Self-stabilizing conveying device
The self-stabilizing conveying device with gravity self-balancing and mechanical limiting solves the problem of material spillage under vibration and load changes in traditional conveying devices, and realizes efficient, stable and low-energy conveying of easily scattered materials, with precise unloading capability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional conveying devices are prone to material spillage or leakage when vibrating, turning, or when the load changes. Furthermore, their power drive structure is complex, has a slow response, and a high failure rate, making it difficult to achieve stable and accurate material conveying and unloading.
The self-stabilizing conveyor, which adopts a gravity self-balancing and mechanical limit design, utilizes the pendulum structure of the carrier and the cooperation of the support wheels and support rails to achieve automatic stabilization of the carrier at the position of minimum gravitational potential energy. Combined with the non-powered overturning mechanism and rolling friction structure, it achieves continuous and stable material conveying and precise unloading.
It achieves high efficiency, stability, and low energy consumption in material conveying, reduces structural complexity and maintenance costs, improves anti-disturbance and unloading efficiency, and is suitable for continuous conveying of easily scattered materials such as liquids, colloids, and powders.
Smart Images
Figure CN223962747U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of material conveying technology, and specifically relates to a self-stabilizing conveying device. Background Technology
[0002] In industrial production and logistics, the stable transport of materials is a key factor in ensuring production continuity and product quality. This is especially true for easily dispersed materials such as liquids, gels, and powders, whose high fluidity and susceptibility to vibration and gravity place even higher demands on the stability of conveying systems.
[0003] However, in traditional conveying devices (such as roller conveyors and conveyor belts), material containers are prone to tilting due to center of gravity shift when the equipment encounters vibration, turning, or load changes during operation, leading to material spillage or leakage. Furthermore, conventional unloading stations often rely on motors, cylinders, or other power devices to actively drive the carrier's tilting, resulting in complex structures, slow response times, and high failure rates. For example, some equipment requires independent drive units at the tilting point, increasing system costs and maintenance complexity. Instability in power input can also lead to deviations in tilting angle control, affecting unloading efficiency.
[0004] In summary, existing technologies have significant limitations in terms of stability, precise control, and adaptability, necessitating a conveying device that requires no external active control and possesses adaptive adjustment capabilities. This invention, through a synergistic design of gravity self-balancing and mechanical limiting, combined with a low-friction circulating chain and a non-powered tilting mechanism, achieves dynamic anti-tipping, precise unloading, and high disturbance resistance while reducing energy consumption, providing a more reliable technical solution for the continuous conveying of easily scattered materials. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a self-stabilizing conveying device.
[0006] The self-stabilizing conveying device provided by this utility model includes at least two parallel guide rails, at least two circulating chains that move synchronously along the guide rails, and a carrier rotatably connected to the circulating chains; both ends of the carrier are provided with swing blocks, and the swing blocks at both ends are pivotally connected to the circulating chains respectively; the carrier has a receiving groove, and when the carrier is in a stable position with the minimum gravitational potential energy, the opening of the receiving groove faces upward; the carrier also has a support wheel, and a support rail is provided along the movement trajectory of the support wheel, and the support rail supports the underside of the support wheel.
[0007] As a further optimization of the aforementioned self-stabilizing conveying device, a rotating shaft is fixedly installed on the chain plate of the circulating chain, and a corresponding rotating hole is opened on the swing block. The rotating shaft and the rotating hole form a pivotal connection, allowing the carrier to swing freely around the rotating shaft.
[0008] As a further optimization of the aforementioned self-stabilizing conveying device, the receiving tank is elongated and has an opening extending along its length at its top; when the carrier is in a stable equilibrium position with the minimum gravitational potential energy, the opening plane faces upward horizontally, and the height of the opening plane is lower than the central axis of the rotating shaft.
[0009] As a further optimization of the aforementioned self-stabilizing conveying device, two support wheels are arranged at intervals along the direction of travel at both ends of the vehicle. The top surface of the support rail rolls into contact with the bottom of the support wheel, forming a triangular limiting combination that includes a rotating shaft and two support points to restrict the swing freedom of the vehicle.
[0010] As a further optimization of the aforementioned self-stabilizing conveying device, vertically arranged side plates are fixed at both ends of the carrier, and support wheels are rotatably mounted on the inner side of the side plates via axles, with the rolling direction of the support wheels being consistent with the travel direction of the circulating chain.
[0011] As a further optimization of the aforementioned self-stabilizing conveying device, the circulating chain includes several chain links that are hinged at both ends. Adjacent chain links are rotatably connected by a pin, and a roller is rotatably mounted on the pin. The outer circumferential surface of the roller makes rolling contact with the top surface of the guide rail, and the axis of the roller is perpendicular to the traveling direction of the circulating chain.
[0012] As a further optimization of the above-mentioned self-stabilizing conveying device, the guide rail has an L-shaped cross section. The guide rail includes a horizontally arranged support plate and a limiting plate vertically fixed to the outside of the support plate. The top surface of the support plate rolls with the bottom of the roller, and the inner sidewall of the limiting plate forms a lateral limiting on the outside of the chain link.
[0013] As a further optimization of the aforementioned self-stabilizing conveying device, at least one flipping station is set in the movement path of the circulating chain. No support rail for supporting the support wheels is set in the flipping station, and the carrier is automatically flipped when it moves to the flipping station.
[0014] As a further optimization of the above-mentioned self-stabilizing conveying device, a follower gear is fixedly installed at one end of the carrier, and a tilting rack is provided at the tilting station along the traveling direction of the circulating chain; when the carrier moves to the tilting station, the follower gear meshes with the tilting rack, driving the carrier to rotate so that the opening of the receiving groove faces downward.
[0015] As a further optimization of the above-mentioned self-stabilizing conveying device, the number of teeth N1 of the follower gear is 17~100, and the tooth pitch of the flip rack matches the module of the follower gear; the number of teeth of the flip rack is N2, 0.4×N1≤N2≤2.0×N1.
[0016] Beneficial effects
[0017] Compared with existing technologies, the self-stabilizing conveying device provided by this utility model achieves high efficiency and stability in material conveying through the synergistic effect of gravity self-balancing and mechanical limiting. Specifically, the carrier, based on a pendulum structure, lowers the center of gravity to form a self-balancing structure. Combined with the rolling limiting of the support wheels and support rails, this ensures that the opening of the receiving trough automatically maintains an upward orientation during conveying, effectively preventing material spillage. The tilting station achieves automatic, unpowered tilting and unloading through the meshing transmission of follower gears and racks, precisely controlling the tilting angle and eliminating residue. The circulating chain uses a roller guide rail rolling friction structure to reduce energy consumption, and the L-shaped guide rail design combines load-bearing and anti-derailment functions. The overall device has a simple and reliable structure, suitable for the continuous and stable conveying of easily scattered materials such as liquids, gels, and powders, and boasts advantages such as low maintenance costs, high operating efficiency, and strong anti-disturbance capabilities. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the self-stabilizing conveying device.
[0019] Figure 2 for Figure 1 Enlarged schematic diagram of the end of the vehicle.
[0020] Figure 3 This is a schematic diagram of a circular chain.
[0021] Figure 4 This is a schematic diagram of the engagement between the follower gear and the flip rack in the flipping station.
[0022] Figure 5 This is a schematic diagram of the unloading status of the carrier at the tilting station.
[0023] In the diagram, 1 is the guide rail; 2 is the circulating chain; 3 is the carrier; 4 is the support rail; 12 is the support plate; 13 is the limiting plate; 22 is the rotating shaft; 23 is the swing block; 24 is the chain link; 25 is the roller; 26 is the pin; 31 is the receiving groove; 32 is the follower gear; 33 is the support wheel; 34 is the side plate; and 39 is the flip rack. Detailed Implementation
[0024] The present invention is further illustrated by the following embodiments, which are intended to more clearly illustrate the technical solution of the present invention, and should not be construed as a limitation.
[0025] like Figure 1 and Figure 2The self-stabilizing conveyor shown includes two parallel guide rails 1, two circulating chains 2 that move synchronously along the guide rails 1, and a carrier 3 rotatably connected to the circulating chains 2. The guide rails 1 are fixed to the workshop floor by brackets, and the distance between the two guide rails 1 is adjusted according to the length of the carrier 3. The circulating chains 2 are driven synchronously by a motor through a reducer to drive the sprockets, and the chain speed is set according to actual application needs, for example, it is configured to be steplessly adjustable in the range of 0.5-5m / min. The carrier 3 is made of steel and bent and welded, with swing blocks 23 at both ends. The swing blocks 23 have an L-shaped structure, with their vertical section pivotally connected to the circulating chains 2 and their horizontal section fixed to the carrier body. A long strip-shaped receiving groove 31 is set in the middle of the carrier 3, and the groove depth is set according to the needs of the material being loaded, for example, it is configured to be 50mm-150mm. When the carrier 3 is in a natural hanging state, that is, in a stable position with the minimum gravitational potential energy, the opening of the receiving groove 31 faces upward. The bottom of the vehicle 3 is equipped with support wheels 33, and a support rail 4 is provided along the movement trajectory of the support wheels 33. When the vehicle 3 moves, the support wheels 33 and the top surface of the support rail 4 maintain rolling contact, which restricts the vehicle 3 from swinging freely when moving.
[0026] Therefore, this self-stabilizing conveying device ensures the dynamic stability of the carrier 3 during the conveying process through the cooperation of gravity self-balancing and support constraint. Specifically, the carrier 3 is pivotally connected to the circulating chain 2 via the swing block 23, and the center of gravity shift keeps the receiving tank 31 in a stable posture with the opening facing upward, without the need for external power to drive posture adjustment; the supporting effect of the support wheel 33 effectively restricts the swing freedom of the carrier 3 in the vertical plane, and together with the synchronous drive of the circulating chain 2, ensures that the material contained in the carrier 3 remains stable during the conveying process, significantly reducing the risk of material spillage, and is particularly suitable for the efficient and stable conveying of liquid materials, adhesive materials, and powder materials.
[0027] like Figure 2 As shown, a rotating shaft 22 is fixedly installed on the chain plate of the circulating chain 2, and a corresponding rotating hole is opened on the swing block 23. The rotating shaft 22 and the rotating hole form a pivotal connection, allowing the vehicle 3 to swing freely around the rotating shaft 22. The pivotal connection between the rotating shaft 22 and the swing block 23 enables the vehicle 3 to swing freely around the rotating shaft 22, allowing it to naturally droop to a stable posture under the action of gravity.
[0028] like Figure 1 and Figure 2As shown, the receiving tank 31 is elongated, with an opening extending along its length at its top. When the carrier 3 is in a stable equilibrium position with minimal gravitational potential energy, the opening plane faces upwards, and the height of the opening plane is lower than the central axis of the rotation shaft 22. By setting the height of the opening plane of the receiving tank 31 to be lower than the central axis of the rotation shaft 22, the center of gravity of the carrier 3 and the material is always located below the rotation shaft 22, forming a pendulum-like stable structure: when unloaded, the torque generated by the weight of the carrier 3 drives the opening to automatically return to the center; when fully loaded, the weight of the material further lowers the overall center of gravity, enhancing the system's anti-disturbance capability. This gravitational potential trap ensures that no matter how the material loading in the carrier 3 changes, the opening of the receiving tank 31 can be stably kept facing upwards through the gravity self-balancing mechanism, thereby avoiding the risk of material spillage due to attitude deviation.
[0029] In some preferred embodiments, two support wheels 33 are arranged at intervals at both ends of the vehicle 3 along the direction of travel. The top surface of the support rail 4 rolls in contact with the bottom of the support wheel 33, forming a triangular limiting combination including a rotating shaft 22 and two support points to limit the swing freedom of the vehicle 3.
[0030] In some preferred embodiments, such as Figure 1 and Figure 2 As shown, vertically arranged side plates 34 are fixed at both ends of the carrier 3. Support wheels 33 are rotatably mounted on the inner side of the side plates 34 via axles, and the rolling direction of the support wheels 33 is consistent with the traveling direction of the circulating chain 2. The support wheels 33 are located on the inner side of the side plates 34, which can effectively avoid interference with the moving structures such as the circulating chain 2 on the outer side, thereby improving the stability and safety of operation.
[0031] like Figure 3 As shown, the circulating chain 2 includes several chain links 24 hinged at both ends. Adjacent chain links 24 are rotatably connected by pins 26, and rollers 25 are rotatably mounted on the pins 26. The outer circumferential surface of the rollers 25 makes rolling contact with the top surface of the guide rail 1, and the axis of the rollers 25 is perpendicular to the travel direction of the circulating chain 2. The rollers 25 of the circulating chain 2 form a rotating pair with the chain links 24 through the pins 26. The arrangement of their axes perpendicular to the travel direction ensures that the rollers 25 only bear radial loads when rolling along the top surface of the guide rail 1, while the hinged degrees of freedom between the chain links 24 can adapt to the turning requirements of the curved sections of the guide rail 1. The rolling contact between the rollers 25 and the top surface of the guide rail 1 converts sliding friction into rolling friction, significantly reducing drive energy consumption. At the same time, the circumferential limiting effect of the rollers 25 and the hinged linkage of the chain links 24 together ensure the directional and stable movement of the circulating chain 2 on the guide rail 1.
[0032] In some preferred embodiments, the guide rail 1 has an L-shaped cross-section. The guide rail 1 includes a horizontally arranged support plate 12 and a limiting plate 13 vertically fixed to the outside of the support plate 12. The top surface of the support plate 12 rolls with the bottom of the roller 25, and the inner sidewall of the limiting plate 13 provides lateral restraint to the outside of the chain link 24. The L-shaped cross-section of the guide rail 1 forms a double constraint through the support plate 12 and the limiting plate 13: the rolling engagement between the top surface of the support plate 12 and the roller 25 provides vertical load-bearing capacity, dispersing the static and dynamic loads of the circulating chain 2 and the carrier 3; the clearance fit between the inner sidewall of the limiting plate 13 and the outside of the chain link 24 forms lateral guidance, which can prevent the circulating chain 2 from derailing laterally and allow the chain link 24 to have a small degree of freedom of displacement during operation, ensuring smooth operation.
[0033] Furthermore, at least one flipping station is set in the movement path of the circulating chain 2. There is no support rail 4 for supporting the support wheel 33 in the flipping station. When the carrier 3 moves to the flipping station, it is flipped, thereby realizing automatic unloading.
[0034] like Figure 4 As shown, a follower gear 32 is fixedly installed at one end of the carrier 3, and a tilting rack 39 is provided at the tilting station along the traveling direction of the circulating chain 2; when the carrier 3 moves to the tilting station, the follower gear 32 meshes with the tilting rack 39, driving the carrier 3 to rotate, so that the opening of the receiving groove 31 faces downward, forming Figure 5 The state shown is as follows. Through the meshing of the follower gear 32 and the tilting rack 39, the horizontal movement of the carrier 3 is converted into rotational motion around the rotating shaft 22. When the carrier 3 moves to the tilting position, the follower gear 32 is driven to rotate by the meshing action of the tilting rack 39, forcing the carrier 3 to tilt around the rotating shaft 22 until the opening of the receiving groove 31 faces downwards, thus achieving automatic material unloading. This mechanical linkage structure requires no additional power source, utilizing the traveling power of the circulating chain 2 to complete the tilting action. Furthermore, the tilting angle is controlled by the precision of the tooth meshing, ensuring a stable and reliable unloading process and preventing residual material.
[0035] The number of teeth N1 of the follower gear 32 is 17~100, and the tooth pitch of the flip rack 39 matches the module of the follower gear 32; the number of teeth N2 of the flip rack 39 is 0.4×N1≤N2≤2.0×N1. The lower limit of the number of teeth N1 ensures the root strength of the follower gear 32, while the upper limit avoids structural redundancy due to excessive gear size; the range of the number of teeth N2 limits the meshing stroke length of the flip rack 39, ensuring that the carrier 3 flips to or at least approaches the target angle, which is usually 180°, but can also be set to less than or greater than 180° according to actual needs. The matched module ensures uniform meshing linear velocity and contact stress between the follower gear 32 and the flip rack 39, reducing wear and extending service life.
[0036] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A self-stabilizing delivery device, characterized by, The utility model provides a kind of conveying device, including at least two parallelly arranged guide rails (1), at least two circulating chains (2) synchronously moving along the guide rail (1) and carrier (3) being rotatably connected with the circulating chain (2);The both ends of the carrier (3) are equipped with swing block (23), and the swing block (23) of both ends is respectively pivoted on the circulating chain (2);The carrier (3) has accommodating groove (31), when the carrier (3) is in stable position of minimum gravitational potential energy, the opening of the accommodating groove (31) is upward;The carrier (3) also has support wheel (33), and support rail (4) is arranged along the movement track of the support wheel (33), and the support rail (4) is supported below the support wheel (33).
2. The self-stabilizing delivery device of claim 1, wherein, The chain plate of the circulating chain (2) is fixedly provided with a rotating shaft (22), and a rotating hole is correspondingly formed in the swing block (23). The rotating shaft (22) is pivotally connected with the rotating hole, so that the carrier (3) can freely swing around the rotating shaft (22).
3. The self-stabilizing delivery device of claim 2, wherein, The accommodating groove (31) is in the shape of a long strip, and the top of the accommodating groove (31) is provided with an opening extending in the length direction. When the carrier (3) is in the stable and balanced position of minimum gravitational potential energy, the opening plane is horizontally upward, and the height of the opening plane is lower than the central axis of the rotating shaft (22).
4. The self-stabilizing delivery device of claim 2, wherein, The bottom of the both ends of the carrier (3) is spaced apart and provided with two support wheels (33) in the direction of travel, the top surface of the support rail (4) is in rolling contact with the bottom of the support wheel (33), forming a triangular limiting combination including one rotating shaft (22) and two support points to limit the swing freedom of the carrier (3).
5. The self-stabilizing delivery device of claim 2, wherein, The both ends of the carrier (3) are respectively fixedly provided with vertically arranged side plates (34), the support wheel (33) is rotatably installed on the inner side of the side plate (34) through an axle, and the rolling direction of the support wheel (33) is consistent with the direction of travel of the circulating chain (2).
6. The self-stabilizing delivery device of claim 2, wherein, The circulating chain (2) includes a plurality of chain links (24) hingedly connected at the head and tail, adjacent chain links (24) are rotatably connected through a pin shaft (26), and a roller (25) is rotatably sleeved on the pin shaft (26). The outer circumferential surface of the roller (25) is in rolling contact with the top surface of the guide rail (1), and the axis of the roller (25) is perpendicular to the direction of travel of the circulating chain (2).
7. The self-stabilizing delivery device of claim 6, wherein, The cross section of the guide rail (1) is in the shape of L, the guide rail (1) includes a support plate (12) arranged horizontally and a limiting plate (13) vertically fixedly connected to the outer side of the support plate (12), the top surface of the support plate (12) is in rolling contact with the bottom of the roller (25), and the inner side wall of the limiting plate (13) forms lateral limiting on the outer side of the chain link (24).
8. The self-stabilizing delivery device of any one of claims 1-7, wherein, At least one turnover station is arranged in the movement path of the circulating chain (2), and the support rail (4) supporting the support wheel (33) is not arranged in the turnover station. When the carrier (3) moves to the turnover station, the carrier (3) is automatically turned over.
9. The self-stabilizing delivery device of claim 8, wherein, One end of the carrier (3) is fixedly provided with a follow-up gear (32), and a turnover rack (39) is arranged along the running direction of the circulating chain (2) at the turnover station; when the carrier (3) moves to the turnover station, the follow-up gear (32) is engaged with the turnover rack (39), drives the carrier (3) to rotate, and makes the containing groove (31) open downward.
10. The self-stabilizing delivery device of claim 9, wherein, The number of teeth N1 of the follow-up gear (32) is 17-100, the pitch of the turnover rack (39) matches the modulus of the follow-up gear (32), and the number of teeth of the turnover rack (39) is N2, and 0.4×N1≤N2≤2.0×N1.