacing error through elastic deformation.
[0013] The slot is fixedly equipped with bolts, which pass through the connecting plate and connect to the second damper. The slot is designed at the bottom of the connecting plate to provide an installation position and adjustment space for the preload adjustment bolt. The bolt passes through the connecting plate and connects to the damper. The initial pressure of the damping system is changed by the screwing depth. The second damper is installed between the main frame and the connecting plate and is specifically used to buffer longitudinal vibration impact during operation.
[0014] The curved track's dual-track parallel design, combined with the movable support structure, allows the movable wheels to automatically adjust their position according to changes in track spacing. The motor precisely controls the speed of the movable wheels through a sprocket and chain transmission system. The movable block and damper at the lower end of the support form a lateral adjustment module, which can compensate for track installation errors in real time. The damper system between the connecting plate and the main frame absorbs longitudinal vibrations. The entire mechanism can maintain stable contact pressure without manual intervention during operation, effectively solving the jamming problem caused by dimensional deviations in traditional track equipment. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0016] Figure 1 This is a schematic diagram of the overall structure of the suspended trolley curved track adaptive load-bearing walking device according to an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of the adaptive load-bearing walking device according to an embodiment of the present invention.
[0018] Figure 3 This is a schematic cross-sectional view of the bracket structure according to an embodiment of the present invention.
[0019] Figure 4 This is a schematic cross-sectional view of the main frame structure according to an embodiment of the present invention.
[0020] 1. Curved track; 2. Main frame; 3. Connecting plate; 4. Drive mechanism; 401. Movable groove; 402. Bracket; 403. Shaft bracket; 404. Movable wheel; 405. Motor; 406. First sprocket; 407. Second sprocket; 408. Chain; 409. Movable block; 410. First damper; 5. Groove; 6. Bolt; 7. Second damper. Detailed Implementation
[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0022] Please see Figures 1-4A suspended trolley with curved track adaptive load-bearing walking device includes a curved track 1, which is a double parallel track. A main frame 2 is movably mounted on the lower side of the curved track 1, and a connecting plate 3 is movably mounted on the lower side of the main frame 2. The connecting plate 3 is connected to the trolley by fastening bolts. A drive mechanism 4 is fixedly mounted on the upper end of the main frame 2. The drive mechanism 4 includes a movable groove 401. The movable groove 401 is opened on the upper end of the main frame 2, and a bracket 402 is movably mounted on the upper end of the movable groove 401. The curved track 1 adopts a double parallel structure to provide the running path and load-bearing surface for the entire device. The main frame 2 serves as the core support frame, connecting various functional components and transmitting loads. The connecting plate 3 achieves a rigid connection between the trolley and the walking device through fastening bolts. The movable groove 401 in the drive mechanism 4 provides axial movement space for the bracket 402 to adapt to changes in track curvature. The bracket 402 serves as a transmission system mounting platform to support various rotating components.
[0023] Please see Figures 1-4 A shaft bracket 403 is fixedly mounted on the upper end of the bracket 402. Movable wheels 404 are movably mounted on both the left and right ends of the shaft bracket 403. A motor 405 is fixedly mounted on the right end of the bracket 402. A first sprocket 406 is fixedly mounted on the output shaft of the motor 405. A second sprocket 407 is fixedly mounted on the rotating shaft of the movable wheel 404. The first sprocket 406 and the second sprocket 407 are connected by a chain 408. The shaft bracket 403 is fixed to the upper end of the bracket for mounting and positioning the movable wheel 404. The movable wheel 404 rolls in the curved track 1 to realize the walking function of the device. The motor 405 outputs rotational motion as a power source. The first sprocket 406 transmits the motor power to the chain 408. The second sprocket 407 converts the chain power into the rotation of the movable wheel 404. The chain 408 connects the first sprocket 406 and the second sprocket 407 as a flexible transmission component.
[0024] Please see Figures 1-4 A movable block 409 is fixedly installed at the lower end of the bracket 402. A first damper 410 is fixedly installed at both ends of the movable block 409. Several slots 5 are opened at the lower end of the connecting plate 3. A second damper 7 is fixedly installed between the main frame 2 and the connecting plate 3. Bolts 6 are fixedly installed inside the slots 5. The bolts 6 pass through the connecting plate 3 and connect to the second damper 7. The movable block 409 is fixed at the lower end of the bracket 402 for installing the first damper 410. The first damper 410 absorbs lateral vibration and compensates for track spacing error through elastic deformation. The slots 5 are opened on the connecting plate 3 to provide installation and adjustment space for the bolts 6. The bolts 6 pass through the connecting plate 3 for fixing and adjusting the preload of the second damper 7. The second damper 7 is installed between the main frame 2 and the connecting plate 3 to buffer longitudinal vibration.
[0025] Working principle: The curved track 1 serves as a double parallel track to support the operation of the entire device. The main frame 2 is movably connected to the underside of the curved track 1 and is fixed to the trolley with fastening bolts via the connecting plate 3. The drive mechanism 4 enables the flexible movement of the support 402 through the movable groove 401 at the upper end of the main frame 2. The shaft frame 403 is fixed to the upper end of the support 402 and supports the movable wheels 404 on both sides to achieve rolling operation within the curved track 1. The motor 405 drives the chain 408 to rotate the second sprocket 407 through the first sprocket 406 at the output shaft end, thereby transmitting power to the movable wheels 404 and the movable block 4. 09 is fixed to the lower end of the bracket 402 and achieves lateral fine-tuning compensation for the width error of the curved track 1 through the first dampers 410 on both sides. Bolts 6 are set in the slot 5 at the lower end of the connecting plate 3 to adjust the preload of the second damper 7 that passes through the connecting plate 3. When the device is running, the movable wheel 404 rolls inside the curved track 1 to drive the trolley to move. The bracket 402 achieves dynamic adjustment of the track spacing through the adaptive mechanism composed of the movable block 409 and the first damper 410. The power output by the motor 405 is efficiently transferred through the transmission system composed of the first sprocket 406, the chain 408 and the second sprocket 407. The rotational motion of the movable wheel 404 is transformed into that of the shaft frame 403, which supports the movable wheel 404 while providing installation space for the second sprocket 407. Longitudinal vibrations generated during operation are absorbed by the second damper 7 between the main frame 2 and the connecting plate 3, while lateral vibrations are buffered by the first damper 410. The bolts 6 in the slot 5 can adjust the initial pressure of the second damper 7 according to actual working conditions to optimize the damping effect. The contact surface between the movable wheel 404 and the curved track 1 always maintains a stable contact pressure to ensure transmission efficiency. The elastic deformation of the first damper 410 can automatically adapt to installation errors of the curved track 1. The displacement range of the drive mechanism 4 within the movable groove 401 ensures that the device can smoothly pass through the curved section of the track. The coaxial design of the second sprocket 407 and the movable wheel 404 enables direct power transmission. The tension of the chain 408 is automatically maintained by the position of the bracket 402 within the movable groove 401. The relative movable space between the connecting plate 3 and the main frame 2 provides an effective working stroke for the second damper 7. The adjustable installation position of the bolt 6 within the slot 5 enables precise control of different preloads of the second damper 7. The entire device achieves smooth and adaptive travel on the curved track 1 through the synergistic effect of the mechanical structure.
[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A suspended trolley curved track adaptive load-bearing travel device, comprising a curved track (1), characterized in that, The curved track (1) is a double parallel track. A main frame (2) is movably arranged on the lower side of the curved track (1). A connecting plate (3) is movably arranged on the lower side of the main frame (2). The connecting plate (3) is connected to the trolley by fastening bolts. A drive mechanism (4) is fixedly arranged on the upper end of the main frame (2).
2. The suspended trolley curved track adaptive load-bearing walking device as described in claim 1, characterized in that, The drive mechanism (4) includes a movable slot (401), the upper end of the main frame (2) is provided with a movable slot (401), and a bracket (402) is movably provided at the upper end of the movable slot (401).
3. The suspended trolley curved track adaptive load-bearing walking device as described in claim 2, characterized in that, The upper end of the bracket (402) is fixedly provided with a shaft frame (403), and the left and right ends of the shaft frame (403) are movably provided with movable wheels (404).
4. The suspended trolley curved track adaptive load-bearing walking device as described in claim 3, characterized in that, A motor (405) is fixedly installed at the right end of the bracket (402), and a first sprocket (406) is fixedly installed at the output shaft end of the motor (405).
5. The suspended trolley curved track adaptive load-bearing walking device as described in claim 4, characterized in that, A second sprocket (407) is fixedly mounted on the shaft of the movable wheel (404), and the first sprocket (406) and the second sprocket (407) are connected by a chain (408).
6. The suspended trolley curved track adaptive load-bearing walking device as described in claim 2, characterized in that, A movable block (409) is fixedly installed at the lower end of the bracket (402), and a first damper (410) is fixedly installed at the left and right ends of the movable block (409).
7. The suspended trolley curved track adaptive load-bearing traveling device as described in claim 1, characterized in that, The lower end of the connecting plate (3) is provided with several slots (5), and a second damper (7) is fixedly installed between the main frame (2) and the connecting plate (3).
8. The suspended trolley curved track adaptive bearing walking device as described in claim 7, wherein a bolt (6) is fixedly installed inside the slot (5), and the bolt (6) passes through the connecting plate (3) and is connected to the second damper (7).