Tensioning mechanism of intelligent suspension conveying system

Abstract

The invention provides a tensioning mechanism of an intelligent suspension conveying system, which belongs to the technical field of suspension conveying equipment and comprises a fixed frame, a fixed track, a tensioning track, a movable suspension and an electric push rod. The tensioning track comprises a bent track and two straight tracks located at the two ends of the bent track respectively, the two straight tracks are connected into the two fixed tracks in a sliding mode respectively, and the bent track is movably connected to the movable suspension through a movable connecting piece. The tensioning rail is arranged to be the bent rail and the straight rail which are separated from each other, the vibration unit is arranged on the bent rail, when the conveying chain is started in the initial stage, the vibration unit can be started, the bent rail can vibrate, the contact face of the conveying chain and the bent rail can be periodically and instantly separated through high-frequency vibration, static friction is effectively overcome, and the service life of the conveying chain is prolonged. The friction force generated when the conveying chain is started can be obviously reduced, then the instantaneous starting power is reduced, and the tensile deformation of the conveying chain can be reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of suspension conveying equipment, and particularly relates to a tensioning mechanism of an intelligent suspension conveying system. BACKGROUND

[0002] The intelligent suspension conveying line is an advanced logistics solution for transporting materials by using an aerial rail system. It carries workpieces, components or cargos by a lifting tool and runs along a preset overhead track efficiently. The core "intelligence" is reflected in the integration of sensors, automatic control systems and software platforms, which can realize accurate positioning of materials, real-time monitoring, dynamic optimization of paths, automatic sorting and sequencing, data collection and analysis, and seamless connection with production rhythm or warehouse systems. It is particularly suitable for modern industrial scenes such as automobile manufacturing, painting, warehousing logistics and home appliance assembly that require continuous, automated and traceable material flow.

[0003] The tensioning mechanism of the suspension conveying line is a core component for ensuring stable and reliable operation of the system. Its main function is to automatically compensate for the length change of the chain due to wear, thermal expansion and contraction or load change, and to maintain the constant tension required for the operation of the chain.

[0004] During the conveying process, the conveying chain in the conveying line will generate friction with the track. Among them, the curved section (bent rail) of the track is the position with the largest and most concentrated friction in the suspension conveying line. When the conveying chain starts, the static friction is large, resulting in a large instantaneous starting power, and often causing the conveying chain to be stretched, which reduces the conveying accuracy of the conveying chain. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present application is to provide a tensioning mechanism of an intelligent suspension conveying system to at least partially solve the problems raised in the background art.

[0006] The technical scheme adopted by the present application is as follows: the present application provides a tensioning mechanism of an intelligent suspension conveying system, comprising: a fixed frame, two sides of which are respectively provided with fixed rails parallel to each other; a tensioning rail, both ends of which are respectively slidably connected in two fixed rails; a mobile suspension frame, which is arranged above the tensioning rail and connected to the tensioning rail, and an electric push rod is arranged on the fixed frame and connected to the mobile suspension frame; wherein the tensioning rail comprises a curved rail and two straight rails respectively located at both ends of the curved rail, the two straight rails are respectively slidably connected in the two fixed rails, the curved rail is movably connected to the mobile suspension frame through a movable connecting piece, and a vibration unit is arranged on the curved rail to enable the curved rail to vibrate.

[0007] Further, a plurality of spray pipes are arranged on the curved track, the plurality of spray pipes are uniformly distributed along the curved track, and output ends of the spray pipes extend into the curved track.

[0008] Further, a tensioning track is arranged on the curved track, and the tensioning track is arranged on the curved track in a manner of being capable of being in contact with the curved track.

[0009] Further, lubricating plates are arranged on both sides and the bottom of the inner wall of the curved track.

[0010] Further, the lubricating plates comprise graphite plates.

[0011] Further, an active gap is arranged between the curved track and the straight track.

[0012] Further, a fixed connecting piece is arranged between the straight track and the moving suspension, and the straight track is fixedly connected to the moving suspension through the fixed connecting piece.

[0013] Further, the active connecting piece comprises two connecting seats, the two connecting seats are respectively connected to the curved track and the moving suspension, and an elastic piece is connected between the two connecting seats.

[0014] Further, two parallel support rails are arranged on the fixed frame, and the moving suspension is slidingly connected to the support rails.

[0015] Further, two connecting guide wheels are connected to each side of the moving suspension, and the connecting guide wheels roll on the corresponding side of the support rail.

[0016] Beneficial effects: 1. By arranging the tensioning track as the curved track and the straight track which are separated from each other, and arranging the vibration unit on the curved track, when the conveying chain is started initially, the vibration unit can be started to make the curved track vibrate, the high-frequency vibration can make the contact surface of the conveying chain and the curved track periodically and instantaneously separate, effectively overcome the static friction, significantly reduce the friction when the conveying chain is started, further reduce the instantaneous power when the conveying chain is started, and reduce the tensile deformation of the conveying chain.

[0017] 2. By arranging a plurality of spray pipes on the curved track, when the conveying chain enters the curved track, the chain link generates bending deformation under the constraint of the track, and the driving connecting shaft assembly generates relative rotation. In this process, the wear area which is shielded in the linear running stage is exposed to the contact position again, the external high-pressure gas supply device delivers high-pressure gas through the gas supply pipeline, and sprays the high-pressure gas into the interior of the curved track through the spray pipe, to clean the conveying chain and clean the exposed area, thereby reducing the wear of the chain. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure diagram of a tensioning mechanism of an intelligent suspension conveying system is provided for an embodiment of the present application. Figure 2 A side view diagram of a tensioning mechanism of an intelligent suspension conveying system is provided for an embodiment of the present application. Figure 3 An installation position diagram of a moving suspension in a tensioning mechanism of an intelligent suspension conveying system is provided for an embodiment of the present application. Figure 4 A structure diagram of a tensioning track in a tensioning mechanism of an intelligent suspension conveying system is provided for an embodiment of the present application. Figure 5 A structure diagram of a movable connecting piece in a tensioning mechanism of an intelligent suspension conveying system is provided for an embodiment of the present application. Figure 6 A structure diagram of a movable connecting piece in a tensioning mechanism of an intelligent suspension conveying system is provided for an embodiment of the present application. Figure 3 An enlarged diagram of position A in the above figure. Figure 7 An installation position diagram of a lubricating plate in a tensioning mechanism of an intelligent suspension conveying system is provided for an embodiment of the present application.

[0019] 1, fixed frame; 11, support guide rail; 2, fixed track; 3, tensioning track; 31, curved track; 32, straight track; 33, lubricating plate; 301, movable gap; 4, moving suspension; 41, connecting guide wheel; 5, electric push rod; 51, tension and compression force sensor; 6, vibration unit; 7, fixed connecting piece; 8, movable connecting piece; 81, connecting seat; 82, elastic piece; 9, blowing pipe.

[0020] The accompanying drawings are used to provide a further understanding of the embodiments and constitute a part of the specification, which are used together with the embodiments to explain and are not used to limit the embodiments. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection.

[0022] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments.

[0023] With reference to the drawings Figure 1 As shown in the drawings, the embodiment of the present application provides a tensioning mechanism of an intelligent suspension conveying system, which comprises a fixed frame 1, a fixed track 2 and a tensioning track 3.

[0024] The fixed track 2 is provided with two, and the two fixed tracks 2 are parallel to each other and are respectively fixed on the bottom of the fixed frame 1 on both sides, and the tensioning track 3 is arranged between the two fixed tracks 2, and the two ends of the tensioning track 3 are respectively slidably connected to the two fixed tracks 2, and the tensioning track 3 can slide along the length direction of the fixed track 2.

[0025] It can be understood that the conveying chain is introduced into the tensioning track 3 through the fixed track 2 on one side, and after turning through the tensioning track 3, it is introduced into the fixed track 2 on the other side.

[0026] In this way, by moving the tensioning track 3 away from the fixed track 2, the conveying chain can be tensioned, and by adjusting the moving distance of the tensioning track 3, the tensioning degree of the conveying chain can be adjusted.

[0027] With reference to the drawings Figure 3 As shown in the drawings, the fixed frame 1 is provided with two parallel support rails 11, and the length direction of the support rail 11 is consistent with the moving direction of the tensioning track 3, and the upper side of the tensioning track 3 is provided with a moving suspension frame 4, and the moving suspension frame 4 is slidably connected to the support rail 11, so that the moving suspension frame 4 can slide along the support rail 11, and the sliding direction of the moving suspension frame 4 is consistent with the tensioning direction of the tensioning track 3.

[0028] The tensioning track 3 is connected to the moving suspension frame 4, at this time, the tensioning track 3 is connected to the support rail 11 through the moving suspension frame 4, and the tensioning track 3 is suspended and supported by the support rail 11.

[0029] In a specific embodiment, the two sides of the moving suspension frame 4 are connected with two connecting guide wheels 41, and the connecting guide wheels 41 roll on the corresponding side of the support rail 11, so that the moving suspension frame 4 can slide along the support rail 11 through the connecting guide wheels 41, and the sliding friction is converted into rolling friction through the connecting guide wheels 41, thereby reducing the frictional resistance.

[0030] Further, the fixed frame 1 is provided with an electric push rod 5, and the extension direction of the extension end of the electric push rod 5 is consistent with the tensioning direction of the tensioning track 3, and the extension end of the electric push rod 5 is connected with the moving suspension frame 4.

[0031] In this way, the electric push rod 5 pushes the tensioning track 3 to move through the moving suspension frame 4, when the extension end of the electric push rod 5 extends outward, the tensioning track 3 is pushed away from the fixed track 2, and the conveying chain can be tensioned, when the extension end of the electric push rod 5 is retracted inward, the tensioning track 3 is pulled towards the fixed track 2, and the tensioning force of the conveying chain is reduced.

[0032] In combination Figure 3 And Figure 6 As shown in the figure, the telescopic end of the electric push rod 5 is provided with a tension and pressure sensor 51, one end of the tension and pressure sensor 51 is connected to the telescopic end of the electric push rod 5, and the other end of the tension and pressure sensor 51 is connected with the moving suspension 4, when the conveying chain is tensioned by the tensioning track 3, the conveying chain will exert pressure on the tensioning track 3, and the pressure acts on the tension and pressure sensor 51 through the moving suspension 4, so that the tension and pressure sensor 51 can detect the tensioning force of the conveying chain in real time.

[0033] The application also includes a control unit, and the tension and pressure sensor 51 and the electric push rod 5 are signal connected with the control unit.

[0034] In this way, according to the tensioning force value of the conveying chain detected by the tension and pressure sensor 51 in real time, the control unit controls the extension or contraction of the electric push rod 5 and controls the extension or contraction distance, when the tensioning force is insufficient, the telescopic end of the electric push rod 5 is extended, so that the tensioning track 3 is moved away from the fixed track 2, and the conveying chain can be tensioned, and by adjusting the extension distance of the electric push rod 5, the conveying chain is tensioned to a specified range, when the tensioning force is too high, the telescopic end of the electric push rod 5 is retracted, so that the tensioning track 3 is moved towards the fixed track 2, and the tensioning force of the conveying chain is reduced, and by adjusting the retraction distance of the electric push rod 5, the tensioning force of the conveying chain is reduced to a specified range.

[0035] By setting the tension and pressure sensor 51 to detect the tensioning force value of the conveying chain in real time, and using the control unit to intelligently control the electric push rod 5, the tensioning force of the conveying chain is automatically adjusted.

[0036] In combination Figure 2 And Figure 4 As shown in the figure, the tensioning track 3 includes a curved track 31 and two straight tracks 32, the two straight tracks 32 are parallel to each other and are located at two ends of the curved track 31 respectively, and the two straight tracks 32 are slidingly connected in the two fixed tracks 2 respectively, by adjusting the position of the curved track 31, the tensioning force of the conveying chain is adjusted, and when the position of the curved track 31 is adjusted again, the straight track 32 slides along the fixed track 2 synchronously, which plays a role of connecting the curved track 31 and the fixed track 2 and maintaining the continuous conveying of the conveying chain.

[0037] Further, the curved track 31 and the straight track 32 are provided with an active gap 301, so that the curved track 31 and the straight track 32 are not connected with each other.

[0038] In specific embodiments, the movable suspension 4 is movably connected to the curved track 31 through a movable connecting piece 8, and is fixedly connected to the straight track 32 through a fixed connecting piece 7.

[0039] At this time, the movable suspension 4 can drag the curved track 31 and the straight track 32 to move synchronously through the fixed connecting piece 7 and the movable connecting piece 8, and the curved track 31 can move independently due to the independent connection of the movable suspension 4 through the movable connecting piece 8.

[0040] Further, the curved track 31 is provided with a vibration unit 6, which can vibrate the curved track 31 under the drive of the vibration unit 6, and the vibration is buffered through the movable connecting piece 8, which can reduce the further transmission of the vibration.

[0041] Therefore, when the conveying chain is started, the vibration unit 6 can be started to make the curved track 31 vibrate, and the high-frequency vibration can make the contact surface of the conveying chain and the curved track 31 periodically and instantaneously separate, effectively overcome the static friction, significantly reduce the friction when the conveying chain is started, further reduce the instantaneous power when the conveying chain is started, and reduce the tensile deformation of the conveying chain.

[0042] In optional embodiments, the vibration unit 6 includes a vibration motor.

[0043] In combination Figure 7 As shown, the inner wall of the curved track 31 is provided with a lubricating plate 33 on both sides and the bottom for reducing friction.

[0044] In optional embodiments, the lubricating plate 33 includes any one of a graphite plate or a polytetrafluoroethylene plate, and preferably the lubricating plate 33 adopts the graphite plate. When the conveying chain contacts and rubs against the graphite plate, the graphite can form a lubricating layer between the conveying chain and the graphite plate, which plays a role in reducing friction. In addition, compared with the polytetrafluoroethylene plate, the graphite plate has higher high-temperature resistance and aging resistance. With the conveying and friction of the conveying chain, the temperature will rise, and the graphite plate will not deform due to high temperature caused by friction, and will not age, crack, and peel off after long-term use.

[0045] In combination Figure 5 As shown, the movable connecting piece 8 includes two connecting seats 81 connected to the curved track 31 and the movable suspension 4, respectively, and an elastic member 82 connected between the two connecting seats 81. Under the action of the elastic member 82, the curved track 31 can move independently compared with the straight track 32, and when the curved track 31 vibrates, the further transmission of the vibration can be reduced to avoid affecting the device.

[0046] In an alternative embodiment, the elastic member 82 comprises a U-shaped elastic sheet, and the two ends of the elastic sheet are connected to the two connecting seats 81 respectively.

[0047] In combination Figure 1 And Figure 4 As shown in the figure, a plurality of blowing pipes 9 are arranged on the curved track 31, the plurality of blowing pipes 9 are uniformly distributed along the curved track 31, the output ends of the blowing pipes 9 extend to the inside of the curved track 31, and the blowing pipes 9 are connected with the external high-pressure gas supply equipment through the gas supply pipeline.

[0048] When the conveying chain enters the curved track 31, the chain links are bent and deformed under the constraint of the track, and the driving connecting shaft assembly is relatively rotated. In this process, the wear area that is shielded in the straight running stage is exposed to the contact position again, the external high-pressure gas supply equipment delivers high-pressure gas through the gas supply pipeline, and the high-pressure gas is blown into the inside of the curved track 31 by the blowing pipes 9, so as to clean the conveying chain and clean the re-exposed area, thereby reducing the wear of the chain.

[0049] The working principle of the present application is as follows: the electric push rod 5 pushes the tension track 3 to move through the movement of the suspension 4, when the telescopic end of the electric push rod 5 is extended outward, the tension track 3 is pushed away from the fixed track 2, and the conveying chain can be tensioned, when the telescopic end of the electric push rod 5 is retracted inward, the tension track 3 is pulled towards the fixed track 2, and the tension of the conveying chain is reduced, according to the tension value of the conveying chain detected by the tension sensor 51 in real time, the control unit controls the extension or retraction of the electric push rod 5, and controls the extension or retraction distance, when the tension is insufficient, the telescopic end of the electric push rod 5 is extended, so that the tension track 3 is moved away from the fixed track 2, and the conveying chain can be tensioned, and by adjusting the extension distance of the electric push rod 5, the conveying chain is tensioned to a specified range, when the tension is too high, the telescopic end of the electric push rod 5 is retracted, so that the tension track 3 is moved towards the fixed track 2, and the tension of the conveying chain is reduced, and by adjusting the retraction distance of the electric push rod 5, the tension of the conveying chain is reduced to a specified range.

[0050] When the conveying chain is started initially, the vibration unit 6 can be started, so that the curved track 31 can vibrate, the high-frequency vibration can cause the contact surface of the conveying chain and the curved track 31 to be periodically separated instantaneously, effectively overcome the static friction, significantly reduce the friction when the conveying chain is started, and further reduce the instantaneous power of the start, and the tensile deformation of the conveying chain can be reduced.

[0051] When the conveying chain enters the curved track 31, the chain links are deformed in bending under the constraint of the track, and the driving connecting shaft assembly is relatively rotated. In this process, the wear area that is shielded in the straight running stage is exposed to the contact position again, and the external high-pressure gas supply device delivers high-pressure gas through the gas supply pipeline and sprays it into the interior of the curved track 31 through the spray pipe 9, thereby cleaning the conveying chain and cleaning the exposed area to reduce the wear of the chain.

[0052] In summary, in the above embodiments, the tensioning track 3 is arranged as the curved track 31 and the straight track 32 that are separated from each other, and the vibration unit 6 is arranged on the curved track 31. When the conveying chain is initially started, the vibration unit 6 is started to enable the curved track 31 to vibrate. The high-frequency vibration enables the contact surface of the conveying chain and the curved track 31 to be periodically and instantaneously separated, effectively overcoming the static friction, thereby significantly reducing the friction when the conveying chain is started, further reducing the instantaneous power when the conveying chain is started, and reducing the tensile deformation of the conveying chain.

[0053] When the conveying chain enters the curved track 31, the chain links are deformed in bending under the constraint of the track, and the driving connecting shaft assembly is relatively rotated. In this process, the wear area that is shielded in the straight running stage is exposed to the contact position again, and the external high-pressure gas supply device delivers high-pressure gas through the gas supply pipeline and sprays it into the interior of the curved track 31 through the spray pipe 9, thereby cleaning the conveying chain and cleaning the exposed area to reduce the wear of the chain.

[0054] It should be noted that the relational terms herein such as first and second and the like are used only to differentiate one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In addition, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed or inherent to such a process, method, article or device.

[0055] The above describes the embodiments, which are not limited, and the drawings only show one of the embodiments, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by this, without departing from the creative purpose, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope.

Claims

1. A tensioning mechanism for an intelligent suspended conveyor system, characterized by, The utility model relates to a kind of tensioning track and movable suspension frame, including: Fixed frame (1), two sides are equipped with mutually parallel fixed rail (2) respectively; Tensioning rail (3), two ends are slid in two described fixed rail (2) respectively; Movable suspension frame (4) is set and is connected to the top of described tensioning rail (3), and the fixed frame (1) is equipped with telescopic end and the electric push rod (5) of connection of described movable suspension frame (4); Wherein, the tensioning rail (3) includes curved rail (31) and two straight rails (32) respectively located at the two ends of the curved rail (31), two described straight rails (32) are slidably connected in two described fixed rail (2), and the curved rail (31) is movably connected to the movable suspension frame (4) by movable connecting piece (8), and the curved rail (31) is equipped with vibration unit (6), so that the curved rail (31) can vibrate.

2. The tensioning mechanism of the intelligent suspended conveyor system according to claim 1, characterized in that: A plurality of blow pipes (9) are provided on the curved rail (31), and the plurality of blow pipes (9) are uniformly distributed along the curved rail (31), and the output end of the blow pipe (9) extends into the curved rail (31).

3. The tensioning mechanism for an intelligent suspended conveyor system of claim 1, wherein: The telescopic end of the electric push rod (5) is provided with a tension and pressure sensor (51) for real-time detection of the pressure received by the tensioning rail (3).

4. The tensioning mechanism for an intelligent suspended conveyor system of claim 1, wherein: The inner wall of the curved rail (31) is provided with lubricating plates (33) on both sides and the bottom for reducing friction.

5. The tensioning mechanism of the intelligent suspended conveyor system according to claim 4, characterized in that: The lubricating plates (33) include graphite plates.

6. The tensioning mechanism for an intelligent suspended conveyor system of claim 1, wherein: An active gap (301) is provided between the curved rail (31) and the straight rail (32).

7. The tensioning mechanism for an intelligent suspended conveyor system of claim 1, wherein: A fixed connecting piece (7) is provided between the straight rail (32) and the movable suspension frame (4), and the straight rail (32) is fixedly connected to the movable suspension frame (4) by the fixed connecting piece (7).

8. The tensioning mechanism for an intelligent suspended conveyor system of claim 1, wherein: The movable connecting piece (8) includes two connecting seats (81), and the two connecting seats (81) are connected to the curved rail (31) and the movable suspension frame (4), respectively.

9. The tensioning mechanism for an intelligent suspended conveyor system of claim 1, wherein: The fixed frame (1) is provided with two mutually parallel support rails (11), and the movable suspension frame (4) is slidably connected to the support rails (11).

10. The tensioning mechanism of the intelligent suspended conveyor system according to claim 9, characterized in that: Two connecting guide wheels (41) are connected to both sides of the movable suspension frame (4), and the connecting guide wheels (41) roll on the corresponding side of the support rails (11).

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