Circulating mobile power supply device and power supply method for mobile equipment on production line

Abstract

The invention provides a circulating moving power supply device and a power supply method for moving equipment on a production line. The power supply device comprises a rack, an annular circulating moving mechanism arranged on the rack and an annular sliding contact line fixedly arranged on the rack. The annular slide wire is connected with a power supply and is arranged on the periphery of a moving path of the annular circulating moving mechanism; a plurality of current collectors are arranged at the moving end of the annular circulating moving mechanism, and an electric brush on each current collector is in sliding contact with the annular sliding contact line and outputs stable voltage for supplying power to a load; the target test equipment does not need to be moved away from the production line, the equipment on the production line can be synchronously and movably supplied with power for testing, and the test efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply devices, and particularly to a circulating mobile power supply device and a power supply method for mobile devices on a production line. Background Art

[0002] For the aging test of printers, the conventional test method is off-line testing. Specifically, workers manually move the printer away from the mobile main production line and use a fixed 220V alternating current to test the printer. The test efficiency is very low, the test cycle is long, and a large amount of manpower is consumed.

[0003] Therefore, there is an urgent need for a circulating mobile power supply device and a power supply method for mobile devices on a production line, which can test the synchronous mobile power supply of the devices on the production line without moving the target test device away from the production line, and can greatly improve the test efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a circulating mobile power supply device and a power supply method for mobile devices on a production line, aiming to solve the technical problem of low test efficiency caused by the inability to supply power following the devices during the test on the production line.

[0005] To achieve the above purpose, in the first aspect, the present invention provides a circulating mobile power supply device, including: a frame, a circular circulating mobile mechanism arranged on the frame, and a circular sliding contact wire fixedly arranged on the frame;

[0006] The circular sliding contact wire is connected to a power supply and is arranged on the periphery of the moving path of the circular circulating mobile mechanism; a plurality of current collectors are arranged on the moving end of the circular circulating mobile mechanism, and the brushes on each current collector are slidably in contact with the circular sliding contact wire and output a stable voltage for supplying power to a load.

[0007] As a further improvement of the above solution, the current collector is arranged on the moving end of the circular circulating mobile mechanism through a slider assembly. Correspondingly, a circular slide rail matching the moving path of the circular circulating mobile mechanism is arranged on the frame, and the slider assembly is correspondingly arranged on the circular slide rail;

[0008] And the circular circulating mobile mechanism, the circular slide rail, and the circular sliding contact wire are sequentially arranged at intervals and parallel to each other from inside to outside.

[0009] As a further improvement of the above solution, the current collector is arranged on the slider assembly through a support frame; a socket is arranged on the support frame for the target test device moving on the production line to be plugged in, and the power terminals in the socket are connected to the corresponding current collector.

[0010] As a further improvement of the above solution, the annular circulating movement mechanism includes a driving motor and a driving sprocket arranged at one end of the frame, a driven sprocket arranged at the other end of the frame, and a transmission chain wound between the driving sprocket and the driven sprocket;

[0011] The driving motor is drivingly connected to the driving sprocket, and the plane where the transmission chain is located is parallel to the upper plane of the frame. The transmission chain constitutes the mobile end of the annular circulating movement mechanism.

[0012] As a further improvement of the above solution, the slider assembly is arranged on the transmission chain through a connecting buckle.

[0013] As a further improvement of the above solution, the slider assembly includes a slider support plate and guide rollers arranged on the bottom surface of the slider support plate. The guide rollers are arranged in pairs at intervals and are used for slidably clamping on the annular slide rail;

[0014] One end of the upper surface of the slider support plate is fixed with the current collector, and the other end is connected to the connecting buckle through a screw, so that the current collector moves synchronously with the transmission chain.

[0015] As a further improvement of the above solution, the model of the current collector is selected as the combined single-head current collector JDS1 type. Preferably, its brush contact pressure is 3.5N, the current can reach 40A, and the left-right and up-down offset is within + / -15mm.

[0016] As a further improvement of the above solution, the connecting buckle includes a first L-shaped connecting piece and a second L-shaped connecting piece. The horizontal side of the first L-shaped connecting piece is connected to the transmission chain, the vertical side of the first L-shaped connecting piece is connected to the vertical side of the second L-shaped connecting piece, and a waist-shaped hole with a preset length is arranged on the horizontal side of the second L-shaped connecting piece for slidably connecting with the slider assembly.

[0017] As a further improvement of the above solution, a preset gap is arranged between the lower surface of the horizontal side of the second L-shaped connecting piece and the upper surface of the slider assembly;

[0018] The screw passes through the waist-shaped hole and is connected to the slider assembly through a thread pair, and a locking nut is arranged on the screw. The locking nut is arranged in the preset gap.

[0019] As a further improvement of the above solution, the power supply includes an isolation transformer, which is used to connect to a 380V AC power supply and output 220V voltage.

[0020] Second aspect, the present invention also provides a power supply method for a mobile device on a production line, including a cyclic mobile power supply device as provided in the first aspect. The steps of the power supply method include:

[0021] S1. Horizontally arrange this cyclic mobile power supply device inside the production line, and make the moving direction of its straight segment consistent with the moving direction of the production line;

[0022] S2. Adjust the moving speed of the annular cyclic mobile mechanism to be consistent with the moving speed of the production line, so that the two move synchronously;

[0023] S3. When the device on the production line moves to the first working position of the position of this cyclic mobile power supply device, connect the power plug of the device to the current collector at the corresponding position to obtain power supply;

[0024] S4. The production line and the annular cyclic mobile mechanism move synchronously, drive the device to the second working position for testing; after the testing is completed, then synchronously move the device to the third working position, and then unplug the power plug of the device. The device continues to move on the production line, and the corresponding current collector moves cyclically;

[0025] S5. Repeat steps S3 and S4 to supply power to all devices on the production line in sequence.

[0026] Since the present invention adopts the above technical solutions, the beneficial effects of the present application are as follows:

[0027] 1. A cyclic mobile power supply device provided by the present invention includes: a frame, an annular cyclic mobile mechanism arranged on the frame, and an annular sliding contact wire fixedly arranged on the frame; the annular sliding contact wire is connected to a power supply and is arranged on the periphery of the moving path of the annular cyclic mobile mechanism; a plurality of current collectors are arranged at the mobile end of the annular cyclic mobile mechanism, and the electric brushes on each current collector can slidably contact the annular sliding contact wire and output a stable voltage for supplying power to a load; in the present invention, through a dynamic contact power supply structure, the device under test can obtain power uninterruptedly within a preset moving speed range. Compared with the traditional method of moving the device under test away from the production line and powering it on at a fixed power source, the cyclic mobile power supply device provided by the present invention does not need to move the device under test away from the production line. Only by horizontally arranging the cyclic mobile power supply device parallel to the production line and making the annular cyclic mobile mechanism and the production line move synchronously, it is possible to realize synchronous mobile power supply for the moving device under test on the production line, thereby greatly improving the testing efficiency;

[0028] Meanwhile, in the present invention, a circular layout is adopted to make the power supply system occupy a small area, which is particularly suitable for the transformation of automated production lines with limited space. In addition, by increasing the number of collectors in parallel, a maximum power output of 120 kW can be achieved, supporting parallel power supply of multiple voltage levels (48V - 380V), so that the present invention has good compatibility and expandability. The present invention has passed continuous operation tests for more than 72 hours, and key indicators such as voltage stability and temperature rise control meet the national standard requirements.

[0029] 2. The present invention also provides a power supply method for mobile devices on a production line. Through the closed-loop speed matching control of the production line and this circulating mobile power supply device, the device under test on the production line can continuously obtain power within a preset moving speed range. At the same time, the multi-station relay power supply mode enables the device to be tested with power throughout the process from the first station to the third station. Compared with the traditional test of moving the device off the production line to a fixed power source, the test efficiency is greatly improved, and since there is no need to move the original production line, the labor intensity of the operator can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0031] Figure 1 A top view schematic diagram of a circulating mobile power supply device disclosed by the present invention;

[0032] Figure 2 A front view schematic diagram of a circulating mobile power supply device disclosed by the present invention;

[0033] Figure 3 For Figure 1 II-direction partial enlarged schematic diagram of

[0034] Figure 4 For Figure 2 I-direction partial enlarged schematic diagram of

[0035] Figure 5 A side view schematic diagram of a circulating mobile power supply device disclosed by the present invention;

[0036] Figure 6 A top view schematic diagram of a circulating mobile power supply device arranged in parallel with a production line disclosed by the present invention.

[0037] Reference Signs:

[0038] 1. Frame; 2. Ring-shaped cyclic moving mechanism; 21. Driving motor; 22. Driving sprocket; 23. Driven sprocket; 24. Transmission chain; 3. Ring-shaped sliding contact line; 4. Current collector; 41. Brush; 5. Slide block assembly; 51. Slide block support plate; 52. Guide roller; 6. Ring-shaped slide rail; 7. Support frame; 8. Connecting buckle; 81. First L-shaped connecting piece; 82. Second L-shaped connecting piece; 83. Kidney-shaped hole; 9. Socket; 10. Production line; 11. Equipment.

[0039] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that all directional indications (such as up, down...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0043] Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0044] Embodiment 1

[0045] See Figures 1-6 , the present invention provides a cyclic moving power supply device, including: a frame 1, a ring-shaped cyclic moving mechanism 2 provided on the frame 1, and a ring-shaped sliding contact line 3 fixedly provided on the frame 1;

[0046] The annular sliding contact wire 3 is connected to a power supply and is arranged on the periphery of the moving path of the annular circulating moving mechanism 2; a plurality of current collectors 4 are arranged on the moving end of the annular circulating moving mechanism 2, and the brushes 41 on each current collector 4 are slidably contacted with the annular sliding contact wire 3 to output a stable voltage for supplying power to a load;

[0047] Specifically, in this embodiment, the frame 1 includes a support platform and a plurality of legs arranged on the bottom surface of the support platform, and the annular sliding contact wire 3 is arranged on the support platform through an annular frame;

[0048] The current collector 4 is the main component for collecting power. In this embodiment, an elastic structure is adopted, which includes two brushes 41. Both of the two brushes 41 are in contact with the sliding contact wire. The setting of the elastic structure enables good contact with the sliding contact wire in both the straight section and the arc section, so that each current collector 4 can obtain a stable output voltage to supply power to the corresponding load;

[0049] The sliding contact wire is selected as a C-type high-protection IP-grade copper core material with a cross-sectional area of 10 square millimeters, which can adapt to a large contact current; correspondingly, the current collector 4 is selected as a combined single-head current collector 4JDS1 type, the contact pressure of the brush 41 is 3.5N, the current can reach 40A, and the left-right and up-down offsets are within + / -15mm; it can effectively ensure continuous good contact between the current collector 4 and the sliding contact wire, and avoid problems such as no voltage output and instantaneous sparking;

[0050] In the present invention, through a dynamic contact power supply structure, the device under test 11 can obtain power continuously within a preset moving speed range. Compared with the traditional method of moving the device under test 11 away from the production line 10 and powering it on at a fixed power supply, the circulating moving power supply device provided by the present invention does not need to move the device under test 11 away from the production line 10. Only by arranging the circulating moving power supply device in parallel with the production line 10 and making the annular circulating moving mechanism 2 and the production line 10 move synchronously, it can realize synchronous moving power supply for the moving device under test 11 on the production line 10, thereby greatly improving the test efficiency;

[0051] At the same time, in the present invention, an annular layout is adopted to make the power supply system occupy a small area, which is particularly suitable for the transformation of automated production lines 10 with limited space; in addition, by increasing the number of parallel current collectors 4, a maximum power output of 120kW can be realized, supporting parallel power supply of multiple voltage levels (48V - 380V), so that the present invention has good compatibility and expandability; the present invention has passed a continuous operation test of more than 72 hours, and key indicators such as voltage stability and temperature rise control meet the national standard requirements.

[0052] As a preferred embodiment, the current collector 4 is arranged on the moving end of the annular circulating moving mechanism 2 through a slider assembly 5. Correspondingly, an annular slide rail 6 matching the moving path of the annular circulating moving mechanism 2 is arranged on the frame 1, and the slider assembly 5 is arranged on the annular slide rail 6 in a matching manner;

[0053] And the annular circulating moving mechanism 2, the annular slide rail 6 and the annular sliding contact wire 3 are sequentially arranged at intervals and parallel to each other from inside to outside;

[0054] The arrangement of the annular slide rail 6 and the slider assembly 5 provides effective guidance for the movement of the current collector 4, so as to ensure that the brush 41 on the current collector 4 can effectively contact the corresponding sliding contact wire, thereby ensuring stable output voltage; in this embodiment, the slider assembly 5 includes a slider support plate 51 and guide rollers 52 arranged on the bottom surface of the slider support plate 51. The guide rollers 52 are arranged in pairs at intervals and are used for slidably clamping on the annular slide rail 6;

[0055] The annular slide rail 6 includes an annular support and a guide plate arranged on the upper surface of the annular support, and both sides of the guide plate extend out of the annular support respectively to form guide wings; the paired guide rollers 52 are slidably arranged on the guide wings;

[0056] To further ensure that the current collector 4 can move smoothly without jamming, the annular slide rail 6 is processed by laser cutting to improve the flatness of the annular slide rail 6 and the smoothness of the cut.

[0057] As a preferred embodiment, the current collector 4 is arranged on the slider assembly 5 through a support frame 7; a socket 9 is arranged on the support frame 7 for the target test device 11 moving on the production line 10 to be plugged in, and the power terminals in the socket 9 are connected to the corresponding current collector 4; the arrangement of the socket 9 facilitates the plugging and unplugging of the target test device 11, makes the operation more convenient, and improves the test efficiency.

[0058] As a preferred embodiment, see Figure 1 and Figure 2 , the annular circulating moving mechanism 2 includes a driving motor 21 and a driving sprocket 22 arranged at one end of the frame 1, a driven sprocket 23 arranged at the other end of the frame 1, and a transmission chain 24 wound between the driving sprocket 22 and the driven sprocket 23;

[0059] The driving motor 21 is drivingly connected to the driving sprocket 22, and the plane where the transmission chain 24 is located is parallel to the upper plane of the frame 1. The transmission chain 24 constitutes the mobile end of the annular circulating moving mechanism 2. Specifically, in this embodiment, the annular circulating moving mechanism 2 is arranged on the support platform. At one end of the support platform, there is a first bushing. The driving shaft of the driving sprocket 22 passes through the first bushing and extends out of the first bushing, and its extended end is connected to the driving motor 21. The driving sprocket 22 is located above the upper surface of the support platform, and the driving motor 21 is located below the bottom surface of the support platform. Correspondingly, at the other end of the support platform, a second bushing is arranged in a matching manner, and the driven shaft of the driven sprocket 23 passes through the second bushing. The driven sprocket 23 is located above the upper surface of the support platform. The transmission chain 24 is wound between the driving sprocket 22 and the driven sprocket 23 and forms a closed loop. When the driving motor 21 is started, it drives the driving sprocket 22 to rotate, and the transmission chain 24 moves in a cycle, so as to drive the current collector 4 to move in a cycle.

[0060] Specifically, the slider assembly 5 is arranged on the transmission chain 24 through a connection buckle 8. One end of the upper surface of the slider support plate 51 is fixed with the current collector 4, and the other end is connected to the connection buckle 8 through a screw 85, so that the current collector 4 moves synchronously with the transmission chain 24.

[0061] As a preferred embodiment, the connection buckle 8 includes a first L-shaped connecting piece 81 and a second L-shaped connecting piece 82. The horizontal side of the first L-shaped connecting piece 81 is connected to the transmission chain 24, the vertical side of the first L-shaped connecting piece 81 is connected to the vertical side of the second L-shaped connecting piece 82, and a kidney-shaped hole 83 is arranged on the horizontal side of the second L-shaped connecting piece 82 for adjustably connecting with the slider assembly 5. The combined setting of the two L-shaped connecting pieces enables the connection buckle 8 to be finely adjusted in both the vertical direction and the horizontal direction, further ensuring that the brush 41 on the current collector 4 can effectively contact the sliding contact wire and stably output voltage.

[0062] In this embodiment, referring to Figure 3 and Figure 4 , a preset gap 84 is arranged between the lower surface of the horizontal side of the second L-shaped connecting piece 82 and the upper surface of the slider assembly 5.

[0063] The screw 85 passes through the kidney-shaped hole 83 and is connected to the slider assembly 5 through a thread pair, and a locking nut 86 is arranged on the screw 85. The locking nut 86 is arranged in the preset gap 84. Preferably, the screw 85 is a high-strength screw of grade 12.9.

[0064] In this embodiment, the slider assembly 5 is arranged on the transmission chain 24 through the connecting buckle 8. In the arc section of the annular slide rail 6, due to the continuous change of the driving force direction of the transmission chain 24, there is a continuous relative movement between the slider assembly 5 and the connecting buckle 8. Therefore, the waist-shaped hole 83 on the connecting buckle 8 can adapt to the position change of the slider assembly 5; a preset gap 84 is reserved between the connecting buckle 8 and the slider assembly 5, and the screw 85 is fixedly arranged on the slider assembly 5 through a lock nut 86 within the preset gap 84, so as to ensure the stable connection of the screw 85, eliminate the loosening phenomenon, and the setting of the waist-shaped hole 83 with a preset length enables the elastically arranged current collector 4 to slide within the waist-shaped hole 83 when the current collector 4 moves to the arc section, thereby avoiding the jamming phenomenon and further ensuring that the current collector 4 can have a continuous voltage output.

[0065] As a preferred embodiment, the power supply includes an isolation transformer for connecting to a 380V AC power supply and outputting 220V voltage;

[0066] The 380V AC power supply is supplied, and after passing through the isolation transformer, 220V is output with a power of 5KW. The internal components of the device 11 are isolated from the mains power to avoid electric shock when touching the components inside the device 11. The 220V output of the isolation transformer is electrically connected to the sliding contact line; the current collector 4 fixed on the slider assembly 5 is always in contact with the sliding contact line during operation to obtain 220V power supply and supply power to the load.

[0067] Embodiment 2

[0068] The present invention also provides a power supply method for a mobile device on a production line, including a cyclic mobile power supply device as provided in Embodiment 1. The steps of the power supply method include:

[0069] S1. The cyclic mobile power supply device is arranged in parallel inside the production line 10, and the moving direction of its straight section is the same as the moving direction of the production line 10; in this embodiment, taking the laser printer production aging test production line 10 as an example for illustration, see Figure 6 , a plurality of laser printers are placed on the production line 10 and move along with the production line 10 at a preset speed;

[0070] S2. Adjust the moving speed of the annular cyclic moving mechanism 2 to be the same as the moving speed of the production line 10 to make the two move synchronously;

[0071] S3. When the device 11 (laser printer) on the production line 10 moves to the first station at the position of the cyclic mobile power supply device, connect the power plug of the device 11 to the corresponding current collector 4 to obtain power supply;

[0072] S4. The production line 10 and the annular circulating moving mechanism 2 move synchronously, driving the device 11 (laser printer) to the second station for testing; after the testing is completed, the device 11 is synchronously moved to the third station, and then the power plug of the device 11 is unplugged. The device 11 continues to move on the production line 10, and the corresponding current collector 4 moves in a cycle;

[0073] S5. Repeat steps S3 and S4 to supply power and test all the devices 11 on the production line in sequence.

[0074] The power supply method provided by the present invention enables the device 11 to be tested on the production line 10 to continuously obtain power within a preset moving speed range through the closed-loop speed matching control of the production line 10 and the present circulating moving power supply device. At the same time, the multi-station relay power supply mode realizes the full-process live testing of the device 11 from the first station to the third station; compared with the traditional testing method of moving the device off the production line 10 to a fixed power source, the testing efficiency is greatly improved, and since there is no need to move the original production line 10, the labor intensity of the operator can also be reduced.

[0075] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A circulating mobile power supply device, characterized in that: include: A frame, an annular circulating moving mechanism arranged on the frame, and an annular busbar fixedly arranged on the frame; The annular busbar is connected to a power supply and is arranged at the periphery of the moving path of the annular circulating moving mechanism; The moving end of the annular circulating moving mechanism is provided with a plurality of current collectors, and the brush on each of the current collectors can be in sliding contact with the annular busbar and output a stable voltage for supplying power to the load.

2. A circulating mobile power supply device according to claim 1, characterized in that: The current collector is arranged at the moving end of the annular cyclic moving mechanism through a slider assembly. Correspondingly, an annular slide rail matching the moving path of the annular cyclic moving mechanism is provided on the frame, and the slider assembly is matched and arranged on the annular slide rail; The annular circulating moving mechanism, the annular slide rail and the annular busbar are sequentially arranged in parallel and at intervals from the inside to the outside.

3. A circulating mobile power supply device according to claim 2, characterized in that: The current collector is arranged on the slider assembly through a support frame; a socket is provided on the support frame for plugging in a target test device moving on the production line, and a power terminal in the socket is connected to a corresponding current collector.

4. A circulating mobile power supply device according to claim 2 or 3, characterized in that: The annular circulating moving mechanism comprises a driving motor and a driving sprocket arranged at one end of the frame, a driven sprocket arranged at the other end of the frame, and a transmission chain wound between the driving sprocket and the driven sprocket; The driving motor is drivingly connected to the active sprocket, and the plane where the transmission chain is located is arranged parallel to the upper plane of the frame, and the transmission chain constitutes the moving end of the annular circulating moving mechanism.

5. A circulating mobile power supply device according to claim 4, characterized in that: The slider assembly is arranged on the transmission chain through a connecting buckle.

6. A circulating mobile power supply device according to claim 5, characterized in that: The slider assembly includes a slider support plate and guide rollers arranged on the bottom surface of the slider support plate, wherein the guide rollers are arranged in pairs at intervals and are used to be slidably clamped on the annular slide rail; The current collector is fixed on one end of the upper surface of the slider support plate, and the other end is connected to the connecting buckle through a screw rod, so that the current collector moves synchronously with the transmission chain.

7. The circulating mobile power supply device according to claim 5, characterized in that: The connecting buckle includes a first L-shaped connecting piece and a second L-shaped connecting piece. The horizontal side of the first L-shaped connecting piece is connected to the transmission chain, the vertical side of the first L-shaped connecting piece is connected to the vertical side of the second L-shaped connecting piece, and the horizontal side of the second L-shaped connecting piece is provided with a waist-shaped hole for adjustable position connection with the slider assembly.

8. The circulating mobile power supply device according to claim 7, characterized in that: A preset gap is provided between the lower surface of the horizontal side of the second L-shaped connecting member and the upper surface of the slider assembly; The screw rod passes through the waist-shaped hole and is connected to the slider assembly through a threaded pair, and a locking nut is provided on the screw rod, and the locking nut is arranged in the preset gap.

9. A cyclic mobile power supply device according to any one of claims 1 to 3, characterized in that: The power supply includes an isolation transformer, which is used to connect to a 380V AC power supply and output a 220V voltage.

10. A method for powering mobile equipment on a production line, comprising a circulating mobile power supply device as claimed in any one of claims 1 to 9, characterized in that: The power supply method comprises the following steps: S1. The circulating mobile power supply device is arranged parallel to the inner side of the production line, and the moving direction of the straight section is consistent with the moving direction of the production line; S2, adjusting the moving speed of the annular circulation moving mechanism to be consistent with the moving speed of the production line so that the two move synchronously; S3. When the equipment on the production line moves to the first station of the cyclic mobile power supply device, the power plug of the equipment is connected to the collector at the corresponding position to obtain power supply; S4, the production line and the annular cyclic moving mechanism move synchronously, driving the device to the second station for testing; after the test is completed, the device is synchronously moved to the third station, and then the power plug of the device is unplugged, the device continues to move on the production line, and the corresponding collector moves cyclically; S5. Repeat steps S3 and S4 to supply power to all devices on the generation line in turn.

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