Magnetic suspension connection transmission line

Abstract

The invention relates to a magnetic suspension connection transmission line which comprises a rack, a magnetic suspension conveying mechanism, a belt conveying mechanism and a carrier, the magnetic suspension conveying mechanism, the belt conveying mechanism and the carrier are arranged on the rack, the belt conveying mechanism can be connected with the magnetic suspension conveying mechanism, and the carrier is conveyed by the magnetic suspension conveying mechanism to move. The carrier can flow back to the magnetic suspension conveying mechanism through the belt conveying mechanism, the belt conveying mechanism comprises a belt arranged in the conveying direction of the magnetic suspension conveying mechanism, and the magnetic suspension conveying device is characterized in that a magnetic attraction piece is arranged in the belt, and a magnetic piece capable of being matched with the magnetic attraction piece in an attraction mode is arranged at the bottom of the carrier. The transmission line has the advantages that the magnetic attraction part is arranged in the belt, the magnetic part is arranged at the bottom of the carrier, large friction force can be generated through attraction cooperation of the magnetic attraction part and the magnetic part, and therefore the carrier is more stable and reliable when driven by the belt to flow back, and the transmission line is simple in structure, low in cost, better in backflow effect and free of abrasion to the belt.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission lines, and in particular to a magnetic suspension connection transmission line. Background Art

[0002] The magnetic levitation shuttle transmission line combines the technologies of the magnetic levitation ring transmission line and the belt transmission line, making it much cheaper than the ring transmission line. However, compared to the belt transmission line, it has the advantages of high positioning accuracy and flexible control at the working position. In the existing technology, the main line of the magnetic levitation shuttle transmission line uses a motor to achieve positioning control of each carrier. To save costs, the return flow part uses a belt to drag the carrier back to its initial position. The belt return part in the existing technology uses the friction between the belt and the carrier to drag the carrier back, so the belt needs to be straight. Once the belt is too long, it will sag, resulting in reduced friction and return failure.

[0003] In order to solve the above technical problems, the Chinese utility model patent with patent number ZL202223568110.7 (authorization announcement number CN219098091U) discloses a lifting and reflux magnetic levitation hybrid drive conveying device, which includes a frame and a magnetic levitation slide assembly. The frame is correspondingly equipped with a magnetic levitation conveying mechanism and a belt conveying mechanism. A lifting and transferring mechanism 1 and a lifting and transferring mechanism 2 are respectively provided at the two ends of the magnetic levitation conveying mechanism and the belt conveying mechanism. The magnetic levitation slide assembly travels back and forth between the magnetic levitation conveying mechanism and the belt conveying mechanism through the lifting and transferring mechanism 1 and the lifting and transferring mechanism 2.

[0004] Although the above patent provides a rack 1 on the belt and a rack 2 at the bottom of the magnetic levitation slide assembly (also known as a carrier) for use with the rack 1, when the belt is running, the rack 1 and the rack 2 are fixed together, thereby driving the magnetic levitation slide assembly to operate, thereby reducing the probability of backflow failure. However, the above patent has the following limitations: if the rack 1 and the rack 2 are misaligned, it will cause wear on the belt. If used for a long time, the belt will be damaged, which will lead to backflow failure. Therefore, further improvement of the existing technology is needed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a magnetic suspension connection transmission line with more stable and reliable return flow in response to the above-mentioned prior art.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a magnetic levitation connecting transmission line, including a frame and a magnetic levitation conveying mechanism, a belt conveying mechanism and a carrier arranged on the frame, the belt conveying mechanism can be connected with the magnetic levitation conveying mechanism, the carrier is transported and moved by the magnetic levitation conveying mechanism, and the carrier can be returned to the magnetic levitation conveying mechanism through the belt conveying mechanism, the belt conveying mechanism includes a belt arranged along the conveying direction of the magnetic levitation conveying mechanism, and is characterized in that: a magnetic attraction part is provided in the belt, and a magnetic part that can cooperate with the suction force of the magnetic attraction part is provided at the bottom of the carrier.

[0007] Preferably, the magnetic attraction member is a metal wire made of a magnetic material, and the metal wire is embedded in the belt along the extending direction of the belt.

[0008] As a further improvement, the belt conveying mechanism further includes a motor and a reducer, the reducer is connected to the driving end of the motor, and the belt is sleeved on the power output shaft of the reducer.

[0009] In order to tension the belt and reduce the probability of backflow failure, the belt conveying mechanism also includes two tensioning pulleys arranged relatively above the power output shaft of the reducer. The belt is wound around the power output shaft of the reducer and passes through the side of each tensioning pulley to tighten the belt.

[0010] In order to realize the transmission of the vehicle, the magnetic levitation conveying mechanism includes a plurality of stators arranged side by side and spaced apart. Each stator is provided with a coil for driving the vehicle to move after power is supplied. The vehicle is provided with a position sensor, and each stator is provided with an encoder reader for reading the position signal of the position sensor. The coil of each stator is connected to a corresponding driver, and the driver is connected to the encoder reader on its corresponding stator.

[0011] Furthermore, the frame is provided with two first guide rails extending along the moving direction of the carrier and arranged opposite to each other, all the stators are arranged between the two first guide rails, and the carrier is slidably arranged on the first guide rails.

[0012] As a further improvement, the frame is further provided with two second guide rails arranged opposite to each other, the second guide rails are located below the first guide rail, and the second guide rails are arranged along the extension direction of the first guide rail, the carrier is slidably arranged on the second guide rails, and the belt is arranged between the two second guide rails.

[0013] In order to realize the connection between the belt conveyor mechanism and the magnetic levitation conveyor mechanism, preferably, the first guide rail is respectively provided with a third guide rail at both ends thereof, which can be connected one by one with the first guide rail, and a stator is also provided between the third guide rails, and an encoder reader is also provided on the stator. The frame is provided with a lifting mechanism that can realize the connection between the belt conveyor mechanism and the magnetic levitation conveyor mechanism, and the lifting mechanism includes a mounting plate for installing each third guide rail and a driving member for driving the mounting plate to move up and down. The mounting plate can be driven by the driving member to descend, thereby driving the third guide rail to move downward and dock with the second guide rail.

[0014] Compared with the prior art, the advantages of the present invention are: by arranging a magnetic attraction part in the belt and a magnetic part at the bottom of the carrier, the magnetic attraction part cooperates with the suction force of the magnetic part to generate a larger friction force, thereby making the carrier more stable and reliable when the belt is driven to reflux. The transmission line has a simple structure, low cost and better reflux effect, and will not cause wear on the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a magnetic suspension connection transmission line according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of some structures in ;

[0017] Figure 3 for Figure 2 Another perspective structural diagram;

[0018] Figure 4 This is a structural diagram of a lifting mechanism in an embodiment of the present invention;

[0019] Figure 5 This is a structural diagram of a belt conveyor mechanism in an embodiment of the present invention;

[0020] Figure 6 for Figure 5 Another perspective structural diagram;

[0021] Figure 7 for Figure 5 Another perspective structural diagram of . DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 7As shown, the magnetic levitation shuttle transmission line in this embodiment includes a frame 1 and a magnetic levitation conveying mechanism 2, a belt conveying mechanism 3, and a carrier 4 provided on the frame 1. The belt conveying mechanism 3 can be connected to the magnetic levitation conveying mechanism 2. The carrier 4 is transported and moved by the magnetic levitation conveying mechanism 2, and the carrier 4 can be returned to the magnetic levitation conveying mechanism 2 through the belt conveying mechanism 3. The belt conveying mechanism 3 includes a belt 31 arranged along the conveying direction of the magnetic levitation conveying mechanism 2. The belt 31 is provided with a magnetic attraction member (not shown in the figure). The bottom of the carrier 4 is provided with a magnetic member 40 that can cooperate with the attraction force of the magnetic attraction member. The carrier 4 in this embodiment is a trolley.

[0024] The magnetic member is a metal wire made of a magnetic material, and the metal wire is embedded in the inner part of the belt 31 along the extending direction of the belt 31. The metal wire in this embodiment is a steel wire, and the magnetic member 40 is a magnet.

[0025] like Figure 2 and Figure 3 As shown, the magnetic levitation conveying mechanism 2 in this embodiment includes a plurality of stators 22 arranged side by side and spaced apart. Each stator 22 is provided with a coil (not shown in the figure) for driving the vehicle 4 to move after being powered on. A position sensor 41 is provided on the vehicle 4. Each stator 22 is provided with an encoder reader 221 for reading the position signal of the position sensor 41. The coil of each stator 22 is correspondingly connected to a driver (not shown in the figure), and the driver is connected to the encoder reader 221 on its corresponding stator 22.

[0026] In addition, in order to achieve stable transmission of the carrier 4, the frame 1 is provided with two first guide rails 21 extending along the movement direction of the carrier 4 and arranged opposite to each other. All stators 22 are arranged between the two first guide rails 21, and the carrier 4 is slidably arranged on the first guide rails 21.

[0027] like Figures 5-7 As shown, the belt conveyor mechanism 3 also includes a motor 32, a reducer 33, and two tensioning pulleys 34 arranged opposite each other above the power output shaft 331 of the reducer 33. The reducer 33 is connected to the drive end of the motor 32, and the belt 31 is sleeved on the power output shaft 331 of the reducer 33. The belt 31 is wound around the power output shaft 331 of the reducer 33 and passes through the side of each tensioning pulley 34, thereby compressing the belt 31. Similarly, to ensure stable transportation of the carrier 4, the frame 1 is also provided with two second guide rails 35 arranged opposite each other. The second guide rails 35 are located below the first guide rail 21 and are arranged along the extension direction of the first guide rail 21. The carrier 4 slides on the second guide rails 35, and the belt 31 is arranged between the two second guide rails 35.

[0028] like Figure 4As shown, third guide rails 5 are provided at both ends of the first guide rail 21, each capable of docking with the first guide rail 21. A stator 22 is also provided between the third guide rails 5, and an encoder reader 221 is also provided on the stator 22. A lifting mechanism 6 is provided on the frame 1 to connect the belt conveyor mechanism 3 with the magnetic levitation conveyor mechanism 2. The lifting mechanism 6 includes a mounting plate 61 for mounting each third guide rail 5 and a driving member 62 for driving the mounting plate 61 up and down. The mounting plate 61 can be lowered under the drive of the driving member 62, thereby driving the third guide rail 5 to move downward and dock with the second guide rail 35. The driving member 62 in this embodiment is a drive motor, which is connected to the mounting plate 61 by a screw drive.

[0029] Each driver in this embodiment is electrically connected to the controller, and the current of each stator coil is controlled by the driver. Of course, the driving member 62 and the motor 32 are also electrically connected to the controller, so that the entire magnetic levitation connection transmission line is coordinated by a controller to control the position of each carrier and the operation of the return line and the main line.

[0030] The magnetic suspension connection transmission line in this embodiment can be composed of a Figure 2 The transmission unit shown can also be formed by connecting multiple transmission units. The specific number of transmission units is determined according to actual needs. It is only necessary to add lifting mechanisms at the beginning and end of the transmission line.

[0031] The working process of the magnetic suspension connection transmission line in this embodiment is as follows:

[0032] like Figure 1 As shown, the magnetic suspension conveying mechanism 2 located on the upper layer of the frame 1 is the main line, and the belt conveying mechanism 3 located on the lower layer of the frame 1 is the return line;

[0033] The working process of the main line is as follows: an encoder reader 221 is installed on the side of each stator, and a position sensor 41 (absolute magnetic scale in this embodiment) is attached to the carrier 4. When the carrier 4 moves on the main line, the encoder reader 221 can read the data of the position sensor 41 located thereon, and the driver can obtain the current position signal of the carrier 4 according to the data of the position sensor 41, and apply currents of different sizes and directions to the coils of the stator where the current carrier 4 is located to realize the control of the trolley. After a relay is formed between multiple stators, the movement and positioning of the carrier 4 on the entire main line can be realized. The carrier 4 can stop accurately at any position on the main line, thereby realizing flexible station setting, and cooperating with external tooling and functional units (robots, electric cylinders, pneumatic cylinders, manipulators, etc.) to achieve assembly, processing, etc.

[0034] The working process of the reflow line is as follows: Figure 1As shown, the leftmost side of the first guide rail 21 is marked as the head end, the rightmost side of the first guide rail 21 is marked as the tail end, the leftmost side of the second guide rail 35 is marked as the tail end, and the rightmost side of the first guide rail 21 is marked as the head end. The lifting mechanism 6 is used to realize the lifting of the carrier 4. The mounting plate 61 can be driven by the driving member to descend, thereby driving the third guide rail 5 connected to the tail end of the first guide rail 21 to move downward and connect with the head end of the second guide rail 35, and the stator coil on the third guide rail 5 is energized to The carrier 4 is pushed onto the belt 31, and the magnetic parts provided on the carrier 4 and the magnetic parts embedded in the belt 3 generate suction, thereby pulling the carrier 4 back until the carrier 4 moves to the tail end of the second guide rail 35. Similarly, the mounting plate 61 provided near the tail end of the second guide rail 35 can be driven up and down by the driving member, thereby driving the third guide rail 5 connected to the tail end of the second guide rail 35 to move up and connect with the head end of the first guide rail 21. At this time, the carrier 4 flows back to the first guide rail 21.

[0035] When the carrier 4 leaves the return line, the belt and the magnetic part will separate. Since the separation is gradual, the required force is very small and the belt can be separated by normal movement.

[0036] In the present specification and claims, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Because the embodiments disclosed herein can be arranged in various orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A magnetic levitation connecting transmission line, comprising a frame (1) and a magnetic levitation conveying mechanism (2), a belt conveying mechanism (3) and a carrier (4) arranged on the frame (1), wherein the belt conveying mechanism (3) can be connected to the magnetic levitation conveying mechanism (2), the carrier (4) is transported and moved by the magnetic levitation conveying mechanism (2), and the carrier (4) can be returned to the magnetic levitation conveying mechanism (2) through the belt conveying mechanism (3), the belt conveying mechanism (3) includes a belt (31) arranged along the conveying direction of the magnetic levitation conveying mechanism (2), and is characterized in that: A magnetic attraction component is provided in the belt (31), and a magnetic component (40) capable of cooperating with the attraction force of the magnetic attraction component is provided at the bottom of the carrier (4).

2. The magnetic suspension connection transmission line according to claim 1, characterized in that: The magnetic attraction member is a metal wire made of a magnetic material, and the metal wire is embedded in the interior of the belt (31) along the extending direction of the belt (31).

3. The magnetic suspension connection transmission line according to claim 1, characterized in that: The belt conveying mechanism (3) further comprises a motor (32) and a reducer (33), wherein the reducer (33) is connected to the driving end of the motor (32), and the belt (31) is sleeved on the power output shaft (331) of the reducer (33).

4. The magnetic suspension connection transmission line according to claim 3, characterized in that: The belt conveying mechanism (3) further comprises two tensioning wheels (34) arranged relatively above the power output shaft (331) of the reducer (33); the belt (31) is wound around the power output shaft (331) of the reducer (33) and passes through the side of each tensioning wheel (34), thereby tightening the belt (31).

5. The magnetic suspension connection transmission line according to any one of claims 1 to 4, characterized in that: The magnetic levitation conveying mechanism (2) comprises a plurality of stators (22) arranged side by side and spaced apart. Each stator (22) is provided with a coil for driving a carrier (4) to move when powered. The carrier (4) is provided with a position sensor (41). Each stator (22) is provided with an encoder reader (221) for reading a position signal from the position sensor (41). The coil of each stator (22) is correspondingly connected to a driver, and the driver is connected to the encoder reader (221) on its corresponding stator (22).

6. The magnetic suspension connection transmission line according to claim 5, characterized in that: The frame (1) is provided with two first guide rails (21) extending along the moving direction of the carrier (4) and arranged opposite to each other, all stators (22) are arranged between the two first guide rails (21), and the carrier (4) is slidably arranged on the first guide rails (21).

7. The magnetic suspension connection transmission line according to claim 6, characterized in that: The frame (1) is further provided with two second guide rails (35) arranged opposite to each other, the second guide rails (35) are located below the first guide rail (21), and the second guide rails (35) are arranged along the extension direction of the first guide rail (21), the carrier (4) is slidably arranged on the second guide rails (35), and the belt (31) is arranged between the two second guide rails (35).

8. The magnetic suspension connection transmission line according to claim 7, characterized in that: The first guide rail (21) is provided with third guide rails (5) at both ends thereof, each of which can be docked with the first guide rail (21). A stator (22) is also provided between the third guide rails (5), and an encoder reader (221) is also provided on the stator (22). The frame (1) is provided with a lifting mechanism (6) capable of connecting the belt conveyor mechanism (3) with the magnetic suspension conveyor mechanism (2). The lifting mechanism (6) includes a mounting plate (61) for mounting each third guide rail (5) and a driving member (62) for driving the mounting plate (61) to move up and down. The mounting plate (61) can be driven by the driving member (62) to descend, thereby driving the third guide rail (5) to move downward and dock with the second guide rail (35).

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